[GreenKeys] Polar relay

[amourdutigre]

Hi all,

Thankyou for the info. I was wondering what they were used for, and did not quite get the info that I needed from Google. Found lots of neat pictures of rooms full of landline repeater stuff from around the turn of the last century, but only some arcane descriptions of what they were used for.

As you can tell, I am an electromechanical TTY/RTTY neophyte, and have lots to learn! I cannot wait to get my first TTY unit so that I can get a "real RTTY"  (as opposed to computer RTTY) QTH set up and on the air!

Thanks again and best of the new year.

Joe KB0TXC

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