LF: transatlantic tests

Andre' Kesteloot akestelo@bellatlantic.net
Tue, 12 Jan 1999 17:29:42 -0500

Thanks Toni,
we will be looking (literally) for your signal.
Toni Baertschi wrote:

> >From HB9ASB, JN36pt
> As proposed by Peter, G3LDO, I will transmit on 137.790 +/- 1 Hz (sorry
> I have no
> Caesium Standard, I'm using a Chardonnay Standard instead, Hi)
> Sunday morning from 04:00 to 05:00 UT in Slow CW and I will repeat only
> "ASB".
> LF transatlantic tests early in this century have shown that highest
> signal levels are reached in the early morning hours, a couple of hours
> "away" from the sunrise/sunset.
> Worst periods are dawn and dusk with deep QSB.
> The differences in signal levels on a transatlantic path are high -
> several 10dB's (found in some old german books about wave propagation),
> so it will be very important to catch the right period.
> My own observations have also shown strong and stable (plus low noise)
> signals in the second half of the (winter) night.
> 73 de Toni