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  2. File:United States Frequency Allocations Chart 2016 - The ...

    en.wikipedia.org/wiki/File:United_States...

    Original file (6,300 × 4,031 pixels, file size: 952 KB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  3. File:GMRS and FRS Frequency Spectrum Chart.svg - Wikipedia

    en.wikipedia.org/wiki/File:GMRS_and_FRS...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...

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  5. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    The 1850–1990 MHz PCS band is divided into six frequency blocks (A through F). Each block is between 10 MHz and 30 MHz in bandwidth. Each block is between 10 MHz and 30 MHz in bandwidth. License (A or B) is granted for Major Trading Areas (MTAs).

  6. File:United States Frequency Allocations Chart 2011 - The ...

    en.wikipedia.org/wiki/File:United_States...

    Note: Information in the chart has been superseded by the information in File:United States Frequency Allocations Chart 2016 - The Radio Spectrum.pdf, which was downloaded from the US Department of Commerce web site and archived at archive.org.

  7. Noise curve - Wikipedia

    en.wikipedia.org/wiki/Noise_curve

    The result is determined by the lowest curve which is not touched by the measured spectrum at any position in the audio frequency range. Noise curves serve as uniform measuring standards and are referred to by many noise regulations covering a variety of locations from concert halls, rock concerts, lecture rooms and offices to clay target ...

  8. Cherry Ripe (numbers station) - Wikipedia

    en.wikipedia.org/wiki/Cherry_Ripe_(numbers_station)

    Cherry Ripe is the nickname of a discontinued shortwave numbers station that used several bars from the folk song "Cherry Ripe" as an interval signal. The station, which appears to have commenced transmissions in the late 1960s, is believed to have been controlled by the British Secret Intelligence Service .

  9. FMQB - Wikipedia

    en.wikipedia.org/wiki/FMQB

    Friday Morning Quarterback (better known as FMQB) was a trade magazine which covered the radio and music industries in the United States. [2] Its coverage included programming, management, promotion, marketing, and airplay for music formatted radio.