> >>>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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