"FM16" MF/DF
The Royal  Navy FM16, was an auto MF DF system based on the Lodestar IID  design . It  was introduced into service in 1960 and covered the range  250 to  550 kHz. Used an IF of 110 kHz IF.
FM16 (Photo courtesy John Wise, HMS Collingwood Museum)

Contributors and Credits:

1) John Wise <jaceywise(at)apple15.freeserve.co.uk>

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Oct 22/12