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Transmitters & Transceivers

©RN Communications Branch Museum/Library

Type 609

	DATE OF DESIGN
	FREQUENCY RANGE
	POWER SUPPLIES		Radio Transmitter Unit - Mallory Type battery rated at 120 volt 150 mA Light-pulser Unit - 4 x 3 volt dry batteries.
	RANGE IN MILES.
	TYPE OF SET (VALVES USED)
	WAVEFORM
	ASSOCIATED WAVEMETER.
	METHOD OF PRODUCING OSCILLATIONS
	WHERE USED/FITTED		Fitted into the existing Submarine Indicator Buoys to enable them to transmit radio distress signals as well as the flashing light signal.
	FURTHER READING
	PHOTOS, SCHEMATICS, DOCUMENTS		Details of Type 609
	NOTES.		BR 2182 (1958)