[GreenKeys] Full Duplex / Polar Relays

[Duncan Brown]

Tom,

Some of our TTY circuits in Viet Nam were full duplex. Much better 
thruput if you have a lot of traffic to send in both directions!

I was a TTY repairman and often had to do troubleshooting with a TTY 
operator on the other end of the circuit. More difficult on a full 
duplex circuit where you couldn't see what you were typing!

Have fun,

Duncan
K2OEQ

On 05-Apr-21 09:00, Tom Hunter wrote:
> Steve Bennett,
>
> Download this from navy-radio.com, You will learn more than you ever wanted to know about Teletype circuits.
>
> I have it on paper and have been working my way through it. Most of it is familiar to me. But there is always something new to learn. For example, I have used full duplex on audio pairs, but did not know it could be done with TTY loops.
>
> http://www.navy-radio.com/manuals/tty/Principles_of_Telegraphy.pdf
>
>
> Tom   N3CRK
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