The UK/VRC-353 was manufactured by Marconi Space and Defence Systems for the British Armed Forces. The VRC-353 was first introduced in the 1970's and was the worlds most versatile and advanced VHF FM vehicle radio system of it's time, capable of voice and data. It was mainly fitted in Land Rovers, Tanks & FFR vehicles and used as a base station.
Constructed in a die-cast alloy waterproof case, the radio is operationally compatible with the Clansman range of VHF radios as well as the RT-524, PRC-25, PRC-77, VRC-12, SEM-25, SEM-35 and other VHF radio sets.
You just gotta love those military specs, from the manual:
Receiver protection: No damage will be caused by a signal on the antenna terminal of e.m.f. 100 volts r.m.s. and at any frequency within the tuning range.
You can almost plug the antenna input into a wall socket and get away with it!
FM tactical radio