Steve, I've use a VX-2000 as a node radio. I don't know how close they are, lets hope close. If I remember, the Discriminator can be brought out to the DB-9 by moving a zero ohm resistor on the board. You will have to get a copy of the service manual to verify. I also remember using AF Mute as the COS / CTCSS signal. If you program the radio as CTCSS, AF Mute should track this. No info on the VRX-9000, sorry. Hope this helps. 73, Steve N4IRS

Good Day! I am looking for proven working interface wiring and signal trimming to interface a single URIx to two different radios. I need to interface a cross-band repeater to a URIx. [I have two URIx's. If fully connection two radios has advantages or is easier please explain.]

The receiver side is a Yaesu/Vertex VX 2100. I don't see a discriminator out, so maybe just AF Out on pin 2. I don't see a PL/CTCSS/COR/COS out, so manipulation of the RSSI on pin 5, maybe? It looks like you can program some output general purpose pins on the radio, but I have not found a list of those capabilities. Would appreciate interconnect information from anyone using this radio with an URIx.

The transmitter side is a Yeasu/Vertex VXR-9000. It has AF input on pin 3 and PL input on pin 4. The external PTT on pin 12 seems straight forward. I would appreciate confirmation of a working interconnection to a URIx.

All pointers appreciated. ...STeve - KF5VH

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