martedì 31 luglio 2018
W4HM Daily HF Radio Wave Propagation Forecast #2018-212
Greetings to my fellow hamateur radio and SWL radio enthusiasts around the
world.
Welcome to my “not for profit” daily W4HM Daily HF Radio Wave Propagation
Forecast.
It’s the only daily global HF radio wave propagation forecast produced on
the planet.
I'm a retired heliophysicist, terrestrial meteorologist/climatologist,
physical oceanographer and one of the few on the planet with advanced
education and forecast experience in all disciplines. In terrestrial weather
forecasting I
have 45 years of experience and in solar, space and geomagnetic weather
forecasting 34 years.
Created and disseminated by Thomas F. Giella, W4HM in Lakeland, FL, USA ©
1988-2018.
If you find this daily HF radio wave propagation forecast useful to your
hamateur and SWL radio activities, feel free to drop me a line and let me
know that at
thomasfgiella@gmail.com
I enjoy hearing from likeminded fellow radio enthusiasts.
Hams and SWLs that are interested in solar, space & geomagnetic weather as
well as radio wave propagation are a special group of people interested in
broadening their knowledge in science.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Supporting images associated with this daily HF radio wave propagation
forecast can be found in my Facebook account at
https://www.facebook.com/thomasfranklingiellaw4hm
and in my Twitter account at
https://twitter.com/GiellaW4hm
Last but not least here is my new HF radio wave propagation web page where
you can sign up to receive this daily HF radio wave propagation forecast via
email. https://groups.io/g/w4hmradiowavepropagationforecast but without
supporting images.
It's a NO SPAM voluntary "opt" in email type group hosted by Groups.io, so
you have to sign up by using an existing email address and creating a
password.
W4HM Solar Cycle 24 Update and Solar Cycle 25 Forecast- Short and to the
point.
Solar minimum may begin later this year and may last longer than any
previous solar cycle in the 20th century. When solar cycle 25 finally gets
underway it could be the weakest since the middle of the 19th century.
Another Dalton type lesser grand solar minimum may occur with a
corresponding cooling of earth’s climate. This would negate anthropogenic
climate change if it were occurring which it isn’t.
On February 1, 2008 I forecasted that solar cycle 24 would be the smallest
solar cycle in the past 100 years. That forecast verified. I also forecasted
that solar cycle 25 would be almost non nonexistent.
#211 Issued Tuesday July 31, 2018 at 1415 UTC
Important Solar, Space & Geomagnetic Weather Indices-
Solar activity was very low.
The daily solar flux index numbers (DSFI) were 67.6 68.3 68.8.
A new plage group has risen above the eastern limb of the sun and could bump
the daily DSFI numbers above 70.
There had been 9 consecutive days with a 2000 UTC daily solar flux index
number (DSFI) of less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 9 consecutive days with an official daily sunspot number
(DSSN) of 0 and 33 of the past 34 days.
In 2018 there had been 120 days with an official daily sunspot number (DSSN)
of 0.
There was no earth facing sunspot group(s).
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 0 0 0 2 1 2 2.
The 24 hour period maximum and minimum solar wind speed ranged between 339 &
277 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition “trend” on Jul 31, 2018- steady.
HF radio wave propagation condition “trend” on Aug 1, 2018- steady.
HF radio wave propagation condition “trend” on Aug 2, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in the summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the northern hemisphere summer season the 14000- 30000 kHz frequency
range closes later due to more sun light illuminating the ionosphere than in
the southern hemisphere. But the maximum usable frequency (MUF) is lower
than in the southern hemisphere as heating in the F2 layer of the ionosphere
is higher and the layer less concentrated.
Almost daily during the northern hemisphere summer season you will find that
the 25600- 26100 kHz and 28000-30000 kHz frequency ranges will open via
short north-south and east-west propagation paths via sporadic E (Es). Also
when multiple sporadic E (Es) clouds form and line up favorably much longer
propagation paths open up on east-west paths. And last but not least
north-south propagation paths occur across the equator via trans equatorial
propagation (TEP).
Southern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9+10 at night and S3-5 at
day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+15 at night and S4-7
at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S1-3 at
night and S5-8 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the southern hemisphere winter season the 14000- 30000 kHz frequency
range closes sooner due to less sun light illuminating the ionosphere than
in the northern hemisphere. But the maximum usable frequency (MUF) is higher
than in the northern hemisphere as the F2 layer of the ionosphere is lower
in height and more concentrated.
This HF Radio wave propagation forecast is produced based on the SIGINT_CAP
HF radio wave propagation prediction software. I wrote it beginning in the
late 1980’s but I’m sorry to say that it can’t be distributed to the general
public. It does outperform VOA CAP.
And though this HF radio wave propagation forecast is produced based on the
SIGINT_CAP software, I do check the actual band conditions at my location in
the USA and tweak the forecast manually where and when necessary.
I also check global HF radio wave propagation conditions via remoted radio
receivers on every continent of the globe and tweak the forecast manually if
and when necessary.
And last but not least I look at ionsonde stations on every continent of the
globe.
The hamateur radio JT65A mode RF signal levels received are based on 5 watts
and ½ wave dipole up at 40 feet.
The hamateur radio PSK31 mode RF signal levels received are based on 25
watts and ½ wave dipole up at 40 feet.
The hamateur radio CW mode RF signal levels received are based on 50 watts
and ½ wave dipole up at 40 feet.
The hamateur radio SSB RF mode signal levels received are based on 100 watts
and ½ wave dipole up at 40 feet.
The HF shortwave broadcast band AM Mode RF signal levels are based on
100,000 watts (100 kw) and a typical high gain VOA type curtain array
antenna.
Please keep in mind that this is a relatively simplified HF radio wave
propagation forecast, so as to keep it easily understandable and applicable
by the average radio enthusiast.
Globally HF radio wave propagation conditions are most evenly balanced
during the fall and spring equinoxes and most diametrically opposed during
the summer and winter solstices.
Conditions change daily, weekly, monthly, yearly and by decade, as the
sun rises and sets at different times and at different angles from the
ecliptic, as well as by radio wave frequency. This is due to changes in the
maximum usable frequency (MUF), lowest usable frequency (LUF) and F layer
critical frequency (FoF2). Also by propagation path.
The D and E layers also come into play through RF radio wave signal
absorption and refraction. And then there is sporadic E (Es) radio wave
propagation that can really throw a wrench into the gears so to speak.
Things like sporadic E (Es) radio wave propagation and lightning storm
static can impact HF radio wave propagation in an unpredictable manner and
mostly bad.
Ongoing solar, space and geomagnetic weather goings on also impact HF radio
wave propagation conditions in a negative manner.
Lower high frequency (80-30 meters) propagation conditions are impacted in a
negative manner not so much by variations in the maximum usable frequency
(MUF) along a particular propagation path and time but rather due to
geomagnetic elevated geomagnetic conditions (Kp-3-4), storms (Kp-5 &
greater) that increase signal absorption via the E layer (the altitude of
the radio aurora). Also increases in the lowest usable frequency (LUF) via D
layer RF signal absorption due to hard x-rays, galactic cosmic waves,
elevated background solar flux levels greater than B0 and energetic proton
flux levels at energies greater than 10 MeV (10+0).
Higher frequency (20-10 meters) propagation conditions are impacted in a
negative manner by variations in the maximum usable frequency (MUF) along a
particular propagation path and time due to the current sunspot number and
also due to elevated geomagnetic conditions (Kp-3-4), storms of Kp-5 &
greater. Also D layer RF signal absorption due to elevated (greater than B0)
background solar flux levels. Also to a lesser extent elevated proton flux
at energies greater than 10 MeV (10+0).
GENERAL GUIDELINES CONCERNING CORRELATION OF PROPAGATION INDICES TO ACTUAL
HF PROPAGATION CONDITIONS-
NOTE!!! The propagation indices "interpretations" are my personal
intellectual property. Therefore the radio wave propagation indices
interpretations contained herein is copyrighted © 1988-2018 by Thomas F.
Giella, W4HM, all rights reserved. Reproduction of information herein is
allowed without permission in advance as long as proper credit is given.
All 14 of the following indices have to occur as described below in order to
see the best global high frequency radio wave propagation possible,
something that happens rarely.
1.) Dropping geomagnetic field indices numbers are better, Kp of 0 best.
2.) A daily sunspot number of 150 or higher, 200 or higher best.
3.) A daily sunspot number of greater than 100 for routine stable formation
of the E Valley/F Layer ducting mechanism.
4.) Previous 24 hour Ap index under 10, fewer than 7 for several days
consecutively are best.
5.) Previous 3 hours Kp index fewer than 3 for mid latitude paths, fewer
than 2 for high latitude paths, 0 for several days consecutively is best.
6.) Energetic protons no greater than 10 MeV (10+0).
7.) Background x-ray flux levels greater than B1 for several days
consecutively, greater than C1 best.
8.) No current STRATWARM alert.
9.) Interplanetary magnetic field (IMF) Bz with a (positive number) sign,
indicates a lesser chance of high latitude path aurora
absorption/unpredictable refraction or scattering of medium frequency RF
signals, when the Kp is above 3.
10.) A -10 or better towards a positive number Dst index during the recovery
time after a geomagnetic storm, as related to the equatorial ring current. A
positive number is best.
Standard Disclaimer-
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, other U.S. government entities and educational
institutions, to produce this daily HF radio wave propagation
forecast. This data is gathered and made public by the U.S. Government using
taxpayer $$$ (including mine).
However this daily HF propagation forecast that I produce from the RAW
public domain data is my personal intellectual property. Therefore this
daily HF radio wave propagation forecast contained herein is copyrighted ©
1988-2018 by Thomas F. Giella, W4HM.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Also HF radio wave propagation forecasting is still an inexact
science and therefore also an art. The forecasts are not official but for
educational and hobby related purposes only and are subject to human error
and acts of God, therefore no guarantee or warranty implied.
world.
Welcome to my “not for profit” daily W4HM Daily HF Radio Wave Propagation
Forecast.
It’s the only daily global HF radio wave propagation forecast produced on
the planet.
I'm a retired heliophysicist, terrestrial meteorologist/climatologist,
physical oceanographer and one of the few on the planet with advanced
education and forecast experience in all disciplines. In terrestrial weather
forecasting I
have 45 years of experience and in solar, space and geomagnetic weather
forecasting 34 years.
Created and disseminated by Thomas F. Giella, W4HM in Lakeland, FL, USA ©
1988-2018.
If you find this daily HF radio wave propagation forecast useful to your
hamateur and SWL radio activities, feel free to drop me a line and let me
know that at
thomasfgiella@gmail.com
I enjoy hearing from likeminded fellow radio enthusiasts.
Hams and SWLs that are interested in solar, space & geomagnetic weather as
well as radio wave propagation are a special group of people interested in
broadening their knowledge in science.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Supporting images associated with this daily HF radio wave propagation
forecast can be found in my Facebook account at
https://www.facebook.com/thomasfranklingiellaw4hm
and in my Twitter account at
https://twitter.com/GiellaW4hm
Last but not least here is my new HF radio wave propagation web page where
you can sign up to receive this daily HF radio wave propagation forecast via
email. https://groups.io/g/w4hmradiowavepropagationforecast but without
supporting images.
It's a NO SPAM voluntary "opt" in email type group hosted by Groups.io, so
you have to sign up by using an existing email address and creating a
password.
W4HM Solar Cycle 24 Update and Solar Cycle 25 Forecast- Short and to the
point.
Solar minimum may begin later this year and may last longer than any
previous solar cycle in the 20th century. When solar cycle 25 finally gets
underway it could be the weakest since the middle of the 19th century.
Another Dalton type lesser grand solar minimum may occur with a
corresponding cooling of earth’s climate. This would negate anthropogenic
climate change if it were occurring which it isn’t.
On February 1, 2008 I forecasted that solar cycle 24 would be the smallest
solar cycle in the past 100 years. That forecast verified. I also forecasted
that solar cycle 25 would be almost non nonexistent.
#211 Issued Tuesday July 31, 2018 at 1415 UTC
Important Solar, Space & Geomagnetic Weather Indices-
Solar activity was very low.
The daily solar flux index numbers (DSFI) were 67.6 68.3 68.8.
A new plage group has risen above the eastern limb of the sun and could bump
the daily DSFI numbers above 70.
There had been 9 consecutive days with a 2000 UTC daily solar flux index
number (DSFI) of less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 9 consecutive days with an official daily sunspot number
(DSSN) of 0 and 33 of the past 34 days.
In 2018 there had been 120 days with an official daily sunspot number (DSSN)
of 0.
There was no earth facing sunspot group(s).
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 0 0 0 2 1 2 2.
The 24 hour period maximum and minimum solar wind speed ranged between 339 &
277 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition “trend” on Jul 31, 2018- steady.
HF radio wave propagation condition “trend” on Aug 1, 2018- steady.
HF radio wave propagation condition “trend” on Aug 2, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in the summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the northern hemisphere summer season the 14000- 30000 kHz frequency
range closes later due to more sun light illuminating the ionosphere than in
the southern hemisphere. But the maximum usable frequency (MUF) is lower
than in the southern hemisphere as heating in the F2 layer of the ionosphere
is higher and the layer less concentrated.
Almost daily during the northern hemisphere summer season you will find that
the 25600- 26100 kHz and 28000-30000 kHz frequency ranges will open via
short north-south and east-west propagation paths via sporadic E (Es). Also
when multiple sporadic E (Es) clouds form and line up favorably much longer
propagation paths open up on east-west paths. And last but not least
north-south propagation paths occur across the equator via trans equatorial
propagation (TEP).
Southern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9+10 at night and S3-5 at
day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+15 at night and S4-7
at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S1-3 at
night and S5-8 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the southern hemisphere winter season the 14000- 30000 kHz frequency
range closes sooner due to less sun light illuminating the ionosphere than
in the northern hemisphere. But the maximum usable frequency (MUF) is higher
than in the northern hemisphere as the F2 layer of the ionosphere is lower
in height and more concentrated.
This HF Radio wave propagation forecast is produced based on the SIGINT_CAP
HF radio wave propagation prediction software. I wrote it beginning in the
late 1980’s but I’m sorry to say that it can’t be distributed to the general
public. It does outperform VOA CAP.
And though this HF radio wave propagation forecast is produced based on the
SIGINT_CAP software, I do check the actual band conditions at my location in
the USA and tweak the forecast manually where and when necessary.
I also check global HF radio wave propagation conditions via remoted radio
receivers on every continent of the globe and tweak the forecast manually if
and when necessary.
And last but not least I look at ionsonde stations on every continent of the
globe.
The hamateur radio JT65A mode RF signal levels received are based on 5 watts
and ½ wave dipole up at 40 feet.
The hamateur radio PSK31 mode RF signal levels received are based on 25
watts and ½ wave dipole up at 40 feet.
The hamateur radio CW mode RF signal levels received are based on 50 watts
and ½ wave dipole up at 40 feet.
The hamateur radio SSB RF mode signal levels received are based on 100 watts
and ½ wave dipole up at 40 feet.
The HF shortwave broadcast band AM Mode RF signal levels are based on
100,000 watts (100 kw) and a typical high gain VOA type curtain array
antenna.
Please keep in mind that this is a relatively simplified HF radio wave
propagation forecast, so as to keep it easily understandable and applicable
by the average radio enthusiast.
Globally HF radio wave propagation conditions are most evenly balanced
during the fall and spring equinoxes and most diametrically opposed during
the summer and winter solstices.
Conditions change daily, weekly, monthly, yearly and by decade, as the
sun rises and sets at different times and at different angles from the
ecliptic, as well as by radio wave frequency. This is due to changes in the
maximum usable frequency (MUF), lowest usable frequency (LUF) and F layer
critical frequency (FoF2). Also by propagation path.
The D and E layers also come into play through RF radio wave signal
absorption and refraction. And then there is sporadic E (Es) radio wave
propagation that can really throw a wrench into the gears so to speak.
Things like sporadic E (Es) radio wave propagation and lightning storm
static can impact HF radio wave propagation in an unpredictable manner and
mostly bad.
Ongoing solar, space and geomagnetic weather goings on also impact HF radio
wave propagation conditions in a negative manner.
Lower high frequency (80-30 meters) propagation conditions are impacted in a
negative manner not so much by variations in the maximum usable frequency
(MUF) along a particular propagation path and time but rather due to
geomagnetic elevated geomagnetic conditions (Kp-3-4), storms (Kp-5 &
greater) that increase signal absorption via the E layer (the altitude of
the radio aurora). Also increases in the lowest usable frequency (LUF) via D
layer RF signal absorption due to hard x-rays, galactic cosmic waves,
elevated background solar flux levels greater than B0 and energetic proton
flux levels at energies greater than 10 MeV (10+0).
Higher frequency (20-10 meters) propagation conditions are impacted in a
negative manner by variations in the maximum usable frequency (MUF) along a
particular propagation path and time due to the current sunspot number and
also due to elevated geomagnetic conditions (Kp-3-4), storms of Kp-5 &
greater. Also D layer RF signal absorption due to elevated (greater than B0)
background solar flux levels. Also to a lesser extent elevated proton flux
at energies greater than 10 MeV (10+0).
GENERAL GUIDELINES CONCERNING CORRELATION OF PROPAGATION INDICES TO ACTUAL
HF PROPAGATION CONDITIONS-
NOTE!!! The propagation indices "interpretations" are my personal
intellectual property. Therefore the radio wave propagation indices
interpretations contained herein is copyrighted © 1988-2018 by Thomas F.
Giella, W4HM, all rights reserved. Reproduction of information herein is
allowed without permission in advance as long as proper credit is given.
All 14 of the following indices have to occur as described below in order to
see the best global high frequency radio wave propagation possible,
something that happens rarely.
1.) Dropping geomagnetic field indices numbers are better, Kp of 0 best.
2.) A daily sunspot number of 150 or higher, 200 or higher best.
3.) A daily sunspot number of greater than 100 for routine stable formation
of the E Valley/F Layer ducting mechanism.
4.) Previous 24 hour Ap index under 10, fewer than 7 for several days
consecutively are best.
5.) Previous 3 hours Kp index fewer than 3 for mid latitude paths, fewer
than 2 for high latitude paths, 0 for several days consecutively is best.
6.) Energetic protons no greater than 10 MeV (10+0).
7.) Background x-ray flux levels greater than B1 for several days
consecutively, greater than C1 best.
8.) No current STRATWARM alert.
9.) Interplanetary magnetic field (IMF) Bz with a (positive number) sign,
indicates a lesser chance of high latitude path aurora
absorption/unpredictable refraction or scattering of medium frequency RF
signals, when the Kp is above 3.
10.) A -10 or better towards a positive number Dst index during the recovery
time after a geomagnetic storm, as related to the equatorial ring current. A
positive number is best.
Standard Disclaimer-
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, other U.S. government entities and educational
institutions, to produce this daily HF radio wave propagation
forecast. This data is gathered and made public by the U.S. Government using
taxpayer $$$ (including mine).
However this daily HF propagation forecast that I produce from the RAW
public domain data is my personal intellectual property. Therefore this
daily HF radio wave propagation forecast contained herein is copyrighted ©
1988-2018 by Thomas F. Giella, W4HM.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Also HF radio wave propagation forecasting is still an inexact
science and therefore also an art. The forecasts are not official but for
educational and hobby related purposes only and are subject to human error
and acts of God, therefore no guarantee or warranty implied.
Agenda DX 31/07/2018
ANNIVERSARIO EMITTENTI
Voice of National Salvation S/OFF, South Korea (2003)
Radio Jaragua, Brasile 1010 Khz (1948)
Radio Celinauta, Brasile 1010 Khz (1954)
Radio Loyola, Bolivia 5996 Khz (1950)
Radio Ghana 3366 - 4915 Khz (1936)
Voice of National Salvation S/OFF, South Korea (2003)
Radio Jaragua, Brasile 1010 Khz (1948)
Radio Celinauta, Brasile 1010 Khz (1954)
Radio Loyola, Bolivia 5996 Khz (1950)
Radio Ghana 3366 - 4915 Khz (1936)
lunedì 30 luglio 2018
QSL Empire Radio
QSL Empire Radio 6266 KHz - empire.radio@hotmail.com con QSL elettronica
allegata in 1 giorno. (R. Pavanello)
Propagation outlook from Boulder
:Product: Weekly Highlights and Forecasts
:Issued: 2018 Jul 30 0029 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 23 - 29 July 2018
Solar activity was very low throughout the week. No active regions
with sunspots were observed this period and a single B1 flare at
29/2148 UTC, from an unnumbered region behind the eastern limb, was
the only flare reported this week.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 25-29 Jul and moderate levels were observed on 23-24
Jul.
Geomagnetic field activity reached active levels on 24 Jul due to
the influence of a negative polarity coronal hole high speed stream.
Quiet to unsettled conditions were observed on 25 Jul and generally
quiet conditions were observed throughout the remainder of the
period.
FORECAST OF SOLAR AND GEOMAGNETIC ACTIVITY 30 JULY - 25 AUGUST 2018
Solar activity is expected to be very low throughout the outlook
period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high levels on 30-31 Jul, and 21-25 Aug. The
greater than 2 MeV electron flux is expected to remain below event
threshold throughout the remainder of the outlook period.
Geomagnetic field activity is likely to reach G1 (Minor) geomagnetic
storm levels on 20 Aug and active levels are likely on 17 and 21
Aug, all due to the influences of multiple coronal hole high speed
streams. Quiet or quiet to unsettled levels are expected throughout
the remainder of the outlook period.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 Jul 30 0029 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2018-07-30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2018 Jul 30 68 5 2
2018 Jul 31 68 5 2
2018 Aug 01 68 5 2
2018 Aug 02 68 5 2
2018 Aug 03 68 5 2
2018 Aug 04 68 5 2
2018 Aug 05 68 5 2
2018 Aug 06 68 10 3
2018 Aug 07 68 8 3
2018 Aug 08 68 5 2
2018 Aug 09 68 5 2
2018 Aug 10 68 5 2
2018 Aug 11 70 5 2
2018 Aug 12 70 8 3
2018 Aug 13 70 8 3
2018 Aug 14 70 5 2
2018 Aug 15 70 5 2
2018 Aug 16 70 8 3
2018 Aug 17 70 12 4
2018 Aug 18 68 5 2
2018 Aug 19 68 5 2
2018 Aug 20 68 20 5
2018 Aug 21 66 12 4
2018 Aug 22 66 5 2
2018 Aug 23 66 5 2
2018 Aug 24 68 5 2
2018 Aug 25 68 5 2
(SWPC via DXLD)
:Issued: 2018 Jul 30 0029 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 23 - 29 July 2018
Solar activity was very low throughout the week. No active regions
with sunspots were observed this period and a single B1 flare at
29/2148 UTC, from an unnumbered region behind the eastern limb, was
the only flare reported this week.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 25-29 Jul and moderate levels were observed on 23-24
Jul.
Geomagnetic field activity reached active levels on 24 Jul due to
the influence of a negative polarity coronal hole high speed stream.
Quiet to unsettled conditions were observed on 25 Jul and generally
quiet conditions were observed throughout the remainder of the
period.
FORECAST OF SOLAR AND GEOMAGNETIC ACTIVITY 30 JULY - 25 AUGUST 2018
Solar activity is expected to be very low throughout the outlook
period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high levels on 30-31 Jul, and 21-25 Aug. The
greater than 2 MeV electron flux is expected to remain below event
threshold throughout the remainder of the outlook period.
Geomagnetic field activity is likely to reach G1 (Minor) geomagnetic
storm levels on 20 Aug and active levels are likely on 17 and 21
Aug, all due to the influences of multiple coronal hole high speed
streams. Quiet or quiet to unsettled levels are expected throughout
the remainder of the outlook period.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 Jul 30 0029 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2018-07-30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2018 Jul 30 68 5 2
2018 Jul 31 68 5 2
2018 Aug 01 68 5 2
2018 Aug 02 68 5 2
2018 Aug 03 68 5 2
2018 Aug 04 68 5 2
2018 Aug 05 68 5 2
2018 Aug 06 68 10 3
2018 Aug 07 68 8 3
2018 Aug 08 68 5 2
2018 Aug 09 68 5 2
2018 Aug 10 68 5 2
2018 Aug 11 70 5 2
2018 Aug 12 70 8 3
2018 Aug 13 70 8 3
2018 Aug 14 70 5 2
2018 Aug 15 70 5 2
2018 Aug 16 70 8 3
2018 Aug 17 70 12 4
2018 Aug 18 68 5 2
2018 Aug 19 68 5 2
2018 Aug 20 68 20 5
2018 Aug 21 66 12 4
2018 Aug 22 66 5 2
2018 Aug 23 66 5 2
2018 Aug 24 68 5 2
2018 Aug 25 68 5 2
(SWPC via DXLD)
Welcome to EDXC Conference 2018
We would like to invite you to the EDXC Conference 2018 to be held in Bratislava, Slovakia on 31 August-2 September with an additional programme in Vienna, Austria on 2-3 September.
Our conference hotel in Bratislava is Hotel West (http://www.hotel-west.sk) We have agreed the following special prices with the hotel:
Single room for 49 €/per room/per night
Twin bed room for 59€/per room/per night
Prices include: buffet breakfast, VAT, parking.
City tax (1,70€/person/night) not included in the price
The rooms can be booked by sending an email to Ms Michaela Kvasničková (hotel@hotel-west.sk). For the booking, please add following information in your message:
– Dates
– Type of the room (single/twin)
– Code: EDXC (to get our special prices)
There might be a possibility to book also triple rooms. Their availability can be asked from the hotel.
The preliminary programme is as follows:
All times in CEST
Thursday, 30 August 2018
– informal gathering in the evening for those arriving already on 30 August or earlier
Friday, 31 August 2018
– 1200 Registration will be opened
– 1400 Opening of the conference
– 1430 Lectures and presentations (to be confirmed)
– 1900 Dinner on your own
Saturday, 1 September 2018
– Breakfast
– 1000 Tour in Bratislava and maybe Hungary, too, lunch during the tour
– 1530 DX programme at the hotel (to be confirmed)
– 1900 EDXC Banquet
Sunday, 2 September 2018
– Breakfast
– 0930 EDXC matters and future plans
– 1100 Lunch on your own
– 1200 Check-out, transfer to Vienna
– 1330 Arrival and a tour in Vienna (visiting radio stations)
– 1700 End of the official programme, departures for those leaving already on 2 September
– 1800 Free time in Vienna, accommodation and dinner on your own (possible hotels to be informed)
Monday, 3 September 2018 (extended programme):
– visiting radio stations and other places of interest in Vienna
– departures
If you have anything to ask, please, do not hesitate to contact Kari (ksk@sdxl.fi). More information can be found also on EDXC blog (www.edxcnews.wordpress.com/category/edxc-conference-2018/).
Once again, we would like to see you at EDXC conference 2018. You are warmly welcome!
Kari Kivekäs
Secretary General of EDXC
Jan-Mikael Nurmela
Assistant Secretary General of EDXC
Stations heard in Reinante
ANGOLA, 4949.75, Radio Nacional de Angola, Mulenvos, 1956-2008, 29-07,
Portuguese, comments. Very weak today. 15321.
BRAZIL
11735, Radio
Transmundial, Santa María, 1929-2025, 29-07, “transmundial.com.br”,
“Transmundial, para todo o mundo ouvir”, “Domingo na Radio”, at 2020 program
“Didática”. 24332.
11780, Radio Nacional da Amazonia, Brasilia,
2001-2028, 28-07, soccer comments, “Campeonato Brasileiro”, id. “Nacional”.
25322.
11855.7, Radio Aparecida, Aparecida, 2016-2029, 28-07, religous
comments and songs. 24322.
CANADA, 6070, CFRX, Toronto, 0515-0535, 30-07,
English, comments, very weak and audible only for moments when Chanel 292 signal
faded. 11321.
CONGO, 6115, Radio Congo, Brazaville, 1823-1828, 28-07,
French, comments. 25322.
ETHIOPIA, 6090, Voice of Amhara State, Addis
Ababa, 1835-1846, 28-07, Vernacular comments. 15321.
KUWAIT, 5860, Radio
Farda, Kuwait, 1825-1837, 29-07, Persian, songs, comments. 24322.
MEXICO,
6185, Radio Educación, Ciudad de México, 0458-0505*, 30-07, songs.
15321.
PERU, 4920.8, Radio La Voz del Pueblo, Santiago de Chuco,
0445-0705, 30-07, only carrier detected here in Reinante, but via remote SDR
Kiwi Pardinho, near Sao Paulo, 4920.77, clear signal with Peruvian songs between
0445 and 0453, 0453-0558, no audio, only carrier, at 0558 audio again, more very
nice Peruvian songs, no comments, no identification. SINPO via SDR Kiwi
Pardinho. 35433.
SOMALILAND, 7120, Radio Hargeisa, Hargeisa, 1837-1848,
28-07, Vernacular comments. 24322.
Manuel Méndez
Lugo, Spain
Logs in Reinante
Tecsun S-8800, cable antenna, 8 meters
Lugo, Spain
Logs in Reinante
Tecsun S-8800, cable antenna, 8 meters
W4HM Daily HF Radio Wave Propagation Forecast #2018-210
Greetings to my fellow hamateur radio and SWL radio enthusiasts around the
world.
Welcome to my “not for profit” daily W4HM Daily HF Radio Wave Propagation
Forecast.
It’s the only daily global HF radio wave propagation forecast produced on
the planet.
I'm a retired heliophysicist, terrestrial meteorologist/climatologist,
physical oceanographer and one of the few on the planet with advanced
education and forecast experience in all disciplines. In terrestrial weather
forecasting I
have 45 years of experience and in solar, space and geomagnetic weather
forecasting 34 years.
Created and disseminated by Thomas F. Giella, W4HM in Lakeland, FL, USA ©
1988-2018.
If you find this daily HF radio wave propagation forecast useful to your
hamateur and SWL radio activities, feel free to drop me a line and let me
know that at
thomasfgiella@gmail.com
I enjoy hearing from likeminded fellow radio enthusiasts.
Hams and SWLs that are interested in solar, space & geomagnetic weather as
well as radio wave propagation are a special group of people interested in
broadening their knowledge in science.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Supporting images associated with this daily HF radio wave propagation
forecast can be found in my Facebook account at
https://www.facebook.com/thomasfranklingiellaw4hm
and in my Twitter account at
https://twitter.com/GiellaW4hm
Last but not least here is my new HF radio wave propagation web page where
you can sign up to receive this daily HF radio wave propagation forecast via
email. https://groups.io/g/w4hmradiowavepropagationforecast but without
supporting images.
It's a NO SPAM voluntary "opt" in email type group hosted by Groups.io, so
you have to sign up by using an existing email address and creating a
password.
W4HM Solar Cycle 24 Update and Solar Cycle 25 Forecast- Short and to the
point.
Solar minimum may begin later this year and may last longer than any
previous solar cycle in the 20th century. When solar cycle 25 finally gets
underway it could be the weakest since the middle of the 19th century.
Another Dalton type lesser grand solar minimum may occur with a
corresponding cooling of earth’s climate. This would negate anthropogenic
climate change if it were occurring which it isn’t.
On February 1, 2008 I forecasted that solar cycle 24 would be the smallest
solar cycle in the past 100 years. That forecast verified. I also forecasted
that solar cycle 25 would be almost non nonexistent.
#210 Issued Monday July 30, 2018 at 1400 UTC
Important Solar, Space & Geomagnetic Weather Indices-
Solar activity was very low.
The daily solar flux index numbers (DSFI) were 68.0 68.0 68.4
There had been 8 consecutive days with a 2000 UTC daily solar flux index
number (DSFI) of less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 8 consecutive days with an official daily sunspot number
(DSSN) of 0 and 32 of the past 33 days.
In 2018 there had been 119 days with an official daily sunspot number (DSSN)
of 0.
There was no earth facing sunspot group(s).
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 1 1 1 1 1 1 1.
The 24 hour period maximum and minimum solar wind speed ranged between 360 &
288 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition “trend” on Jul 30, 2018- steady.
HF radio wave propagation condition “trend” on Jul 31, 2018- steady.
HF radio wave propagation condition “trend” on Aug 1, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in the summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the northern hemisphere summer season the 14000- 30000 kHz frequency
range closes later due to more sun light illuminating the ionosphere than in
the southern hemisphere. But the maximum usable frequency (MUF) is lower
than in the southern hemisphere as heating in the F2 layer of the ionosphere
is higher and the layer less concentrated.
Almost daily during the northern hemisphere summer season you will find that
the 25600- 26100 kHz and 28000-30000 kHz frequency ranges will open via
short north-south and east-west propagation paths via sporadic E (Es). Also
when multiple sporadic E (Es) clouds form and line up favorably much longer
propagation paths open up on east-west paths. And last but not least
north-south propagation paths occur across the equator via trans equatorial
propagation (TEP).
Southern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9+10 at night and S3-5 at
day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+15 at night and S4-7
at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S1-3 at
night and S5-8 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the southern hemisphere winter season the 14000- 30000 kHz frequency
range closes sooner due to less sun light illuminating the ionosphere than
in the northern hemisphere. But the maximum usable frequency (MUF) is higher
than in the northern hemisphere as the F2 layer of the ionosphere is lower
in height and more concentrated.
This HF Radio wave propagation forecast is produced based on the SIGINT_CAP
HF radio wave propagation prediction software. I wrote it beginning in the
late 1980’s but I’m sorry to say that it can’t be distributed to the general
public. It does outperform VOA CAP.
And though this HF radio wave propagation forecast is produced based on the
SIGINT_CAP software, I do check the actual band conditions at my location in
the USA and tweak the forecast manually where and when necessary.
I also check global HF radio wave propagation conditions via remoted radio
receivers on every continent of the globe and tweak the forecast manually if
and when necessary.
And last but not least I look at ionsonde stations on every continent of the
globe.
The hamateur radio JT65A mode RF signal levels received are based on 5 watts
and ½ wave dipole up at 40 feet.
The hamateur radio PSK31 mode RF signal levels received are based on 25
watts and ½ wave dipole up at 40 feet.
The hamateur radio CW mode RF signal levels received are based on 50 watts
and ½ wave dipole up at 40 feet.
The hamateur radio SSB RF mode signal levels received are based on 100 watts
and ½ wave dipole up at 40 feet.
The HF shortwave broadcast band AM Mode RF signal levels are based on
100,000 watts (100 kw) and a typical high gain VOA type curtain array
antenna.
Please keep in mind that this is a relatively simplified HF radio wave
propagation forecast, so as to keep it easily understandable and applicable
by the average radio enthusiast.
Globally HF radio wave propagation conditions are most evenly balanced
during the fall and spring equinoxes and most diametrically opposed during
the summer and winter solstices.
Conditions change daily, weekly, monthly, yearly and by decade, as the
sun rises and sets at different times and at different angles from the
ecliptic, as well as by radio wave frequency. This is due to changes in the
maximum usable frequency (MUF), lowest usable frequency (LUF) and F layer
critical frequency (FoF2). Also by propagation path.
The D and E layers also come into play through RF radio wave signal
absorption and refraction. And then there is sporadic E (Es) radio wave
propagation that can really throw a wrench into the gears so to speak.
Things like sporadic E (Es) radio wave propagation and lightning storm
static can impact HF radio wave propagation in an unpredictable manner and
mostly bad.
Ongoing solar, space and geomagnetic weather goings on also impact HF radio
wave propagation conditions in a negative manner.
Lower high frequency (80-30 meters) propagation conditions are impacted in a
negative manner not so much by variations in the maximum usable frequency
(MUF) along a particular propagation path and time but rather due to
geomagnetic elevated geomagnetic conditions (Kp-3-4), storms (Kp-5 &
greater) that increase signal absorption via the E layer (the altitude of
the radio aurora). Also increases in the lowest usable frequency (LUF) via D
layer RF signal absorption due to hard x-rays, galactic cosmic waves,
elevated background solar flux levels greater than B0 and energetic proton
flux levels at energies greater than 10 MeV (10+0).
Higher frequency (20-10 meters) propagation conditions are impacted in a
negative manner by variations in the maximum usable frequency (MUF) along a
particular propagation path and time due to the current sunspot number and
also due to elevated geomagnetic conditions (Kp-3-4), storms of Kp-5 &
greater. Also D layer RF signal absorption due to elevated (greater than B0)
background solar flux levels. Also to a lesser extent elevated proton flux
at energies greater than 10 MeV (10+0).
GENERAL GUIDELINES CONCERNING CORRELATION OF PROPAGATION INDICES TO ACTUAL
HF PROPAGATION CONDITIONS-
NOTE!!! The propagation indices "interpretations" are my personal
intellectual property. Therefore the radio wave propagation indices
interpretations contained herein is copyrighted © 1988-2018 by Thomas F.
Giella, W4HM, all rights reserved. Reproduction of information herein is
allowed without permission in advance as long as proper credit is given.
All 14 of the following indices have to occur as described below in order to
see the best global high frequency radio wave propagation possible,
something that happens rarely.
1.) Dropping geomagnetic field indices numbers are better, Kp of 0 best.
2.) A daily sunspot number of 150 or higher, 200 or higher best.
3.) A daily sunspot number of greater than 100 for routine stable formation
of the E Valley/F Layer ducting mechanism.
4.) Previous 24 hour Ap index under 10, fewer than 7 for several days
consecutively are best.
5.) Previous 3 hours Kp index fewer than 3 for mid latitude paths, fewer
than 2 for high latitude paths, 0 for several days consecutively is best.
6.) Energetic protons no greater than 10 MeV (10+0).
7.) Background x-ray flux levels greater than B1 for several days
consecutively, greater than C1 best.
8.) No current STRATWARM alert.
9.) Interplanetary magnetic field (IMF) Bz with a (positive number) sign,
indicates a lesser chance of high latitude path aurora
absorption/unpredictable refraction or scattering of medium frequency RF
signals, when the Kp is above 3.
10.) A -10 or better towards a positive number Dst index during the recovery
time after a geomagnetic storm, as related to the equatorial ring current. A
positive number is best.
Standard Disclaimer-
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, other U.S. government entities and educational
institutions, to produce this daily HF radio wave propagation
forecast. This data is gathered and made public by the U.S. Government using
taxpayer $$$ (including mine).
However this daily HF propagation forecast that I produce from the RAW
public domain data is my personal intellectual property. Therefore this
daily HF radio wave propagation forecast contained herein is copyrighted ©
1988-2018 by Thomas F. Giella, W4HM.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Also HF radio wave propagation forecasting is still an inexact
science and therefore also an art. The forecasts are not official but for
educational and hobby related purposes only and are subject to human error
and acts of God, therefore no guarantee or warranty implied.
world.
Welcome to my “not for profit” daily W4HM Daily HF Radio Wave Propagation
Forecast.
It’s the only daily global HF radio wave propagation forecast produced on
the planet.
I'm a retired heliophysicist, terrestrial meteorologist/climatologist,
physical oceanographer and one of the few on the planet with advanced
education and forecast experience in all disciplines. In terrestrial weather
forecasting I
have 45 years of experience and in solar, space and geomagnetic weather
forecasting 34 years.
Created and disseminated by Thomas F. Giella, W4HM in Lakeland, FL, USA ©
1988-2018.
If you find this daily HF radio wave propagation forecast useful to your
hamateur and SWL radio activities, feel free to drop me a line and let me
know that at
thomasfgiella@gmail.com
I enjoy hearing from likeminded fellow radio enthusiasts.
Hams and SWLs that are interested in solar, space & geomagnetic weather as
well as radio wave propagation are a special group of people interested in
broadening their knowledge in science.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Supporting images associated with this daily HF radio wave propagation
forecast can be found in my Facebook account at
https://www.facebook.com/thomasfranklingiellaw4hm
and in my Twitter account at
https://twitter.com/GiellaW4hm
Last but not least here is my new HF radio wave propagation web page where
you can sign up to receive this daily HF radio wave propagation forecast via
email. https://groups.io/g/w4hmradiowavepropagationforecast but without
supporting images.
It's a NO SPAM voluntary "opt" in email type group hosted by Groups.io, so
you have to sign up by using an existing email address and creating a
password.
W4HM Solar Cycle 24 Update and Solar Cycle 25 Forecast- Short and to the
point.
Solar minimum may begin later this year and may last longer than any
previous solar cycle in the 20th century. When solar cycle 25 finally gets
underway it could be the weakest since the middle of the 19th century.
Another Dalton type lesser grand solar minimum may occur with a
corresponding cooling of earth’s climate. This would negate anthropogenic
climate change if it were occurring which it isn’t.
On February 1, 2008 I forecasted that solar cycle 24 would be the smallest
solar cycle in the past 100 years. That forecast verified. I also forecasted
that solar cycle 25 would be almost non nonexistent.
#210 Issued Monday July 30, 2018 at 1400 UTC
Important Solar, Space & Geomagnetic Weather Indices-
Solar activity was very low.
The daily solar flux index numbers (DSFI) were 68.0 68.0 68.4
There had been 8 consecutive days with a 2000 UTC daily solar flux index
number (DSFI) of less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 8 consecutive days with an official daily sunspot number
(DSSN) of 0 and 32 of the past 33 days.
In 2018 there had been 119 days with an official daily sunspot number (DSSN)
of 0.
There was no earth facing sunspot group(s).
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 1 1 1 1 1 1 1.
The 24 hour period maximum and minimum solar wind speed ranged between 360 &
288 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition “trend” on Jul 30, 2018- steady.
HF radio wave propagation condition “trend” on Jul 31, 2018- steady.
HF radio wave propagation condition “trend” on Aug 1, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in the summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the northern hemisphere summer season the 14000- 30000 kHz frequency
range closes later due to more sun light illuminating the ionosphere than in
the southern hemisphere. But the maximum usable frequency (MUF) is lower
than in the southern hemisphere as heating in the F2 layer of the ionosphere
is higher and the layer less concentrated.
Almost daily during the northern hemisphere summer season you will find that
the 25600- 26100 kHz and 28000-30000 kHz frequency ranges will open via
short north-south and east-west propagation paths via sporadic E (Es). Also
when multiple sporadic E (Es) clouds form and line up favorably much longer
propagation paths open up on east-west paths. And last but not least
north-south propagation paths occur across the equator via trans equatorial
propagation (TEP).
Southern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9+10 at night and S3-5 at
day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+15 at night and S4-7
at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S1-3 at
night and S5-8 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the southern hemisphere winter season the 14000- 30000 kHz frequency
range closes sooner due to less sun light illuminating the ionosphere than
in the northern hemisphere. But the maximum usable frequency (MUF) is higher
than in the northern hemisphere as the F2 layer of the ionosphere is lower
in height and more concentrated.
This HF Radio wave propagation forecast is produced based on the SIGINT_CAP
HF radio wave propagation prediction software. I wrote it beginning in the
late 1980’s but I’m sorry to say that it can’t be distributed to the general
public. It does outperform VOA CAP.
And though this HF radio wave propagation forecast is produced based on the
SIGINT_CAP software, I do check the actual band conditions at my location in
the USA and tweak the forecast manually where and when necessary.
I also check global HF radio wave propagation conditions via remoted radio
receivers on every continent of the globe and tweak the forecast manually if
and when necessary.
And last but not least I look at ionsonde stations on every continent of the
globe.
The hamateur radio JT65A mode RF signal levels received are based on 5 watts
and ½ wave dipole up at 40 feet.
The hamateur radio PSK31 mode RF signal levels received are based on 25
watts and ½ wave dipole up at 40 feet.
The hamateur radio CW mode RF signal levels received are based on 50 watts
and ½ wave dipole up at 40 feet.
The hamateur radio SSB RF mode signal levels received are based on 100 watts
and ½ wave dipole up at 40 feet.
The HF shortwave broadcast band AM Mode RF signal levels are based on
100,000 watts (100 kw) and a typical high gain VOA type curtain array
antenna.
Please keep in mind that this is a relatively simplified HF radio wave
propagation forecast, so as to keep it easily understandable and applicable
by the average radio enthusiast.
Globally HF radio wave propagation conditions are most evenly balanced
during the fall and spring equinoxes and most diametrically opposed during
the summer and winter solstices.
Conditions change daily, weekly, monthly, yearly and by decade, as the
sun rises and sets at different times and at different angles from the
ecliptic, as well as by radio wave frequency. This is due to changes in the
maximum usable frequency (MUF), lowest usable frequency (LUF) and F layer
critical frequency (FoF2). Also by propagation path.
The D and E layers also come into play through RF radio wave signal
absorption and refraction. And then there is sporadic E (Es) radio wave
propagation that can really throw a wrench into the gears so to speak.
Things like sporadic E (Es) radio wave propagation and lightning storm
static can impact HF radio wave propagation in an unpredictable manner and
mostly bad.
Ongoing solar, space and geomagnetic weather goings on also impact HF radio
wave propagation conditions in a negative manner.
Lower high frequency (80-30 meters) propagation conditions are impacted in a
negative manner not so much by variations in the maximum usable frequency
(MUF) along a particular propagation path and time but rather due to
geomagnetic elevated geomagnetic conditions (Kp-3-4), storms (Kp-5 &
greater) that increase signal absorption via the E layer (the altitude of
the radio aurora). Also increases in the lowest usable frequency (LUF) via D
layer RF signal absorption due to hard x-rays, galactic cosmic waves,
elevated background solar flux levels greater than B0 and energetic proton
flux levels at energies greater than 10 MeV (10+0).
Higher frequency (20-10 meters) propagation conditions are impacted in a
negative manner by variations in the maximum usable frequency (MUF) along a
particular propagation path and time due to the current sunspot number and
also due to elevated geomagnetic conditions (Kp-3-4), storms of Kp-5 &
greater. Also D layer RF signal absorption due to elevated (greater than B0)
background solar flux levels. Also to a lesser extent elevated proton flux
at energies greater than 10 MeV (10+0).
GENERAL GUIDELINES CONCERNING CORRELATION OF PROPAGATION INDICES TO ACTUAL
HF PROPAGATION CONDITIONS-
NOTE!!! The propagation indices "interpretations" are my personal
intellectual property. Therefore the radio wave propagation indices
interpretations contained herein is copyrighted © 1988-2018 by Thomas F.
Giella, W4HM, all rights reserved. Reproduction of information herein is
allowed without permission in advance as long as proper credit is given.
All 14 of the following indices have to occur as described below in order to
see the best global high frequency radio wave propagation possible,
something that happens rarely.
1.) Dropping geomagnetic field indices numbers are better, Kp of 0 best.
2.) A daily sunspot number of 150 or higher, 200 or higher best.
3.) A daily sunspot number of greater than 100 for routine stable formation
of the E Valley/F Layer ducting mechanism.
4.) Previous 24 hour Ap index under 10, fewer than 7 for several days
consecutively are best.
5.) Previous 3 hours Kp index fewer than 3 for mid latitude paths, fewer
than 2 for high latitude paths, 0 for several days consecutively is best.
6.) Energetic protons no greater than 10 MeV (10+0).
7.) Background x-ray flux levels greater than B1 for several days
consecutively, greater than C1 best.
8.) No current STRATWARM alert.
9.) Interplanetary magnetic field (IMF) Bz with a (positive number) sign,
indicates a lesser chance of high latitude path aurora
absorption/unpredictable refraction or scattering of medium frequency RF
signals, when the Kp is above 3.
10.) A -10 or better towards a positive number Dst index during the recovery
time after a geomagnetic storm, as related to the equatorial ring current. A
positive number is best.
Standard Disclaimer-
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, other U.S. government entities and educational
institutions, to produce this daily HF radio wave propagation
forecast. This data is gathered and made public by the U.S. Government using
taxpayer $$$ (including mine).
However this daily HF propagation forecast that I produce from the RAW
public domain data is my personal intellectual property. Therefore this
daily HF radio wave propagation forecast contained herein is copyrighted ©
1988-2018 by Thomas F. Giella, W4HM.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Also HF radio wave propagation forecasting is still an inexact
science and therefore also an art. The forecasts are not official but for
educational and hobby related purposes only and are subject to human error
and acts of God, therefore no guarantee or warranty implied.
Radio La Voz del Pueblo on air again today at 0445
PERU, 4920.8, Radio La Voz del Pueblo, Santiago de Chuco, 0445-0628, 30-07,
only carrier detected here in Reinante, but via remote SDR Kiwi Pardinho, near
Sao Paulo, 4920.77, clear signal with Peruvian songs between 0445 and 0453,
0453-0558, no audio, only carrier, at 0558 audio again, more very nice Peruvian
songs, no comments, no identification. SINPO via SDR Kiwi Pardinho. 35433.
Manuel Méndez
Lugo, Spain
Log in Reinante.
SWLDXBulgaria News, July 28-29
ALASKA HAARP WSPR 80m experimental transmissions planned on July 30-31 & August 1:
2300-2400 on 3592.6 AM mode (3 dB loss) because HAARP does not have an USB mode yet!
http://swldxbulgaria.blogspot.com/2018/07/haarp-wspr-80m-experimental.html
EGYPT Unscheduled transmission of Radio Cairo General Service on July 29:
0845-0915 on 9604.7 ABS 250 kW / 005 deg to EaEu in A-18 Russian 1900-2000
http://swldxbulgaria.blogspot.com/2018/07/unscheduled-transmission-of-radio-cairo_29.html
FRANCE(non) VOAmara Radio & VOIndependent Oromiya via TDF Issoudun, July 28-29:
BRB Voice of Amara Radio
1700-1800 on 15360 ISS 250 kW / 120 deg to EaAf Amharic Wed/Sat/Sun/Mon, very good
BRB Voice of Independent Oromiya
1600-1630 on 17850 ISS 250 kW / 130 deg to EaAf Afan Oromo Sun, fair to good, QRM
at same time 17855 NOB 200 kW / 290 deg to ENAm Spanish Radio Exterior de España:
http://swldxbulgaria.blogspot.com/2018/07/voamara-radio-voindependent-oromiya-via.html
GERMANY(non) Voice of The Andes & R.Xoriyo Ogaden via Moosbrunn/Issoudun June 28
1530-1630 on 13800 MOS 100 kW / 090 deg to CeAs Russian/Chechen Sat Voice of Andes
1600-1630 on 17630 ISS 500 kW / 130 deg to EaAf Somali Tue/Sat Radio Xoriyo Ogaden
http://swldxbulgaria.blogspot.com/2018/07/voice-of-andes-rxoriyo-ogaden-via.html
GERMANY(non) Reception of World of Radio via HLR on 9485 CUSB on July 29:
1031-1100 on 9485 GOH 001 kW / 230 deg to CeEu English Sun, weak/fair/good
from 1100 on 9485 GOH 001 kW / 230 deg to CeEu Spanish Sun Radio Tropicana
http://swldxbulgaria.blogspot.com/2018/07/reception-of-world-of-radio-via-hlr-on_29.html
GREECE Voice of Greece Sunday liturgy on 9420 kHz, July 29
0500-0700 on 9420 AVL 150 kW / 323 deg to WeEu Greek tx#03
Same time on 9935 AVL 100 kW / 285 deg via tx#1, no signal
http://swldxbulgaria.blogspot.com/2018/07/reception-of-voice-of-greece-sunday.html
ROMANIA(non) Reception of IRRS EGR/UN Radio via ROU RadioCom, July 29:
0930-1200 on 9510 SAF 100 kW / 300 deg to WeEu English Sun, good signal
http://swldxbulgaria.blogspot.com/2018/07/reception-of-irrs-egrun-radio-via-rou_29.html
SECRETLAND(non) Mighty KBC Radio & From the Isle of Music via Secretbrod, July 28-29
1500-1600 on 9400 SCB 100 kW / 306 deg to WeEu English Sat The Mighty KBC Radio, fair
1500-1600 on 9400 SCB 100 kW / 030 deg to EaEu En/Sp Sun From the Isle of Music, good
http://swldxbulgaria.blogspot.com/2018/07/mighty-kbc-radio-from-isle-of-music-via.html
SOUTH AFRICA Weak to fair signal of South African Radio League SARL, July 29:
0800-0801 on 17760 MEY 250 kW / 019 deg to EaAf 45 sec. open carrier / dead air
0801-0900 on 17760 MEY 250 kW / 019 deg to EaAf English Sun Amateur Radio Today
from 0830 on 17760 unknown kW / unknown to ???? - Chinese Digital Jammer co-ch:
http://swldxbulgaria.blogspot.com/2018/07/weak-to-fair-signal-of-south-african_29.html
TURKEY Voice of Turkey on very odd frequencies 13765.7/11795.7/9855.7 kHz July 29
0500-0655 on 13765.7 EMR 500 kW / 210 deg to CEAf Hausa/Swahili, not on air July 28
0830-0955 on 11795.7 EMR 500 kW / 105 deg to WeAs Persian, instead of 11795 July 28
1000-1025 on 9855.7 EMR 500 kW / 032 deg to CeAs Tatar, instead of 9855.0 July 28
1000-1055 on 9655.0 EMR 500 kW / 072 deg to CeAs Georg., instead of 9655.7 July 28
http://swldxbulgaria.blogspot.com/2018/07/voice-of-turkey-on-very-odd-freqs.html
USA Fair signal of WTWW-3 We Transmit World Wide on test 15810 kHz, July 28:
from 2056 on 15810 TWW 100 kW / 040 deg to ENAm English Scriptures For America
http://swldxbulgaria.blogspot.com/2018/07/fair-signal-of-wtww-3-on-test-15810-khz.html
USA WINB DRM tests effective from Aug.1 between 1100-1700 on 15670 kHz as follows:
http://swldxbulgaria.blogspot.com/2018/07/winb-drm-tests-from-aug1-between-1100.html
UZBEKISTAN(non) BVB & Radio Free North Korea on 15640 kHz Tashkent, July 29
1130-1200 on 15640 TAC 100 kW / 076 deg to EaAs English Sun, very good signal
1200-1201 on 15640 TAC 100 kW / 076 deg to EaAs Korean Radio Free North Korea
from 1201 on 15630 TAC 100 kW / 076 deg to EaAs Korean RFNK as scheduled A-18
http://swldxbulgaria.blogspot.com/2018/07/bvb-radio-free-north-korea-on-15640-khz.html
VATICAN Very good signal of Vatican Radio Liturgy in Arabic, July 29
0830-0950 on 15595 SMG 250 kW / 121 deg to EaAf Arabic liturgy 5th Sun
0830-0950 on 17590 SMG 250 kW / 116 deg to N/ME Arabic liturgy 5th Sun
http://swldxbulgaria.blogspot.com/2018/07/very-good-signal-of-vatican-radio.html
--
73! Ivo Ivanov
More information on the shortwave listening hobby,
please visit to http://swldxbulgaria.blogspot.com
QTH-1: Patreshko, Bulgaria
Receiver: Afedri SDR
Software: SDR-Console v2.3(using remote connection)
Antennas: various Inverted V and beverage antennas.
QTH-2: Sofia OK2, Bulgaria
Receiver: Sony ICF-2001D
Antenna: 30 m. long wire
2300-2400 on 3592.6 AM mode (3 dB loss) because HAARP does not have an USB mode yet!
http://swldxbulgaria.blogspot.com/2018/07/haarp-wspr-80m-experimental.html
EGYPT Unscheduled transmission of Radio Cairo General Service on July 29:
0845-0915 on 9604.7 ABS 250 kW / 005 deg to EaEu in A-18 Russian 1900-2000
http://swldxbulgaria.blogspot.com/2018/07/unscheduled-transmission-of-radio-cairo_29.html
FRANCE(non) VOAmara Radio & VOIndependent Oromiya via TDF Issoudun, July 28-29:
BRB Voice of Amara Radio
1700-1800 on 15360 ISS 250 kW / 120 deg to EaAf Amharic Wed/Sat/Sun/Mon, very good
BRB Voice of Independent Oromiya
1600-1630 on 17850 ISS 250 kW / 130 deg to EaAf Afan Oromo Sun, fair to good, QRM
at same time 17855 NOB 200 kW / 290 deg to ENAm Spanish Radio Exterior de España:
http://swldxbulgaria.blogspot.com/2018/07/voamara-radio-voindependent-oromiya-via.html
GERMANY(non) Voice of The Andes & R.Xoriyo Ogaden via Moosbrunn/Issoudun June 28
1530-1630 on 13800 MOS 100 kW / 090 deg to CeAs Russian/Chechen Sat Voice of Andes
1600-1630 on 17630 ISS 500 kW / 130 deg to EaAf Somali Tue/Sat Radio Xoriyo Ogaden
http://swldxbulgaria.blogspot.com/2018/07/voice-of-andes-rxoriyo-ogaden-via.html
GERMANY(non) Reception of World of Radio via HLR on 9485 CUSB on July 29:
1031-1100 on 9485 GOH 001 kW / 230 deg to CeEu English Sun, weak/fair/good
from 1100 on 9485 GOH 001 kW / 230 deg to CeEu Spanish Sun Radio Tropicana
http://swldxbulgaria.blogspot.com/2018/07/reception-of-world-of-radio-via-hlr-on_29.html
GREECE Voice of Greece Sunday liturgy on 9420 kHz, July 29
0500-0700 on 9420 AVL 150 kW / 323 deg to WeEu Greek tx#03
Same time on 9935 AVL 100 kW / 285 deg via tx#1, no signal
http://swldxbulgaria.blogspot.com/2018/07/reception-of-voice-of-greece-sunday.html
ROMANIA(non) Reception of IRRS EGR/UN Radio via ROU RadioCom, July 29:
0930-1200 on 9510 SAF 100 kW / 300 deg to WeEu English Sun, good signal
http://swldxbulgaria.blogspot.com/2018/07/reception-of-irrs-egrun-radio-via-rou_29.html
SECRETLAND(non) Mighty KBC Radio & From the Isle of Music via Secretbrod, July 28-29
1500-1600 on 9400 SCB 100 kW / 306 deg to WeEu English Sat The Mighty KBC Radio, fair
1500-1600 on 9400 SCB 100 kW / 030 deg to EaEu En/Sp Sun From the Isle of Music, good
http://swldxbulgaria.blogspot.com/2018/07/mighty-kbc-radio-from-isle-of-music-via.html
SOUTH AFRICA Weak to fair signal of South African Radio League SARL, July 29:
0800-0801 on 17760 MEY 250 kW / 019 deg to EaAf 45 sec. open carrier / dead air
0801-0900 on 17760 MEY 250 kW / 019 deg to EaAf English Sun Amateur Radio Today
from 0830 on 17760 unknown kW / unknown to ???? - Chinese Digital Jammer co-ch:
http://swldxbulgaria.blogspot.com/2018/07/weak-to-fair-signal-of-south-african_29.html
TURKEY Voice of Turkey on very odd frequencies 13765.7/11795.7/9855.7 kHz July 29
0500-0655 on 13765.7 EMR 500 kW / 210 deg to CEAf Hausa/Swahili, not on air July 28
0830-0955 on 11795.7 EMR 500 kW / 105 deg to WeAs Persian, instead of 11795 July 28
1000-1025 on 9855.7 EMR 500 kW / 032 deg to CeAs Tatar, instead of 9855.0 July 28
1000-1055 on 9655.0 EMR 500 kW / 072 deg to CeAs Georg., instead of 9655.7 July 28
http://swldxbulgaria.blogspot.com/2018/07/voice-of-turkey-on-very-odd-freqs.html
USA Fair signal of WTWW-3 We Transmit World Wide on test 15810 kHz, July 28:
from 2056 on 15810 TWW 100 kW / 040 deg to ENAm English Scriptures For America
http://swldxbulgaria.blogspot.com/2018/07/fair-signal-of-wtww-3-on-test-15810-khz.html
USA WINB DRM tests effective from Aug.1 between 1100-1700 on 15670 kHz as follows:
http://swldxbulgaria.blogspot.com/2018/07/winb-drm-tests-from-aug1-between-1100.html
UZBEKISTAN(non) BVB & Radio Free North Korea on 15640 kHz Tashkent, July 29
1130-1200 on 15640 TAC 100 kW / 076 deg to EaAs English Sun, very good signal
1200-1201 on 15640 TAC 100 kW / 076 deg to EaAs Korean Radio Free North Korea
from 1201 on 15630 TAC 100 kW / 076 deg to EaAs Korean RFNK as scheduled A-18
http://swldxbulgaria.blogspot.com/2018/07/bvb-radio-free-north-korea-on-15640-khz.html
VATICAN Very good signal of Vatican Radio Liturgy in Arabic, July 29
0830-0950 on 15595 SMG 250 kW / 121 deg to EaAf Arabic liturgy 5th Sun
0830-0950 on 17590 SMG 250 kW / 116 deg to N/ME Arabic liturgy 5th Sun
http://swldxbulgaria.blogspot.com/2018/07/very-good-signal-of-vatican-radio.html
--
73! Ivo Ivanov
More information on the shortwave listening hobby,
please visit to http://swldxbulgaria.blogspot.com
QTH-1: Patreshko, Bulgaria
Receiver: Afedri SDR
Software: SDR-Console v2.3(using remote connection)
Antennas: various Inverted V and beverage antennas.
QTH-2: Sofia OK2, Bulgaria
Receiver: Sony ICF-2001D
Antenna: 30 m. long wire
Radio Yura, Bolivia, reactivated on 5935/5936
** BOLIVIA. R. YURA. Julio 27. 1136-1146 UT. Mujer y hombre dan avisos en español y quechua. SINPO: 45333 (Claudio Galaz, Receptor: TECSUN PL 660, ANTENA: Hilo largo de 30 metros + balun 9:1+ tierra; Lugar de escucha: Ovalle, IV Región, Chile) Hard-Core-DX mailing list via DXLD)
WTFK? Presumably around 5935 per reactivation tho not reported in months; or ex-4717v? (Glenn Hauser, DX LISTENING DIGEST)
Corregido: BOLIVIA. 5936. R. YURA. . . (Claudio Galaz, HCDX via DXLD)
Whew, that will have a big problem in North America with WWCR on 5935; but absolutely no QRM in Chile. Listen for a het at least and/or precisely measure its frequency. In evening, WWCR supposed to start 5935 at 0000, but I recently found it absent almost to 0200.
The last very indefinite report about Yura was in DXLD 17-47:
The rest of this info is from LAST YEAR 2017:
``BOLIVIA. 5935.0, Nov 11 at 2253, JBA carrier a few minutes before
WWCR blast, again raising the question whether it`s R. Yura, no
definite logs lately, or just Tibet (Glenn Hauser, OK, DX LISTENING
DIGEST) Still waiting for anyone to reconfirm whether Yura on or not``
And also in every issue before that back thru 17-39, starting with this item I posted September 25, 2017:
``Radio Yura, Bolivia back on new 5935
** BOLIVIA. 5935, Emisora Bolviana desconocida. Estimados: Existe una emisora en 5935 proveniente de Bolivia. Identificable por la hora dada y el acento. Sin embargo, no se identifica. Hace un par de semanas, un diexista argentino la captó:
https://youtu.be/-g_dlnnBvkg
He aquí la mia:
https://youtu.be/JHhmBXpywKU
Saludos cordiales (Claudio Galaz, Ovalle, IV Región, Chile, Hard-Core-DX mailing list via DXLD)
Time? The hours when WWCR is *not* on 5935 are: 12-24 UT (gh)
Re: 5935 kHz, Emisora Boliviana desconocida.
Hola, La emisora reportada por el amigo Claudio, es Radio Yura, La Voz de los Ayllus. Anoche llegaba a mi QTH compartiendo canal con University Network desde USA; así decidi probar suerte con un SDR localizado en Brasil y se escuchaba un poco mejor, con largas tandas de música folclórica y dando la hora una que otra vez en voz pregrabada. No hubo locución y antes de salir del aire a las 0212 UT "Hasta este momento, Radio Yura, la Voz de los Ayllus ha llegado al aire en sus emisiones correspondientes a esta jornada; esperamos que todos los programas que hemos difundido hayan estado al completo agrado de todos ustedes..." Mismo cierre pregrabado que compare con un audio de hace un par de años. Reactivacion en nueva frecuencia. Buenos DX (Rafael Rodríguez R., Bogotá D.C. - COLOMBIA, Sept 21, condiglista yg via DXLD)
Confirmada es R. Yura, reactivada en frecuencia de 5936 kilociclos como dice el audio añadido. Saludos! (Claudio Galaz, Chile, ibid.)
Esta noche de viernes con buena selección musical; Pop y rock en español e identificándose con mayor regularidad, y curioso que anuncie 5936 kHz. Buenos DX (Rafael R., 0156 UT Sept 23, ibid.)
Desde Buenos Aires la pude escuchar hoy con muy buena recepción sobre las 11 UT. 73 (Arnaldo Slaen, Sept 23, ibid.)
5935. R. YURA [Tentativa] Sept. 21. 0000-0213 UT. Radionovela. Luego dice: "Son las 8 de la noche con 2 minutos" para posteriormente seguir con la trama. A las 0010, espacio musical de cumbias, mix folclórico y de vallenatos. ID a las 0111 con baja modulación, solamente entendible la frecuencia. Luego continuación del espacio musical con avisos de la hora local. SINPO: 34343. Desde las 0008 SINPO: 44343. Desde las 0035, SINPO: 45333 con fading. Desde las 0109 SINPO: 44433. Audio:
https://youtu.be/JHhmBXpywKU
(Claudio Galaz; RX: TECSUN PL 660; ANT: Hilo de 40 metros de largo; QTH: Ovalle, IV Región, Chile, ibid.)
Until a couple of years ago it was on 4717v- to the low side and audible here. In case it really be on 5936, we can at least listen for a het upon DGS & PMS. From previous behavior, chances are it is not right smack dab on 5935.000 (Glenn Hauser, OK, DX LISTENING DIGEST)``
Glenn Hauser logs July 28-29, 2018
** ALBANIA [non]. 9395, UT Sunday July 29 at 0230, relay of R. Tirana is still AWOL; after WRMI ID, immediately goes to World Music fill, that familiar but unidentified Alpine(?) tune. I have still not received a reply from Christian Milling of shortwaveservice in Germany who 7 months ago fixed the same problem, since Tirana had changed its audio URL without notice (Glenn Hauser, OK, DX LISTENING DIGEST)
** CUBA. 5990, July 29 at 0107, S9+45 of dead air, obviously CRI relay failing to turn off by 0100; stronger even than neighbor 6000 RHC itself, a mere S9+30/35. Something`s always wrong at RadioCuba. CRI registers 5990 with HFCC as 23-01, 250 kW, 0 degrees = non-direxional? (Glenn Hauser, OK, DX LISTENING DIGEST)
** CUBA. 6100, July 29 at 0557, JBA carrier, presumably RHC really ailing, as nothing else is scheduled here in HFCC --- except imaginary 24-hour broadcasts: 5 kW Irkutsk, Russia; and 10 kW Hwa, KBS Korea South. Contrarily, Aoki/NDXC says it`s KCBS Pyongyang, NORTH Korea; but neither would propagate this early. Other RHC English frequencies with music are normal levels, 6165 and 6000, far better modulated on 6060. Something`s always wrong at RHC (Glenn Hauser, OK, DX LISTENING DIGEST)
** FRANCE. 9790, July 29 at 0548, S5-S7 of big hum/buzz, atop trace of talk in unknown language. I bet it`s TDF Issoudun --- yes, HFCC has 500 kW RFI here in French at 04-05 to 140 degrees, 05-06 at 165 degrees, and 06-07 at 200 degrees (BTW, the first hour collides with CRI via Cuba in Cantonese!). How can MBR/TDF allow this totally dysfunxional transmitter to remain in use for months and months? Also affecting various other frequencies and transmissions thruout the day. No one notices and/or cares (Glenn Hauser, OK, DX LISTENING DIGEST)
** NIGERIA. 7255-, July 29 at 0610, VON is AWOL again like 24 hours earlier. This also applies to other dayparts, as Richard Langley, NB reported to the WOR iog on July 27:
``Voice of Nigeria had trouble keeping the transmitter on 7255 kHz on the air today in AM mode. But then, at 1853 UT, a strong DRM signal came up on the frequency. Was this VoN or CRI testing? The DRM signal went off at about 1859.5 and immediately a strong carrier could be seen on the frequency and then the CRI IS began in advance of the usual Turkish broadcast in AM mode at 1900. As soon as the DRM signal appeared on 7255 kHz, I checked 15120 kHz and there was no signal there. All of this using the U. Twente SDR receiver``
And on July 13: ``As monitored using the U. Twente SDR receiver,
Voice of Nigeria's English broadcast on 7255 kHz (measured as 7254.931
kHz) beginning at 1800 UT had problems staying on the air. Off between
1807 and 1817 and between 1825 and 1851 UT. There was also co-channel
QRM from (presumably) PBS Xizang until 1805 and it was completely
obliterated once CRI's carrier came on a couple of minutes before 1900
for the broadcast in Turkish. When it was audible, Voice of Nigeria's
signal was only so-so and it was difficult to make out the accented
English at times``
Alan Roe, Teddington UK, reported 25 July: ``V of Nigeria heard back on air on 15120 in DRM mode with their English programme from 1820 tune-in on 25 July. SNR of 18+dB and good lock. They have been missing on this frequency for some time.``
Langley replied to that: ``Presumably parallel to 7255 kHz in AM mode. I have 7255 kHz recorded using the U. Twente SDR receiver with a fair signal but with a lot of QRN initially from, I imagine, local thunderstorms`` (Glenn Hauser, OK, DX LISTENING DIGEST)
** SOUTH CAROLINA [non]. 9330v WBCQ // 7570 WRMI, July 29 at 0048, Brother HyStairical with same severely degraded audio feed, strange ringing sounds making his horrible voice even more unlistenable.
This correlates with Kenneth Vito Zichi`s comment in the Michigan ARE Tipsheet, for 9330.1-AM, WBCQ, at 0249-0300 23/July: ``This was REALLY poor audio -- it sounded like he was using string and a tin can, or a REALLY poor telephone audio at most. Most of the audio was between 0-1500 Hz. Odd`` (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A [and non]. WORLD OF RADIO 1940 monitoring: confirmed UT Sunday July 29 at 0343 on WA0RCR, 1860-AM, Missouri, about 13 minutes into show so started late circa 0330. Good signal but hard to copy vs heavy storm noise level approaching us from the NW. Next:
Sun 2330 WBCQ 9330v to WSW [maybe]
Mon 0130.5 WRMI 5850 to NW, 7780 to NE
Mon 0300v WBCQ 5130v Area 51 to WSW
Mon 0330 WRMI 9955 to SSE
Mon 0400 WRMI webcast only, non-direxional
Mon 2330 WBCQ 9330v to WSW [maybe]
Tue 0030 WRMI 7730 to WNW
Tue 2030 WRMI 7780 to NE, 5950 to WNW [or #1941?]
Tue 2130 WRMI 5950 to WNW [or #1941?]
Full schedule for WOR on all outlets, not just SW; podcast linx:
http://www.worldofradio.com/radioskd.html
(Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 11580, July 28 at 2133, WRMI Saturday-only activation with `SW Radiogram` beepery. The current webpage http://swradiogram.net/ for July 27-30 still does not include this airing on its own schedule, nor do I see any mention of anyone having heard/seen it last week, as I first reported. Unfortunately, I missed checking what was on during the first semihour from 2100; another DX program?? Did anyone hear it? (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 5130.12, July 29 at 0057, WBCQ is too weak to listen to, other than measure the JBA carrier here, rather than circa 5129.83. Sometimes it`s 5130 plus, but usually 5130 minus. So are there two different transmitters, or one sometimes tuned up, sometimes down? I don`t find it varying in between (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 15809.9, July 29 at 0052, WTWW-3 is S6 and the OSOB with SFAW // 9475 WTWW-1, rather than // 5085 WTWW-2 with music.
5085, UT Sunday July 29 at 0103, WTWW-2 starting `Theatre Organ in the Ozarx`, and not // 15810- this week. Sounds like a repeat with Bob Heil tribute to his mentor Stan Kann --- as correctly spelt now tnx to research by Alan Roe; see https://en.wikipedia.org/wiki/Stan_Kann --- with some of the same comments, but I *think* different music is being played than last week.
5085, UT Sunday July 29 at 0556, VG WTWW-2 still with that odd weekly talkshow, and a trace of a JBA carrier on 15809.9, maybe duplicating it if not SFAW. 0600 music fill; 0605 Dave Fluee says Stan[ton] Friedman is staying for another hour, apparently about UFOs, ``here on Southern Talk in the Midnight``; 0607 really resuming, mentioning three stations: KYIH?, KCAA and WTWW. Own website, really
http://www.tennhills-productions.com/
says new affiliate is KYAH, 540 in Utah. NRC AM Log shows it`s in Delta, 1000 day, 13 watts night, as ``Truth Radio`` and ``Yah Radio`` with addresses in Kanosh 84637, and Portsmouth RI! (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 4840, UT Sunday July 29 after 0100, WWCR is still running `The Talking Machine Show` now judging from lo-fi ancient music recording, after having deleted it from Saturday 1700 on 12160. 3215, another WWCR is also still playing `Martha Garvin`s Musical Memories` at very same time; to compete with The Mighty KBC, 9925, but not a single 43 mb pirate to be heard this Saturday evening (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 9265, July 29 at 1328, WINB on early Sundays, music but carrier is heavily wobbling, obvious with BFO, not so obvious in AM tuning; someone, kick the transmitter? (Glenn Hauser, OK, DX LISTENING DIGEST)
This report despatched at 1946 UT July 29
domenica 29 luglio 2018
Radio Northern Star testing now
Radio Northern Star testing right now on LLE-2 1314 KHz 228 meters MW with 1kW and LKB3 93.8 Mhz with 50 watts. This in //1611, 5895, WiFi, apps, web etc. Reports to 1000@northernstar.no
HFCC Announces Passing of Founder Oldrich Cip
Oldrich Cip, founder and Vice Chairman of the High Frequency Coordination Conference, known as the HFCC, passed away on 27 July following a sudden illness.
Oldrich was involved in radio since he was a child -- first as an amateur radio hobbyist and later as a staff member of Czechoslovak and then Czech Radio in the international broadcasting departments. A college graduate in the field of Humanities, he spent most of his working life as a frequency manager and schedule planner. For a number of years he hosted a DX program on Radio Prague under the pen name Peter Skala.
After the end of the Cold War, he believed that broadcasters from both sides of the conflict should come together and develop a new system of planning and coordination for shortwave broadcasting. This led to the establishment of the HFCC in 1991. Oldrich was Chairman of the HFCC until 2015. Since then, he was a Vice Chairman of the group.
Oldrich lived in Prague, although he frequently spent time in his country house, where he enjoyed woodworking, guitar and country music, vintage graphics, photography and time with his family. His son Vladislav said he spent his last day there: “He enjoyed a quiet evening in the country house, with our families, all four grandchildren around, no symptoms of anything bad coming. All of a sudden, he suffered probably a heart attack or stroke. An ambulance arrived immediately but he died a few hours later.”
Oldrich was married with two adult sons, Oldrich Jr. and Vladislav. Vladislav is the HFCC Secretary who manages the day-to-day operations of the organization.
From 1953 until 1997 Oldrich was an employee of Czechoslovak and later Czech Radio in Prague. He worked as a technical consultant for Czech Radio from 1998 to 2010. He specialized in planning schedules and frequencies, international coordination and distribution of shortwave radio programs for foreign countries.
Beginning in 1959 and for more than 25 years, Oldrich produced a weekly English-language program “Radio Prague Calling All Radio Hobbyists,” using the nom de plume Peter Skala. In the program, he answered questions from shortwave listeners in many countries and covered a variety of scientific and other topics from the radio industry.
During the Soviet occupation of Czechoslovakia in 1968, Oldrich used his technical expertise to aid the “free Czechoslovak Radio,” putting himself in danger in an effort to provide factual news and information about the events taking place. Thanks to the large number of smaller facilities of Czechoslovak Radio scattered all over Prague and complicated infrastructure that connected them, they were able to continue broadcasting for quite some time.
In the period of reforms around the year 1968, he established secret contacts with his colleagues from Western radio stations. He re-established the contacts after the fall of communism and started an initiative to eliminate interference on shortwave. He became the Chairman of the HFCC, which has continued to meet twice each year in different parts of the world for shortwave stations to coordinate their frequency schedules for the coming broadcast season, thus eliminating interference before each season begins. The principles of international coordination were incorporated into the ITU’s International Radio Regulations during the 1997 World Radio Conference.
Oldrich was also an adviser to the Government of the Czechoslovak Republic in the preparation of the first Radio and Television Broadcasting Act after 1990, as well as a member of several EBU and ITU radiocommunication working groups. At the HFCC, he spearheaded the International Radio for Disaster Relief project whereby shortwave stations have allocated specific frequencies in each band for the transmission of emergency information in the event of natural disasters around the world.
Jeff White, Oldrich’s successor as HFCC Chairman, said: “The shortwave broadcasting and listening communities have lost one of our most important proponents. The contributions of Oldrich over the years are simply unequalled. He was a humble man, but people in this industry realized the importance of his work. And he has left us a lasting legacy -- an organization which has largely eliminated interference on the shortwave bands, and it has enabled stations to use less power to reach their target areas with a good signal. For that, he will always be remembered.”
For more information, contact Jeff White, HFCC Chairman, at jeff@wrmi.net
(Jeff White, July 29, DX LISTENING DIGEST)
AWR Wavewscan & Unique Radio testing on WINB DRM
AWR's Wavescan testing in DRM starting Aug 3rd - Mondays and Fridays 1630-1700 UTC on 15670 kHz. @SWWINB will QSL, especially looking for audio files (you can record with Dream) of reception, reports to winb40th@yahoo.com
----------
Unique Radio will be testing on WINB DRM - 1100-1200 UTC 15670 kHz August 3, 10, 17, 24, and 31st. Directed to Western Europe and North Africa. Will QSL for audio reports sent to winb40th@yahoo.com. Dream receiver has a button to record a .wav file.
(Mike Terry via WOR io group)
Ascolti AM Treviso 29 luglio
6070 29/7 900 Radio DARC, AUT-Moosbrunn Px Dx D 44544
11955 29/7 903 AWR Europe, Nauen Px "Obiettivo DX" It 55555
15160 29/7 959 KBS World Radio, Kimjae Mx Info ID K 35543
15450 29/7 1000 AWR KSDA Guam, Agat Info ID E Px rel. M 35544
15580 29/7 1006 All India Radio GOS, Panaji (Goa) Px E 34533
17665 29/7 1007 AWR KSDA Guam, Agat Px rel. M 35543
17850 29/7 1009 Radio Thailand, Udon Thani Mx Px T 35533
73 da N. Marabello
QTH Treviso, Italia
RX: SONY ICF SW7600G
Ant.: esterna VHF orizzontale 230°
11955 29/7 903 AWR Europe, Nauen Px "Obiettivo DX" It 55555
15160 29/7 959 KBS World Radio, Kimjae Mx Info ID K 35543
15450 29/7 1000 AWR KSDA Guam, Agat Info ID E Px rel. M 35544
15580 29/7 1006 All India Radio GOS, Panaji (Goa) Px E 34533
17665 29/7 1007 AWR KSDA Guam, Agat Px rel. M 35543
17850 29/7 1009 Radio Thailand, Udon Thani Mx Px T 35533
73 da N. Marabello
QTH Treviso, Italia
RX: SONY ICF SW7600G
Ant.: esterna VHF orizzontale 230°
Agenda DX 29/07/2018
ANNIVERSARIO EMITTENTI
Radio Maracay, Venezuela 930 Khz (1939)
Radio Simpatia, Venezuela 1410 Khz (1981)
Radio Nacional de Venezuela 9540 Khz (1936)
CKCK, Regina, Canada 620 Khz (1922)
BFBS, (in FM) Germania (1945)
Radio Maracay, Venezuela 930 Khz (1939)
Radio Simpatia, Venezuela 1410 Khz (1981)
Radio Nacional de Venezuela 9540 Khz (1936)
CKCK, Regina, Canada 620 Khz (1922)
BFBS, (in FM) Germania (1945)
Propagation News – 29 July 2018
The solar flux index hit 66 on Thursday 26th, which is probably the lowest it
will go this sunspot minimum. At the time of writing the visible solar disk has
been devoid of sunspots since 27 June, apart from the tiniest fleck that sent
the sunspot number to 11 for one day on 12 July. We can probably expect more of
the same through 2018 as we make our way through this low part of the current
solar cycle.
Geomagnetic conditions were a little unsettled this week due to
coronal hole activity, with the K-index hitting four at times. Next week NOAA
has the solar flux index pegged at 68 with reasonably-settled geomagnetic
conditions.
This weekend is the RSGB Islands on the Air Contest. For
those of you who read GB2RS online or catch it on Saturday, expect 40m and 20m
to be the money bands, with 7MHz coming into its own after dark. Fifteen metres
and 10 metres may struggle to open, other than through sporadic E openings,
which are now becoming less prevalent as we move towards August.
Started
in 1993, IOTA is now a major international event, attracting thousands of
participants from all over the world. Radio amateurs will be travelling to
islands around the globe, and putting them on the air, so it is an ideal
opportunity to make some contacts.
VHF and up:
The weather is
breaking with some heavy thundery showers in attendance this weekend, so there’s
the prospect of some rain scatter for the microwave bands. This will only be
temporary as fine weather returns from Tuesday. That also means that although we
are having a pause from the almost daily tropo weather due to the recent high
pressure, it will return from mid-week to give the prospect of some VHF DX paths
across the North Sea to the Baltic and Scandinavia, or to the south across
Biscay to Spain and western France. Sea paths are often the best under these
summer tropo conditions.
The sporadic E conditions have been a bit
variable recently, but don’t worry about the change of month, as sporadic E can
go right through to early September in a good year. However, we do really need a
more changeable pattern of weather to bring us the useful jet streams, which can
be good for sporadic E. There are some jet streams about, so you maximise the
potential for openings by listening for the beacons and looking at the clusters.
The peak times are typically late morning and late afternoon and early
evening.
It is only two weeks to go until the Perseids meteor shower, the
biggest of the year, so check out your equipment and be ready for
some—literal—fireworks on the 12th.
The moon is past apogee again and
declination goes positive on Thursday so EME conditions will pick up as the week
progresses
Listen out for HAARP WSPR 80m transmissions
Chris Fallen KL3WX will be using 80 kilowatts into the massive HAARP antenna array in Alaska for WSPR experiments in the 80m band from July 30 to August 1
Chris KL3WX tweeted:
WSPR experiments are tentatively planned to occur between 2300 and 2400 hours UTC on July 30, 31, and Aug 1. Most broadcasts will be at the 80m dial frequency default in WSJT, that is 3.5926 MHz with AM (3 dB loss) because HAARP does not have an upper side band (USB) mode yet!
For updates follow Chris KL3WX on Twitter at
https://twitter.com/ctfallen
University of Alaska Fairbanks HAARP
https://twitter.com/uafhaarp
HAARP FAQ
https://www.gi.alaska.edu/haarp/faq
Glenn Hauser logs July 27-28, 2018
** CUBA. 15140, July 27 at 1747, once again I check RHC at this hour and find frequency on despite schedule, // 11760 Spanish; something`s always wrong? at RHC. 1754 startled to hear RHC ID in Esperanto --- listening closely, only amid a feature in Spanish about Esperantism. A congreso pending?
15140, July 28 at 1706, once again 15140 is running RHC Spanish, S9-S7 but squealy, unlike // 11760 (Glenn Hauser, OK, DX LISTENING DIGEST)
** CUBA. 13700 & 13740, July 28 at 1347, RHC AWOL from both 22mb frequencies, not due to propagation, since 15230 is audible, the SSOB and almost the OSOB on 19m. Something`s always wrong at RHC (Glenn Hauser, OK, DX LISTENING DIGEST)
** GUATEMALA [non]. Okie Catholix are all excited because one of their own, undoubtedly a good man, is on track to sainthood, which ordinary Protestants cannot achieve. I normally would not cover such extraneous activities, but this is relevant because Blessèd Stanley Rother founded and ran the almost-SW station many of us heard, La Voz de Atitlán, 2390 kHz. I also visited the vacated building a few years after it had ceased to exist. Here`s the latest in a long series of items from our local paper; his backstory is told over and over:
OKLAHOMA CATHOLICS PREPARE TO CELEBRATE FIRST FEAST DAY OF BLESSED STANLEY ROTHER --- James Neal | Enid News & Eagle Jul 26, 2018
OKARCHE, Okla. — Catholics across Oklahoma, Arkansas and Guatemala will celebrate Saturday [July 28] the first feast day for Stanley Rother, a priest from Okarche who was killed in 1981 while serving as a missionary in Guatemala.
Last September, Rother became the first U.S.-born priest and first U.S. martyr to be beatified — a crucial step toward canonization as a saint, and a status in Catholicism honored with a feast day and the title "blessed."
"A feast day is a day designated by the Catholic Church to honor saints and blesseds," according to a press release from the Catholic Archdiocese of Oklahoma City. "The Church assigns one date out of the year for each saint, usually on the date of death. The saints are remembered on their feast days with special mention, prayers and sometimes with special scripture readings."
In honor of Rother's feast day, and his roots in Okarche, the Most Rev. Paul S. Coakley, Archbishop of Oklahoma City, will lead Mass at 5 p.m. Saturday [July 28, 2018] at Holy Trinity Catholic Church, 211 Missouri in Okarche. Members of the Rother family will be in attendance. . . [more]
https://www.enidnews.com/community/oklahoma-catholics-prepare-to-celebrate-first-feast-day-of-blessed/article_70efcf60-8a81-5004-8c27-ee322681569d.html
(via gh, DXLD)
No doubt there will be more coverage of the event. KFOR-TV has already run many stories about him:
https://kfor.com/?s=rother
The search items are not dated, so which is the latest? This one from July 26, with audio-video:
https://kfor.com/2018/07/26/plans-in-the-works-for-multi-million-dollar-shrine-church-to-honor-blessed-stanley-rother/
I seriously doubt that Guatemala`s only SW station today, Radio Verdad, will take any notice of this, since they are evangelical, not Catholic; yet Christian & Abrahamist (Glenn Hauser, OK, DX LISTENING DIGEST)
** NIGERIA. 7255-, July 28 at 0610, no signal from VON Hausa. Usually on, but sporadically missing (Glenn Hauser, OK, DX LISTENING DIGEST)
** OKLAHOMA. 1000, July 28 at 0300 UT, on road back from OKC visit, at Okarche junxion of US81 and State Hwy 3, surprised to find KTOK OKC very weak, no match for the CCI, but can make out Dodgers baseball, not OKC, but LA, including local LA PSA concerning ``H204LA`` about water supply. Meanwhile, 930 WKY OKC is loud and clear, or rather clear but dead air during ESPND break, soon resuming.
What`s with KTOK? The answer from its night direxional plot:
https://transition.fcc.gov/Bureaus/MB/Databases/AM_DA_patterns/1534041-120192.pdf
which is dated 21 Mar 2018 --- as if it changes over time? Hardly, but most FCC AM Query plots display recent dates on them --- With two tight major lobes, one NNW which explains why we hear it well in Enid, and the other to the SE. Numerically for the fourth quadrant, in theoretical, and standard field strengths:
270 12.19 28.34
275 15.26 29.94
280 16.36 30.57
285 4.68 25.76
290 32.95 42.85
295 47.06 55.51
300 29.74 40.19
305 18.08 31.62
310 67.28 75.03
315 63.38 71.19
320 53.51 61.62
325 317.80 334.64
330 711.90 747.92
335 1161.24 1219.56
340 1557.18 1635.24
345 1798.37 1888.46
350 1829.59 1921.24
355 1658.97 1742.10
I would say Okarche is roughly NW = 315 degrees from site in south OKC. KTOK day and night power is the odd figure of 5.8 kW. Poor Okarche, home of proto-Saint Stanley Rother, can`t listen to the mostly far-right talkshows on KTOK. But pity the poorer would-be listeners at 285!
Day pattern is not so squeezed, but still with a notch toward the NW, as if faraway KOMO Seattle still need to be protected.
https://transition.fcc.gov/Bureaus/MB/Databases/AM_DA_patterns/1534041-120191.pdf
Here are daytime figures matching minimum signals in degree direxions:
305 529.02 556.05
310 489.69 514.80
315 505.66 531.54
While the maxima are:
135 1308.21 1373.85
345 1314.78 1380.75
BTW, three undefined sexions of bumpy US 81 between Okarche and Enid, much of it finally under repair, according to signage, are named as The President George W Bush Highway; the President George H W Bush Highway; and The President Ronald Reagan Highway (not in order). They are SO honored!!! Now, where, o where, are the Presidents Jimmy Carter, Bill Clinton, Barack Obama, Hillary Clinton Highways? Not even a President Donald Drumpf Highway; yet (Glenn Hauser, Enid OK, DX LISTENING DIGEST)
** OKLAHOMA [non]. See GUATEMALA [non]
** U S A. WORLD OF RADIO 1940 monitoring: missed checking Friday July 28 at 2330 on WBCQ 9330v, as I was viewing the excellent docu-movie about Mr Rogers, ``Won`t You Be My Neighbor``, in OKC. Patience; will eventually be on PBS `Independent Lens`.
Ivo Ivanov, Bulgaria, confirms:
GERMANY, Reception of World of Radio via HLR on 6190 CUSB, July 28
http://swldxbulgaria.blogspot.com/2018/07/reception-of-world-of-radio-via-hlr-on_28.html
0631-0700 6190 GOH 001 kW / 230 deg CeEu English Sat, fair signal
My quick check amid next HLR broadcast, Saturday July 28 at 1444, via UTwente SDR, found nearly 100% readable, bothered only by some lightning crashes.. Next:
Sat 2130 WBCQ 9330v to WSW [maybe, or 2330?] [axuallly, never heard
any more at 2130, 2230 or 2330, but this was the original
timing shift for Saturdays only]
Sun 0310v WA0RCR 1860-AM ND
Sun 1030 HLR 9485-CUSB to WSW
Sun 2330 WBCQ 9330v to WSW [maybe]
Mon 0130.5 WRMI 5850 to NW, 7780 to NE
Mon 0300v WBCQ 5130v Area 51 to WSW
Mon 0330 WRMI 9955 to SSE
Mon 0400 WRMI webcast only, non-direxional
Mon 2330 WBCQ 9330v to WSW [maybe]
Tue 0030 WRMI 7730 to WNW
Tue 2030 WRMI 7780 to NE, 5950 to WNW [or #1941?]
Tue 2130 WRMI 5950 to WNW [or #1941?]
Full schedule for WOR on all outlets, not just SW; podcast linx:
http://www.worldofradio.com/radioskd.html
(Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 9955, UT Saturday July 28 at 0320, WRMI with World Music fill instead of `Moments in Bible Prophecy` as scheduled 0315-0330 UT Tue-Sat. 0329 Spanish ID by Dino; 0330 resumes another preacher in English, `Upward Look` as sked UT Sat only.
9955, July 28 at 1411, WRMI extended broadcast Saturday only with Blalock the Blaster. How can anyone stand to listen to him? (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. Tonight`s `AWWW` on WBCQ, UT Saturday July 28 from 0000 --- I don`t hear any of it, since I`m at an event in OKC, but the ever-reliable John Carver files his report, in keeping without our custom altho not a gh log at all:
``Show started on time this evening. Poor signal on seven four ninety so listening to fifty-one thirty this evening. Allan is on a political rant this evening and fifty-one thirty quickly goes to hell and I switch to ninety-three thirty to follow the program.
Sorry but the upper row of number keys have quit working for some reason. Will try to have that fixed before next week.
So far Angela has reverted to her former subdued state. Allan still ranting and throwing around four letter words, all concerning the Trump bashers.
Ninety-three thirty starts having problems by OOsixteen. A very strange radio evening. Allan stated that if he were the president the Corporation For Public Broadcasting would cease to exist. Also attacked the internet, calling it "the tower of Babel".
From ootwenty-seven my copy of the program degrades. Back to fifty-one thirty by oothirty-two trying to hear what's being said.
Phone call from Freddie at oothirty-six breaks up the rant a bit. Freddie said he hesitated to call it a rant and Allan assured him that it was a rant..
Antenna for the FM translator was installed this past week on a four hundred foot tower. Phone call at ooforty-six from a ham wanting to know if the super station and the FM translator were going to interfere with his radio. Allan assured him that all the new equipment WOULD interfere with his radio usage and that hopefully next week he could outline some steps for people to take to lesson the effect of the RFI.
Reading of emails began at oofifty-two. Hard to tell for sure as I could barely copy the program. Someone sent an email accusing Allan of not paying taxes and being a hypocrite. Couldn't copy Allan's response. Then into the Free Radio Weekly. Prayer at oonehundred and off the air at ooneotwo. I think Tom Barna may have said something about the FM translator right before reading of emails commenced but can't say for sure. John, Mid-North Indiana`` (via gh, DX LISTENING DIGEST)
** U S A. 11520, July 28 at 0606, WEWN English is on at S3-S4, after missing last night (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 15809.959, July 28 at 1343, JBA carrier, signature off-frequency must be WTWW-3; on for something special?
Check 5085 WTWW-2 and find it on at odd daytime hour of 1412, Ted says, ``Live in Lebanon from the middle-Tennessee hamfest``, and into ``Sunshine`` tune by Jonathan Edwards (what to do with hamfest??). 5085 is S9 but poor vs local noise level of S9+10!
But 15810- is NOT // 5085, as it fades in a bit to S2-S4, rather SFAW // 5830, WTWW-1 night frequency still on, and not yet 9475. 5830 is S9+10 vs QRN level of only S9, and is the OSOB.
15810-, next check at 1703 July 28, now VG and // 9475 VG SFAW. 9930 is not on, but can detect 5085 still running at midday, VP in noise level (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 12160, Saturday July 28 at 1703, WWCR NOT with `Talking Machine Show` of ancient cylinder recordings mostly music rather than talk, but instead a talking gospel huxter has replaced one of WWCR`s best shows! The July 1 edition of online pdf program schedule for WWCR-3 still claims TMS (Glenn Hauser, OK, DX LISTENING DIGEST)
This report dispatched at 2040 UT July 28
sabato 28 luglio 2018
W4HM Daily HF Radio Wave Propagation Forecast #2018-208
Greetings to my fellow hamateur radio and SWL radio enthusiasts around the
world.
Welcome to my “not for profit” daily W4HM Daily HF Radio Wave Propagation
Forecast.
It’s the only daily global HF radio wave propagation forecast produced on
the planet.
I'm a retired heliophysicist, terrestrial meteorologist/climatologist,
physical oceanographer and one of the few on the planet with advanced
education and forecast experience in all disciplines. In terrestrial weather
forecasting I
have 45 years of experience and in solar, space and geomagnetic weather
forecasting 34 years.
Created and disseminated by Thomas F. Giella, W4HM in Lakeland, FL, USA ©
1988-2018.
If you find this daily HF radio wave propagation forecast useful to your
hamateur and SWL radio activities, feel free to drop me a line and let me
know that at
thomasfgiella@gmail.com
I enjoy hearing from likeminded fellow radio enthusiasts.
Hams and SWLs that are interested in solar, space & geomagnetic weather as
well as radio wave propagation are a special group of people interested in
broadening their knowledge in science.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Supporting images associated with this daily HF radio wave propagation
forecast can be found in my Facebook account at
https://www.facebook.com/thomasfranklingiellaw4hm
and in my Twitter account at
https://twitter.com/GiellaW4hm
Last but not least here is my new HF radio wave propagation web page where
you can sign up to receive this daily HF radio wave propagation forecast via
email. https://groups.io/g/w4hmradiowavepropagationforecast but without
supporting images.
It's a NO SPAM voluntary "opt" in email type group hosted by Groups.io, so
you have to sign up by using an existing email address and creating a
password.
W4HM Solar Cycle 24 Update and Solar Cycle 25 Forecast- Short and to the
point.
Solar minimum may begin later this year and may last longer than any
previous solar cycle in the 20th century. When solar cycle 25 finally gets
underway it could be the weakest since the middle of the 19th century.
Another Dalton type lesser grand solar minimum may occur with a
corresponding cooling of earth’s climate. This would negate anthropogenic
climate change if it were occurring which it isn’t.
On February 1, 2008 I forecasted that solar cycle 24 would be the smallest
solar cycle in the past 100 years. That forecast verified. I also forecasted
that solar cycle 25 would be almost non nonexistent.
#208 Issued Saturday July 28, 2018 at 1315 UTC
Important Solar, Space & Geomagnetic Weather Indices-
Solar activity was very low.
The daily solar flux index numbers (DSFI) were 66.6 66.6 66.3
There had been 6 consecutive days with a 2000 UTC daily solar flux index
number (DSFI) of less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 6 consecutive days with an official daily sunspot number
(DSSN) of 0 and 30 of the past 31 days.
In 2018 there had been 117 days with an official daily sunspot number (DSSN)
of 0.
There was no earth facing sunspot group(s).
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 1 0 0 0 0 1 1.
The 24 hour period maximum and minimum solar wind speed ranged between 426 &
350 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition “trend” on Jul 28, 2018- steady.
HF radio wave propagation condition “trend” on Jul 29, 2018- steady.
HF radio wave propagation condition “trend” on Jul 30, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in the summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the northern hemisphere summer season the 14000- 30000 kHz frequency
range closes later due to more sun light illuminating the ionosphere than in
the southern hemisphere. But the maximum usable frequency (MUF) is lower
than in the southern hemisphere as heating in the F2 layer of the ionosphere
is higher and the layer less concentrated.
Almost daily during the northern hemisphere summer season you will find that
the 25600- 26100 kHz and 28000-30000 kHz frequency ranges will open via
short north-south and east-west propagation paths via sporadic E (Es). Also
when multiple sporadic E (Es) clouds form and line up favorably much longer
propagation paths open up on east-west paths. And last but not least
north-south propagation paths occur across the equator via trans equatorial
propagation (TEP).
Southern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the southern hemisphere winter season the 14000- 30000 kHz frequency
range closes sooner due to less sun light illuminating the ionosphere than
in the northern hemisphere. But the maximum usable frequency (MUF) is higher
than in the northern hemisphere as the F2 layer of the ionosphere is lower
in height and more concentrated.
This HF Radio wave propagation forecast is produced based on the SIGINT_CAP
HF radio wave propagation prediction software. I wrote it beginning in the
late 1980’s but I’m sorry to say that it can’t be distributed to the general
public. It does outperform VOA CAP.
And though this HF radio wave propagation forecast is produced based on the
SIGINT_CAP software, I do check the actual band conditions at my location in
the USA and tweak the forecast manually where and when necessary.
I also check global HF radio wave propagation conditions via remoted radio
receivers on every continent of the globe and tweak the forecast manually if
and when necessary.
And last but not least I look at ionsonde stations on every continent of the
globe.
The hamateur radio JT65A mode RF signal levels received are based on 5 watts
and ½ wave dipole up at 40 feet.
The hamateur radio PSK31 mode RF signal levels received are based on 25
watts and ½ wave dipole up at 40 feet.
The hamateur radio CW mode RF signal levels received are based on 50 watts
and ½ wave dipole up at 40 feet.
The hamateur radio SSB RF mode signal levels received are based on 100 watts
and ½ wave dipole up at 40 feet.
The HF shortwave broadcast band AM Mode RF signal levels are based on
100,000 watts (100 kw) and a typical high gain VOA type curtain array
antenna.
Please keep in mind that this is a relatively simplified HF radio wave
propagation forecast, so as to keep it easily understandable and applicable
by the average radio enthusiast.
Globally HF radio wave propagation conditions are most evenly balanced
during the fall and spring equinoxes and most diametrically opposed during
the summer and winter solstices.
Conditions change daily, weekly, monthly, yearly and by decade, as the
sun rises and sets at different times and at different angles from the
ecliptic, as well as by radio wave frequency. This is due to changes in the
maximum usable frequency (MUF), lowest usable frequency (LUF) and F layer
critical frequency (FoF2). Also by propagation path.
The D and E layers also come into play through RF radio wave signal
absorption and refraction. And then there is sporadic E (Es) radio wave
propagation that can really throw a wrench into the gears so to speak.
Things like sporadic E (Es) radio wave propagation and lightning storm
static can impact HF radio wave propagation in an unpredictable manner and
mostly bad.
Ongoing solar, space and geomagnetic weather goings on also impact HF radio
wave propagation conditions in a negative manner.
Lower high frequency (80-30 meters) propagation conditions are impacted in a
negative manner not so much by variations in the maximum usable frequency
(MUF) along a particular propagation path and time but rather due to
geomagnetic elevated geomagnetic conditions (Kp-3-4), storms (Kp-5 &
greater) that increase signal absorption via the E layer (the altitude of
the radio aurora). Also increases in the lowest usable frequency (LUF) via D
layer RF signal absorption due to hard x-rays, galactic cosmic waves,
elevated background solar flux levels greater than B0 and energetic proton
flux levels at energies greater than 10 MeV (10+0).
Higher frequency (20-10 meters) propagation conditions are impacted in a
negative manner by variations in the maximum usable frequency (MUF) along a
particular propagation path and time due to the current sunspot number and
also due to elevated geomagnetic conditions (Kp-3-4), storms of Kp-5 &
greater. Also D layer RF signal absorption due to elevated (greater than B0)
background solar flux levels. Also to a lesser extent elevated proton flux
at energies greater than 10 MeV (10+0).
GENERAL GUIDELINES CONCERNING CORRELATION OF PROPAGATION INDICES TO ACTUAL
HF PROPAGATION CONDITIONS-
NOTE!!! The propagation indices "interpretations" are my personal
intellectual property. Therefore the radio wave propagation indices
interpretations contained herein is copyrighted © 1988-2018 by Thomas F.
Giella, W4HM, all rights reserved. Reproduction of information herein is
allowed without permission in advance as long as proper credit is given.
All 14 of the following indices have to occur as described below in order to
see the best global high frequency radio wave propagation possible,
something that happens rarely.
1.) Dropping geomagnetic field indices numbers are better, Kp of 0 best.
2.) A daily sunspot number of 150 or higher, 200 or higher best.
3.) A daily sunspot number of greater than 100 for routine stable formation
of the E Valley/F Layer ducting mechanism.
4.) Previous 24 hour Ap index under 10, fewer than 7 for several days
consecutively are best.
5.) Previous 3 hours Kp index fewer than 3 for mid latitude paths, fewer
than 2 for high latitude paths, 0 for several days consecutively is best.
6.) Energetic protons no greater than 10 MeV (10+0).
7.) Background x-ray flux levels greater than B1 for several days
consecutively, greater than C1 best.
8.) No current STRATWARM alert.
9.) Interplanetary magnetic field (IMF) Bz with a (positive number) sign,
indicates a lesser chance of high latitude path aurora
absorption/unpredictable refraction or scattering of medium frequency RF
signals, when the Kp is above 3.
10.) A -10 or better towards a positive number Dst index during the recovery
time after a geomagnetic storm, as related to the equatorial ring current. A
positive number is best.
Standard Disclaimer-
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, other U.S. government entities and educational
institutions, to produce this daily HF radio wave propagation
forecast. This data is gathered and made public by the U.S. Government using
taxpayer $$$ (including mine).
However this daily HF propagation forecast that I produce from the RAW
public domain data is my personal intellectual property. Therefore this
daily HF radio wave propagation forecast contained herein is copyrighted ©
1988-2018 by Thomas F. Giella, W4HM.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Also HF radio wave propagation forecasting is still an inexact
science and therefore also an art. The forecasts are not official but for
educational and hobby related purposes only and are subject to human error
and acts of God, therefore no guarantee or warranty implied.
world.
Welcome to my “not for profit” daily W4HM Daily HF Radio Wave Propagation
Forecast.
It’s the only daily global HF radio wave propagation forecast produced on
the planet.
I'm a retired heliophysicist, terrestrial meteorologist/climatologist,
physical oceanographer and one of the few on the planet with advanced
education and forecast experience in all disciplines. In terrestrial weather
forecasting I
have 45 years of experience and in solar, space and geomagnetic weather
forecasting 34 years.
Created and disseminated by Thomas F. Giella, W4HM in Lakeland, FL, USA ©
1988-2018.
If you find this daily HF radio wave propagation forecast useful to your
hamateur and SWL radio activities, feel free to drop me a line and let me
know that at
thomasfgiella@gmail.com
I enjoy hearing from likeminded fellow radio enthusiasts.
Hams and SWLs that are interested in solar, space & geomagnetic weather as
well as radio wave propagation are a special group of people interested in
broadening their knowledge in science.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Supporting images associated with this daily HF radio wave propagation
forecast can be found in my Facebook account at
https://www.facebook.com/thomasfranklingiellaw4hm
and in my Twitter account at
https://twitter.com/GiellaW4hm
Last but not least here is my new HF radio wave propagation web page where
you can sign up to receive this daily HF radio wave propagation forecast via
email. https://groups.io/g/w4hmradiowavepropagationforecast but without
supporting images.
It's a NO SPAM voluntary "opt" in email type group hosted by Groups.io, so
you have to sign up by using an existing email address and creating a
password.
W4HM Solar Cycle 24 Update and Solar Cycle 25 Forecast- Short and to the
point.
Solar minimum may begin later this year and may last longer than any
previous solar cycle in the 20th century. When solar cycle 25 finally gets
underway it could be the weakest since the middle of the 19th century.
Another Dalton type lesser grand solar minimum may occur with a
corresponding cooling of earth’s climate. This would negate anthropogenic
climate change if it were occurring which it isn’t.
On February 1, 2008 I forecasted that solar cycle 24 would be the smallest
solar cycle in the past 100 years. That forecast verified. I also forecasted
that solar cycle 25 would be almost non nonexistent.
#208 Issued Saturday July 28, 2018 at 1315 UTC
Important Solar, Space & Geomagnetic Weather Indices-
Solar activity was very low.
The daily solar flux index numbers (DSFI) were 66.6 66.6 66.3
There had been 6 consecutive days with a 2000 UTC daily solar flux index
number (DSFI) of less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 6 consecutive days with an official daily sunspot number
(DSSN) of 0 and 30 of the past 31 days.
In 2018 there had been 117 days with an official daily sunspot number (DSSN)
of 0.
There was no earth facing sunspot group(s).
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 1 0 0 0 0 1 1.
The 24 hour period maximum and minimum solar wind speed ranged between 426 &
350 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition “trend” on Jul 28, 2018- steady.
HF radio wave propagation condition “trend” on Jul 29, 2018- steady.
HF radio wave propagation condition “trend” on Jul 30, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in the summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the northern hemisphere summer season the 14000- 30000 kHz frequency
range closes later due to more sun light illuminating the ionosphere than in
the southern hemisphere. But the maximum usable frequency (MUF) is lower
than in the southern hemisphere as heating in the F2 layer of the ionosphere
is higher and the layer less concentrated.
Almost daily during the northern hemisphere summer season you will find that
the 25600- 26100 kHz and 28000-30000 kHz frequency ranges will open via
short north-south and east-west propagation paths via sporadic E (Es). Also
when multiple sporadic E (Es) clouds form and line up favorably much longer
propagation paths open up on east-west paths. And last but not least
north-south propagation paths occur across the equator via trans equatorial
propagation (TEP).
Southern Hemisphere Radio Wave Propagation Forecast g-
3150-3400, 3500-4100, 4750-5050, 5700-6300 kHz- S9 +1 to 9 at night and S1-3
at day,
6900-7800, 9200-9995, 10000-10150, 11500-12200 kHz- S9+ 1 to 9 at night and
S4-7 at day,
13570-13850, 14000-14350, 15005-15900, 17450-17950, 18068-18168 kHz- S0 at
night and S3-4 at day,
21000-21850 kHz- S0 at night and S1-2 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1 at day,
28000-29700 kHz- S0 at night and S0 at day.
We are now firmly in summer/winter solstice type of HF radio wave
propagation conditions. Globally HF radio wave propagation conditions are
most unbalanced across the equator during this time period.
During the southern hemisphere winter season the 14000- 30000 kHz frequency
range closes sooner due to less sun light illuminating the ionosphere than
in the northern hemisphere. But the maximum usable frequency (MUF) is higher
than in the northern hemisphere as the F2 layer of the ionosphere is lower
in height and more concentrated.
This HF Radio wave propagation forecast is produced based on the SIGINT_CAP
HF radio wave propagation prediction software. I wrote it beginning in the
late 1980’s but I’m sorry to say that it can’t be distributed to the general
public. It does outperform VOA CAP.
And though this HF radio wave propagation forecast is produced based on the
SIGINT_CAP software, I do check the actual band conditions at my location in
the USA and tweak the forecast manually where and when necessary.
I also check global HF radio wave propagation conditions via remoted radio
receivers on every continent of the globe and tweak the forecast manually if
and when necessary.
And last but not least I look at ionsonde stations on every continent of the
globe.
The hamateur radio JT65A mode RF signal levels received are based on 5 watts
and ½ wave dipole up at 40 feet.
The hamateur radio PSK31 mode RF signal levels received are based on 25
watts and ½ wave dipole up at 40 feet.
The hamateur radio CW mode RF signal levels received are based on 50 watts
and ½ wave dipole up at 40 feet.
The hamateur radio SSB RF mode signal levels received are based on 100 watts
and ½ wave dipole up at 40 feet.
The HF shortwave broadcast band AM Mode RF signal levels are based on
100,000 watts (100 kw) and a typical high gain VOA type curtain array
antenna.
Please keep in mind that this is a relatively simplified HF radio wave
propagation forecast, so as to keep it easily understandable and applicable
by the average radio enthusiast.
Globally HF radio wave propagation conditions are most evenly balanced
during the fall and spring equinoxes and most diametrically opposed during
the summer and winter solstices.
Conditions change daily, weekly, monthly, yearly and by decade, as the
sun rises and sets at different times and at different angles from the
ecliptic, as well as by radio wave frequency. This is due to changes in the
maximum usable frequency (MUF), lowest usable frequency (LUF) and F layer
critical frequency (FoF2). Also by propagation path.
The D and E layers also come into play through RF radio wave signal
absorption and refraction. And then there is sporadic E (Es) radio wave
propagation that can really throw a wrench into the gears so to speak.
Things like sporadic E (Es) radio wave propagation and lightning storm
static can impact HF radio wave propagation in an unpredictable manner and
mostly bad.
Ongoing solar, space and geomagnetic weather goings on also impact HF radio
wave propagation conditions in a negative manner.
Lower high frequency (80-30 meters) propagation conditions are impacted in a
negative manner not so much by variations in the maximum usable frequency
(MUF) along a particular propagation path and time but rather due to
geomagnetic elevated geomagnetic conditions (Kp-3-4), storms (Kp-5 &
greater) that increase signal absorption via the E layer (the altitude of
the radio aurora). Also increases in the lowest usable frequency (LUF) via D
layer RF signal absorption due to hard x-rays, galactic cosmic waves,
elevated background solar flux levels greater than B0 and energetic proton
flux levels at energies greater than 10 MeV (10+0).
Higher frequency (20-10 meters) propagation conditions are impacted in a
negative manner by variations in the maximum usable frequency (MUF) along a
particular propagation path and time due to the current sunspot number and
also due to elevated geomagnetic conditions (Kp-3-4), storms of Kp-5 &
greater. Also D layer RF signal absorption due to elevated (greater than B0)
background solar flux levels. Also to a lesser extent elevated proton flux
at energies greater than 10 MeV (10+0).
GENERAL GUIDELINES CONCERNING CORRELATION OF PROPAGATION INDICES TO ACTUAL
HF PROPAGATION CONDITIONS-
NOTE!!! The propagation indices "interpretations" are my personal
intellectual property. Therefore the radio wave propagation indices
interpretations contained herein is copyrighted © 1988-2018 by Thomas F.
Giella, W4HM, all rights reserved. Reproduction of information herein is
allowed without permission in advance as long as proper credit is given.
All 14 of the following indices have to occur as described below in order to
see the best global high frequency radio wave propagation possible,
something that happens rarely.
1.) Dropping geomagnetic field indices numbers are better, Kp of 0 best.
2.) A daily sunspot number of 150 or higher, 200 or higher best.
3.) A daily sunspot number of greater than 100 for routine stable formation
of the E Valley/F Layer ducting mechanism.
4.) Previous 24 hour Ap index under 10, fewer than 7 for several days
consecutively are best.
5.) Previous 3 hours Kp index fewer than 3 for mid latitude paths, fewer
than 2 for high latitude paths, 0 for several days consecutively is best.
6.) Energetic protons no greater than 10 MeV (10+0).
7.) Background x-ray flux levels greater than B1 for several days
consecutively, greater than C1 best.
8.) No current STRATWARM alert.
9.) Interplanetary magnetic field (IMF) Bz with a (positive number) sign,
indicates a lesser chance of high latitude path aurora
absorption/unpredictable refraction or scattering of medium frequency RF
signals, when the Kp is above 3.
10.) A -10 or better towards a positive number Dst index during the recovery
time after a geomagnetic storm, as related to the equatorial ring current. A
positive number is best.
Standard Disclaimer-
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, other U.S. government entities and educational
institutions, to produce this daily HF radio wave propagation
forecast. This data is gathered and made public by the U.S. Government using
taxpayer $$$ (including mine).
However this daily HF propagation forecast that I produce from the RAW
public domain data is my personal intellectual property. Therefore this
daily HF radio wave propagation forecast contained herein is copyrighted ©
1988-2018 by Thomas F. Giella, W4HM.
Feel free without prior permission to redistribute this daily HF radio wave
propagation forecast, as long as you redistribute it in its entirety and
give me credit for it.
Also HF radio wave propagation forecasting is still an inexact
science and therefore also an art. The forecasts are not official but for
educational and hobby related purposes only and are subject to human error
and acts of God, therefore no guarantee or warranty implied.
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