The Auto Keyer generates a distress signal and would be plugged into the "key" input of the main or emergency transmitter.

Designator: Also known as NM102
 

Logo image by David Brooke

Autokey. (Photo courtesy Ships Nostalgia web page)

---

Contributors and Credits:

1) http://www.rnmuseumradarandcommunications2006.org.uk/MERCHANT%20SHIPS%20AND%20RFA%20FITS.pdf
2) http://www.flickr.com/photos/davidbrookes/6786655550/
3) http://www.shipsnostalgia.com

Nov 1/12