The manual to an old military project I was one of the engineers for:
https://manualzz.com/doc/32844824/cs-3001-pulse-analyzer-unit---marlborough-communications-...
@mur2501 There is a newer version that they would buy for new installations. But as far as I know this model is still in use. The newer model is also based off the older model so still has a lot of my contributions in it I would imagine.
@freemo
Is the military still using this ??