[GreenKeys] How were teletypes connected across long distances?

[Harold Hallikainen]

On Fri, November 24, 2023 7:30 pm, Nick England wrote:
> This document covers the evolution of the Navy’s teletype network during
> WW2.
> https://www.navy-radio.com/manuals/ntx/NTX-story.pdf
>
> A combination of wireline and radio.
>
> One thing I found interesting was that early on, relayed messages
> evidently
> had to be printed and then typed in again. Then, of course, they moved to
> paper tape relay.
>
> Nick K4NYW

Thanks for posting that! It's amazing that they didn't use reperfs from
the start! I can't imagine retyping every message at each relay station.
Great way to introduce errors! But, I also remember having manuals typed
up. We'd mark it up with edits, and it would be retyped. A LOT of work!

The message headers that included routing are also interesting. It reminds
me of UUCP bang path routing of email (
https://en.wikipedia.org/wiki/UUCP#Bang_path ).

This was going on 80 years ago. Look at how the technology has changed.
But also look back 80 years from 1943 or so. Amazing changes in
technology. What was accomplished in each period of history is truly
amazing.

Harold
https://w6iwi.org