I work at a Naval Air Base ans we have a control tower in 1 town and another control tower in another area.
There is a weather ckt on channel/port 1 which is a 2-wire 70/FDDC/500530 which is a legacy data ckt.
Our problem is that we can't pass a millwatt tone from 1 tower to the other tower, but in the other direction the tone will pass as it should.
This is a 2-wire Transmission Only(TO) application.
It was working but not now.
Any thoughts would be appreciated.
Navy1
