I Went to a friends house today to set up and configure VarAC and Vara-HF for him with omni rig.
As we are only a few miles away from each other I set up 28.105 for us to operate on. If I connect to my home station from his, the radios handshake to an extent but won't connect to each other, when his TX stops, mine is already sounding back to him so I'm assuming there is a header to the TX that his radio is missing to allow the connect.
If I Make the contact from my station we connect instantly and can carry out a QSO.
If he tries to me unable to connect over 15 attempts.
All boxes are green in VarAC due to the close proximity with a +06db average, RF signal is S9+ on the radio S-Meter.
Omnirig has Poll int., ms set at 500 and Timeout, ms set at 100 in each transmitter. Identical radios (both Icom 7100's).