Idk if I would call it “new” but off grid or out of collected data is the right way to describe it. People who are paranoid military preppers are really into these.
Yeah just noticed it's not all that new. New to me. I have one of those SDR dongles somewhere I messed about with ages ago, seems like a few steps away from that.
Essentially a long range Walkie talkie. It’s hard to imagine a situation where you need one, You also need a team of people you are communicating with, And in that case it would be useful in a civil war context where regular uneducated people were killing each other. Intelligence services could still pick up your frequency and intercept communications. Interesting stuff though.