On board the Type 81 general purpose frigate Eskimo (1961) in No. 3 basin in Chatham Dockyard during her 1971-1974 modernisation. The photographer is in the MRS.3 maintenance compartment and 978 office between 46½ and 48 stations on the port side of 01 deck looking to port from the door. 978 radar equipment units including a receiver radar, a contactor breaker unit, an on/off and tuning unit, two delay units, a transmitter modulator and a power supply unit are against the port bulkhead. A vertical format negative.