[600MRG] WSPR-15

[John Langridge]

Hey Scott,

Yeah I am aware of the jumps/drift.  I have a draft from a fan near the U3 and also because I am running 100% TX during this check out, the GPS only resyncs abouut once an hour.  so there is some mobility to  my freq at the moment but it does not seem to impact decodes yet.  My main concern would be drifting into someone elses signal, which is why I am up higher than most of the other guys.

I am going to monitor the situation over the next couple of hours to days and see what transpires and what I can learn.  I will likely move the fan causing the draft later this afternoon.  gotta few other items on the plate at the moment.  But as a whole, I have been very pleased with the performance thus far...

73 and thanks again for your reports!

j




________________________________
 From: AA5AM - Scott Armstrong <aa5am at vntx.net>
To: John Langridge <jlangridge at sbcglobal.net>; 600MRG at W7EKB.COM; Ken Roberson <kwroberson at yahoo.com> 
Sent: Monday, December 30, 2013 1:03 PM
Subject: WSPR-15
 

Hi John ( XIQ) and Ken,

Have good copy on both your WSPR-15 signals this afternoon.

I v'e noticed some instability in frequency on both of your signals.

John, Your signal appears to be fairly stable over the course of a 15min
cycle but when the next cycle starts it jumps about .5 to 1 Hz.

Ken your signal had constant drift over  the 15 min cycle, ending higher in
frequency than what it started.

Didn't notice this on the WSPR-2 signals a fwe nights ago.

I tried to get a screen capture but managed to wipe out the waterfall
display for the past hour or so. If I can get some more captures I'll try to
get a good screen capture and send it to you.

Scott AA5AM