GMRS setup guides GMRS vs FRS, MURS, CB and ham
GMRS vs FRS, MURS, CB and ham License, power, range and radios compared
Only GMRS and ham need a license. GMRS is the one with repeaters and up to 50 W mobiles that still needs no exam: $35, 10 years, and your family is covered. FRS, MURS and CB are license-free but capped at 2–4 W. Ham needs an exam but gives the most freedom. Every figure below is quoted from the FCC.
Sources: rule text from 47 CFR Part 95 via the eCFR API (version dated 2026-10-01), and the FCC's own service pages for GMRS, FRS, MURS, CB and amateur radio, all checked 2026-10-21. Range figures are the FCC's own words, not our tests. Not legal advice.
The five services at a glance
| FRS | GMRS | MURS | CB | Ham (amateur) | |
|---|---|---|---|---|---|
| License | None, “licensed by rule” (§95.305) | FCC license: $35, 10 years, age 18+, covers immediate family (how to get one) | None, licensed by rule | None | FCC license after an exam given by volunteer examiners |
| Frequencies | 22 channels, 462/467 MHz (§95.563) | 30 channels, 462/467 MHz, shared with FRS (§95.1763) | 5 VHF channels: 151.820, 151.880, 151.940, 154.570, 154.600 MHz (§95.2763) | 40 channels, 26.965–27.405 MHz (§95.963) | 29 bands across the spectrum (FCC, internationally allocated) |
| Power limit | 2 W ERP on channels 1–7 and 15–22; 0.5 W on 8–14 (§95.567) | Up to 50 W output on the main channels for mobile, base and repeater stations; 5 W ERP on 462 MHz interstitials; 0.5 W ERP on 467 MHz interstitials for HTs (chart) | 2 W transmitter output (§95.2767) | 4 W carrier on AM/FM; 12 W peak on SSB (§95.967) | Set by Part 97 and license class (not covered here) |
| Repeaters | No. FRS radios can’t transmit on the 467 MHz repeater inputs (§95.587(a)) | Yes (repeater guide) | No. “MURS stations must not be operated as repeater stations” (§95.2733) | Not covered here | Yes (§97.205) |
| Antenna | Fixed; gain no more than a half-wave dipole (§95.587(b)) | No fixed-antenna rule, except on HTs that send text/GPS data (§95.1787(a)(4)) | External antennas allowed; 60 ft above ground maximum (§95.2741) | 60 ft above ground or 20 ft above the structure (§95.941) | Not covered here |
| Call sign / ID | No ID section in the FRS rules | Required, every 15 min and at the end (§95.1751) | “Not required” (FCC MURS page) | Handle allowed (FCC CB page) | Required (§97.119) |
| Radio must be certified for that service | Yes | Yes (Part 95 certified) | Yes | Yes | “Does not generally apply” (FCC) |
| Typical range, in the FCC’s words | Channels 8–14: “less than one-half mile”; more on 1–7 and 15–22 “depending on conditions” | “One to twenty-five miles depending on station class, terrain, and repeater use” | “Less than a few miles”; with an external antenna “ten miles or more” | No figure given | Not covered here |
Which one fits what you’re doing
- Kids, camping, a theme park, short trips with friends: FRS. No license, cheap blister-pack radios, and they still talk to GMRS radios on channels 1–22. The trade-off is a fixed antenna and 2 W ERP at most. Example: the license-free Rocky Talkie Mountain Radio files 1.524 W ERP on its FCC grant, about a third of the Expedition’s 4.48 W.
- A family that wants more range, a vehicle radio or repeaters, without an exam: GMRS. One $35 license covers your immediate family “regardless of age,” as the FCC puts it. It’s the only no-exam service with repeaters and 50 W mobile radios. Start with how to choose a GMRS radio.
- A farm, ranch or work site that wants quiet channels and no license: MURS. It’s VHF with only 5 channels and 2 W, but it allows external antennas and needs no ID. There are no repeaters.
- Truckers and highway travel: CB. It’s license-free, uses AM or SSB, and the FCC reserves channel 9 for emergencies and traveler help. It’s a very different band (27 MHz) from GMRS (462/467 MHz), so the radios and antennas aren’t interchangeable.
- You want to experiment, build gear, or talk across the country or the world: ham radio. It takes an exam (most people start at Technician class, per the FCC), and amateur transmitters generally don’t need FCC certification.
Common mix-ups
“FRS and GMRS are the same channels, so it’s all the same.” They share frequencies, but not rules. GMRS adds eight 467 MHz main channels that act as repeater inputs, higher power, and removable antennas. It also needs a license. FRS radios are locked to the 22 FRS channels and a fixed antenna (§95.587).
“I’ll just use my ham HT on GMRS.” A radio that can transmit on ham bands can’t be certified for GMRS (§95.1761(c)), and the rules say “no person shall operate a transmitter in any Personal Radio Service unless it is a certified transmitter” for that service (§95.335). How to check yours: is my Baofeng legal on GMRS?. Baofeng’s GMRS models compared: UV-5R vs UV-5G vs GMRS-V2.
“Bubble-pack radios that say FRS/GMRS.” Older dual-service radios were reclassified in 2017. The FCC says a radio that stays within the FRS channels and limits can be used as FRS without a license. If it includes the 467 MHz main channels (467.5500–467.7250 MHz) or exceeds those limits, it’s a GMRS device and needs a license (FCC FRS page). Since September 30, 2019, handhelds that combine FRS with any other licensed or licensed-by-rule service may not be sold (§95.591).
“MURS is FRS on VHF.” Not quite. MURS has no repeaters (§95.2733), 2 W output rather than ERP (§95.2767), and only five channels. A MURS radio can’t also be certified for another Part 95 service (§95.2761(c)).
What GMRS adds over license-free radio
- Repeaters. A GMRS repeater on a hill or tower retransmits your HT or mobile. That’s how the FCC’s range figure reaches 25 miles (how repeaters work).
- Vehicle and base station power. Up to 50 W output on the main channels (§95.1767(a)). Midland’s MXT575 and MXT500 file 47.9–48.9 W conducted; BTECH’s GMRS-50V2 and Wouxun’s KG-1000G Plus file 43–45 W ERP (radio table).
- Better antennas. You can use a removable antenna on a voice HT, or put a roof antenna on a mobile or base station (antenna guide).
- Short text and GPS messages on handhelds built for it (§95.1731(d)), such as the BTECH GMRS-PRO.
In exchange you agree to the GMRS rules: identify with your call sign, use Part 95 certified radios, and don’t link repeaters over the internet (§95.1749).
Related: GMRS range: how far can you talk? · channel and power chart · license guide · all radios
Common questions
If I turn my GMRS HT down to low power, can I use it as an FRS radio without a license?
No. What makes a radio FRS or GMRS is its FCC certification, not the power setting. FRS radios must be certified as FRS (47 CFR §95.335), can’t transmit outside the 22 FRS channels and must have a fixed antenna (§95.587). The FCC also says a radio that includes the 467 MHz repeater-input channels is a GMRS device, and you need a license to use it beyond the FRS limits (FCC FRS page).
Can a GMRS radio talk to an FRS radio?
Yes. FRS channels 1–22 are GMRS frequencies too, and the GMRS rules allow two-way voice “with other GMRS stations and with FRS units” (§95.1731). Put both radios on the same channel number and make sure their privacy codes match or are off. See privacy codes explained.
Can I talk to ham radio operators on GMRS?
Only in an emergency. §95.1733(a)(9) bars GMRS messages “to any station in the Amateur Radio Service” except emergency messages. A ham radio also can’t be GMRS-certified (§95.1761(c)); see is my Baofeng legal on GMRS?
Do I need a call sign on FRS, MURS or CB?
No. The FCC says MURS needs no station identification, and CB users may use a handle. The FRS subpart of the rules (Part 95, Subpart B) has no identification section. GMRS does: you give your call sign at the end of a transmission or series, and every 15 minutes (§95.1751). See GMRS call signs.