[App_rpt-users] Interfacing Radios (Vertex)

[Steve Zingman]

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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