17 Jun
1999
17 Jun
'99
11:21 a.m.
The plug is a PL259, the socket an SO239 IIRC. You can
get adapters from
them to BNC plugs/sockets so you can use normal 'scope probes.
To the U.S. Army Signal Corps, they are indeed known as the PL-259 and
SO-239 pair, and to the U.S. Navy, they are known as 49194 and 49195. I
do not know which came first - my guess is the Navy term. I do not think
they ever received a U or UG prefix, as most post 1945 military
electronics designs went with the N connector.
William Donzelli
aw288(a)osfn.org