A whole plate negative. On board the Royal Navy frigate Rothesay (1957) in the fitting out berth of Yarrow & Co Ltd at Scotstoun, Glasgow. In the Combined Radar Office on the port side of 2 deck between the officers' WC and the officers' galley. The photographer is looking aft from the forward end. On the right is the interrogator unit with a rack of Cathode Follower Units next but out of sight with the J.D.A. display next and the modulator unit at the end. On the left is another J.D.A. display, the entrance door, a transmitter unit and another modulator unit. A control unit fed by a large number of cables is in the centre.