[GreenKeys] Teletype and TEMPEST info

[Nick England]

Hi gang - Some Model 28 equipment was designed to reduce electromagnetic
radiation that could compromise crypto operations. I've started a page with
some info and would welcome corrections, more info, links, etc. Some places
I am just extrapolating from a little info...
http://www.navy-radio.com/tty-tempest.htm

Cheers,
Nick England K4NYW
www.navy-radio.com
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