On 14 Sep 2009 at 21:54, Dennis wrote:
>
> > >>>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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