Hi Bill
Any sign of signals yet . I am blasting away on 136.173 qrs30. and can see
a trace on the YO grabber and an odd hit on the 4X1 grabber.
de Mal/g3kev
----- Original Message -----
From: "Bill de Carle" <[email protected]>
To: <[email protected]>
Sent: Wednesday, September 07, 2011 10:24 PM
Subject: LF: Effects of noise burst
> I noticed my marker line was getting chopped up at times on both
> Spectrum Lab screens. At first I thought it was another strong
> carrier off-screen for the SL display but still within the 500-Hz Cw
> filter's passband. There are several clearly *audible* signals in
> there at times. So I brought up ARGO for a wider view using 3-second
> dot mode. You can see my marker at 136.170 Khz along with several
> other much stronger signals. Around the middle of the time grab it
> seems as if everything went dead - in fact it was a 45-second burst
> of local noise. Not much of anything audible but I saw the S-meter
> jump up about 30 dB (cutting back the RF gain and making the other
> weaker signals disappear). Interesting how the background looks
> exactly the same during the noise burst as at other times. We don't
> *see* any noise here, we see the *absence* of all the usual
> signals. That noise is what chops up my marker lines on the two .usr
> spectrum lab screens. Although still full daylight here it's getting
> near supper time and people are turning on appliances. Things will
> quiet down later hopefully. Here's the ARGO screen:
>
> http://www.nrtco.net/~ve2iq/grabs/136argo.jpg
>
> Bill, VE2IQ
>
>
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