According to these band plans, as I stated previously,
if you have a GMRS license, you are allowed to use FRS channels 1 ~ 7 with 5-watts maximum.
[source]
http://en.wikipedia.org/wiki/General_Mobile_Radio_Service
The GMRS-only channels are defined in pairs, with one frequency in the 462 MHz range for simplex and repeater outputs, and another frequency 5 MHz higher for repeater inputs. There are eight channels exclusively for GMRS and seven "interstitial" channels shared with Family Radio Service. GMRS use requires an
FCC license, and licensees are permitted to transmit at up to 50
watts on GMRS frequencies (although 1 to 4 watts is more common), as well as have detachable or external antennas.
GMRS licensees are also able to use the first 7 FRS frequencies (the "interstitial" GMRS frequencies), but at the lower 5 watt maximum power output, for a total of 15 channels. FRS channels 8 through 14 are not available for GMRS use; use of these frequencies requires an FRS transceiver.
[3]
Recently, hybrid FRS/GMRS consumer radios have been introduced with 22 channels, instead of the 14 channels associated with FRS. On this type of radio, channels 8-14 are strictly license-free FRS channels. Transmitting on all channels above channel 14 requires a license. Transmitting on the shared FRS/GMRS channels 1-7 requires a license, if using more than 1/2 watt. It is the responsibility of the radio user to read and understand all applicable rules and regulations regarding GMRS.
The FCC rules for use of hybrid radios on channels 1-7 require licensing only when operating under the rules that apply to the GMRS. Many hybrid radios have an ERP that is lower than 1/2 watt on channels 1-7, or can be set by the user to operate at low power on these channels. This allows hybrid radios to be used under the license free FRS rules if the ERP is less than 1/2 watt and the unit is certified for FRS operation. Only one maker of hybrid FRS/GMRS radios (Garmin) presently sells radios that will operate on the GMRS repeater channels; the common "22 channel" radios cannot be used with GMRS repeaters.
The requirement for GMRS licensing is ignored by the vast majority of users of these frequencies. Estimates of the number of hybrid FRS/GMRS radios sold to date range from 20 to 50 million units or more. This is compared with approximately 80,000 active GMRS licensees (per the FCC database). Enforcement against individuals is rarely, if ever, attempted. This has led to a lot of consternation among the "non-
blister-pack" segment of the GMRS user population, who have significantly more expensive equipment, and have paid $85 for a license. (GMRS and FRS/GMRS radios are often sold in "
blister packs" at electronic stores with the required application form for a license included among the warranty cards and safety notices.) Online communities such as
GMRS Radio Information and Forums and
Popular Wireless Magazines are encouraging GMRS enforcement.
GMRS Band Plan
There are 23 GMRS channels. None of the GMRS channels are assigned for the exclusive use of any system. License applicants and licensees must cooperate in the selection and use of the channels in order to make the most effective use of them and to reduce the possibility of interference.
Channel Allocation
Station TypeFrequency (MHz)mobile station or small base station operating in the simplex mode*462.5625**
462.5875**
462.6125**
462.6375**
4462.6625**
462.6875**
462.7125**
base station, mobile relay station, fixed station or mobile station462.5500
462.5750
462.6000
462.6250
462.6500
462.6750
462.7000
462.7250
mobile station, control station or fixed station in a duplex system467.5500
467.5750
467.6000
467.6250
467.6500
467.6750
467.7000
467.7250
FRS Band Plan
There are 14 FRS channels that can be used on a "take turns" basis. No FRS channel is assigned to any specific individual or organization.
Channel Allocation
ChannelFrequency (MHz)1462.56252462.58753462.61254462.63755462.66256462.68757462.71258467.56259467.587510467.612511467.637512467.662513467.687514467.7125