I am looking for anyone who has crossband two Ma/Com Orion radios (VHF to 800). I have built an interface using two Optoisolators and this works okay except I get a bounce. The only way to stop the bounce is to disconnect one or other radio's PTT line. I've tried a back to back hookup and I still get the bounce. The radio's have been programmed for PTT and Output low for this interface. I have use the Pyramid setup and this works okay but several of the interop frequecies are not using CTCSS and the Pyramid does not work without programming PL's.
If anyone has a setup that works please contact me.
Thanks
Mike