“There’s a lot more to communications than just pushing the button and talking, just like there’s a lot more to shooting than just pulling the trigger. …if your comms fail during SHTF you can bet it’ll be because of something stupid like someone accidentally hit the the lock button on their radio and they don’t have a clue what’s wrong or how to fix it.”
The number one reason a radio check fails is there is no one at the other station even listening to you. Number two reason is the other station doesn’t even have their antenna plugged in. It’s wildly frustrating.