[600MRG] graphing WSPR data

[John Langridge]

Good stuff Rudy and Ralph!

Regarding your assessment of >-8db S/N for WSPR signals to become audible, are you listening via speakers or with headphones?  That number seems to jive pretty well with the levels for "easy" CW copy with headphones as assessed with many CW QSO's with XJM over the past 16 months.  Its kind of a crap shoot below -8/-10 and seems to depend on the operators willingness to dig through the noise and what filtering is available.

I can report that looking at the few CW QSO's with XJM from the middle of the night or later into the early morning, those signals are significantly better than the sessions where I was active between 0200z and 0300z.  Thats not to say the earlier signals are not workable because they are but going east there seems to be a peak later in the night/earlier in the morning..  Its too bad I don't wake up more in the middle of the night with the willingness to operate HI!

Again great info and that analysis is much appreciated!

JOhn XIQ




________________________________
 From: Rudy Severns <n6lf at epud.net>
To: 600MRG <600mrg at w7ekb.com> 
Sent: Friday, January 31, 2014 1:40 PM
Subject: [600MRG] graphing WSPR data
 

Working with Ralph, W0RPK,  I've been graphing some of the WSPR SNR data for the path between us and also some other stations.  The results are interesting and my be useful so I've written up a short note on the work to date and posted on my web page:  www.antennasbyn6lf.com .

The XYL is doing fine despite having to eat my cooking!  I have to do a lot of the work she normally does so you won't hear much more from me for a few days.

73, Rudy 


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