Listeners are campaigning to save a
long wave radio station from closure, but the management are adamant it will
close.
RTÉ Radio 1 is the general
information and entertainment service of the Irish Republic’s public service
broadcaster. UK listeners can currently hear the station on internet, Freesat
(satellite radio) and 252 kHz long wave.
The main subject of our story – the
long wave station at Clarkstown, Ireland – became the replacement for the much
missed medium wave station at Athlone. RTÉ hoped the long wave signal would
better reach the Irish diaspora as far as London to help them keep in touch with
home.
A long wave service can cover
distances of over 500 to 1,000 miles in daylight, and even further at night.
Many European nations have citizens working and living in other European
countries, who want to stay in touch with home. There are extensive seagoing
industries — fishing, shipping, oil — and the LW signals warn them of storms
coming. These days satellite communications are widely used and the LW
broadcasts are less important.
The drawbacks of LW are that large
antenna systems are needed, which take up a lot of space; high power is needed
to produce a very strong ground wave for daytime reception; and only a limited
number of stations can be fitted into the band, so they must all share
frequencies and take steps to avoid interfering with each other.
Over the years radios coming onto
the market in Europe frequently do not include the long wave band.
The LW station in Ireland was set
up in 1989 as a commercial radio station called Atlantic 252, broadcasting rock
music to the UK. It established a loyal audience, but could not compete with the
UK’s established network of commercial local radio stations, and made a loss. It
closed in 2002.
RTÉ saw the chance to acquire a
long wave station — a long held ambition — and snapped it up. A period of
re-engineering followed to improve the facility. The service quickly built up an
audience in the UK, appealing to English as well as the diaspora. There were
still reception issues.
The distance between Dublin and
London is around 300 miles. In London, RTÉ began to suffer co-channel
interference from the other user of 252 kHz: Tipaza, Algeria, some 1,000 miles
from London.
Tipaza beams Chaine 1 to the
Algerian diaspora in France. The transmitter was quite ancient and began to
drift from the nominal frequency. The staff at Tipaza did their best to keep
their station operating and on frequency.
Listeners in London and eastern
England began to hear the morning call to prayer and other items from Chaine 1
clearly under RTÉ.
Then Tipaza failed completely and
went off the air for months. A German transmitter company was awarded the
contract to replace Algeria’s entire public broadcasting system. When Tipaza
returned to the air, the signal was stronger and the co-channel interference
moved closer to Dublin.
The usual methods of reducing
co-channel interference were perfected by the FCC for the US’ AM band. They
include using directional aerials, and cutting the power at night. Unfortunately
those methods are not as effective on LW as they are on MW.
Ireland’s economy deteriorated and
RTÉ’s finances were affected. In 2014 RTÉ announced they would close the LW
station in a few weeks, saying it was obsolete and closure would save 250,000
euros (around US $280,000).
The listeners were having none of
it. A huge outcry ensued which won them a stay of execution while other methods
of reaching the diaspora were investigated. Somewhat miffed at having their
plans thwarted, RTÉ reduced the power, badly affecting reception.
Then RTÉ joined a consortium to bid
for the second UK national DAB digital radio multiplex. That would have given
RTÉ national coverage in the UK.
Alas, the other bidders won and RTÉ
is not included on the implemented multiplex.
There is a saying that the
opera is not over until the lady sings. The campaign to save RTÉ on 252
continues; the Suits are insisting the switch will be pulled in 2017 — but the
lady who sings, Madame Godot, has not yet arrived at the stage door.
Hopefully, as usual, she
won’t.
(Radiosurvivor)
