Type : The Marconi Lifeguard is a solid state maritime auto alarm receiver designed to automatically monitor distress frequencies for alarm calls from ships in distress. Up on receipt of an alarm, the unit will sound an alert in the radio room, the radio officer's quarters and on the bridge so that all necessary crew members are alerted to the distress.

Frequency: Monitors 500 KHz only
Modes: Reacts to CW or MCW signals
Technology: Vacuum tube.
Mains input:  110 VDC or 220 VDC.    115/230 VAC AC mains with the use of adaptor units,  24 VDC is required for the alarm bell,
Dimensions: 19"W x 12" D x 3" H
Made by: Marconi Marine
 

Lifeguard N. (Photo courtesy Marconi Mariner magazine; Nov-Dec 1970)

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Contributors and Credits:

1) Ross Bradshaw [ross.bradshaw@mypostoffice.co.uk]
 

Mar 31/20