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Adjacent frequencies are often used by illegal operators using modified CB or amateur radio equipment. Operators sometimes refer to this activity as freebanding . The Industrial/Business Radio Pool of the Private Land Mobile Radio Services has several channels just above the Citizen's Band, at 27.430, 27.450, 27.470, 27.490, 27.510, and 27.530 MHz.
Citizens band radio (CB radio) is a land mobile radio system, a system allowing short-distance one-to-many bidirectional voice communication among individuals, using two-way radios operating near 27 MHz (or the 11-m wavelength) in the high frequency or shortwave band.
CB was, and still is, designed for short-distance (local) communications needs. US FCC law prohibits communicating with any station more than 250 km (155.3 miles) on CB frequencies.(150-mile rule deleted by FCC September 2017) Like many rules regarding the HF CB services, the distance prohibition is largely ignored and unenforced. Often as a ...
Citizens Broadband Radio Service (CBRS) is a 150 MHz wide broadcast band of the 3.5 GHz band (3550 MHz to 3700 MHz) in the United States. [1] In 2017, the US Federal Communications Commission (FCC) completed a process which began in 2012 to establish rules for commercial use of this band, while reserving parts of the band for the US Federal Government to limit interference with US Navy radar ...
The 27 MHz CB27/81 Bandplan is a list of the channel frequencies for FM CB radio in the United Kingdom.. Unlike CB usage in the United States, and subsequently elsewhere in the world, the original UK 40 channels progress in order with 10 kHz spacing.
The following television stations broadcast on digital or analog channel 19 (UHF frequencies covering 500-506 MHz) in Canada: CBFT-DT in Montreal, Quebec; CICA-DT in Toronto, Ontario; CKRT-DT-6 in Trois-Pistoles, Quebec; The following television stations operate on virtual channel 19 in Canada: CICA-DT in Toronto, Ontario
CB users sometimes migrate to "out of band" channels/frequencies, most famously 27.555 MHz, referred to as "Triple Nickel." 27.555 MHz is well above the 40 channel CB standard allowing for a more private conversation and enhanced radio communications. Modified equipment is usually required to access this frequency. Turn and burn
This personal radio service uses channelized frequencies around 462 and 467 MHz in the ultra high frequency (UHF) band. It does not suffer the interference effects found on citizens' band (CB) at 27 MHz, or the 49 MHz band also used by cordless telephones, toys, and baby monitors. FRS uses frequency modulation (FM) instead of amplitude ...