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  2. KHOJ (AM) - Wikipedia

    en.wikipedia.org/wiki/KHOJ_(AM)

    The studios are on Hampton Avenue in St. Louis. By day, KHOJ is powered at 12,000 watts. But to avoid interference to other stations on 1460 AM, at night power is greatly reduced to 210 watts. The AM transmitter is located north of St. Charles. Programming is also heard on two FM translators: 96.7 K244FO in Crestwood and 102.9 K275CI in St ...

  3. LPD433 - Wikipedia

    en.wikipedia.org/wiki/LPD433

    LPD433 (low power device 433 MHz) is a UHF band in which license free communication devices are allowed to operate in some regions. The frequencies correspond with the ITU region 1 ISM band of 433.050 MHz to 434.790 MHz.

  4. Police radio - Wikipedia

    en.wikipedia.org/wiki/Police_radio

    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 .

  5. Voice-activated radio-dispatched alarm - Wikipedia

    en.wikipedia.org/wiki/Voice-activated_radio...

    A voice-activated radio-dispatched alarm, or VARDA-alarm, is a type of burglar alarm that, when activated or "tripped", broadcasts the type of the alarm and the transmitter location over the local police radio frequency using a pre-recorded audio message. [1] In 1968, the voice-activated radio dispatched alarm (VARDA), was invented.

  6. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [ 1 ] The codes, developed during 1937–1940 and expanded in 1974 by the Association of Public-Safety Communications Officials-International (APCO), allow brevity and standardization of message traffic.

  7. Radio scanner - Wikipedia

    en.wikipedia.org/wiki/Radio_scanner

    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.

  8. Greene, New York - Wikipedia

    en.wikipedia.org/wiki/Greene,_New_York

    ZIP code: 13778. FIPS code: 36-017-30422: Website: nygreene.com: Greene is a town in Chenango County, New York, United States. The population was 5,604 at the 2010 ...

  9. Home Office radio - Wikipedia

    en.wikipedia.org/wiki/Home_Office_radio

    By the last quarter of 2006 police forces had migrated radio networks from the UHF frequencies to TeTRa on the Airwave network, followed by ambulance services in 2007 and fire services in 2010. [6] Airwave now has a nationwide network of more than 3,000 sites and provides secure voice and data communications to over 300 public safety organisations.

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    related to: st charles city police scanner frequencies by zip code 13778 free