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My arguments tend to sum to the fact that the ham radio bands are provided as an experimental space. I'm not advocating for anything that hasn't been tried bef

• giantrobot 5y ago
  While I'm sure you've got links to regulations allowing for hams to use encryption, they're going to fall into two categories: emergency communications and preventing unauthorized access to remote automated stations (satellites etc). So encryption doesn't cause problems because it's scope is extremely limited. As for your suggestions for things in the HF bands, they simply do not make sense for the reasons I described. In the blasting stereo analogy, HF is like a stereo blasting you can hear across the country. There's very little bandwidth to even negotiate between stations and conditions vary so much that you'd need to change the symbol rate constantly. Hams settled on CW and slow digital modes on HF because that's what tends to works best on HF. They don't need wide bandwidth and they resist multipath interference.