TS590G Interface to SDR
Adding a Pan Adaptor using your computer and a Software Defined Radio, can be dead easy on some radios, with others requiring modifications to the radio, something that can be easy to do or the opposite.
The Kenwood TS590S unlike the newer TS590SG does not easily lend itself to connecting a Software Defined Radio There are modifications that involve fitting a cable to the internals of the radio, providing the RF signal to reach the Software Defined Radio. The idea in this case is that the RX/TX switching is taken care of by the radio.
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Above is the Kenwood SDR Interface and below is a video of the project