[Elecraft] [K3] Using K3 for relative noise survey

[David Cutter]

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 at mailman.qth.net>
To: "Rick Miller - N1RM" <n1rm at arrl.net>; <elecraft at 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 <n1rm at arrl.net>
> To: elecraft at 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