I think that's pretty much it Dave. Take a cable from the Rx ant out,
feed it to one port of a 3 way tee, take the second port to Rx Ant in.
Take third port of the tee to the SDR. There will be loss of course in
both paths depending on the impedance of the SDR. If your fussy you can
invest in a mini circuits splitter and use it to replace the tee. There
will still be loss but the impedances will be better matched and
defined, if that's important. To make it work you need to use the Rx Ant
switch on the K3 to send signal out the Rx ant out jack and receive on
the Rx ant in so feeding the SDR as well otherwise the jacks are
bypassed and only the K3 works, as normal.
Martin, HS0ZED
On 18/11/2019 23:06, Dave Cole 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?
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