[Elecraft] K3 - Preamp gain

[Nelson Moyer]

I asked the Elecraft service technician this question during a
troubleshooting session on the phone last week, and he told me the built-in
preamp has 10 dB gain. That's approximately two S units. My listening
experience on 160 meters with a preamp with 17 dB gain suggests that 10 dB
is about right, because I hear approximately one S unit difference between
the two preamps. I didn't ask which frequencies it was optimized for, e.g.
low bands or all bands.

Nelson, KU0A

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Fred Jensen
Sent: Saturday, November 15, 2008 10:55 PM
To: Elecraft Reflector
Subject: [Elecraft] K3 - Preamp gain

Can someone tell me how much gain [like in S units] I should see from 
the preamp?  This will sound weird but with the preamp on, the band is 
full of sweepstakes signals, many very strong.  With it off, it is 
almost silent.  15 is quieter than 20 with the preamp off, 20 and 40 are 
about the same -- preamp off = just discernible signals.

I've probably set something wrong in one of the menus, just don't know what.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2009 Cal QSO Party  3-4 Oct 2008
- www.cqp.org
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