Transmission1

Plessey PV2413 so I have had this come into the workshop from a local Ham, I am struggling to find any documentation at all on this device. While I know what it is and what it does I am in need of technical and or service / spec manual(s) or details regarding using this on a regular HF transceiver, specifically to cover RF pass-through etc.

Many thanks in advance

Mark

M1CTY