[ARC5] Using WSJT-X with R-23 or BC-453B

[Peter Eijlander (PA0PJE)]

http://physics.princeton.edu/pulsar/k1jt/WSPR_3.0_User.pdf
page 5, second paragraph:

Each decoded WSPR signal produces text showing the UTC, measured 
signal-to-noise ratio in dB (in a 2500 Hz reference bandwidth), time 
offset DT in seconds,measured frequency in MHz, drift rate in Hz/minute, 
and the decoded message.Time offsets greater than about ±2 seconds 
indicate a significant timing error at transmitter or receiver, or 
possibly both. For best performance your computer clock should be kept 
accurate to within ±1 second.

Apparent frequency drifts greater than ±1 Hz per minute can usually be 
traced to the transmitter, and should be corrected if possible. Of 
course, receiver drifts could also contribute to a measured drift — but
they are easily recognized because nearly all signals will appear to 
drift by the same amount.

Page 22 item 3:

3. Is your receiver drifting in frequency? If most WSPR traces slope 
either upward or downward in the spectrogram, the receiver is probably 
drifting too much. Try waiting half an hour to see if it stabilizes.

73,
Peter


Op 2017-10-29 om 15:37 schreef J Mcvey via ARC5:
> Has anyone been able to get successful WSPR decodes using either of the beacon receivers? For me, it appears that they have too much drift to allow the algorithm to work properly.The waterfall has a slight sideways tilt!.Even after an hour, they will not yield any stations although they are audibly there.
> It's a shame, too, because I think the beacon receivers seem to have better sensitivity on 630M than my YAESU or converted dongle SDR, both of which do produce good decodes.
> I swear I hear more stations using the BC453 and R-26!
> 
> 
> 
> 
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>