ORIGINAL: Montague
I'm not sure if there is a lower legal limit on the output power, but there might be.
I've searched for the tx output in watts but didn't find anything so i gave up.
*Take a trucker that runs east to west coast and i'm willing to bet he has a lot more channels than the standard or "legal" 40 channel radios,i'm also willing to bet he is pushing a lot more power than the "legal" 4 watts which is limited on his cb radio,i'll also bet some of them have a linear,so careful if your near Interstates*
I found this out yesterday while talking to a rc'er.