this post was submitted on 16 Apr 2026
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AM allows multiple to talk and also allows edge-case signals to be received. FM and digital is way more sensitive to weak signals being washed out where as even a washed out AM carrier can often be picked out of the noise enough to realize someone has a problem.
That's what I said.
Nextel iDEN is a good example of a hyper low-latency digital mode that could be used, although likely a CDMA-based air-path would be a better choice as all radios can talk on the same channel at the same time without interfering.
Would be a very complex system to make durable, but remotely possible.