> >>>I have learnt, WSPR sounds like a slightly rough CW and is transmitted
> in
> >>>4min-blocks. <<<<<
>
> Dennis , That may not be wspr , wspr tx time is 120 seconds locked to
> the
> exact time , with the start time on the 00-00
> by sound its like a very slow narrow shift psk signal .....but it is only
> one carrier changing frequency with no breaks in the 120 second
> transmission
Okay better to say: One cycle seemed to be 4min, divided into abt. 115sec TX
and 125sec no TX, maybe RX? The beginning of the received transmissions were
always well within half a second around even minute + zero seconds which to me
seems to be the strongest hint that is really was some wspr what I was hearing.
(DCF77-clock beside the speaker)
Since yesterday I'm looking for a notebook - to run wspr :)
vy73
Dennis
DL6NVC
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