[Elecraft] K3 Aux RF mod for Rx out (No Sub-Rx)

[Don Wilhelm]

Russ,

Are you trying to use your SDR as a Panadapter, or do you want to share 
the antenna that the K3 is connected to with that receiver?

If you want to use it as a Panadapter, then you need to connect it to 
the K3 IF output (assuming you have the KXV3A option installed).

If you want to share the antenna, then the splitter is a solution - what 
about protection for your SDR receiver when the K3 is transmitting?

73,
Don W3FPR

On 8/24/2015 2:18 PM, Russ wrote:
> I would like to split my K3's Rx feed to also feed my new SDRPlay SDR.
> One way is to put a splitter (I'd use a mini-circuits ZFSC-2-1W+ or similar) between the KXV3A's Rx In and Rx out ports and suffer the 3 dB loss (which should be insignificant since my ambient noise is far above the K3's Rx noise floor.Another way - I think - since I do not have a Sub-Rx is to make the Aux-RF BNC an output fed off of the cable that normally feeds (the nonexistent in my case) Sub- Rx.  This leaves RX in/Out available for a transverter later on.  BTW - I think this will still incur the 3 dB loss - albeit insignificant
> For those of you who are more familiar with the topology of the K3 - is there a simple way to accomplish #2 without buggering up the rig?
>