In Press Jones (N8UG) Wirebook IV, he writes "Cables used at radio
frequencies and manufactured for the government in this country have
identified and classified with the "RG" legend since the 1940s.
R = Radio Frequency
G = Government
8 = an example of the sequential number assigned to the government
approval, thus, RG8/U
U = Universal Specification

.... unquote

Bob
k5qwg





On Mon, 29 Oct 2012 21:19:05 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

On another list, populated by people with good guessing skills, poor memories
and so on, the question of where did the RG numbers come from?

The most popular answer told with the most auhtority is that RG stands
for "Radio Guide", as a device, the predecessor to wave guides.

I was under the impression, and may have read from a better source that it
does indeed stand for Radio Guide, but that was a tile of a book.

Is that the case, are we all wrong?

If it is from the title of a book, does anyone have a link to, or can send
me a (scanned?) copy of it?

TIA,

Geoff.