LMRS

Land Mobile Radio Service (LMRS) - FCC Title 47 Part 90; Private land mobile radio systems are used by companies, local governments, and other organizations for communication. Many businesses and industries throughout the world use it as their primary means of communication, especially from a fixed location to mobile units. These licensed systems often share frequencies with other private users in the United States.

Private Land Mobile Radio Service licensees in the 150-174 MHz and 421-512 MHz bands have been mandated by the FCC to move to narrowband only use before January 1, 2013. The narrow band requirement is at 12.5 kHz maximum.

LMRS can be described as the following two components:

1. The Land mobile radio system
2. The Land mobile service

LMRS is often referred to as the "business band." It was established in 1927 to permit commercial and public safety uses of two-way radio by commercial entities and non-Federal government agencies. The available frequencies in the US have traditionally been separated into two pools. One is for industrial and business users which we call LMRS, including some special categories such as petroleum, manufacturing and forestry and the other is for public safety including medical, police, fire and others.

Frequency charts

Although the term "business band" refers to several discrete frequencies that are not grouped into a single band, examples of some of the frequencies are grouped by band and listed below. These charts also list other frequencies not specifically part of the "business band" but commonly used by businesses. An individual license is still required under GMRS rules. A few manufacturers added these DOT frequencies to Business radios in the 1990s to have more "channels" and aid in selling radios.

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Low-band frequencies

Name	Frequency	Notes
	27.490 MHz	Low power, itinerantTemplate:Efn
	27.510 MHz	Low power
	27.555 MHz	Low power
	30.840 MHz	Low power
	33.120 MHz	Low power
	33.140 MHz	Low power
	33.400 MHz	Low power
	35.020 MHz	Low power
	35.040 MHz	Low power, itinerant
	42.980 MHz	Low power
	43.040 MHz	Low power

VHF frequencies

Name	Frequency	Notes
	151.505 MHz	Itinerant
	151.5125 MHz	Itinerant (narrow band)
Red Dot	151.625 MHz	Itinerant
	151.700 MHz	Itinerant
	151.760 MHz	Itinerant
	151.820 MHz	Multi-Use Radio Service (MURS); 2 watts, 11.25 kHz bandwidth
	151.880 MHz	Multi-Use Radio Service (MURS); 2 watts, 11.25 kHz bandwidth
	151.940 MHz	Multi-Use Radio Service (MURS); 2 watts, 11.25 kHz bandwidth
Purple Dot	151.955 MHz
	154.515 MHz
	154.540 MHz
Blue Dot	154.570 MHz	Multi-Use Radio Service (MURS); 2 watts, 20 kHz bandwidth
Green Dot	154.600 MHz	Multi-Use Radio Service (MURS); 2 watts, 20 kHz bandwidth
	158.400 MHz	Itinerant
	158.4075 MHz	Itinerant (narrow band)

UHF and GMRS frequencies

Name	Frequency	Notes
White Dot	462.575 MHz	GMRS
Black Dot	462.625 MHz	GMRS
Orange Dot	462.675 MHz	GMRS
Brown Dot	464.500 MHz	Itinerant
Yellow Dot	464.550 MHz	Itinerant
Silver Star	467.850 MHz
Gold Star	467.875 MHz
Red Star	467.900 MHz
Blue Star	467.925 MHz
(Brown dpx)	469.500 MHz	Itinerant
(Yellow dpx)	469.550 MHz	Itinerant