[Elecraft] K2 antenna 2 no antenna observation

[Guy Olinger K2AV]

Without thinking at all about it, many people run with the preamp on all the
time.  Since one has AGC, this has the effect of compressing the signal to
noise ratio.  It IS really important to get used to setting ATT/PRE to move
the noise down to where it is only moderate.  Just as true on a K2 as on a
K3.  The other thing is to use slow AGC, particularly in non-contest
conditions.  I almost never use fast AGC any more, including contests.

73, Guy.

On Sun, Jun 5, 2011 at 5:55 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

>  There is some leakage between ANT1 and ANT2 -- so you just switched in
> an attenuator of some unknown value.  I will wager you had the preamp on
> too.  Next time, you might want to try turning off the preamp to lower
> the noise, and possibly turning on the attenuator.  That way, you do not
> have to switch to "no antenna", and you can answer the station without
> changing antennas.
>
> 73,
> Don W3FPR
>
> On 6/5/2011 4:52 PM, W2bpi1 at aol.com wrote:
> > I was working a weak station with QSB that was at about my S4 noise
> level.
> > Happened to hit ant. 2 button. Now the noise is gone but I can hear the
> > station  weak but now solid copy. Interesting indeed! 72  Geo/W2BPI
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