[Elecraft] RF gain sweet spot

[Brian Alsop]

I seem to recall that somebody demonstrate a similar artifact in the RF 
gain control to Elecraft at Dayton.  Anybody recall just what that demo was?

73 de Brian/K3KO

On 7/21/2011 21:37, Don Wilhelm wrote:
> Ed,
>
> Something is strange.  It may be your ambient noise level, so try it
> with the K3 connected to a dummy load (or just no antenna).
> Normally, as the RF gain is reduced, the S-meter indication will
> increase.  Apparently your K3 is doing something different.
> At a 9 o'clock position, my K3 indicates S-7 when the K3 is connected to
> a dummy load.
>
> 73,
> Don W3FPR
>
>
> On 7/21/2011 5:04 PM, K7WIA wrote:
>> Don,   when the RF gain is fully cw ( max )   I have 3 bars on the S Meter,
>> when I slowly reduce the RF gain control I watch the S Meter and when I get
>> it just past the 9 o'clock position the S Meter will reduce to only 1 bar
>> showing.  you can hear the background noise drop as you do this, then I just
>> add a bit more gain back just enough to hear the noise increase back up.
>> the lowest I can reduce the S meter is to 1 bar showing,  I add just enough
>> gain back to get the 2nd bar to flicker..   if i reduce the gain to much the
>> S meter will start to climb back up in the normal maner....
>>
>> Ed K7WIA
>>
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