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Commercial and Government Radio Stations of the U.S. (6/30/1927), pages 87–92 7/1/1927 Call letters: Annual Report of the FRC (6/30/1927), pages 55–64 11/1/1927 Frequency: Jurisdiction of Radio Commission (2/1928), pages 14–17 Frequencies from 600 to 1000 kHz 12/1/1927 Frequency: Jurisdiction of Radio Commission (2/1928), pages 10–12
Weather radio: the National Oceanic and Atmospheric Administration operates the NOAA Weather Radio service of over 1000 stations nationwide, operating on its own small designated 162 MHz FM band. Two way radio services take up most of the rest of the geomagnetic spectrum, including marine VHF radio, amateur radio, the aforementioned citizens ...
Reliable radio control uses bands dedicated to the purpose. Radio-controlled toys may use portions of unlicensed spectrum in the 27 MHz or 49 MHz bands, but more costly aircraft, boat, or land vehicle models use dedicated radio control frequencies near 72 MHz to avoid interference by unlicensed uses. The 21st century has seen a move to 2.4 GHz ...
The new band plan allowed Sprint Corporation to deploy CDMA and LTE technologies on this band. The transition to the new band plan is still ongoing as of August 2016 although it's reaching its final stages. [7] Citizens Broadband Radio Service (CBRS) is the first shared access band available to the carriers. Unlike other bands listed above ...
The North American College and Community Radio Chart, often abbreviated as NACC, is a weekly Top 200 radio chart launched in January 2017. [1] As of 2018, the NACC chart receives weekly airplay reports from over 200 radio stations across North America. [2] [3]
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In the United States, FM broadcasting stations currently are assigned to 101 channels, designated 87.9 to 107.9 MHz, within a 20.2 MHz-wide frequency band, spanning 87.8–108.0 MHz. In the 1930s investigations were begun into establishing radio stations transmitting on "Very High Frequency" (VHF) assignments above 30 MHz.
FM radio: 87.5–108 MHz, 76–90 MHz in Japan Frequency Modulation (FM) VHF band II: Usually music, due to the clarity and high bandwidth of FM. Relatively short range VHF high (TV) 174–216 MHz vestigial sideband modulation for analog video, and FM for analog audio; 8-VSB or OFDM for digital broadcast VHF band III: Channels 7–13 use 174 ...