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2. Radio scanner - Wikipedia

   en.wikipedia.org/wiki/Radio_scanner

   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. The term scanner generally refers to a communications receiver that is ...

3. Police radio - Wikipedia

   en.wikipedia.org/wiki/Police_radio

   Police radio. Police radio is a radio system used by police and other law enforcement agencies to communicate with one another. Police radio systems almost always use two-way radio systems to allow for communications between police officers and dispatchers . Most modern police radio systems are encrypted, and many jurisdictions have made ...

4. Project 25 - Wikipedia

   en.wikipedia.org/wiki/Project_25

   Project 25 ( P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1] P25 radios are a direct replacement for analog UHF (typically ...

5. Let the city listen: The NYPD should keep police radio ...

   www.aol.com/let-city-listen-nypd-keep-080000195.html

   The NYPD has begun encrypting scanner radios that the press and the public have used to monitor basic police communications for more than 90 years. While the desire to put such communications on ...

6. Los Angeles Police Department resources - Wikipedia

   en.wikipedia.org/wiki/Los_Angeles_Police...

   The Los Angeles Police Department (LAPD), the primary law enforcement agency of Los Angeles, California, United States, maintains and uses a variety of resources that allow its officers to effectively perform their duties. The LAPD's organization is complex with the department divided into bureaus and offices that oversee functions and manage ...

7. Trunked radio system - Wikipedia

   en.wikipedia.org/wiki/Trunked_radio_system

   A trunked radio system is a two-way radio system that uses a control channel to automatically assign frequency channels to groups of user radios. In a traditional half-duplex land mobile radio system a group of users (a talkgroup) with mobile and portable two-way radios communicate over a single shared radio channel, with one user at a time ...

8. Statewide government trunked radio systems in Australia

   en.wikipedia.org/wiki/Statewide_government_trunk...

   The network is a digital 9600 bps Project 25 (commonly referred to as P25 or APCO-25) Phase 2 trunked radio system operating in the UHF band between 403 MHz and 430 MHz in 12.5 kHz steps. End user equipment is supplied mostly by Motorola , and consists primarily of Motorola APX series mobiles and portables two-way radios (although Benelec ...

9. Media documentation of the September 11 attacks - Wikipedia

   en.wikipedia.org/wiki/Media_documentation_of_the...

   The large spread of images and video along with the lasting impact on the population caused many of the images and videos to be in the top of the list of performances given recognition in mid-2002. In broadcast journalism, the Peabody Awards went to ABC and NPR for their channels' documentation of the attacks, and the Pulitzer Prizes were ...