[Elecraft] K3 - New Synthesizers and Diversity Mode

[John Molenda]

Thanks guys ! I am excited to try them and it sounds like it is very 
easy to install .  Great thinkers at Elecraft .  John Molenda kb2huk

On 5/4/2015 12:07 PM, Don Wilhelm wrote:
> John,
>
> Yes, the new KSYN3A boards are not only "approved" by Elecraft, they 
> are designed and sold by Elecraft and included in every new K3 since 
> the announcement.  The KSYN3AUPG kit is priced at $189.95.  If you 
> have the KRX3 in your K3, you will need 2 of them.
>
> Installation is a matter of removing the top cover and removing 2 
> screws from each synthesizer board, then lift the board out and unplug 
> the cables.  Install the cables on each new board and plug it in - 
> fasten two screws.
>
> Some have had trouble dropping the lockwashers that are behind the old 
> synth boards when removing the screws.  My method is to almost remove 
> the screws, then tilt the top of the board to the rear and push the 
> lockwashers up against the back of the board.  Finish removing the 
> screws and the lockwashers will stay on the screw threads.
>
> Not a difficult task at all.
>
> 73,
> Don W3FPR
>
> On 5/4/2015 10:47 AM, John Molenda wrote:
>> Hi Folks I am hearing about this new ksyn3a's synthesizer boards late 
>> in the game can some one tell me are these boards approved by 
>> elecraft ? How much are they ? how difficult are they to install . 
>> Thanks to all who try to help this lost one !  JOhn kb2huk
>>
>> On 5/4/2015 9:33 AM, Jim Sheldon 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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