Dear Bob and Group,
Having listened to the band between 160 and 190KHz this evening
at around 1900 utc I confirm AM stations audible on 162 French
speaking, 171 Arabic? and 183 French speaking from this location.
Spectrogram shows the overlap region 166 to 167+ as maybe possible
also from below 176 to 178. 172 does not seem too bad in spite of
the carrier on 171. Hope to listen again tomorrow morning.
73, Brian
At 15:34 09/08/01 +0000, you wrote:
Dear Bob, LF Group
As I think I mentioned a while back, there is a quiet-ish segment in
the LF broadcast band, some hundreds of Hz wide centred on
about 172.0kHz. The sidebands of the adjacent broadcast stations
leak into it if they are carrying high-pitched programme material, but
most of the time during darkness the noise floor seems to be QRN,
at my location at least. This certainly seemed to be the quietest
frequency in the 165 - 190kHz range.
Are there any strong signals in roughly this part of the spectrum
emanating from the VK/ ZL region that we could try to receive here
in Europe, as CFH and DBF39, etc, have been used over the trans-
atlantic path? This would give some sort of handle on the signal
levels and optimum time of day for a ZL > Eu attempt. I guess this
would be easier to do in the other direction - the Eu LF broadcast
stations are not exactly low-power, and operate continuously, so
should be a relatively easy target for reception in ZL.
Cheers, Jim Moritz
73 de M0BMU
73 Brian CT1DRP IN51QD 41 09 58N 08 39 11W
http://homepage.esoterica.pt/~brian
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