|There are 5 receivers and 5 transmitters at
The voice repeater is an early design using a FM828 mounted in a rack mounting box. The UHF link was originally a FM321 but was changed to a Tait transceiver.
The circuit is not easy to follow but is accurate. The control board was changed to a URC101 and the variations are not recorded on the circuit below, however the interface with the URC101 would be very similar.
Note the WIA news broadcast uses a CTCSS tone to disable the time out and CW ID and this CTCSS decoder has an audio feed from the UHF link and the 147.850 MHz input hence the news input can be feed via UHF or VHF.