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StarCom21 is a statewide public safety trunked radio system in Illinois. Owned and operated by Motorola Solutions, the State of Illinois is a major partner in the system. It is used by all Illinois State Police posts as well as the Illinois State Toll Highway Authority (ISTHA) Maintenance and Police divisions.
The following is a list of FCC-licensed radio stations in the U.S. state of Illinois, which can be sorted by their call signs, frequencies, cities of license, licensees, and programming formats. List of radio stations
The following is a list of FCC-licensed radio stations in the U.S. state of Washington, which can be sorted by their call signs, frequencies, cities of license, licensees, and programming formats. List of radio stations
The first police radio systems were implemented in Detroit in 1928, when the Detroit Police Department set up a one-way radio system to broadcast crime information to police cars. [2] The frequency was assigned the call sign "KOP" by the Federal Communications Commission .
The frequencies used are within the 70-centimeter band, which is currently otherwise reserved for government and amateur radio operations in the United States and most nations worldwide. LPD hand-held radios are authorized for licence-free voice communications use in most of Europe using analog frequency modulation (FM) as part of short range ...
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.
An Icom IC-R5 hand-held scanner A GMRS radio that also has scanning capabilities. A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases.
He thought about the modern, invisible signals of wireless calls, Wi-Fi and police radio darting through the 19th-century buildings." [20] Vigilante was backed by a seed round of $1 million, [3] [25] led by Founders Fund. [26] The Vigilante app was released to New York City, [20] in the App Store [2] on October 26, 2016.