[Elecraft] K3. RX too sensitive for me - S-meter/RFgain/absolute mode...

[Guy Olinger K2AV]

On Wed, May 18, 2011 at 10:33 PM, Ron D'Eau Claire <ron at cobi.biz> wrote:
> Guy, you obviously didn't read my post.
>
> I said the signal path was analog all the way to the second I.F.

Actually I DID read your post.  You said:

"Don't forget that the K3 *is* a largely analog radio."

I quite disagree with "largely", and that is what I was writing about.
 It AIN'T your daddy's analog radio.  It doesn't have an analog
skeleton, it doesn't have an analog heart, it doesn't have analog
controls, and the front panel could be easily remoted across the
internet if Wayne took a mind to do it. It's essential behavior is all
in firmware, not in the analog components.  If anything, it's
minimally analog as necessary.

And the signal path to the second IF is NOT all analog,  It is
composed of a collection of analog pieces which are switched in and
out, shared between RX and TX, directions reversed, by digital
switches controlled by firmware.  Most of the main board is dual use,
and there are dozens of those switching double diodes.  The preamp is
used in some situations in the transmit state.  It's all in plain view
in the schematics.

73, Guy.