I think FRS is the only thing legally available without a license. You can buy GMRS radios on Amazon that will communicate with FRS radios on all of the FRS channels, see here:
wiki.radioreference.com/…/GMRS_combined_channel_c…
However, these radios are VERY limited in an urban area with lots of concrete towers. In my experience the GMRS radios on “high power” really only go one little valley over out in the woods. In the city you might get two or three blocks because of all the concrete.
Maybe Meshtastic? That’s a radio I haven’t messed with and I don’t know about it’s performance in an urban environment.
Voroxpete@sh.itjust.works 4 weeks ago
That depends what you’re trying to solve. For a lot of people, they’re still gonna need their phone. I don’t think “Just use a walkie talkie bro” would read as very helpful advice to the average person.
If, however, you are the sort of person organizing a protest or other similar activity, yes, absolutely, walkie tallies are great. A lot of people who do serious political activism talk about how radio is still the most resilient communication method. Not fool-proof, you definitely need to study up on the limitations, but an invaluable tool to be aware of.
If you are going to a protest as a group, and you have the resources to invest a few hundred bucks, getting a set of walkie-talkies for the group plus a dedicated burner one responsible person to carry (maybe someone who will be in radio range but clear of the actual happenings) is also a solid strategy, but we also shouldn’t be acting like “Going as a group” and “spending a few hundred dollars” are prerequisites for being politically active. There need to be solutions for everyone.