Capt John wrote:
Their still common equipment on high end sportfishing boats and
commercial fishing boats, to home in on the location of other boats.
Other than that their only useful for rescue work.

Are you referring to _VHF_ homing devices? My impression was that the
original poster was interested in RDF's, which operate on quite different
frequencies. They are still common in many parts of the world.


--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare