ROYAL NAVY SETS CIRCA 1914

TYPE	POWER (KW)	PURPOSE	FITTED IN	RANGE (NM)	TX  FREQ RANGE (meters)	RF FREQ RANGE (meters)
6	0.5	Harbour defence set	Defended ports	5	157	157

This set uses a spark gap transmitter and a crystal detector in the receiver.Not sure if this set was made by British Marconi.   Is the designator common to both the Royal Navy and British Marconi?  Can anyone collaborate?  Contact: jerry.proc@sympatico.ca

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Contributors and Credits:

1) Electronics and Sea Power  VAdm Sir Arthur Hezlet.  Stein and Day New York  1975

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July 4//19