[Elecraft] Using external SDR and a K3 as antenna splitter

[Rick Tavan]

You can use a splitter or a simple T-connector. Connect RX ANT OUT to the
center port and RX ANT IN and the SDR to the "side" ports. Of course, with
a T-connector, all 3 ports are equivalent. Then turn on RX ANT from the
front panel. You lose 3 dB but that shouldn't be much of an issue on HF.

Yes, IIRC the Operator's Manual for K3 includes a good antenna routing
diagram.

/Rick N6XI

On Mon, Nov 18, 2019 at 8:08 AM Dave Cole <dave at nk7z.net> wrote:

> A few years ago someone posted a method of using a splitter, and the
> External Antenna jacks to feed an external SDR with the direct antenna,
> not a IF, but a wideband signal from the primary antenna...
>
> I think it was something along the lines of add a splitter, between the
> RX Antenna in/out, and then picking off the antenna feed to the SDR from
> an output of the splitter...   Does this make sense?
>
> Is there a high level block diagram showing the antenna pathing for a
> K3, with the ATU installed, and how the front panel switch labeled RX
> ANT controls the signal path?
>
> --
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist
> ARRL Asst. Director, NW Division, Technical Resources
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-- 
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Rick Tavan
Truckee and Saratoga, CA