[Lf] LF: CFH on 137.00

[Andre' Kesteloot]

Larry Kayser wrote:

> Marco
>
> >At my QTH in Nort Italy CFH was about 15 dB over noise on Spectrogram
> >at 10 Hz resolution, around 0200z of March 3.
> >Is the frequency almost exactly 137.00 ?
>
> Yes, CFH is exactly centered on 137.000 kHz.  The pseudo random noise
> modulation has no carrier and there is nothing marking the center of the
> occupied spectrum so it is necessary to look at the power spectrum and find
> the middle which will always be 137.000 kHz.  CFH does on occasion send
> other modulation methods, in the last three months I have heard a FAX
> transmission on the frequency as well as at least one FSK session as well.
>
> Larry
> VA3LK