Comment on Going to a Protest? Don't Bring Your Phone Without Doing This First
rc__buggy@sh.itjust.works 4 weeks agoI 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.