"Seaguard" Auto Alarm

SPECIFICATIONS:

Type : ? receiver
Frequency range: 487 to 512 KHz
Modes: CW and MCW
Designators: Refered to as 1185A and NS703
Comment: This device incorporated a bell alarm which was triggered upon the receipt of the first dashes of an auto alarm signal.  It was the follow-on unit for the Vigilant auto alarm.

seaguard_a.jpg
The Seaguard as it appears in the radio room of Sprucebank, GMHX, in 1969/70/ (Photo courtesy Ships Nostalgia web page)

Contributors and Credits:

1) http://www.rnmuseumradarandcommunications2006.org.uk/MERCHANT%20SHIPS%20AND%20RFA%20FITS.pdf
2) GMHZ photo http://www.shipsnostalgia.com /gallery/showphoto.php/photo/94895/title/sprucebank-radio-room-1969-2f70/cat/530
 

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Oct16/12