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Note: Information in the chart has been superseded by the information in File:United States Frequency Allocations Chart 2016 - The Radio Spectrum.pdf, which was downloaded from the US Department of Commerce web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.
Frequency allocation (or spectrum allocation) is the part of spectrum management dealing with the designation and regulation of the electromagnetic spectrum into frequency bands, normally done by governments in most countries. [1]
California State Parks is the state park system for the U.S. state of California. The system is administered by the California Department of Parks and Recreation, a department under the California Natural Resources Agency. The California State Parks system is the largest state park system in the United States. [5]
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.
California State Parks' first state marine park. Candlestick Point State Recreation Area: State recreation area San Francisco: 204 83 1972 Constitutes California's first urban state recreation area, on the west shore of San Francisco Bay. [41] Cardiff State Beach: State beach San Diego: 507 205 1949 Provides a sandy, warm-water beach outside ...
In 1927, the Federal Radio Commission (FRC) was created to take over the regulation of U.S. radio stations, and it began a series of frequency shifts to coordinate station assignments. Effective November 11, 1928, the FRC divided the AM band transmitting frequencies into three classification: Local, Regional, and Clear Channel.
A Yaesu FT-857D tuned to 50.125 MHz, the traditional 6-meter single-sideband calling frequency in the United States. [1] The 6-meter band is the lowest portion of the very high frequency (VHF) radio spectrum (50.000-54.000 MHz) internationally allocated to amateur radio use. The term refers to the average signal wavelength of 6 meters. [a]
Citizens Broadband Radio Service (CBRS) is a 150 MHz wide broadcast band of the 3.5 GHz band (3550 MHz to 3700 MHz) in the United States. [1] In 2017, the US Federal Communications Commission (FCC) completed a process which began in 2012 to establish rules for commercial use of this band, while reserving parts of the band for the US Federal Government to limit interference with US Navy radar ...