On Feb 2, 2:17 pm, "
wrote:
On Feb 2, 1:23?am, "John A" wrote:

wrote in message ......

Many thanks for a fascinating post, Len.

John A

Thank you, but most of the thanks should go to a
gentleman at the Signal School that was in Fort
Monmouth, NJ, back in 1952. He had spent a lot
of his work time at Bell Labs. My MOS was
Microwave Radio Relay in the Army and had to
encompass comms techniques from landline
telephone through radio at VHF to microwaves.
Even more to a couple of GE technical reps who
oversaw the installation of 24-voice-channel 1.8
GHz radio relay terminals in Japan '54 to '56.
They had the knowledge at their mind's finger-
tips and infused a number of us back then with
some indelible information. :-)

If you wish to see a bit more of 50-year-old
military communications, download:

http://sujan.hallikainen.org/Broadca...s/My3Years.pdf

It's about 6 MB and takes about 20 minutes on a
dial-up connection. Hal has a lot of information
collected there, not all of it on broadcasting.




As is so often the case with word/phrase etymology, origins are
sometimes cloudy. The wikipedia article alludes to this. But I
believe the key is that the two outputs are equal in a so-called
"hybrid". You might simply tell your readers in summary that the
issue is unclear, and that you gave it the best shot anyone reasonably
can.