Sort of a "catch-all". Of course, aren't all radio transmitters either fixed or mobile???
See also: pirate radio frequencies, HF marine bands, HF aeronautical bands and of course the peskies. The 6765 kHz to 7000 kHz band (43 meters) is a fixed/mobile allocation and is the most popular band for pirate broadcasters in the Americas.
Legal shortwave broadcasters are often found on the upper and lower edges of the shortwave bands that often include the fixed mobile allocations.
The fixed/mobile bands contain a mixture of all sorts of random utility or ute communications, some broadcasters operating outside the shortwave broadcast bands, pirate broadcasters, "peskies" (unlicensed or UNID two-way communications), military voice and data networks, industrial and business users, military propagation beacons (letter beacons), government networks such as the Civil Air Patrol, SHARES, SECURE, COTHEN and numerous others, NGOs, drug traffickers, diplomatic stations, fishnet or fishing radio buoys/beacons, spy number stations, over the horizon radar, marine weather transmissions in both voice and fax modes, and dozens of other users. Frequencies in the 25-30 MHz region are also used by freeband CB radio operators, militia and paramilitary groups, military data links, land mobile radio systems and the 26960 kHz - 27410 kHz range includes the legal 40 Citizen's Band channels and 5 remote control and data link channels.
- 1610 kHz - 1710 kHz - ITU regions 1 and 3, these frequencies are used for mediumwave broadcasting in ITU region 2
- 1710 kHz - 1800 kHz - fishing net radio buoys or "fishnet beacons" are often found here
- 3150 kHz - 3200 kHz
- 4000 kHz - 4063 kHz - shared with maritime mobile (marine mobile has secondary allocation)
- 4438 kHz - 4650 kHz
- 5005 kHz - 5450 kHz - includes the channelized 60 meter amateur band
- 5370 kHz - 5950 kHz
- 6765 kHz - 7000 kHz - 43 meters, popular pirate radio band, but also very popular with the pescadores
- 7300 kHz - 8195 kHz - shared with maritime mobile (marine mobile has secondary allocation from 8000 kHz to 8195 kHz)
- 9040 kHz - 9500 kHz
- 9900 kHz - 9995 kHz
- 10150 kHz - 11175 kHz
- 11400 kHz - 11650 kHz
- 11975 kHz - 12330 kHz
- 13360 kHz - 13600 kHz - also Part 15 usage (22 meter band, 13.56 MHz center, 13553-13567 kHz)
- 13800 kHz - 14000 kHz
- 14350 kHz - 14990 kHz
- 15600 kHz - 16460 kHz
- 17360 kHz - 17550 kHz
- 18030 kHz - 18068 kHz
- 18168 kHz - 19990 kHz
- 20010 kHz - 21000 kHz
- 22855 kHz - 23200 kHz
- 23350 kHz - 24890 kHz
- 25010 kHz - 25550 kHz - 25.02 MHz to 25.32 MHz 25020 kHz to 25320 kHz used for oil spill cleanup as part of the Business Radio Service
- 26100 kHz - 26955 kHz - generally considered a "military" band - heavy freeband CB 11 meter channel use
- 26957 kHz - 27283 kHz - ISM band (27.12 MHz center 27120 kHz, +/- 163 kHz, covering CB channels 1-28)
- 26960 kHz - 27410 kHz - shared with the CB band, remote control ISM devices and heavy Part 15 usage
- 27410 kHz - 27540 kHz - 27.43 MHz to 27.53 MHz 27430 kHz to 27530 kHz 20 kHz steps is shared with business radio - heavy freeband CB use
- 27540 kHz - 28000 kHz - generally considered a "military" band - heavy freeband CB 11 meter channel use
- 29710 kHz - 30000 kHz - 29.71 MHz to 29.79 MHz 29710 kHz to 29790 kHz 20 kHz steps allocated to the Business/Industrial Radio Pool in the USA
Note: in many countries, the fixed/mobile service will be allocated with primary or secondary protection, to other MF and HF bands, including broadcasting, portions of amateur bands, aeronautical mobile and maritime mobile bands.
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