[Elecraft] K3 - New Synthesizers and Diversity Mode

[drewko]

If that's all the antenna it takes to do successful diversity
reception I'd like to try it. But I don't want to pay the price of a
sub receiver. I wonder if a diversity receiver board could be
manufactured that would be significantly cheaper than a full function
sub-receiver...

Re birdies/noise: I haven't heard any with my new synth board, 40m or
elsewhere.

73,
Drew
AF2Z

On Mon, 04 May 2015 13:33:43 +0000, you wrote:

>When I first got my K3 a few years ago (#5027) I tried diversity, but 
>never really had much luck with it due to the lack of a halfway decent 
>antenna to put on the 2nd receiver.  With the new synthesizers installed 
>and after doing the experimental VLF sensitivity modification, I used my 
>QRP portable antenna (PAR EndFedZ) to listen down there.
>
>This morning I was listening to a QSO between K1JD and JA1NUT on 40 
>meters.  JD was running S9+ with QSB down to around S3 and JA1NUT was 
>about S7 down to S1 or so.  Accidentally turned Diversity on and WOW 
>what a difference that made - Shin (JA1NUT) was totally readable with 
>diversity mode on.  Had to get used to the stereo effect of having the 
>signal pass between the speakers as the strength changed and one RX took 
>over from the other but boy, it's much quieter than it used to be and 
>the "whoosh" when tuning is completely gone.  Really like the improved 
>version of diversity and that alone is worth the cost of the two syn 
>boards in my opinion.
>
>Someone mentioned "birdies" with the new KSYN3A's but I haven't found 
>any in mine.  He mentioned a much earlier serial number and I suspect 
>that's the difference.  Mine is #5027 and I've had it for a few years 
>now.  I AM running the latest firmware and have kept that current even 
>through the Beta versions.
>
>Jim - W0EB
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