[Elecraft] Diversity receive is fantastic

[Guy Olinger K2AV]

Hi Leroy,

When you place the rig in diversity, both receivers run directly off
the main (VFO A) synthesizer, period. If you are in diversity and TX
on your RX frequency, VFO B is not being used for anything.

VFO B remains independent so that such as split operation is possible.
Having VFO B hard reset to the VFO A frequency going into diversity
would blow up many common operating procedures.

Operating diversity, or not, listening to an up 2 frequency for a TX
operating spot can be necessary. In split mode with diversity on, a
double tap to the SUB button has me listening to the TX frequency in
the right ear, and a hold on the SUB puts me back in diversity,
**without losing my TX frequency** on VFO B.

It is possible to get K3 diversity to the audiophile's "sound stage"
level, where the band noise spreads all around the audio "horizon" and
CW signals come from point sources. Has mostly to do with the various
RF, AF, PRE, AGC settings, and using RX antennas with deliberate
varying patterns. When the pileup or weak-signal-plus-noise is spread
around the sound stage, diversity is really neat, and amazingly
helpful.

That is at the point where you have fed enough and proper information
to the headphones for your brain to separate everything out like a
conversation in a noisy crowded room. This is not the same thing as
diversity for the sake of not having both channels fade out at the
same time.

If one has not experienced a pileup on a K3 diversity sound stage, you
haven't yet experienced what it can do.

73, Guy K2AV

On Sun, Jul 3, 2016 at 12:17 PM, lmarion <lmarion at mt.net> wrote:
>     All of the RADAR and beacon systems I worked on before I retired from the FAA
>
> used diversity receive. I could see the video clean itself up , but it was a subtle.
>
>   I did not expect the diversity receive to work excellent like it does on my K3S.
>
> I was a little hesitant to get the SUB receiver, I was not sure the advantage was worth it.
>
> What a mistake that would have been!
>
>    Here is a firmware request for the DIV button:
>
> Could it auto tune the Subreceiver to your  operating frequency when you turn on the Diversity ?
>
> That would be so cool. It might already be able to do that, I just have not discovered it yet.
>
> Leroy AB7CE
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