[Elecraft] K3. RX too sensitive for me

Wayne Burdick n6kr at elecraft.com
Tue May 17 17:07:25 EDT 2011


Hi Mike,

The K3 has a lot of receiver gain. You can reduce it to something more  
like the gain of a K2 by setting CONFIG menu entry AF GAIN to LO. This  
will have no impact on performance.

Have you already tried turning the preamp off? It really isn't needed  
on the bands from 160-20 m unless you have a lossy antenna.

73,
Wayne
N6KR

On May 17, 2011, at 12:45 PM, Mike Rodgers wrote:

> I've got a lot of noise which I attribute to a sensitive receiver.  
> If possible I would like to find a way to reduce it somehow maybe  
> artificially. This would go a long way towards increasing my  
> listening pleasure.
> My agc dcy is soft. Hold is zero
> Pls is nor,slope 10 threshold 8
> Agc-f  120. S- 20. I generally keep it on fast.
>
> S meter noise level usually 4-5
> If I could use the rf gain to reduce it to s1 or 2 I'd like that. I  
> know the s meter wouldn't be accurate but I'd like it better instead  
> of now showing s9 or so when backing down rf gain. Would changing  
> the s meter mode to ABS allow the meter to do that?
>
> If the filter gain could go below zero I would do that. Maybe that  
> could be implemented?
>
> Ideas?
>
> Sent from my spy ring
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