This GMRS frequency chart puts the service’s fixed channels in one reference, then compares them with amateur-radio bands and CB channels. All frequencies below are shown in megahertz (MHz).

GMRS and CB use numbered channels with assigned frequencies. Amateur radio generally uses broad frequency allocations, so operators select a frequency within a band according to license privileges, mode, and local band-plan practices.

How to Read a GMRS Frequency Chart

A channel is a preset frequency or pair of frequencies selected by a radio’s channel control. A band is a range in which an amateur operator may choose a frequency. GMRS channels are concentrated around 462 and 467 MHz, while the amateur chart below covers several separate bands.

GMRS channel and frequency chart (MHz)

• Channels 1–7: 1—462.5625; 2—462.5875; 3—462.6125; 4—462.6375; 5—462.6625; 6—462.6875; 7—462.7125.
• Channels 8–14: 8—467.5625; 9—467.5875; 10—467.6125; 11—467.6375; 12—467.6625; 13—467.6875; 14—467.7125.
• Channels 15–18: 15—462.5500; 16—462.5750; 17—462.6000; 18—462.6250.
• Channels 19–22: 19—462.6500; 20—462.6750; 21—462.7000; 22—462.7250.

In the standard 22-channel layout, channels 1–7 are shared FRS/GMRS channels, channels 8–14 are FRS channels, and channels 15–22 are the main GMRS channels. CTCSS or DCS “privacy codes” filter received audio; they do not create additional frequencies.

Ham Radio Frequency Chart: Amateur Bands and Typical Uses

A ham radio frequency chart shows allocations rather than fixed channel assignments. The following are common United States amateur bands. Each band contains different operating segments for voice, digital modes, data, and weak-signal work.

Amateur-radio band chart (MHz)

• 160 meters: 1.800–2.000; 80 meters: 3.500–4.000; 40 meters: 7.000–7.300.
• 30 meters: 10.100–10.150; 20 meters: 14.000–14.350; 17 meters: 18.068–18.168.
• 15 meters: 21.000–21.450; 12 meters: 24.890–24.990; 10 meters: 28.000–29.700.
• 6 meters: 50.000–54.000; 2 meters: 144.000–148.000; 70 centimeters: 420.000–450.000.

Lower-frequency HF bands such as 40 and 20 meters commonly support regional or long-distance communication. Two meters and 70 centimeters are widely used for local FM, repeaters, and data. License class, national rules, and band plans determine which portions and modes an operator may use.

CB Radio Frequency Chart: Channels and Frequencies

CB radio has 40 fixed channels in the 27 MHz range. The channel numbers follow a historical layout, so several frequencies are skipped rather than forming one uninterrupted sequence.

CB channel and frequency chart (MHz)

• Channels 1–10: 1—26.965; 2—26.975; 3—26.985; 4—27.005; 5—27.015; 6—27.025; 7—27.035; 8—27.055; 9—27.065; 10—27.075.
• Channels 11–20: 11—27.085; 12—27.105; 13—27.115; 14—27.125; 15—27.135; 16—27.155; 17—27.165; 18—27.175; 19—27.185; 20—27.205.
• Channels 21–30: 21—27.215; 22—27.225; 23—27.255; 24—27.235; 25—27.245; 26—27.265; 27—27.275; 28—27.285; 29—27.295; 30—27.305.
• Channels 31–40: 31—27.315; 32—27.325; 33—27.335; 34—27.345; 35—27.355; 36—27.365; 37—27.375; 38—27.385; 39—27.395; 40—27.405.

Channel 9 is traditionally associated with emergency communication, while channel 19 is commonly used for highway information. CB radios may use AM or authorized single-sideband modes, depending on the equipment.

How GMRS, Ham Radio, and CB Differ: Channels, Bands, and Equipment

• GMRS: A channelized personal and family-radio service around 462/467 MHz. It is suited to local groups, outdoor activities, and compatible GMRS repeaters. GMRS operation generally requires the applicable license, and radios must meet the service’s equipment requirements.
• Ham radio: A licensed amateur service spanning multiple bands. It supports experimentation, repeaters, digital communication, and regional or worldwide contacts, but operating privileges depend on the license and selected band or mode.
• CB: A channelized 27 MHz service commonly used for vehicle-to-vehicle and local communication. It is not a substitute for either GMRS or amateur radio.

Choose equipment that supports the correct service, frequency range, antenna, modulation, and certification. A radio that can receive a frequency is not automatically authorized or technically suitable to transmit there; a GMRS, amateur, or CB radio cannot be treated as interchangeable simply because its channel display looks similar.