[Lf] from Mike Dennison re US LF

[Andre' Kesteloot]

Mike Dennison wrote:

> > An LF beacon in eastern Ontario will be on the
> > air shortly, a LowFer beacon is on the air in Southern Ontario as well.
> >
>
> Larry (and Andre as well),
>
> In order for DX beacons to be REALLY useful, ie identifiable on
> Spectrogram etc, they should ideally transmit continuously with
> regular hand-speed callsigns for the audio boys, but also have
> extremely slow CW imposed on it in very narrow FSK for weak
> signal work. Something like 2 or 3Hz shift would be very visible on
> a DSP program but inaudible to the listener. It may be that we
> could have seen the USA beacons by now but it would have been
> impossible to have made a positive identification in any case.
> More work for you!!
>
> Well done on the test licence.
>
> Mike, G3XDV (IO91VT)
> http://www.dennison.demon.co.uk/activity.htm