i wanna buy one of these just to put a few uhf/vhf things into...like medevacs and whatnot...now i am correct by saying that since these dont operate by using a trunking system, no control channel is needed correct?...its just take it outta the box and go thru the tedious process of putting the "input" frequencies in?.......i never understood why actual input frequencies, are different from the actual frequency..but whats the deal on this radio?