[Milsurplus] AN/UGA-1 Mux, know it ?

[Nick England]

Time-division multiplexer for use with TSEC/KO-5 crypto gear - it
interfaces with 16 channel frequency-division multiplexer for RTTY.

https://www.navy-radio.com/crypto/KO5CSP6620A-02.JPG

FUNCTIONAL DESCRIPTION The AN/UGA-1 is designed to accept multiplexed
output of sixteen (16) channel multiplex equipment and divides it into
sixteen (16) separate channels which are synchronously related to each
other. Output on each channel is in six (6) unit synchronous signal. The
receive portion of the equipment performs companion function.
RELATION TO OTHER EQUIPMENT The AN/UGA-1 is designed to be used with but
not part of AN/UGC-3() for use on frequency division telegraph systems.
TYPE OF DIVISION: Time-division type.
TYPE OF OPERATION: Neutral.
TYPE OF ACTUATION: DC actuated.
NUMBER OF CHANNELS: 16.
NUMBER OF WORDS PER MINUTE: 60, 75, 100 words per minute per channel.
RELATION OF CHANNELS INPUT AND OUTPUT: The 16 channel inputs and outputs
are synchronous in nature and are synchronously related.

The KO-5 crypto system is a monster-
https://www.navy-radio.com/crypto/KO5CSP6620A.pdf

Nick England K4NYW
www.navy-radio.com


On Thu, Dec 7, 2023 at 4:11 PM Hubert Miller <Kargo_cult at msn.com> wrote:

> Anyone familiar with the USN UGA-1  16 channel TTY multiplexer, used with
> the UGC-3 radio ?
>
> I have a large ‘Teletype Corporation’ preliminary instruction book, and
> man does it look “prelim”,
>
> with lots of sort of unpolished drawings. Lots of transistors. This must
> be for a VHF system, right,
>
> or they couldn’t put that many channels on a signal ? Can someone give me
> the short version of
>
> what this system was about ? Date on manual, 1960.
>
> -Hue Miller
>
> Newport, Oregon
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