On board the type 81 general purpose frigate HMS Tartar (1960) in Portsmouth Dockyard between November 1973 and April 1974 during a refit. The photographer is in the communications control room (receiving) (CCR(RX)) between 41 and 43 stations on the port side of 3 deck looking aft and to starboard from 41½ station on the starboard side showing the CJA receiver test unit next to a work bench whch has a cupboard and drawers under it and a dial telephone, switch sockets, and a filter box above it. A junction box, a loudspeaker, two suppressor units and a duty watch board for week commencing Monday 18 March 1974 are against the aft bulkhead. A vertical format negative.