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AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands.
List of AM Expanded Band station assignments issued by the Federal Communications Commission on March 17, 1997 is a review of the initial eighty-eight assignments, made by the Federal Communications Commission (FCC), for populating in the United States the "Expanded Band" frequencies of 1610 to 1700 kHz, which had been recently added to the AM broadcasting band.
The extended mediumwave broadcast band, commonly known as the AM expanded band, refers to the broadcast station frequency assignments immediately above the earlier upper limits of 1600 kHz in International Telecommunication Union (ITU) Region 2 (the Americas), and 1602 kHz in ITU Regions 1 (Europe, northern Asia and Africa) and 3 (southern Asia and Oceania).
Radio Broadcast Stations (FCC) 1/1/1938 Call letters: Radio Broadcast Stations (FCC) Linked site is missing the last two pages Frequency: Radio Broadcast Stations (FCC) State/city: Radio Broadcast Stations (FCC) 1/1/1939 Call letters Radio Broadcast Stations (FCC) Frequency Radio Broadcast Stations (FCC) State/city: Radio Broadcast Stations ...
Typical mast radiator of a commercial medium wave AM broadcasting station, Chapel Hill, North Carolina, U.S. Medium wave (MW) is a part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with more limited sound quality than FM stations on the FM broadcast band. During the ...
Grand Canyon Gateway Broadcasting, LLC Classic country KYMO: 1080 East Prairie, Missouri: United States Delta Broadcasting, LLC Classic country WARB: 700 Dothan, Alabama: United States Alarado Media, LLC Urban contemporary WATX: 1220 Hamden, Connecticut: United States Clark Smidt Media, LLC Oldies WBBT: 1340 Lyons, Georgia: United States T.C.B ...
Multiple; see Shortwave bands: Mostly AM and single-sideband (SSB) modes high frequency (HF) Very long range through "skipping". Standard time frequencies can be heard here. VHF low 54–88 MHz: vestigial sideband modulation for analog video, and FM for analog audio; 8-VSB or OFDM for digital broadcast very high frequency (VHF) band I
But AM has recently become a nostalgic specialty interest on the shortwave ham bands. [5] A number of AMers operate vintage vacuum tube transmitters in conjunction with separate receivers. Some operators have even obtained old AM broadcast transmitters from radio stations that have upgraded their equipment.