LF: Re: 136khz WSPR

["James Moritz" <james.moritz@btopenworld.com>]

Dear Jay, Vernon, LF Group,

Jay - Thanks for looking -  I can see that could be the problem!

The WSPR signal has a bandwidth of around 6Hz, so the problem is finding 
that much of a gap between lines. E.g. with the Northeastern USA chain with 
9960 GRI, lines should appear every 5.02Hz roughly, although I expect some 
will probably be stronger than others. Can you look with Argo on a wider 
setting to see if there are any 6Hz wide spaces, or at least areas where the 
lines are weaker?
Vernon - I'm afraid "SCP/LN8PHG" probably isn't a genuine signal, but WSPR 
producing a false decode - this is fairly common when narrow-band QRM is 
present, although only occurs rarely when just the band noise is present. 
Because of the way WSPR encodes/decodes, it will usually try to format any 
"gobbledygook" as a legitimate message with callsigns, reports, etc. You can 
usually tell by the outlandish callsigns and locators. A pity really, 
otherwise they would be pretty impressive DX!
Cheers, Jim Moritz
73 de M0BMU