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Business band

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The business band is the name used by US scanner hobbyists who listen to Federal Communications Commission licensees using Industrial/Business pool frequencies. The regulations listing frequencies in this pool are contained in Subpart C of Part 90, Title 47 CFR.

Contents

Artifacts

The pool describes a series of frequencies on the VHF and UHF two-way radio bands. They are reserved for use by businesses, and, although the requirement is sometimes overlooked, in the USA they require a license from the Federal Communications Commission prior to use. The exception to this is five specific frequencies that are now part of the Multi-Use Radio Service, which permits unlicensed operation on these frequencies, provided the output power does not exceed 2 watts.

The electromagnetic spectrum between approximately 450 and 470 MHz is used largely for UHF business communications, although this spectrum is not exclusively for business use. In some large metropolitan areas, such as New York, the UHF-T band (between 470 and 512 MHz) is also used, due to congestion on the standard VHF or UHF bands. There are also a number of specific frequencies, in both the VHF and UHF spectrum, that are for business use; most of these have color-coded names, such as Blue Dot or Red Star.

History

In the 1980s,[dubious – discuss] the FCC acknowledged the need for private frequencies for business to transmit on, and, with congressional authorization, reserved a selection of frequencies in the 450-470MHz range for this purpose.[citation needed] Business Radio Service (BRS) is a collection of 56[dubious – discuss] UHF frequencies selected by the FCC, that are reserved exclusively for business use. Many enterprises choose to use these frequencies because they are exclusive, and therefore have less cross-chatter with unaffiliated parties. To obtain a license for conducting transmissions at these frequencies, licensees must be registered as a business with the Internal Revenue Service.[citation needed]

Common[dubious – discuss] Low Band Business Band Frequencies

Name Frequency Notes
27.490 MHz low power, itinerant
27.510 MHz low power
27.553[dubious – discuss] 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, itinerant

Common VHF Business Band Frequencies

Name Frequency Notes
Red Dot 151.625 MHz itinerant
151.820 MHz un-licensed Multi-Use Radio Service (MURS); 2 watts, 11.25kHz Bandwidth
151.880 MHz un-licensed Multi-Use Radio Service (MURS); 2 watts, 11.25kHz Bandwidth
151.940 MHz un-licensed Multi-Use Radio Service (MURS); 2 watts, 11.25kHz Bandwidth
Purple Dot 151.955 MHz
154.515 MHz
154.540 MHz
Blue Dot 154.570 MHz un-licensed Multi-Use Radio Service (MURS); 2 watts, 12.5kHz Bandwidth
Green Dot 154.600 MHz un-licensed Multi-Use Radio Service (MURS); 2 watts, 12.5kHz Bandwidth

Common UHF Business Band Frequencies

Name Frequency Notes
White Dot 462.575 MHz
Black Dot 462.625 MHz
Orange Dot 462.675 MHz
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
469.500 MHz itinerant
469.550 MHz itinerant
v • d • e
Two-way radio

Amateur and hobbyist
Amateur radio • Amateur radio repeater • Citizens' band radio • Family Radio Service
General Mobile Radio Service • Mobile rig • Multi-Use Radio Service • PMR446 • LPD433 • UHF CB (Australia)

Aviation (aeronautical mobile)
Air traffic control • Aircraft emergency frequency • Airband • Mandatory frequency airport • Single Frequency Approach • UNICOM

Land-based commercial and government mobile
Business band • Base station • Mobile radio • Professional Mobile Radio • Radio repeater • Specialized Mobile Radio • Trunked radio system • Walkie talkie

Marine (shipboard)
2182 kHz • Coast radio station • Marine VHF radio • Maritime mobile amateur radio

Signaling / Selective calling
CTCSS • Dual-tone multi-frequency • D-STAR • MDC-1200 • Push to talk • Quik Call I • Quik Call II • Selcall

System elements and principles
Antenna • Audio level compression • Automatic vehicle location • APRS • Call sign • CAD • DC remote • Dispatch • Fade margin • Link budget • Rayleigh fading • Tone remote • Voice procedure • Voting (diversity combining)

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Business_band". A list of authors is available in Wikipedia.
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