All you need is radios that cover the assigned ham radio frequencies and an antenna, and you can monitor it all.
Transmissions are in voice, Morse code and digital, AM and FM and single sideband, etc, so you have to learn a little and invest a little to hear and see it all, but it's doable.
Encryption, to the best of my knowledge, is not allowed.
What you said is true to a point.
Many years ago in the Air Force we put up up a 12 channel Voice Frequency Carrier Telegraph "Tone Pack." Each channel was only an on or off tone. To a Ham operator that Tone Pack sounded like a special kind of noise. Encryption was allowed. Oh, and that Voice Frequency Carrier Telegraph technology was patented in the 1920's. You also may see it called VFTG instead of VFCT.
Yup, not only legal, but normal in the military.
I was referring only to civilian "ham" radio.
Plus I haven't remembered or kept up on things as I should.
What was your career field in the USAF?
Of course encryption was allowed. The government always has different rules than us proles.
I think this decision by CA is just another example of the stupidity we've come to expect from them. Yet another grab for money.