[GreenKeys] 132A2 subscriber set (TT-10/FG) and TTY book on line

Nick England navy.radio at gmail.com
Thu May 23 19:41:51 EDT 2013


Howdy Men -
While searching for info on the 132A2 subscriber set, I found
"Teletypewriter Circuits and Equipment" TM 11-680 on line
http://books.google.com/books?id=itUXAAAAYAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false

I picked up a manual for the 132A2 at Fair Radio last week - it is an
interesting gadget - essentially a model 14 RT (reperf plus TD) with
synchronizer circuitry to insert missing pulses. Intended for radio
teletype service where a start pulse or character pulse might get
dropped, but where an entire missing (as opposed to simply wrong)
character plays havoc with the crypto system.

I'll scan the manual when I get a chance. The 132A2 became the
TT-10/FG described beginning on page 164 of the above TTY manual. The
closely related 133A2 set became the AN/FGC-3.

So, my question is, was there a similar piece of M28 gear or was that
RTTY synchronizing/missing pulse function put elsewhere?

Cheers,
Nick K4NYW


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