Batboard

Anyone know how to add an amp to the XTVA? What pins on the db25 would trigger the relay circuit of the amp?

If you use an amp such as a TPL the relay is RF activated by the TX on the radio. You wouldnt need any other connections other than the input coax to the TPL (Other than the 12v to run the amp)
We used them for years 5watts in 110 out

Fowler

I sould have said we are 800 mhz trunking. I had a mtva with the amp and I ahve a amp for a stx convertacom. i was hoping to make use of one of them.