[Lowfer] KA7OEI on 2200m in EN90

[Michael Sapp]

Thanks Garry: I was watching the waterfall at the time working on a rx 
filter project. At first I thought it was XND but it did not seem to be in 
the right place, Ron's signal usually shows

up a bit lower in frequency...so I was able to grab a screen shot...

https://www.dropbox.com/s/0chw2vlwaij3g1f/IMG_0959.JPG?dl=0

Exceptionally quiet at the time with no local in-band QRN sources and pretty 
much only  120 to 150 kHz energy making it to the mixer in the LF 
converter...about half of that

energy in 7~8 kHz bandwidth centered on 137.5 kHz...

Currently 137 kHz fairly polluted with in-band switcher noise, which my best 
guess is hash from neighbor's cloths and dish washing machines from the 
periodic mid-day nature of

how the QRM shows up.   Also caught WA9CGZ mid-day here for the first time 
this afternoon, lower atmospheric temps seem to have an impact on noise 
level....and/or the rx filter is working exceptionally well...or some combo 
thereof...

https://www.dropbox.com/s/y2guuiakblfc3i2/IMG_0961.JPG?dl=0

The CGZ captures may have occurred without the background noise as I was out 
to lunch at the time and the waterfall capture was around 1830 UTC vs 
1700~1800 for the CGZ captures....

Mike, tts


----- Original Message ----- 
From: "Garry" <k3siw at sbcglobal.net>
To: <lowfer at mailman.qth.net>
Sent: Sunday, December 10, 2017 11:59 AM
Subject: Re: [Lowfer] KA7OEI on 2200m in EN90


> Nice copy Mike. I noticed conditions to the NW were up last night but was 
> monitoring DGPS and the lowfer watering hole instead. Nice to know the 
> signal is making it so far east.
> -- 
> 73, Garry, K3SIW, EN52ta, Elgin, IL
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