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All channels, 1-22, are now shared between GMRS and FRS. Only GMRS radios – which require an FCC license – can use wide-band FM and full power for maximum range on some of these channels.
GMRS and FRS radios share channels 1-7. GMRS radios are allowed to use wide-band FM and up to 5 watts of power on channels 1-7. These are best used for communication within a limited area, and when a GMRS radio mounted in a vehicle needs to communicate with a FRS or GMRS handheld unit.
Channels 8-14 are used by FRS and some GMRS handheld radios. The power and bandwidth limitations are the same for both services – 1/2 watt and narrow band FM only. No external antenna is allowed with these channels, which is why you won’t find them on any fixed-mount GMRS mobile radios. These channels are best for short-range communication between handhelds.
Channels 15-22 are of particular importance to licensed GMRS users in the overland community, because this is where full power, along with repeater stations are allowed. Both of these features are particularly useful when traveling off-road. GMRS radios may use up to 50 watts of power here, along with wide-band FM, which has better range and audio quality.
Nagoya NA-771G - Nagoya NA-771G is specifically tuned for 462MHz frequencies for GMRS....
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