Chunks of Spectrum: A Sample of U.S. Radio Airwave Allocations and Uses


49.6 - 50.0 MHzCordless phone handsets, baby monitors

54.0 - 72.0 MHzTV channels 2, 3 and 4

88.0 - 108.0 MHzFM Broadcasting, wireless microphones

137.0 - 138.0 MHzNon-voice, non-geostationary mobile satellite service (little LEO)

157.7 - 158.1 MHzPaging, rural phones

225.0 - 328.6 MHzDefense, presidential systems

806.0 - 821.0 MHzSpecialized mobile radios (SMR)

930.0 - 931.0 MHzNarrowband personal communications services (PCS) for paging and two-way data transmission

1215.0 - 1240.0 MHzAir route surveillance, missile-tracking, Global Positioning System satellites

1610.0 - 1626.5 MHzMobile satellite services above 1 GHz (Big LEO)

1850.0 - 1990.0 MHzBroadband personal communications services

2450.0 - 2483.5 MHzFixed microwave, including heaters and ovens

3.7 - 4.2 GHzSatellite downlink for cable TV

5.6 - 5.65 GHzAeronautical Terminal Doppler Weather (wind shear)

12.2 - 12.7 GHzDirect broadcast satellite downlinks

20.2 - 21.2 GHzDefense satellite downlinks including Military Strategic and Tactical Relay Satellite (MILSTAR)

Source: New Signals Press, Falls Church, Va.

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