Mike ....
I've seen that too..... The ones I've seen do drift, but very slowly and you
can hear them - a low frequency noise. But ..... they do not appear on
either the K3 or the K2 - all running on an Astron RS50.
I also hear (and see) birdies on the 1500 that are not there on the K2 or
K3. Generally they don't bother me, but one hasn't appeared on 'the DX
station of interest'!
And ..... I got the 1500 working on the Acer Netbook with VSPmgr and N1MM..
I'll give it a 70 or 80% grade - lower latency and QSK are all that is
lacking now and I'm sure some of that will improve in the future.
72 73 Hank K8DD
----- Original Message -----
From: "Mike WA8BXN" <hubb...@hotmail.com>
To: <flexradio@flex-radio.biz>
Sent: Wednesday, September 08, 2010 10:40 AM
Subject: [Flexradio] Drifting noise hills
I have noticed at times (particularly during fox hunts) what I can best
describe as a noise hill that usually drifts around in frequency. For a
width of several KHzon the panadapter I see what is shaped like a "normal
curve" that trails off for many more KHz. In panfall mode I can see a
brightening where the curve in the panadapter display.
Sometimes, when the peak of the curve is in the passband of the receiver I
can hear a shift in the noise frequency at around a second or two
intervals
as the peak drifts around.
I have observed this with both a 1000 and 1500 flex radios. Disconnecting
the antenna gives a flat display. Connecting a wire to the antenna several
feet long just in the shack does not show the noise hill, so it doesn't
look
like its something in the shack.
The effect happens with a number of antennas and is not consistent at all.
I
live in a rural area with other houses hundreds of yards away.
Has anyone else observed this sort of thing or have any idea what it might
be?
Thanks in advance!
73 - Mike WA8BXN
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