Von: BueschelW@web.de im Auftrag von Wolfgang Bueschel ...

NETH ANTILLES [Bonaire] Frequency change of Deutsche Welle in German
from Jan 1:
0800-1000 NF 9785 BON 250 kW 230 deg to AUS/NZ, ex 9885*
*to avoid Voice of Islamic Republic of Iran in Arabic from 0830 UT.
(R BULGARIA DX MIX News, Ivo Ivanov, via wwdxc BC-DX TopNews Jan 4)
[* rather interference by CNR CRI Beijing in Mandarin on adjacent 9880 kHz
at 0800-0900 UT, according of mail from downunder New Zealand.
And 9785 channel suffer by severe interference of DRM mode REE Noblejas,
and CNR Xining-CHN next door 9780 kHz too. wb, wwdxc BC-DX TopNews Jan 4]
9785 -- The reason DW changed from 9885 to 9785 kHz is that 9885 kHz was
suffering severe interference from China National Radio on 9880 kHz in the
period 0800-0900 UT. At times DW could not be heard. It was not providing
stable and good reception in some of the primary reception zones, that's
why it was changed.
Unfortunately the move to 9785 kHz appears not to be a good one as the DRM
transmission of REE Spain on 9780 kHz is causing QRM from 0800 UT, at
least in New Zealand, which is the antipodes of Spain. Every transmission
from REE ends up here. We used to get good reception during the Cold War
of RFE and Radio Liberty from Spain and Portugal for that reason. The DRM
transmission is scheduled to end at 0900 UT, but yesterday (2 Jan) it had
finished before 0900 UT, I'm not sure exactly when. The move from 9885 kHz
to 9785 kHz was initiated by DW Frequency Management, not RNW who operate
on the frequencies specified by their client.
So that's the background to the DW move!
(Gordon Brown-NZL, NWDXC Jan 3)
NEW ZEALAND [and non] Recent DX from Northland, New Zealand.
FM DX has been my focus in recent weeks with best catches being CRI
Vanuatu relay on 102.0 MHz, stations from Emerald Queensland and some new
stations from New Caledonia and Fiji. But shortwave has also produced some
good catches.
Glenn Hauser wrote: "I suppose some manufacturer long ago was making SW
transmitters of this power, and also sold a couple to Radio New Zealand,
which was their rating until the 50 / 100 kW units at Rangitaiki went in."
The 2 x 7.5 kW transmitters that were the foundation of Radio New
Zealand's shortwave voice from 1948 until 1990 were built by Amalgamated
Wireless (Australasia) Ltd in 1945-46, and I believe were originally
intended to be used by the US Foreces bases here during World War 2.
A 1976 leaflet from RNZ said "they are manually tuned and capable of
operating on any frequency from 6 MHz to 22 MHz. Each transmitter has an
operating power of 7.5 kW. High level modulation is employed, the
modulated amplifier and the modulator each using two BR170 valves."
(Bryan Clark, Mangawhai-NZL, dxld Jan 4)
Such 7.5 kW units were still visible on Ekala site at Ceylon in 1972 and
at my Malaysia, Indonesia, Bali tour in 1977, at Tebrau (BBC Far East
relay) close to new site now at Singapore Kranji, were they moved in 1979?
file:///E|/datentransfer/wwdfxc_2010/BCDX946.TXT[06.01.2011 12:38:01]