Adrian, You can test the PTT by removing the radio connector from the OT2 and shorting pin 3 (PTT) to pin 6 (GND). That should key the TH-G71. If it doesn't, recheck the wiring. If the wiring is correct, then either the diagram in the TH-G71 manual is incorrect or incomplete.
If the TH-G71 does key up then make sure the HT jumper in the OT2 is open. I updated the wiring diagram in the files section to include that note about the HT jumper and added annotation to the pins on the OT2 radio connector block. Earlier this year there was someone else who was having the same problem. There was no additional information on whether the problem was found. Larry K7YBZ --- In [email protected], "Adrian Miura" <adrianmi...@...> wrote: > > I have confirmed the cable pin outs match the diagram posted for the > TH-G71. > > I can receive data but cant get the OM2 to trigger the PTT to transmit > my location. > > Any help would be greatly appreciated > > Adrian Miura > > KD5HTZ >
