[Lowfer] WSPR decodes so far

John Andrews w1tag at charter.net
Sun Dec 13 13:38:40 EST 2015


All,

Other than the stability issues reported with WSPR-X (no uploads, blank 
waterfall, lockups), I'm getting suspicious about its weak-signal 
performance. My reports on SNR for Bill's (WH2XRR) signal on WSPR15 are 
curiously lower than I usually see when he's running WSPR-2. For that, I 
decode with WSPR2 or WSPR4, not WSPR-X. They seem to be off by almost 6 
dB, and that's close to the expected WSPR-15 weak-signal advantage. 
Something doesn't seem right!

After the current 1830-1845Z segment finishes for WD2XES, I'm going to 
switch over to WSPR-2 on 137.430 kHz for the rest of the afternoon, with 
a 50% duty cycle.

It might be interesting if some of you could compare what you've been 
getting with my WSPR-15 signal with the upcoming WSPR-2 signal.

John, W1TAG/WD2XES


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