I connect to an IF test point, CN201. To protect the
SDR and your expensive Kenwood, you should use a
buffer board with high impedance in and 50 ohms out.
This will keep it from loading down the internal
test points, and if you static zap the output, you
likely will not damage the radio.
I used a
DX Engineering Clifton
Laboratories Z10000 Buffer Amplifiers
DXE-Z10000U-KIT. I connected that to
CN201 (see the
TS590S technical manual
p10) I am using a SDR RSP1A, which is pretty high end,
but lots of others work too, depending on how good
you need it to be. The cheaper ones will not have
the filtering to reject interfering signals. The
SDRuno is as good or better than the TS-590S
receiver.
Pictures after assebly:
Backside SMA connector
-
Inside view connetion and
buffer board
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