[laplata]

You did not answer my question because you can’t answer my question.

NORPAC 82 was 40 years ago. Give me a break.

[Widget Jr]

I gave you a link to an article which explains the basics of how it is done, and a brief explanation in my original post.

NROPAC 82 was 40 years ago, that is 100% correct. Using the curvature of the earth, radar horizons, and turning off radio emitters to avoid detection have not changed.