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The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz).Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication.
The following chart lists frequencies on the broadcast company band, and which classes broadcast on these frequencies; Class A and Class B, 10,000 watt and higher (full-time) stations in North America which broadcast on clear-channel station frequencies are also shown.
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 (FCC) 1/1/1940 Call letters: Radio Broadcast Stations (FCC) Linked site is missing pages 96–97 Frequency: Radio Broadcast ...
The following is a list of AM radio stations transmitting in C-QUAM stereo throughout the world, which can be sorted by their call signs, frequencies, cities of license, country of origin, licensees, and programming formats.
Frequencies Modulation Frequency range Notes longwave: 148.5–283.5 kHz: amplitude modulation (AM) low frequency (LF) Mostly used in Europe, North Africa, and Asia: AM radio (medium wave) 525–1606.5 kHz, 525–1705 kHz in N. America, Australia and the Philippines. amplitude modulation (AM) medium frequency (MF)
This page was last edited on 25 January 2025, at 18:53 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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.
The range originally adopted in 1945 began with channel 201 (88.1 MHz), or a value high enough to avoid confusion with television channel numbers, [2] which over the years have had values ranging from 1 to 83. Having a gap between the highest TV channel number and the lowest FM channel number allowed for expansion, which occurred in 1978 when ...