In the United States, the Multi-Use Radio Service (MURS) is a licensed by rule (i.e. under part 95, subpart J, of title 47, Code of Federal Regulations) two-way radio service similar to the Citizens band (CB). Established by the U.S. Federal Communications Commission in the fall of 2000, MURS created a radio service allowing for licensed by rule (Part 95) operation in a narrow selection of the VHF band, with a power limit of 2 watts. The FCC formally defines MURS as "a private, two-way, short-distance voice or data communications service for personal or business activities of the general public." MURS stations may not be connected to the public telephone network, may not be used for store and forward operations, and radio repeaters are not permitted.

No licenses are required or issued for MURS within the United States.

Any person is authorized to use the MURS frequencies given that it:
Is not a foreign government or a representative of a foreign government.
Uses the transmitter in accordance with 47 CFR. 95.1309.
Operates in accordance with the rules contained in Sections 95.1301-95.1309.
Operates only legal, type-accepted MURS equipment.


MURS comprises the following five frequencies:
Channel Frequency Maximum authorized bandwidth Channel name
1 151.82 MHz 11.25 kHz MURS 1
2 151.88 MHz 11.25 kHz MURS 2
3 151.94 MHz 11.25 kHz MURS 3
4 154.57 MHz 20.00 kHz Blue Dot
5 154.60 MHz 20.00 kHz Green Dot

Channels 1–3 must use "narrowband" frequency modulation (2.5 kHz deviation; 11.25 kHz bandwidth). Channels 4 and 5 may use either "wideband" FM (5 kHz deviation; 20 kHz bandwidth) or "narrowband" FM. All five channels may use amplitude modulation with a bandwidth up to 8 kHz. MURS falls under part 95 and was not mandated for narrow-banding, such as those of Part 90 in the public service bands by January 2013.

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Published on: 2024-12-19 (6 reads)