• Origin
• US loss of 2.31 to 2.39 GHz

List of notable frequencies

• 2,304.1 MHz Region 2 CW & SSB calling frequency^[2]
• 2,320.2 MHz Region 1 Narrow-band calling frequency^[3]
• 2.400–2.485 GHz: Spread Spectrum band for general radio-controlled aircraft recreational use (amateur radio license holders have 2.39–2.45 GHz licensed for their general use in the USA) and using both frequency-hopping spread spectrum and direct-sequence spread spectrum RF technology to maximize the number of available frequencies on this band, especially at organized events in North America.^[1][2]
• 2,450 MHz Operating frequency of ISM devices.

United States

In the United States, the 13 cm band comprises frequencies in two segments stretching from 2.300 to 2.310 GHz, and from 2.390 to 2.450 GHz.^[3] (The segment from 2.310 to 2.390 GHz was withdrawn from the amateur service and reallocated to direct satellite radio broadcasting, e.g., Sirius XM Radio.) The segment, 2.390 to 2.417 GHz, is domestically allocated amateur radio on a primary basis, while the remainder of the band is only available on a secondary basis. It is authorized to all amateur radio licensees who hold a Technician or higher class license (US), or a Basic or higher license (Canada). The band is allocated on a shared basis with other services, and U.S. Federal Communications Commission (FCC) Rules specify that amateurs may not cause interference to and must accept interference from other services authorized by other nations, and by radio-location, fixed, and mobile stations (except aeronautical) authorized by the FCC.^[4] As in the rest of the world, US stations in the amateur service are not protected from interference caused by industrial, scientific, and medical equipment.

The bandplan published by the American Radio Relay League recommends frequencies based on intended activity in the band.^[5]

See also

• Amateur radio frequency allocations
• High-speed multimedia radio

References