S2-3 on K3 With No Antenna?

[Dana Roode]

Any thoughts on what it means to have a s2-3 noise when I switch in the
preamp on my K3 with no antenna connected?

  Dana
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[Don Wilhelm]

Dana,

It likely means ---
1 - You don't need the preamp on that band.
2 - You have not set S-MTR ABS (S-meter absolute) on in the menu.

Other than those things, I cannot think of anything else - other than
the remote possibility that you have a noisy preamp.

73,
Don W3FPR

On 12/26/2020 4:44 PM, Dana Roode K6NR wrote:
> Any thoughts on what it means to have a s2-3 noise when I switch in the
> preamp on my K3 with no antenna connected?
>
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[Charlie T, K3ICH]

Depends on the front end device.
This is typical of smoked GaAsFETS, for example, dumping a hundred watts in
the tail end of a mast mounted antenna pre-amp will cause this result.
 I had a "friend" who had this happen  (wink-wink.......).

73, Charlie k3ICH





-----Original Message-----
From: [hidden email] <[hidden email]> On
Behalf Of Dana Roode K6NR
Sent: Saturday, December 26, 2020 4:45 PM
To: Elecraft Reflector <[hidden email]>
Subject: [Elecraft] S2-3 on K3 With No Antenna?

Any thoughts on what it means to have a s2-3 noise when I switch in the
preamp on my K3 with no antenna connected?

  Dana
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