[Elecraft] Installing a Sub Receiver

[Don Wilhelm]

Ted,

The new synthesizers give the K3/K3S a vast improvement in transmit 
phase noise, as well as improving the receive noise floor performance by 
several dB.

Both synthesizers must be the same.

I would highly recommend getting another KSYN3A board to use in your 
main receiver to match the one supplied with your KX3A.
If you anticipate using Diversity mode, it is a necessity.

If the filters in your KRX3 do not match the ones in your main RF board, 
then the new synthesizers are a MUST - the new synthesizers can work in 
diversity mode with unmatched filters, but the old ones cannot.

73,
Don W3FPR


On 12/16/2019 10:48 AM, Ted Edwards W3TB wrote:
> I put it off for years getting the Sub-Receiver for my K3.
> With the change to K4, I got a sub-receiver before they become unavailable.
> 
> The sub-receiver comes with the KSYN3A synthesizer board --- so it occurs
> to me to change that board into the primary receiver and use the older one
> with the sub-receiver.  That may make it easier to change out later.
> 
> I am really so impressed with the K3 receiver after about 6 years that the
> new synthesizer always seemed pointless -- but now I have one anyway.
>