Originally Posted by billdozer
i was wondering if someone could answer a few questions... im trying to program a radio to the frs gmrs band. what is the freq step for these channels as well as what is the proper band wb or nb. what will happen if any of these were programmed incorrecly,
The bandwidth determines the frequency step. For this discussion, NB is 12.5 KHz while WB is 25 KHz.
WB and NB can talk to each other, but how well depends on a lot of variables. Since you'll likely be talking with others, you'll want to program your radios to match the bandwith per service.
Just keep in mind that FRS has a max power limit of .5 watts on all 14 frequencies. GMRS licensees can run up to 5 watts on FRS 1 to 7 which are shared with GMRS. Different rules apply to the 8 GMRS only frequency pairs.