lunedì 30 aprile 2018
Propagation outlook from Boulder
:Product: Weekly Highlights and Forecasts
:Issued: 2018 Apr 30 0140 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 April 2018
Solar activity was very low. The strongest event of the period was a
B2/Sf from Region 2706 (N03, L=281, class/area Dao/130 on 22 Apr) on
24/2145 UTC. The region slowly decayed to plage by 28 Apr. No
Earth-directed CMEs were observed in available coronagraph imagery.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit were at
high levels on 23-24 Apr, normal to high levels on 25 and 28 Apr,
and moderate to high levels on 26, 27 and 29 Apr. The slowly
decaying elevated levels were enhanced from CH HSS activity prior to
23 Apr.
Geomagnetic field activity was mostly quiet with isolated periods of
unsettled observed on 23 and 27 Apr. No notable disturbances in the
solar wind were observed.
FORECAST OF SOLAR AND GEOMAGNETIC ACTIVITY 30 APRIL - 26 MAY 2018
Solar activity is expected to continue at very low levels over 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 Apr and 07-26 May. Normal to
moderate levels are expected from 01-06 May. Enhancements in
electron flux are expected due to the anticipation of multiple,
recurrent CH HSSs.
Geomagnetic field activity is expected to range from quiet to G2
(moderate) geomagnetic storm levels. Quiet conditions are likely to
persist until the arrival of the first of two negative polarity CH
HSSs. Unsettled conditions on 06 May are likely to increase to G1
(Minor) storm levels on 07 May before decreasing to active on 08 May
and finally unsettled over 09-10 May as the CH HSS wanes. Quiet
conditions are then likely to persist over 11-16 May until the
arrival of the second CH HSS. G2 (Moderate) storm levels likely on
17 May during the onset of the CIR ahead of the HSS. Unsettled to
active conditions are likely on 18 May as total field strength
decreases to around 5 nT with the HSS proper. Quiet to unsettled
conditions are expected over 19 May as solar wind speeds slowly
taper off. The remainder of the outlook period is expected to be
mostly quiet under a nominal solar wind environment.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 Apr 30 0140 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 2018-04-30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2018 Apr 30 70 5 2
2018 May 01 70 5 2
2018 May 02 68 5 2
2018 May 03 68 5 2
2018 May 04 68 5 2
2018 May 05 68 5 2
2018 May 06 68 8 3
2018 May 07 68 15 5
2018 May 08 68 12 4
2018 May 09 68 10 3
2018 May 10 68 8 3
2018 May 11 68 5 2
2018 May 12 68 5 2
2018 May 13 68 5 2
2018 May 14 70 5 2
2018 May 15 70 5 2
2018 May 16 70 5 2
2018 May 17 70 42 6
2018 May 18 70 12 4
2018 May 19 70 8 3
2018 May 20 70 5 2
2018 May 21 70 5 2
2018 May 22 70 5 2
2018 May 23 70 5 2
2018 May 24 70 5 2
2018 May 25 70 5 2
2018 May 26 70 5 2
(SWPC via DXLD)
:Issued: 2018 Apr 30 0140 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 April 2018
Solar activity was very low. The strongest event of the period was a
B2/Sf from Region 2706 (N03, L=281, class/area Dao/130 on 22 Apr) on
24/2145 UTC. The region slowly decayed to plage by 28 Apr. No
Earth-directed CMEs were observed in available coronagraph imagery.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit were at
high levels on 23-24 Apr, normal to high levels on 25 and 28 Apr,
and moderate to high levels on 26, 27 and 29 Apr. The slowly
decaying elevated levels were enhanced from CH HSS activity prior to
23 Apr.
Geomagnetic field activity was mostly quiet with isolated periods of
unsettled observed on 23 and 27 Apr. No notable disturbances in the
solar wind were observed.
FORECAST OF SOLAR AND GEOMAGNETIC ACTIVITY 30 APRIL - 26 MAY 2018
Solar activity is expected to continue at very low levels over 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 Apr and 07-26 May. Normal to
moderate levels are expected from 01-06 May. Enhancements in
electron flux are expected due to the anticipation of multiple,
recurrent CH HSSs.
Geomagnetic field activity is expected to range from quiet to G2
(moderate) geomagnetic storm levels. Quiet conditions are likely to
persist until the arrival of the first of two negative polarity CH
HSSs. Unsettled conditions on 06 May are likely to increase to G1
(Minor) storm levels on 07 May before decreasing to active on 08 May
and finally unsettled over 09-10 May as the CH HSS wanes. Quiet
conditions are then likely to persist over 11-16 May until the
arrival of the second CH HSS. G2 (Moderate) storm levels likely on
17 May during the onset of the CIR ahead of the HSS. Unsettled to
active conditions are likely on 18 May as total field strength
decreases to around 5 nT with the HSS proper. Quiet to unsettled
conditions are expected over 19 May as solar wind speeds slowly
taper off. The remainder of the outlook period is expected to be
mostly quiet under a nominal solar wind environment.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 Apr 30 0140 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 2018-04-30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2018 Apr 30 70 5 2
2018 May 01 70 5 2
2018 May 02 68 5 2
2018 May 03 68 5 2
2018 May 04 68 5 2
2018 May 05 68 5 2
2018 May 06 68 8 3
2018 May 07 68 15 5
2018 May 08 68 12 4
2018 May 09 68 10 3
2018 May 10 68 8 3
2018 May 11 68 5 2
2018 May 12 68 5 2
2018 May 13 68 5 2
2018 May 14 70 5 2
2018 May 15 70 5 2
2018 May 16 70 5 2
2018 May 17 70 42 6
2018 May 18 70 12 4
2018 May 19 70 8 3
2018 May 20 70 5 2
2018 May 21 70 5 2
2018 May 22 70 5 2
2018 May 23 70 5 2
2018 May 24 70 5 2
2018 May 25 70 5 2
2018 May 26 70 5 2
(SWPC via DXLD)
Welcome to the EDXC Conference 2018
Dear DX Friend,
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 (possibly 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 and
updates can be found on EDXC blog (https://edxcnews.wordpress.
Once again, we would like to see you at the EDXC conference 2018. You are
warmly welcome!
Kari Kivekäs
Secretary General of EDXC
Jan-Mikael Nurmela
Assistant Secretary General of EDXC
W4HM Daily HF Radio Wave Propagation Forecast #2018-119
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 and
one of the few on the planet with advanced education and forecast
experience in both 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.
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
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.
#119 Issued Monday April 30, 2018 at 1430 UTC
Important Solar, Space & Geomagnetic Weather Indices-
The daily solar flux index numbers (DSFI) were 71.0 71.1 71.0
There had been 1 day in a row with a 2000 UTC daily solar flux index number
(DSFI) above 70.
The official daily sunspot number (DSSN) was 0.
There had been 2 days in a row with a daily sunspot number (DSSN) of 0.
In 2018 there had been 69 days with a daily sunspot number (DSSN) of 0.
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 0 1 1 2 1 0 1.
The 24 hour period maximum and minimum solar wind speed ranged between 471 &
337 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition trend April 30, 2018- improving.
HF radio wave propagation condition trend May 01, 2018- steady.
HF radio wave propagation condition trend May 02, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
Southern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
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 and
one of the few on the planet with advanced education and forecast
experience in both 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.
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
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.
#119 Issued Monday April 30, 2018 at 1430 UTC
Important Solar, Space & Geomagnetic Weather Indices-
The daily solar flux index numbers (DSFI) were 71.0 71.1 71.0
There had been 1 day in a row with a 2000 UTC daily solar flux index number
(DSFI) above 70.
The official daily sunspot number (DSSN) was 0.
There had been 2 days in a row with a daily sunspot number (DSSN) of 0.
In 2018 there had been 69 days with a daily sunspot number (DSSN) of 0.
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 1 0 1 1 2 1 0 1.
The 24 hour period maximum and minimum solar wind speed ranged between 471 &
337 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition trend April 30, 2018- improving.
HF radio wave propagation condition trend May 01, 2018- steady.
HF radio wave propagation condition trend May 02, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
Southern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
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.
This week on BSR Magazine Show from BroadSpectrumRadio.com
This
week for the BSR International Magazine Show...
An
all digital format show
1st
half hour -BSR Radiogram #6, (scheduled for last week but not aired due to a
technical issue) with a few small fixes - featuring pictures of postage stamps
on the topic of Oklahoma
2nd half hour - BSR Radiogram #7 - pictures of
Cuban postage stamps from the Spanish colonial era to the current revolutionary
republic, all taken from my own stamp collection. --- In honor of Radio Havana
Cuba's 57th birthday.
Format is
MFSK32.
The mp3 file will be uploaded in a few minutes to broadspectrumradio.com.
73,
James Branum, KG5JST
5 May 2018: North Korea changes time again
North Korea changes time again from 5 May Juche 107 (2018). From then on, the former UTC +9 time will apply. Read official full text below. (via Arnulf Piontek, Berlin, Germany)
Proposal for Resetting DPRK’s Standard Time
KIM JONG UN, Chairman of the Workers' Party of Korea and Chairman of the State Affairs Commission of the DPRK, put forward a proposal for resetting the standard time of the DPRK.
During his visit to the southern area for the third historic Inter-Korean summit and talks, he discussed with south Korean President Moon Jae In the matter of unifying the standard times of the north and the south.
He felt heartrending to see two clocks hanging on a wall of the summit venue that indicate the Pyongyang and Seoul times, he noted, proposing unifying the times before doing anything else.
It is not an abstract meaning that the north and the south become one, but it is just a process in which the north and the south turn their different and separated things into the same and single ones, he said, expressing his resolution to unify the two times existing in the Korean peninsula as the first practical step for achieving national reconciliation and unity.
True to his suggestion of examining and approving the proposal by a relevant field in the north, the Presidium of the DPRK Supreme People's Assembly adopted a decree "On Resetting the Pyongyang Time".
Decree on Redesignating Pyongyang Time
The Presidium of the Supreme People's Assembly of the DPRK adopted the following decree on April 30 to unify the Pyongyang and Seoul times.
The decree reads:
Firstly, the Pyongyang time shall be reset into GMT+09:00 (30 minutes earlier than the present time) with 135 degree of east longitude as the prime meridian.
Secondly, the reset Pyongyang time shall be applied from May 5, Juche 107 (2018).
Thirdly, the Cabinet and relevant organs of the DPRK shall take practical measures to implement the decree.
Agenda DX 30/04/2018
ANNIVERSARIO EMITTENTI
R. RSA (1991) - R. Itapirema, brasile 1390 Khz (1994)
Virgin R., Gran Bretagna 1215 Khz (1993)
Radio Guaìba, Brasile 720 - 6000 - 11785 Khz (1957)
Radio Guatapurì, Colombia 740 Khz (1963)
WRDZ, Ohio 1260 Khz (1950)
CKRD, Alberta, Canada 700 Khz (1949)
FESTE NAZIONALI
Compleanno della Regina Beatrice in Olanda e nelle Antille
R. RSA (1991) - R. Itapirema, brasile 1390 Khz (1994)
Virgin R., Gran Bretagna 1215 Khz (1993)
Radio Guaìba, Brasile 720 - 6000 - 11785 Khz (1957)
Radio Guatapurì, Colombia 740 Khz (1963)
WRDZ, Ohio 1260 Khz (1950)
CKRD, Alberta, Canada 700 Khz (1949)
FESTE NAZIONALI
Compleanno della Regina Beatrice in Olanda e nelle Antille
domenica 29 aprile 2018
Log Andreas Stumpf
28.4
Radio Nacional de Angola, Angola, 22’30 GMT, 4’950 kHz, Portuguese
http://www.hb9gce.ch/Radio%20Nacional%20de%20Angola_Angola_28042018_2230%20GMT_4950%20kHz_portuguese_Yaesu%20FT%202000_ALA%201530%20LNP_Schwarzsee_CH.mp3
27.4
All India Radio, India 21’00 GMT, 7’550 kHz, English
http://www.hb9gce.ch/All%20India%20Radio_India_27042018_2100%20GMT_7550%20kHz_english_Yaesu%20FT%202000_ALA%201530%20LNP_Schwarzsee_CH.mp3
21.4
Radio Guinée, Guinea, 18’30 GMT, 9’650 kHz, Frenchhttp://www.hb9gce.ch/Radio%20Guinee_Guinea_21042018_1830%20GMT_9650%20kHz_french_Yaesu%20FT%202000_ALA%201530%20LNP_Schwarzsee_CH.mp3
RX
Yaesu FT-2000
Antenna:
Wellbrook ALA 1530 LNP
Location:Schwarzsee, Switzerland
46° 39' 16" N
7° 16' 27" E1050 MSL
Best 73's
Andy, HB9GCE
www.hb9gce.ch
Radio Nacional de Angola, Angola, 22’30 GMT, 4’950 kHz, Portuguese
http://www.hb9gce.ch/Radio%20Nacional%20de%20Angola_Angola_28042018_2230%20GMT_4950%20kHz_portuguese_Yaesu%20FT%202000_ALA%201530%20LNP_Schwarzsee_CH.mp3
27.4
All India Radio, India 21’00 GMT, 7’550 kHz, English
http://www.hb9gce.ch/All%20India%20Radio_India_27042018_2100%20GMT_7550%20kHz_english_Yaesu%20FT%202000_ALA%201530%20LNP_Schwarzsee_CH.mp3
21.4
Radio Guinée, Guinea, 18’30 GMT, 9’650 kHz, Frenchhttp://www.hb9gce.ch/Radio%20Guinee_Guinea_21042018_1830%20GMT_9650%20kHz_french_Yaesu%20FT%202000_ALA%201530%20LNP_Schwarzsee_CH.mp3
RX
Yaesu FT-2000
Antenna:
Wellbrook ALA 1530 LNP
Location:Schwarzsee, Switzerland
46° 39' 16" N
7° 16' 27" E1050 MSL
Best 73's
Andy, HB9GCE
www.hb9gce.ch
Glenn Hauser logs April 28-29, 2018
** ANGUILLA. 11775, April 29 at 1337, PMS is on; I don`t keep a detailed log, but it seems she is often active on Sunday mornings, strangely enough, altho it`s not a live service (Glenn Hauser, OK, DX LISTENING DIGEST)
** BANGLADESH. 15505, April 29 at 1400:00, JBA carrier from Bangladesh Betar, but enough to hear the final timepip right on the mark! Congratulations (Glenn Hauser, OK, DX LISTENING DIGEST)
** CHINA [and non]. 11900, April 28 at 1359, VOA Yankee Doodle Dandy IS and sign-on, already mixing with CNR1 jamming leading to 5+1 timesignal at 1400. VOA is a one-hour broadcast in Chinese via Tinang, PHILIPPINES (Glenn Hauser, OK, DX LISTENING DIGEST)
** CUBA. 5025, April 29 at 0121, R. Rebelde music is distorted and overmodulated, carrier unstable. Something`s always wrong at RadioCuba (Glenn Hauser, OK, DX LISTENING DIGEST)
** CUBA. 11760, Sunday April 29 at 1335, quick check of `En Contacto` on RHC finds anchorette & Arnie discussing ``Radio Sud-Atlántico`` and ``Ani Argentina`` as names have been misretranslated concerning the Falklands War, e.g. really called Radio Atlántico del Sur. Something`s always wrong at RHC (Glenn Hauser, OK, DX LISTENING DIGEST)
** GUATEMALA. 4055, again UT Sunday April 29 at 0542, no signal from Radio Verdad, instead of -0610v*. Wonder if a permanent earlier sign-off, not just on UT Mondays? Still hearing it at earlier random evening chex (Glenn Hauser, OK, DX LISTENING DIGEST)
** KOREA NORTH. 9435, April 28 at 1403, VOK in English about the N/S summit at the DMZ, S6-S9 with noisy self-jamming bleed; if // 11710, it`s very poor.
11735, April 29 at 0530, VOK IS and Spanish sign-on, S4-S6; not heard for a long time as I often check 11725 for NZ. Maybe a sign of summer conditions.. // 13760 is JBA carrier. One of their incredible middle-of-night broadcasts to South America. Maybe they assume non-North Koreans also have to listen to hostile radios then to avoid detexion?
Un announced that the NK timezone will be moved back to UT+9 as a step toward reunification. When he abruptly changed it to +8:30 a few years ago, all VOK broadcasts also shifted, mired in local rather than Universal time, so we may expect the same again, i.e. 30 minutes earlier than they have been, generally starting on hourtops rather than hourbottoms UT; but whence? (Glenn Hauser, OK, DX LISTENING DIGEST)
** NORTH AMERICA. 6945-USB, April 29 at 0123, VG S9+10 pirate song, 0125 Wolverine Radio ID; off at next check 0201. Many more logs:
https://www.hfunderground.com/board/index.php/topic,42138.0.html
and it seems that after WR went off at 0138, Underdog Radio came up on same frequency for about 5 minutes including SSTV:
https://www.hfunderground.com/board/index.php/topic,42144.0.html
(Glenn Hauser, OK, DX LISTENING DIGEST)
** SLOVAKIA [non]. 9455, April 29 at 1405, R. Eslovaquia Internacional still here in Spanish, yet not shown explicitly on revamped WRMI schedules: just System B ``repeats of regular programming`` at 14-15 on 9455, or rather 10-11 am EDT (Glenn Hauser, OK, DX LISTENING DIGEST)
** SAIPAN. 13790.040, April 29 at 0535, very poor music and talk in Chinese.. That would be RFA scheduled at 0300-0700, rather than the jammer which would not be so off-frequency, while the Kamosa stations have a track record of imprecision (Glenn Hauser, OK, DX LISTENING DIGEST)
** SPAIN. 15520, Sunday April 29 at 1401, no signal from REE, but 17855 is good S9, and weaker // 17715 also audible as excited coverage of a partido estúpido de pelotas is getting underway (Glenn Hauser, OK< DX LISTENING DIGEST)
** UGANDA [non]. 15239.928, Saturday April 28 at 1406, JBA music, on signature off-frequency of WWRB, measured on my R-75, i.e. R. Munansi back after a week off for maintenance. Better signal at 1428 with hilife, via UTwente on 15239.93. At 1719 back on own receiver, very poor music at S3 about equal to noise level (Glenn Hauser, oK, DX LISTENING DIGEST)
** U K [non]. 12065, April 29 at 1335, interview in English, fair S7-S9. Altho WEWN is allegedly scheduled at 1200-1500 per NDXC/Aoki, it`s really BBC via SINGAPORE at 13-14 (also 12-13 via Oman) (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. WORLD OF RADIO 1927 monitoring: Ivo Ivanov, Bulgaria reports: GERMANY, Reception of World of Radio via HLR on 6190 CUSB, April 28 0631-0700 6190 GOH 001 kW / 230 deg to CEu Sat fair to good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-of-radio-via-hlr-on_28.html
Altho UTwente could not hear Hamburger Lokalradio Saturday April 28 at 1431 on 6190-CUSB, Alan Gale in England reports: ``Hi Glenn, I can confirm that World of Radio was audible here today again on 6190 kHz CUSB at 1430 UT, though reception was a bit mixed, with the signal up at times, and fading right out at others. The strongest reception was between 1448 and 1455 when the signal was at its loudest. Mind you, I couldn't hear HLR at all before 1430 and was beginning to think HLR was still off the air, so I was pleased to hear the programme at all. Alan``
Another no-show on WBCQ, 9330v-CUSB, Saturday April 28 at 2131, where it had been for months altho never correct time shown on the schedule; instead presumed TOMBS continues, and lately it`s always been music around this time of mid-hours rather than talk. If WOR still missing Sunday at 2330, it will have been off for a full week and I may be tempted to think it`s been canceled without notice. No one tells me anything. However, AW may have been distracted lately by getting remarried.
Another no-show for WOR, Saturday April 28 at 2300 on WRMI 7780; instead for the third week, `Voice of the Report of the Week` is playing, despite WRMI skedgrid still showing WOR. I had asked Jeff if this was intentional or a mistake, but no reply other than continuing to play VORW. It seems VORW has no website where one might look up the current schedule as known to him.
WOR 1927 finally confirmed UT Sunday April 29 at 0200 on WRMI, 7780, fair S9 to S9+10.
Another no-show on WA0RCR, 1860-AM, Wentzville MO, nominally scheduled 0315 UT Sundays: not on at 0331 check, so running late as often happens? Still not at 0358, but ARRL news, until 0408 switch to Amateur Radio Newsline. I`ve asked Vern what happened, but no reply yet. His website schedule does not mention World of Radio, so maybe also canceled without notice? Next:
Sun 1900 WRMI 9395 to NNW [NEW]
Sun 2330 WBCQ 9330v-CUSB to WSW [maybe]
Mon 0130 WRMI 5850 to NW, [5950 to S ? not last weeks], 7780 to NE
Mon 0300v WBCQ 5130v Area 51 to WSW
Mon 0330 WRMI 9955 to SSE
Mon 0400 WRMI webcast only
Mon 2330 WBCQ 9330v-CUSB to WSW [maybe]
Tue 0030 WRMI 7730 to WNW
Tue 2030 WRMI 7780 to NE, 9455 to WNW [or #1928?]
Tue 2130 WRMI 7780 to NE, 9455 to WNW [or #1928?]
Full WOR sked on all outlets, podcast access:
http://www.worldofradio.com/radioskd.html
(Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 5085, April 29 at 0122, WTWW has succeeded in airing `Theater Organ in the Ozarx`, VG and with the weak parasitic spurs plus and minus 12.9 kHz, which no one else seems to notice or report; also flanking 9475 when it`s on (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 1130, April 28 circa 1700 UT, KLEY Wellington KS still out of whack cutting on and off. Another caradio recording made at Enid`s kite festival field away from power lines:
http://www.w4uvh.net/KLEY1130SNAFU3.mp3
According to signs, it`s a large vacant lot for sale by Hiram Champlin of 1390 KCRC about a mile away (Glenn Hauser, OK, DX LISTENING DIGEST)
UNIDENTIFIED. 11885, April 29 at 0528, no signal, contrary to the praise/music I was hearing before and after 0530 April 25. Also not heard anything on some intervening dates. The only listee of PBS Xinjiang remains doubtful (Glenn Hauser, OK, DX LISTENING DIGEST)
This report dispatched at 1704 UT April 29
W4HM Daily HF Radio Wave Propagation Forecast #2018-118
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 and
one of the few on the planet with advanced education and forecast
experience in both 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.
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
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.
#118 Issued Sunday April 29, 2018 at 1530 UTC
Important Solar, Space & Geomagnetic Weather Indices-
The daily solar flux index numbers (DSFI) were 69.0 69.9 69.9
There had been 3 days in a row with a 2000 UTC daily solar flux index number
(DSFI) less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 1 day in a row with a daily sunspot number (DSSN) of 0.
In 2018 there had been 68 days with a daily sunspot number (DSSN) of 0.
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 2 1 0 0 1 1 0 0.
The 24 hour period maximum and minimum solar wind speed ranged between 380 &
346 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition trend April 29, 2018- improving.
HF radio wave propagation condition trend April 30, 2018- steady.
HF radio wave propagation condition trend May 01, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
Southern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
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 and
one of the few on the planet with advanced education and forecast
experience in both 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.
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
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.
#118 Issued Sunday April 29, 2018 at 1530 UTC
Important Solar, Space & Geomagnetic Weather Indices-
The daily solar flux index numbers (DSFI) were 69.0 69.9 69.9
There had been 3 days in a row with a 2000 UTC daily solar flux index number
(DSFI) less than 70.
The official daily sunspot number (DSSN) was 0.
There had been 1 day in a row with a daily sunspot number (DSSN) of 0.
In 2018 there had been 68 days with a daily sunspot number (DSSN) of 0.
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet geomagnetic condition of 2 1 0 0 1 1 0 0.
The 24 hour period maximum and minimum solar wind speed ranged between 380 &
346 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition trend April 29, 2018- improving.
HF radio wave propagation condition trend April 30, 2018- steady.
HF radio wave propagation condition trend May 01, 2018- steady.
Northern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
Southern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
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.
SWLDXBulgaria News & DX RE MIX NEWS#1070, April 28-29
AUSTRIA(non) Reception of Radio DARC via ORF Moosbrunn on April 29:
0900-1000 on 6070 MOS 100 kW / non-dir to CeEu German Sun, very good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-radio-darc-via-orf_29.html
DX RE MIX NEWS#1070 of Georgi Bancov & Ivo Ivanov. April 29, 2018
http://swldxbulgaria.blogspot.bg/2018/04/dx-re-mix-news-1070.html
EGYPT Unidentified station with Egyptian music on April 29
0925-0930 on 9550 unknown tx / unknown to ???? Music, good:
1030-1035 on 9400*unknown tx / unknown to ???? Music, good:
* co-ch same 9400 IBA 100 kW / 330 deg to EaAs Chinese FEBC
http://swldxbulgaria.blogspot.bg/2018/04/unidentified-station-with-egyptian_29.html
FRANCE(non) Reception of BRB Voice of Amara Radio via TDF Issoudun, April 28
1700-1800 on 15360 ISS 250 kW / 120 deg to EaAf Amharic Sat-Mon/Wed, very good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-brb-voice-of-amara-radio.html
FRANCE(non) Reception of TDA Telediffusion d'Algerie via Issoudun on April 28
1900-1959 on 11985 ISS 500 kW / 162 deg to CEAf Arabic Holy Quran px* very good
1900-1959 on 12060 ISS 500 kW / 194 deg to NWAf Arabic Holy Quran px* very good
2000-2059 on 9655 ISS 500 kW / 162 deg to CEAf Arabic Holy Quran px, very good
2000-2059 on 12060 ISS 500 kW / 194 deg to NWAf Arabic Holy Quran px, very good
*xx00-xx03 frequency announcement in Arabic & xx03-xx13 news bulletin in French
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-tda-telediffusion-dalgerie.html
GERMANY Good signal of New Shortwave Radio for Europe, April 28
1844&1944 on 3975 WIS 001 kW / non-dir to NWEu English Mon-Sat:
http://swldxbulgaria.blogspot.bg/2018/04/good-signal-of-new-shortwave-radio-for_29.html
GERMANY(non) HCJB Voice of The Andes via MBR Moosbrunn on April 28
1530-1602 on 13800 MOS 100 kW / 095 deg to CeAs Russian Sat, very good
1602-1630 on 13800 MOS 100 kW / 095 deg to CeAs Chechen Sat, fair/good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-hcjb-voice-of-andes-via_29.html
GERMANY(non) Reception of Radio Itahuka via MBR Talata Volonondry on April 28
1800-1900 on 15420 MDC 250 kW / 320 deg to SoAf Kirundi Sat, weak plus jamming:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-radio-itahuka-via-mbr_29.html
GERMANY(non) Lutheran World Federation/Voice of Gospel via MBR Issoudun, April 28:
1830-1900 on 15315 ISS 500 kW / 180 deg to WCAf Fulfulde Sawtu Linjilia, good signal
http://swldxbulgaria.blogspot.bg/2018/04/lutheran-world-federationvoice-of_29.html
GERMANY(non) Reception of BVBroadcasting via MBR Nauen on April 29:
0700-0730 on 5945 NAU 100 kW / 260 deg to WeEu English Sun, very good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-bvbroadcasting-via-mbr_29.html
GUAM Reception of KTWR Trans World Radio Asia in English on April 14
1059-1156 on 11965 TWR 100 kW / 263 deg to SEAs English Sun, weak/fair
1102-1146 on 9910 TWR 200 kW / 305 deg to EaAs Chi/Eng Sun, fair/good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-ktwr-trans-world-radio_29.html
JAPAN(non) Frequency changes of JSR Shiokaze Sea Breeze from April 28
http://swldxbulgaria.blogspot.bg/2018/04/frequency-changes-of-jsr-shiokaze-sea.html
KOREA D.P.R. North Korea to shift time zone from GMT+8.5 to GMT+9
http://swldxbulgaria.blogspot.bg/2018/04/north-korea-to-shift-time-zone-from.html
SECRETLAND(non) The Mighty KBC Radio via SPL Secretbrod on April 28:
1500-1600 on 9400 SCB 100 kW / 306 deg to WeEu English Sat, fair/good
Frequency change for The Mighty KBC Radio to North America from May 6:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-mighty-kbc-radio-via-spl.html
SOUTH AFRICA South African Radio League Amateur Radio Today, April 29
0800&0845 on 17760 MEY 250 kW / 019 deg to EaAf English Sun, good/fair,
0848&0952 on 17760 MEY 250 kW / 019 deg to EaAf open carrier and tx off
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-south-african-radio-league.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
0900-1000 on 6070 MOS 100 kW / non-dir to CeEu German Sun, very good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-radio-darc-via-orf_29.html
DX RE MIX NEWS#1070 of Georgi Bancov & Ivo Ivanov. April 29, 2018
http://swldxbulgaria.blogspot.bg/2018/04/dx-re-mix-news-1070.html
EGYPT Unidentified station with Egyptian music on April 29
0925-0930 on 9550 unknown tx / unknown to ???? Music, good:
1030-1035 on 9400*unknown tx / unknown to ???? Music, good:
* co-ch same 9400 IBA 100 kW / 330 deg to EaAs Chinese FEBC
http://swldxbulgaria.blogspot.bg/2018/04/unidentified-station-with-egyptian_29.html
FRANCE(non) Reception of BRB Voice of Amara Radio via TDF Issoudun, April 28
1700-1800 on 15360 ISS 250 kW / 120 deg to EaAf Amharic Sat-Mon/Wed, very good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-brb-voice-of-amara-radio.html
FRANCE(non) Reception of TDA Telediffusion d'Algerie via Issoudun on April 28
1900-1959 on 11985 ISS 500 kW / 162 deg to CEAf Arabic Holy Quran px* very good
1900-1959 on 12060 ISS 500 kW / 194 deg to NWAf Arabic Holy Quran px* very good
2000-2059 on 9655 ISS 500 kW / 162 deg to CEAf Arabic Holy Quran px, very good
2000-2059 on 12060 ISS 500 kW / 194 deg to NWAf Arabic Holy Quran px, very good
*xx00-xx03 frequency announcement in Arabic & xx03-xx13 news bulletin in French
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-tda-telediffusion-dalgerie.html
GERMANY Good signal of New Shortwave Radio for Europe, April 28
1844&1944 on 3975 WIS 001 kW / non-dir to NWEu English Mon-Sat:
http://swldxbulgaria.blogspot.bg/2018/04/good-signal-of-new-shortwave-radio-for_29.html
GERMANY(non) HCJB Voice of The Andes via MBR Moosbrunn on April 28
1530-1602 on 13800 MOS 100 kW / 095 deg to CeAs Russian Sat, very good
1602-1630 on 13800 MOS 100 kW / 095 deg to CeAs Chechen Sat, fair/good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-hcjb-voice-of-andes-via_29.html
GERMANY(non) Reception of Radio Itahuka via MBR Talata Volonondry on April 28
1800-1900 on 15420 MDC 250 kW / 320 deg to SoAf Kirundi Sat, weak plus jamming:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-radio-itahuka-via-mbr_29.html
GERMANY(non) Lutheran World Federation/Voice of Gospel via MBR Issoudun, April 28:
1830-1900 on 15315 ISS 500 kW / 180 deg to WCAf Fulfulde Sawtu Linjilia, good signal
http://swldxbulgaria.blogspot.bg/2018/04/lutheran-world-federationvoice-of_29.html
GERMANY(non) Reception of BVBroadcasting via MBR Nauen on April 29:
0700-0730 on 5945 NAU 100 kW / 260 deg to WeEu English Sun, very good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-bvbroadcasting-via-mbr_29.html
GUAM Reception of KTWR Trans World Radio Asia in English on April 14
1059-1156 on 11965 TWR 100 kW / 263 deg to SEAs English Sun, weak/fair
1102-1146 on 9910 TWR 200 kW / 305 deg to EaAs Chi/Eng Sun, fair/good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-ktwr-trans-world-radio_29.html
JAPAN(non) Frequency changes of JSR Shiokaze Sea Breeze from April 28
http://swldxbulgaria.blogspot.bg/2018/04/frequency-changes-of-jsr-shiokaze-sea.html
KOREA D.P.R. North Korea to shift time zone from GMT+8.5 to GMT+9
http://swldxbulgaria.blogspot.bg/2018/04/north-korea-to-shift-time-zone-from.html
SECRETLAND(non) The Mighty KBC Radio via SPL Secretbrod on April 28:
1500-1600 on 9400 SCB 100 kW / 306 deg to WeEu English Sat, fair/good
Frequency change for The Mighty KBC Radio to North America from May 6:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-mighty-kbc-radio-via-spl.html
SOUTH AFRICA South African Radio League Amateur Radio Today, April 29
0800&0845 on 17760 MEY 250 kW / 019 deg to EaAf English Sun, good/fair,
0848&0952 on 17760 MEY 250 kW / 019 deg to EaAf open carrier and tx off
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-south-african-radio-league.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
RTL Radio 68
The French station RTL will celebrate the 50th anniversary of the events of May 1968, with a web radio "RTL Radio 68".
This webradio will be audible for 24 hours from May 3rd at 1600 UTC on www.rtl.fr.
Also audible the night from 2300 to 0230 UTC on the LW 234 kHz and also FM in France.
(via Christian Ghibaudo)
This webradio will be audible for 24 hours from May 3rd at 1600 UTC on www.rtl.fr.
Also audible the night from 2300 to 0230 UTC on the LW 234 kHz and also FM in France.
(via Christian Ghibaudo)
North Korea to shift time zone
As widely reported, at the inter-Korean summit on 27 April Kim Jong-un said he
would move North Korea back to the GMT+9 time zone (the same as South Korea and
Japan).
North Korea only moved to GMT+8.5 in 2015.
The change
will make the times of NK broadcasts 30 minutes earlier according to GMT.
(Chris
via WOR io group)
Ascolti AM Luca Botto Fiora
Ascolti AM
(orari UTC)
+++ Ascoltata per la prima volta.
6320 20.04.2018 1935-1937 PIR R. ABU DHABI, EE, IDs OM e s/off. SF-BN LB
11735 18.04.2018 1800-1810 TZA ZANZIBAR BC, EE, nxs YL. BN LB
11830 20.04.2018 1852-1915 F R. NDARASON INT., Kanuri, ann. YL. SF LB +++
11950 22.04.2018 1600-1630 BUL AWR, Kostinbrod, EE, tk YL. SF
SEGNALE-SIGNAL
JBA - Portante-Carrier
IN - Insufficiente-Poor
SF - Sufficiente-Fair
BN - Buono-Good
MB - Molto Buono-Very Good
***
Luca Botto Fiora SWL I1-0799GE
QTH Rapallo (Genova) - Italia
G. C. 44° 21' 15.2" N / 9° 13' 37.8" E
***
RICEVITORI
R7 Drake (R7)
VR5000DSP Yaesu (VR)
PL-660 Tecsun (PL)
-
ANTENNE
Loop in ferrite di 75 cm ACA modificata per LW-VLF
-
Dipolo 16 metri
Balun su ferrite
-
ACCESSORI
(per loop MW-VLF)
Preamplificatore RF K0LR-WA1ION autocostruito (escludibile)
-
(per dipolo HF)
Eliminatore di QRM MFJ 1026 modificato W8JI (escludibile)
Preamplificatore RF kit LX1456 NE (escludibile)
Splitters 0-1000 MHz a 2 vie GBC
-
REGISTRATORI IC SONY:
ICD-BX800 (R7)
ICD-B500 (VR)
ICD-BX112 (PL)
***
SOFTWARE
(Mac OS X 10.6.8)
Audacity 2.2.0 (acquisizione-conversione audio)
DXToolbox 4.4.0 demo (propagazione)
HourWorld 3.5.1 demo (orologio mondiale)
Multimode 6.6 demo Black Cat Systems (UTEs)
TimePalette 6.3.1 demo (orologio mondiale)
-
(Android 4.1.1)
Daylight World Map (orologio mondiale)
(orari UTC)
+++ Ascoltata per la prima volta.
6320 20.04.2018 1935-1937 PIR R. ABU DHABI, EE, IDs OM e s/off. SF-BN LB
11735 18.04.2018 1800-1810 TZA ZANZIBAR BC, EE, nxs YL. BN LB
11830 20.04.2018 1852-1915 F R. NDARASON INT., Kanuri, ann. YL. SF LB +++
11950 22.04.2018 1600-1630 BUL AWR, Kostinbrod, EE, tk YL. SF
SEGNALE-SIGNAL
JBA - Portante-Carrier
IN - Insufficiente-Poor
SF - Sufficiente-Fair
BN - Buono-Good
MB - Molto Buono-Very Good
***
Luca Botto Fiora SWL I1-0799GE
QTH Rapallo (Genova) - Italia
G. C. 44° 21' 15.2" N / 9° 13' 37.8" E
***
RICEVITORI
R7 Drake (R7)
VR5000DSP Yaesu (VR)
PL-660 Tecsun (PL)
-
ANTENNE
Loop in ferrite di 75 cm ACA modificata per LW-VLF
-
Dipolo 16 metri
Balun su ferrite
-
ACCESSORI
(per loop MW-VLF)
Preamplificatore RF K0LR-WA1ION autocostruito (escludibile)
-
(per dipolo HF)
Eliminatore di QRM MFJ 1026 modificato W8JI (escludibile)
Preamplificatore RF kit LX1456 NE (escludibile)
Splitters 0-1000 MHz a 2 vie GBC
-
REGISTRATORI IC SONY:
ICD-BX800 (R7)
ICD-B500 (VR)
ICD-BX112 (PL)
***
SOFTWARE
(Mac OS X 10.6.8)
Audacity 2.2.0 (acquisizione-conversione audio)
DXToolbox 4.4.0 demo (propagazione)
HourWorld 3.5.1 demo (orologio mondiale)
Multimode 6.6 demo Black Cat Systems (UTEs)
TimePalette 6.3.1 demo (orologio mondiale)
-
(Android 4.1.1)
Daylight World Map (orologio mondiale)
Agenda DX 29/04/2018
ANNIVERSARIO EMITTENTE
BBC Radio Derby 1116 Khz (1971)
Deutsche Welle, Germania 6075 Khz (1924)
Radio Padilla, Bolivia 3476 Khz (1974)
WBAX, Wilkes-Barre 1240 Khz (1922)
WTVN, Ohio 610 Khz (1922)
BBC Radio Derby 1116 Khz (1971)
Deutsche Welle, Germania 6075 Khz (1924)
Radio Padilla, Bolivia 3476 Khz (1974)
WBAX, Wilkes-Barre 1240 Khz (1922)
WTVN, Ohio 610 Khz (1922)
sabato 28 aprile 2018
New VOA broadcast to Bangladesh
New VOA broadcast in English is to be added effective 29 April 2018 to Bangladesh.
1130-1200 UTC on 1575 kHz (MW-Thailand), 12020 (Thailand), 15715 and 17790 kHz (from Philippines)
W4HM Daily HF Radio Wave Propagation Forecast #2018-117
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 and
one of the few on the planet with advanced education and forecast
experience in both 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.
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
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.
#117 Issued Saturday April 28, 2018 at 1500 UTC
Important Solar, Space & Geomagnetic Weather Indices-
The daily solar flux index numbers (DSFI) were 70.4 68.7 69.5
There had been 2 days in a row with a 2000 UTC daily solar flux index number
(DSFI) less than 70.
The official daily sunspot number (DSSN) was 11. It could fall back to 0
once again in the next 24 hour period.
There had been 9 days in a row with a daily sunspot number (DSSN) greater
than 0.
In 2018 there had been 67 days with a daily sunspot number (DSSN) of 0.
Sunspot group #12706 was located near N03W39 with a simple alpha magnetic
signature capable of releasing a very small A class solar flares. It
continued to weaken and could weaken into a plage region in the next 24 hour
period.
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet to unsettled geomagnetic condition of 1 0 0 1 1 3 2 2.
The 24 hour period maximum and minimum solar wind speed ranged between 379 &
328 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition trend April 29, 2018- improving.
HF radio wave propagation condition trend April 30, 2018- improving.
HF radio wave propagation condition trend May 01, 2018- improving.
Northern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
Southern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
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 and
one of the few on the planet with advanced education and forecast
experience in both 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.
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
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.
#117 Issued Saturday April 28, 2018 at 1500 UTC
Important Solar, Space & Geomagnetic Weather Indices-
The daily solar flux index numbers (DSFI) were 70.4 68.7 69.5
There had been 2 days in a row with a 2000 UTC daily solar flux index number
(DSFI) less than 70.
The official daily sunspot number (DSSN) was 11. It could fall back to 0
once again in the next 24 hour period.
There had been 9 days in a row with a daily sunspot number (DSSN) greater
than 0.
In 2018 there had been 67 days with a daily sunspot number (DSSN) of 0.
Sunspot group #12706 was located near N03W39 with a simple alpha magnetic
signature capable of releasing a very small A class solar flares. It
continued to weaken and could weaken into a plage region in the next 24 hour
period.
The 24 hour period 3 hour interval planetary K index (Kp) had been at a
quiet to unsettled geomagnetic condition of 1 0 0 1 1 3 2 2.
The 24 hour period maximum and minimum solar wind speed ranged between 379 &
328 km/s.
Global Daily HF Radio Wave Propagation Forecast-
HF radio wave propagation condition trend April 29, 2018- improving.
HF radio wave propagation condition trend April 30, 2018- improving.
HF radio wave propagation condition trend May 01, 2018- improving.
Northern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
Southern Hemisphere Radio Wave Propagation Forecast g-
We are firmly in the fall/spring equinox type of HF radio wave propagation
conditions. Globally HF radio wave propagation conditions are most evenly
balanced across the equator during the fall and spring equinox.
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- S1-3 at
night and S8-9 at day,
21000-21850 kHz- S0 at night and S4-7 at day,
24890-24990, 25600-26100 kHz- S0 at night and S1-3 at day,
28000-29700 kHz- S0 at night and S0-1 at day.
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.
SWLDXBulgaria News, April 27-28
ETHIOPIA Reception of Radio Deegaanka Soomaalida Itoobiya on April 27:
from 1902 on 5940 JJG 100 kW / non-dir to EaAf Somali, fair/good signal
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-radio-deegaanka-soomaalida_28.html
GERMANY(non) Reception of Voice of Oromo Liberation via MBR Nauen, April 27
1700-1730 on 15420 NAU 100 kW / 144 deg to EaAf Afar Oromo Wed/Fri/Sun, good:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-voice-of-oromo-liberation_28.html
GERMANY(non) Reception of World of Radio via HLR on 6190 CUSB, April 28
0631-0700 on 6190 GOH 001 kW / 230 deg to CeEu English Sat, fair to good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-of-radio-via-hlr-on_28.html
GERMANY(non) New time of Radio Waves International via Channel 292, April 28
0800-0900 on 6070 ROB 025 kW / non-dir to CeEu French Sat, good, ex 0700-0800
0600-0700 on 6070 ROB 025 kW / non-dir to CeEu French Sat new time from May 5
Fair signal of From the Isle of Music via Channel 292 on April 28
1200-1300 on 6070 ROB 025 kW / non-dir to CeEu English/Spanish Sat
http://swldxbulgaria.blogspot.bg/2018/04/new-time-of-radio-waves-international.html
GERMANY Reception of EMG and MWF via MBR Nauen on April 28
Evangelische Missions Gemeinden EMG
1030-1100 on 6055 NAU 125 kW / 222 deg to CeEu German Sat/Sun, good signal
Missionswerk Friedensstimme MWF
1200-1230 on 13710*NAU 250 kW / 060 deg to FERu Russian Sat, good signal
* co-ch same 13710 EMR 500 kW / 095 deg to SoAs Urdu TRT Voice of Turkey
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-emg-and-mwf-via-mbr-nauen_28.html
GERMANY(non) DW Bundesliga via MBR Issoudun & BAB Ascension, April 28
1325-1530 on 15195 ISS 500 kW / 170 deg to WeAf Hausa Sat, fair/good
1325-1530 on 17840 ASC 250 kW / 065 deg to WeAf Hausa Sat, fairgood
http://swldxbulgaria.blogspot.bg/2018/04/dw-bundesliga-via-mbr-issoudun-bab_28.html
GERMANY(non) Bible Voice Broadcasting via MBR Issoudun, April 28
1430-1500 on 15265 ISS 250 kW / 083 deg to SoAs English Sat, fair
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-bible-voice-broadcasting_28.html
GUAM Fair signal of AWR KSDA Voice of Hope on April 28
1100-1130 on 12090 SDA 100 kW / 345 deg to FERu Russian:
http://swldxbulgaria.blogspot.bg/2018/04/fair-signal-of-awr-ksda-voice-of-hope.html
GUAM Reception of KTWR Trans World Radio Asia in English on April 28
1128-1158 on 9910 TWR 200 kW / 350 deg to EaAs Jap/Eng Sat, weak to fair
1230-1300 on 12160 TWR 100 kW / 290 deg to SoAs English Sat, fair, QRM RTTY
1317-1346 on 7510 TWR 100 kW / 320 deg to EaAs English Sat, good signal
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-ktwr-trans-world-radio_28.html
NIGERIA(non) Radio(Ndarason)International & Radio Dandal Kura Int, April 27
from 1800 on 12050 ASC 250 kW / 065 deg to WeAf French Radio International???
from 1803 on 11830 ISS 100 kW / 167 deg to CeAf Kanuri Radio Dandal Kura Int.
http://swldxbulgaria.blogspot.bg/2018/04/radiondarasoninternational-radio-dandal.html
ROMANIA(non) Reception of IRRS Radio City via ROU RadioCom, April 28
0800-0900 on 9510 SAF 100 kW / 300 deg to WeEu German Sat, weak/fair.
* co-ch same 9510 URU 050 kW / non-dir to EaAs Mongolian PBS Xinjiang
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-irrs-radio-city-via-rou_28.html
TAJIKISTAN Fair signal of Voice of Tajik on April 28:
1300-1400 on 7245 DB 100 kW / non-dir to CeAs English
http://swldxbulgaria.blogspot.bg/2018/04/fair-signal-of-voice-of-tajik-in.html
U.K.(non) BBC via Secretbrod, Al-Dhabayya and Ascension, April 27
1730-1830 on 9545 SCB 100 kW / 195 deg to EaAf Amh/Oro/Tig Mon-Fri
1730-1830 on 11850 DHA 250 kW / 230 deg to EaAf Amh/Oro/Tig Mon-Fri
1730-1830 on 17745 ASC 250 kW / 070 deg to EaAf Amh/Oro/Tig Mon-Fri
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-bbc-via-secretbrod-al.html
U.K.(non) BBC Sport via BaBcoCk Ascension/Meyerton/Al-Dhabayya, April 28
1100-1600 on 17780 ASC 250 kW / 065 deg to WeAf Hausa Sat Premier League
1130-1600 on 15420 MEY 250 kW / 032 deg to EaAf Somali Sat Premier League
1130-1600 on 17745 DHA 250 kW / 225 deg to EaAf Somali Sat Premier League
http://swldxbulgaria.blogspot.bg/2018/04/bbc-sport-via-babcock.html
USA Reception of World Wide Christian Radio WWCR-2 and WINB on April 27:
from 1900 on 12160 WCR 100 kW / 085 deg to CeAf English WWCR-2, good signal
from 2000 on 9265 INB 050 kW / 242 deg to MEXI English WINB, weak to fiar:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-wide-christian-radio_28.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
from 1902 on 5940 JJG 100 kW / non-dir to EaAf Somali, fair/good signal
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-radio-deegaanka-soomaalida_28.html
GERMANY(non) Reception of Voice of Oromo Liberation via MBR Nauen, April 27
1700-1730 on 15420 NAU 100 kW / 144 deg to EaAf Afar Oromo Wed/Fri/Sun, good:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-voice-of-oromo-liberation_28.html
GERMANY(non) Reception of World of Radio via HLR on 6190 CUSB, April 28
0631-0700 on 6190 GOH 001 kW / 230 deg to CeEu English Sat, fair to good
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-of-radio-via-hlr-on_28.html
GERMANY(non) New time of Radio Waves International via Channel 292, April 28
0800-0900 on 6070 ROB 025 kW / non-dir to CeEu French Sat, good, ex 0700-0800
0600-0700 on 6070 ROB 025 kW / non-dir to CeEu French Sat new time from May 5
Fair signal of From the Isle of Music via Channel 292 on April 28
1200-1300 on 6070 ROB 025 kW / non-dir to CeEu English/Spanish Sat
http://swldxbulgaria.blogspot.bg/2018/04/new-time-of-radio-waves-international.html
GERMANY Reception of EMG and MWF via MBR Nauen on April 28
Evangelische Missions Gemeinden EMG
1030-1100 on 6055 NAU 125 kW / 222 deg to CeEu German Sat/Sun, good signal
Missionswerk Friedensstimme MWF
1200-1230 on 13710*NAU 250 kW / 060 deg to FERu Russian Sat, good signal
* co-ch same 13710 EMR 500 kW / 095 deg to SoAs Urdu TRT Voice of Turkey
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-emg-and-mwf-via-mbr-nauen_28.html
GERMANY(non) DW Bundesliga via MBR Issoudun & BAB Ascension, April 28
1325-1530 on 15195 ISS 500 kW / 170 deg to WeAf Hausa Sat, fair/good
1325-1530 on 17840 ASC 250 kW / 065 deg to WeAf Hausa Sat, fairgood
http://swldxbulgaria.blogspot.bg/2018/04/dw-bundesliga-via-mbr-issoudun-bab_28.html
GERMANY(non) Bible Voice Broadcasting via MBR Issoudun, April 28
1430-1500 on 15265 ISS 250 kW / 083 deg to SoAs English Sat, fair
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-bible-voice-broadcasting_28.html
GUAM Fair signal of AWR KSDA Voice of Hope on April 28
1100-1130 on 12090 SDA 100 kW / 345 deg to FERu Russian:
http://swldxbulgaria.blogspot.bg/2018/04/fair-signal-of-awr-ksda-voice-of-hope.html
GUAM Reception of KTWR Trans World Radio Asia in English on April 28
1128-1158 on 9910 TWR 200 kW / 350 deg to EaAs Jap/Eng Sat, weak to fair
1230-1300 on 12160 TWR 100 kW / 290 deg to SoAs English Sat, fair, QRM RTTY
1317-1346 on 7510 TWR 100 kW / 320 deg to EaAs English Sat, good signal
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-ktwr-trans-world-radio_28.html
NIGERIA(non) Radio(Ndarason)International & Radio Dandal Kura Int, April 27
from 1800 on 12050 ASC 250 kW / 065 deg to WeAf French Radio International???
from 1803 on 11830 ISS 100 kW / 167 deg to CeAf Kanuri Radio Dandal Kura Int.
http://swldxbulgaria.blogspot.bg/2018/04/radiondarasoninternational-radio-dandal.html
ROMANIA(non) Reception of IRRS Radio City via ROU RadioCom, April 28
0800-0900 on 9510 SAF 100 kW / 300 deg to WeEu German Sat, weak/fair.
* co-ch same 9510 URU 050 kW / non-dir to EaAs Mongolian PBS Xinjiang
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-irrs-radio-city-via-rou_28.html
TAJIKISTAN Fair signal of Voice of Tajik on April 28:
1300-1400 on 7245 DB 100 kW / non-dir to CeAs English
http://swldxbulgaria.blogspot.bg/2018/04/fair-signal-of-voice-of-tajik-in.html
U.K.(non) BBC via Secretbrod, Al-Dhabayya and Ascension, April 27
1730-1830 on 9545 SCB 100 kW / 195 deg to EaAf Amh/Oro/Tig Mon-Fri
1730-1830 on 11850 DHA 250 kW / 230 deg to EaAf Amh/Oro/Tig Mon-Fri
1730-1830 on 17745 ASC 250 kW / 070 deg to EaAf Amh/Oro/Tig Mon-Fri
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-bbc-via-secretbrod-al.html
U.K.(non) BBC Sport via BaBcoCk Ascension/Meyerton/Al-Dhabayya, April 28
1100-1600 on 17780 ASC 250 kW / 065 deg to WeAf Hausa Sat Premier League
1130-1600 on 15420 MEY 250 kW / 032 deg to EaAf Somali Sat Premier League
1130-1600 on 17745 DHA 250 kW / 225 deg to EaAf Somali Sat Premier League
http://swldxbulgaria.blogspot.bg/2018/04/bbc-sport-via-babcock.html
USA Reception of World Wide Christian Radio WWCR-2 and WINB on April 27:
from 1900 on 12160 WCR 100 kW / 085 deg to CeAf English WWCR-2, good signal
from 2000 on 9265 INB 050 kW / 242 deg to MEXI English WINB, weak to fiar:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-wide-christian-radio_28.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
The Mighty KBC new frequency
On May 6, 0000-0200 UTC, the new North America frequency for The Mighty KBC will be 9925 kHz
Propagation de K7RA
SB PROP @ ARL $ARLP017
ARLP017 Propagation de
K7RA
ZCZC AP17
QST de W1AW
Propagation Forecast
Bulletin 17 ARLP017
From Tad Cook,
K7RA
Seattle, WA April 27,
2018
To all radio amateurs
SB PROP ARL
ARLP017
ARLP017 Propagation de
K7RA
Solar activity increased
over the past week, with average daily
sunspot numbers up from
5.4 to 20 and average daily solar flux
rallying from 69.9 to
73.4. The previous week saw four days with no
sunspots, and the recent
week had sunspots on every day. New sunspot
groups emerged on April 19 and 21.
Predicted solar flux is 69 on April 27-29, 68 on April 30
through
May 3, 70 on May 4-16, 75 on May 17-29, 70 on May 30 through
June
10.
Predicted planetary A index is 12 on April 27, 5 on April 28
through
May 5, then 10, 15, 12, 10 and 8 on May 6-10, 5 on May 11-16,
then
42, 12 and 8 on May 17-19,
5 on May 20-22, then 8 and 12 on May
23-24, 5 on May 25 through June 1, then 10, 15, 12, 10 and 8 on
June
2-6, then 5 on June 7-10.
Geomagnetic activity
forecast for the period April 27 to May 22,
2018 from F.K. Janda, OK1HH of the Czech Propagation Interest
Group.
"Geomagnetic field will be:
Quiet on April
30
Mostly quiet on April 28, May 3, 14, 16, 21-22
Quiet to unsettled on April 27, 29, May 1, 4, 8, 11-13,
19-20
Quiet to active on May 2,
5, 9-10, 15, (18)
Active to disturbed on May 6-7, 17
"Solar wind will intensify on April (27-29), May (2,) 5-7,
(8-11,)
17-18, (19-20).
"Remarks:
- Parenthesis means lower
probability of activity enhancement.
- With regard to ongoing changes, current forecasts are less
reliable
again."
Interesting videos with
general information on sunspots and solar
flares:
From the same source, multiple detailed images per day of the
Sun
viewed at different wavelengths:
Dr. Tamitha Skov will probably release a new space weather
video
after this bulletin is
sent to ARRL HQ for distribution. This is
probably a good place to check for her latest report:
If you would like to make a comment or have a tip for our
readers,
email the author at, k7ra@arrl.net
.
For more information
concerning radio propagation, see the ARRL
Technical Information Service web page at,
http://arrl.org/propagation-of-rf-signals. For an explanation
of
numbers used in this
bulletin, see
http://arrl.org/the-sun-the-earth-the-ionosphere.
An archive of past propagation bulletins is at
information and tutorials on propagation are at
http://k9la.us/.
Monthly propagation charts between four USA regions and
twelve
overseas locations are at http://arrl.org/propagation.
Instructions for starting or ending email distribution of
ARRL
bulletins are bat http://arrl.org/bulletins.
Sunspot numbers for April 19 through 25, 2018 were 14, 14, 34,
20,
22, 19, and 17, with a
mean of 20. 10.7 cm flux was 70.8, 73, 76.8,
75.7, 73.9, 72.9, and
70.8, with a mean of 73.4. Estimated planetary
A indices were 3, 47, 12, 5, 6, 5, and 5, with a mean of
11.9.
Estimated mid-latitude A
indices were 2, 29, 10, 5, 6, 4, and 4,
with a mean of
8.6.
NNNN
/EX
Additional BBC WS transmission and freqs
From today (27 April) BBC is introducing an additional World Service transmission to South Asia at 1200-1300 UTC on 12065 and 15310 kHz (both are from A'Seela).
Also from today additional frequencies are available at 0000-0100 UTC on 7290 kHz and 0100-0200 UTC on 9410 kHz (both are from Tashkent) and also at 1300-1400 UTC on 12065 kHz (from Singapore).
Glenn Hauser logs April 27-28, 2018
** ALBANIA [non]. 9395, April 28 at 0221 tune-by, R. Tirana ID, music, reconfirmed via WRMI the 0200 UT Tue-Sun broadcast. The revamped skedgrid now shows R. Tirana relay in English also remains at 2300 on 5850, but Fridays alone, which is the only DOW it starts early any more at 2230; I have kept missing a confirmation check of that (Glenn Hauser, OK, DX LISTENING DIGEST)
** CHINA. 9155, April 27 at 1335, CNR1 about S8, presumed the Chinese like on several 49mb frequencies, as jammer to Sound of Hope, which Aoki/NDXC shows on precisely ``9155.071 0000-2400 TWN * SOH Xi Wang Zhi Sheng Chi ? 1-7`` That was where Wolfgang Büschel once measured it, but the * stands for the on-frequency CNR1 jamming (Glenn Hauser, OK, DX LISTENING DIGEST)
** NIGERIA. 7255-, April 27 at 0609 check, VON is AWOL (Glenn Hauser, OK, DX LISTENING DIGEST)
** NORTH AMERICA. 6930-USB, April 28 at 0235, S9 to +10 peaks, electronic music, then talkover repeatedly about ``young people``, voice rather like DGS, off at 0240*. Several logs here, all unID too:
https://www.hfunderground.com/board/index.php/topic,42106.0.html
(Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 7296-USB, April 28 at 0234 quick check finds the USB hams are back, including KJ5GT (not KJ5GD as I wrote a trinight ago) (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. WORLD OF RADIO 1927 monitoring: missing again Friday April 27 at 2331 on WBCQ 9330v-CUSB --- still TOMBS in music bit. Next:
Sat 0629 HLR 6190-CUSB to WSW [to resume April 28]
Sat 1431 HLR 6190-CUSB to WSW [to resume April 28]
Sat 1930v WA0RCR 1860-AM ND
Sat 2130 WBCQ 9330v-CUSB to WSW [maybe]
Sat 2300 WRMI 7780 to NE [not last two weeks; canceled?]
Sun 0200 WRMI 7780 to NE
Sun 0310v WA0RCR 1860-AM ND
Sun 1030 HLR 9485-CUSB to WSW [to resume April 29]
Sun 1900 WRMI 9395 to NNW [NEW]
Sun 2330 WBCQ 9330v-CUSB to WSW [maybe]
Mon 0130 WRMI 5850 to NW, 5950 to S [? not last week], 7780 to NE
Mon 0300v WBCQ 5130v Area 51 to WSW
Mon 0330 WRMI 9955 to SSE
Mon 0400 WRMI webcast only
Mon 2330 WBCQ 9330v-CUSB to WSW [maybe]
Tue 0030 WRMI 7730 to WNW
Tue 2030 WRMI 7780 to NE, 9455 to WNW [or #1928?]
Tue 2130 WRMI 7780 to NE, 9455 to WNW [or #1928?]
Full WOR sked on all outlets, podcast access:
http://www.worldofradio.com/radioskd.html
(Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 7730, April 28 at 0225, this WRMI is off, contrary to new sked showing until 0400 with TOMBS, which is still running on 7570 (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. (7490), April 28 at 0009, WBCQ webcast without AW again, instead sounds like J P Ferraro (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 5890, April 28 at 0243, this WWCR in an active hour, one of few left on air without BS, and just as I tune in, other gospel huxter mentions ``all the buzz`` --- which is really apropos, as his audio at S9+30 has a big buzz with it! Rather than a WWCR imposition, I think, but this means the 5980 leapfrog over 5935 PMS another 45 kHz beyond is also active at S7. His sermon topic has something to do with chickens (Glenn Hauser, OK, DX LISTENING DIGEST)
** U S A. 1130, April 27 circa 1900 UT, KLEY Wellington KS, brief recording off the caradio showing the talking carrier cutting on and off beside the rapid click-click. Disregard too much background line noise along most Enid streets; will try again if I find a quiet spot:
http://www.w4uvh.net/KLEY1130SNAFU2.mp3
(Glenn Hauser, OK, DX LISTENING DIGEST)
UNIDENTIFIED. 4150-USB, April 28 at 0257, 2-way sounds like Russian, unfortunately semiblocked by a local device blob. Could be legit ship comms; 2002 Klingenfuss guidebook showed 4149-SSB as a worldwide simplex ship frequency, among many others nearby on band, but not 4150 (Glenn Hauser, OK, DX LISTENING DIGEST)
This report dispatched at 0518 UT April 28
Agenda DX 28/04/2018
ANNIVERSARIO EMITTENTI
Radio Universidare, Santa Maria, Brasile 800 Khz (1968)
Radio Clube Paranaense in SW, Brasile 11935 Khz (1954)
WSAR, North Carolina 1480 Khz (1948)
WOI, Ames 640 Khz (1922)
Radio Universidare, Santa Maria, Brasile 800 Khz (1968)
Radio Clube Paranaense in SW, Brasile 11935 Khz (1954)
WSAR, North Carolina 1480 Khz (1948)
WOI, Ames 640 Khz (1922)
venerdì 27 aprile 2018
SWLDXBulgaria News, April 26-27
GERMANY Weak signal of DWD Deutscher Wetterdienst, April 27:
1200-1228 on 5905 PIN 010 kW / non-dir to CeEu German AM mode
1200-1228 on 6180 PIN 010 kW / non-dir to CeEu German AM mode
http://swldxbulgaria.blogspot.bg/2018/04/weak-signal-of-dwd-deutscher_27.html
GREECE Reception of Voice of Greece on 9420 kHz, April 27
0651&0655 on 9420 AVL 150 kW / 323 deg to WeEu Ar/Se tx#3
Same time on 9935 AVL 100 kW / 285 deg via tx#1-no signal
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-voice-of-greece-on-9420_27.html
OMAN Very good signal of Radio Sultanate of Oman on April 27
1404/1535 on 15140 THU 100 kW / 315 deg to WeEu English/Arabic
http://swldxbulgaria.blogspot.bg/2018/04/very-good-signal-of-radio-sultanate-of.html
PALAU(non) Reception of BRB Radio Que Me via T8WH Angel 3, April 27
1200-1230 on 9930 HBN 100 kW / 318 deg to EaAs Vietnamese Fri, weak:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-brb-radio-que-me-via-t8wh_27.html
PHILIPPINES Much odd frequencies of FEBC Radio, April 27
1300-1330 on 11825.6 BOC 100 kW / 305 deg to CeAs Tibetan
1330-1400 on 9465.6 BOC 100 kW / 305 deg to CeAs Yunnan
1400-1430 on 11750.6 BOC 100 kW / 305 deg to SEAs Lahu
http://swldxbulgaria.blogspot.bg/2018/04/much-odd-frequencies-of-febc-radio.html
SAUDI ARABIA Radio Riyadh Holy Quran again on 7410/13780 kHz on April 27
from 0530 on 7410 JED or RIY / unknown to N/ME Arabic, plus other carrier
// frequency 9715 RIY 100 kW / non-dir to N/ME Arabic
// frequency 15170 RIY 500 kW / 310 deg to N/ME Arabic
// frequency 17895 RIY 500 kW / 040 deg to CeAs Arabic
from 1130 on 13780 RIY 500 kW / 310 deg to N/ME Arabic, instead of 11935
Radio Saudi International in Urdu vs VIRI IRIB in Arabic on April 27:
1200-1300 on 13775 RIY 500 kW / 070 deg to SoAs Urdu as scheduled A18
from 1300 on 13785*RIY 500 kW / 070 deg to SoAs Urdu instead of 13775
* co-ch same 13785 SIR 500 kW / 216 deg to N/ME Arabic VIRI PARS TODAY
http://swldxbulgaria.blogspot.bg/2018/04/radio-riyadh-holy-quran-again-on.html
SRI LANKA Reception of Sri Lanka Broadcasting Corporation, April 26
1630-1730 on 11750 TRM 125 kW / 345 deg to N/ME Sinhala City FM, good
1700-1800 on 11835 TRM 125 kW / 345 deg to SoAs Tamil, fair to good:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-sri-lanka-broadcasting_27.html
U.K.(non) Very good signal of FEBA Radio via BaBcoCk Yerevan, April 26
1600-1630 on 12125 ERV 300 kW / 192 deg to EaAf Guragena Mon-Wed
1600-1630 on 12125 ERV 300 kW / 192 deg to EaAf Amharic Thu-Sun
1630-1700 on 12125 ERV 300 kW / 192 deg to EaAf Amharic Daily
http://swldxbulgaria.blogspot.bg/2018/04/very-good-signal-of-feba-radio-via.html
U.K.(non) Radio Ranginkaman/Radio Rainbow via BaBcoCk Tashkent, April 23:
1600-1630 on 7580 TAC 100 kW / 236 deg to WeAs Farsi Mon/Fri, fair to good
http://swldxbulgaria.blogspot.bg/2018/04/radio-ranginkamanradio-rainbow-via_27.html
USA Reception of World Harvest Radio International WHRI Angel 2 on April 27:
0500-0515 on 9825 HRI 250 kW / 047 deg to WeEu English Fri, instead of French
0515-0600 on 9825 HRI 250 kW / 047 deg to WeEu English Fri, as scheduled A-18
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-harvest-radio_27.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
1200-1228 on 5905 PIN 010 kW / non-dir to CeEu German AM mode
1200-1228 on 6180 PIN 010 kW / non-dir to CeEu German AM mode
http://swldxbulgaria.blogspot.bg/2018/04/weak-signal-of-dwd-deutscher_27.html
GREECE Reception of Voice of Greece on 9420 kHz, April 27
0651&0655 on 9420 AVL 150 kW / 323 deg to WeEu Ar/Se tx#3
Same time on 9935 AVL 100 kW / 285 deg via tx#1-no signal
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-voice-of-greece-on-9420_27.html
OMAN Very good signal of Radio Sultanate of Oman on April 27
1404/1535 on 15140 THU 100 kW / 315 deg to WeEu English/Arabic
http://swldxbulgaria.blogspot.bg/2018/04/very-good-signal-of-radio-sultanate-of.html
PALAU(non) Reception of BRB Radio Que Me via T8WH Angel 3, April 27
1200-1230 on 9930 HBN 100 kW / 318 deg to EaAs Vietnamese Fri, weak:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-brb-radio-que-me-via-t8wh_27.html
PHILIPPINES Much odd frequencies of FEBC Radio, April 27
1300-1330 on 11825.6 BOC 100 kW / 305 deg to CeAs Tibetan
1330-1400 on 9465.6 BOC 100 kW / 305 deg to CeAs Yunnan
1400-1430 on 11750.6 BOC 100 kW / 305 deg to SEAs Lahu
http://swldxbulgaria.blogspot.bg/2018/04/much-odd-frequencies-of-febc-radio.html
SAUDI ARABIA Radio Riyadh Holy Quran again on 7410/13780 kHz on April 27
from 0530 on 7410 JED or RIY / unknown to N/ME Arabic, plus other carrier
// frequency 9715 RIY 100 kW / non-dir to N/ME Arabic
// frequency 15170 RIY 500 kW / 310 deg to N/ME Arabic
// frequency 17895 RIY 500 kW / 040 deg to CeAs Arabic
from 1130 on 13780 RIY 500 kW / 310 deg to N/ME Arabic, instead of 11935
Radio Saudi International in Urdu vs VIRI IRIB in Arabic on April 27:
1200-1300 on 13775 RIY 500 kW / 070 deg to SoAs Urdu as scheduled A18
from 1300 on 13785*RIY 500 kW / 070 deg to SoAs Urdu instead of 13775
* co-ch same 13785 SIR 500 kW / 216 deg to N/ME Arabic VIRI PARS TODAY
http://swldxbulgaria.blogspot.bg/2018/04/radio-riyadh-holy-quran-again-on.html
SRI LANKA Reception of Sri Lanka Broadcasting Corporation, April 26
1630-1730 on 11750 TRM 125 kW / 345 deg to N/ME Sinhala City FM, good
1700-1800 on 11835 TRM 125 kW / 345 deg to SoAs Tamil, fair to good:
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-sri-lanka-broadcasting_27.html
U.K.(non) Very good signal of FEBA Radio via BaBcoCk Yerevan, April 26
1600-1630 on 12125 ERV 300 kW / 192 deg to EaAf Guragena Mon-Wed
1600-1630 on 12125 ERV 300 kW / 192 deg to EaAf Amharic Thu-Sun
1630-1700 on 12125 ERV 300 kW / 192 deg to EaAf Amharic Daily
http://swldxbulgaria.blogspot.bg/2018/04/very-good-signal-of-feba-radio-via.html
U.K.(non) Radio Ranginkaman/Radio Rainbow via BaBcoCk Tashkent, April 23:
1600-1630 on 7580 TAC 100 kW / 236 deg to WeAs Farsi Mon/Fri, fair to good
http://swldxbulgaria.blogspot.bg/2018/04/radio-ranginkamanradio-rainbow-via_27.html
USA Reception of World Harvest Radio International WHRI Angel 2 on April 27:
0500-0515 on 9825 HRI 250 kW / 047 deg to WeEu English Fri, instead of French
0515-0600 on 9825 HRI 250 kW / 047 deg to WeEu English Fri, as scheduled A-18
http://swldxbulgaria.blogspot.bg/2018/04/reception-of-world-harvest-radio_27.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