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Limits on UHF effective radiated power, originally very restrictive, were relaxed. A UHF TV station could be licensed for up to five megawatts of carrier power, unlike VHF TV stations, which were limited to 100 (Channels 2–6) or 316 kilowatts of carrier power (Channels 7–13) depending on their channel.
The Pan-American television frequencies are different for terrestrial and cable television systems. Terrestrial television channels are divided into two bands: the VHF band which comprises channels 2 through 13 and occupies frequencies between 54 and 216 MHz, and the UHF band, which comprises channels 14 through 36 and occupies frequencies between 470 and 608 MHz.
VHF analog TV ceased in New Zealand on 1 December 2013. Channels 10 and 11 weren't added until the late 1980s (except Indonesia). VHF analog TV channel 1A is only used in Indonesia. VHF is currently no longer used for television in Indonesia (except in some regions until 2022) and only UHF is used for both analog and digital television, as in ...
Land mobile use of a TV channel (TV RF channels 14-20 only) LM As "LM" is used in the FCC database to indicate reallocation of an entire channel, but not to identify individual users transmitting in that spectrum, a 6 MHz LM allocation does not itself carry a TV-style call sign. The spectrum of TV channels 14-20 is called "T-band" in LMR use. [17]
VHF radio is also used for marine Radio [8] as per its long-distance reachability comparing UHF frequencies. Example allocation of VHF–UHF frequencies: [9] Radionavigation 60: 84–86 MHz; Fixed Maritime Mobile: 130–135.7 MHz; Fixed Aeronautical radio navigation: 160–190 MHz; Broadcasting Aeronautical Radionavigation: 255–283.5 MHz
UHF TV signals are generally more degraded by moisture than lower bands, such as VHF TV signals. As the visual horizon sets the maximum range of UHF transmission to between 30 and 40 miles (48 to 64 km) or less, depending on local terrain, the same frequency channels can be reused by other users in neighboring geographic areas (frequency reuse).
The commission decided to have UHF TV channels 14–51 at frequency ... and 13% via satellite complementary coverage. ... limits reception to ...
According to the FCC, as of March 31, 2011, there are 1022 UHF commercial television stations, 360 VHF commercial television stations, 285 UHF educational television stations and 107 VHF educational television stations, plus 439 Class A UHF television stations, 76 Class A VHF television stations, 3043 UHF television translators, 1411 VHF television translators, 1656 UHF low-power television ...