Doug,
Wes answer your question, simply. A little more info on this: I
believe AGC only operates in the 2nd IF in the digital domain of the
K3 SDR. RF preamp and 1st conversion stage is constant gain which is
all that you see at the IF output. I use the IF to drive two LP-Pan
as fixed freq SDR's to provide I-Q signals for MAP65 on 2m-eme. I
take both main IF and subRx IF because I simultaneously receive two
polarity RF.
So the good news is your SDR-IQ will see a fixed signal in direct
relation to the signal level input to the K3. Very handy if looking
at sky noise vs ground noise on mw. SDR-IQ signal level display will
be in direct relation to signal from antenna (plus gain of
transverter and K3 front end).
I use my SDR-IQ in parallel with my K3 on the transverter IF which
allows me to monitor ground noise floor on 1296+. Definitely see
ground noise as antenna comes down to horizon or sees a tree or
bldg. I measure my dish Tsun/cs this way using Spectravue in the
continuous mode (amplitude vs time).
73, Ed - KL7UW
6m, 2m, 23cm eme ...9cm coming next
Date: Thu, 10 Aug 2017 04:43:00 + (UTC)
From: Doug Millar <drzarko...@yahoo.com>
To: Elecraft Reflector <elecraft@mailman.qth.net>
Subject: [Elecraft] AGC and IF Output
Message-ID: <470439615.902322.1502340180...@mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8
Hi All, Simple question. I am using the K3 as part of a microwave EME
station. I am using an SDR IQ on the IF output. My question is
whether the AGC effects the IF output level.?? Doug K6JEY
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
dubus...@gmail.com
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