Hi Guy et al,
I was more or less curious about how it worked. I do hear a relay clicking
somewhere around 7400 kHz, but I do not recall seeing or hearing an
appreciable change in s-meter readings or AF levels.
I'm sure it works fine in the lower broadcast bands though.
James K2QI
On Mon, Dec 2
FWIW, mine switches in at 7410 KHz, increasing the signal by 7 or 8
dB. I compared the background noise level below and above 7410 using
the K3's internal dBV function, with AGC off.
73,
Drew
AF2Z
On Mon, 28 Dec 2009 11:26:04 -0500, Guy. wrote:
>If the AGC is being used, any difference would
If the AGC is being used, any difference would be seen in the S-meter,
not the AF output, unless you live in an extremely quiet location and
you're trying to copy 40m BC during the day.
My KBPF3 switches in at 7.385. If you turn the AF gains to minimum in
a quiet room, you will hear the relay kick
Sent: Sunday, December 27, 2009 11:08 PM
To: James Sarte
Subject: Re: [Elecraft] KBPF3 usefulness or effectiveness?
I do know that it makes a big difference on the broadcast band. Tune in a
station under 1000 kHz. It will be much louder on the antenna in jack on the
KXV3 than on the main antenna
James
I suspect that 7.5MHz is far too close to the existing 40m bandpass
filtering for you to notice any difference between it and the KBPF3. I can't
try it here as I only have the single receiver, but if you to look around
12MHz for example I expect you would detect a significant difference.
73
Hello Elecrafters,
When I assembled my K3 I installed the KBPF3 module in the sub receiver
figuring that I'd use the sub for SWL. However, I was thinking about moving
it back to the main receiver in order to take full advantage of the
synchronous AM detection feature. What I noticed though was t
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