A relic of the Cold War.
I am a relic of he cold war lol
It is there but more dependent on Satellite.
The DEW line was my read upon entering service to the USAF.
The school was intense as CP literature and advanced math didn’t quite cover it. It was a fully encompassing lesson that involved the intricate operation of these systems.
Some washed out. I credit the masters of Tesla, Edison, Marconi and Westinghouse to get it done.