Apologies for taking this away from Elecraft topic, however, you might be
interested in a specific noise measurement system here:
http://www.crosscountrywireless.net/sentinel_2_sdr.htm
in which a *calibrated* sdr is programmed to continuously listen on 5 unused
HF frequencies and report to APRS every 10s.
Also:
http://g4fkh.co.uk/projects/noise-measuring-campaign/
David
G3UNA
----- Original Message -----
From: "Mel Farrer via Elecraft" <elecraft@mailman.qth.net>
To: "Rick Miller - N1RM" <n...@arrl.net>; <elecraft@mailman.qth.net>
Sent: Wednesday, August 02, 2017 1:09 AM
Subject: Re: [Elecraft] [K3] Using K3 for relative noise survey
Rick,
While it is not easy, you should put in the agenda checking it day and
night. I found very different noise profiles that way....
Mel, K6KBE
From: Rick Miller - N1RM <n...@arrl.net>
To: elecraft@mailman.qth.net
Sent: Tuesday, August 1, 2017 3:54 PM
Subject: Re: [Elecraft] [K3] Using K3 for relative noise survey
Thanks for all the info!
It turns out I have an RSP2 and now have it running with HDSDR in "slow"
waterfall mode. I'm now looking for a way to control the front end options
of the RSP2 - nothing seems to be built into HDSDR to do that, but that's
a
topic for another mail list. BTW - I conveniently have an EXCELLENT
Clifton
Labs 1800 KHz AMBC high pass filter that sure tames the input dynamic
range
when measuring 160M.
I will also try the suggestions for different ways to record signal
strength
on the K3.
Thanks again,
Rick
N1RM
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