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  2. Police radio code - Wikipedia

    en.wikipedia.org/wiki/Police_radio_code

    A police radio code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include " 10 codes " (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes , or ...

  3. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Credit for inventing the codes goes to Charles "Charlie" Hopper, communications director for the Illinois State Police, District 10 in Pesotum, Illinois. Hopper had been involved in radio for years and realized there was a need to abbreviate transmissions on State Police bands. [ 6 ]

  4. List of Illinois area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Illinois_area_codes

    This is a list of the area codes in the state of Illinois and its numbering plan areas in the North American Numbering Plan.. All NPAs within Illinois. 217/447: Central Illinois, including the region running west from the Illinois-Indiana border through Danville, Effingham, Champaign–Urbana, Decatur, Springfield, Quincy until Illinois' western border with Missouri and Iowa

  5. List of radio stations in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_stations_in...

    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

  6. StarCom21 - Wikipedia

    en.wikipedia.org/wiki/StarCom21

    StarCom21 uses about 186 radio towers throughout the state of Illinois, many owned by state agencies. It uses radio channels in the 700 and 800 MHz bands, all licensed to the State of Illinois . It uses APCO-25 9600 baud control channel frequencies and APCO-25 digital modulation.

  7. List of television stations in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_television...

    Area served City of license VC RF Callsign Network Notes Carbondale/~Paducah KY: Johnston City: 15 15 W15BU-D: 3ABN: 3ABN Proclaim on 15.2, 3ABN Dare to Dream on 15.3, 3ABN Latino on 15.4, 3ABN Kids on 15.5, 3ABN Radio on 15.6, 3ABN Radio Latino on 15.7, Radio 74 on 15.8

  8. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    (VFR squawk code for airspace 5,000 feet (1,500 m) and below prior to 15 March 2007 when replaced by the international 7000 code for VFR traffic.) [5] 0022 Germany (VFR squawk code for airspace above 5,000 feet (1,500 m) – prior to 15 March 2007 when replaced by the international 7000 code for VFR traffic.) [5] 0025 Germany

  9. WSIQ - Wikipedia

    en.wikipedia.org/wiki/WSIQ

    WSIQ is an AM radio station licensed to Salem, Illinois and broadcasting on the frequency of 1350 kHz. The format for WSIQ is Country music and is known as Q 92.1 . Previous call letters were WJBD (AM) and are still used for the FM station.