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  2. Two-way radio - Wikipedia

    en.wikipedia.org/wiki/Two-way_radio

    Naval air traffic controller communicates with aircraft over a two-way radio headset A variety of portable handheld two-way radios for private use. A two-way radio is a radio transceiver (a radio that can both transmit and receive radio waves), which is used for bidirectional person-to-person voice communication with other users with similar radios, [1] in contrast to a broadcast receiver ...

  3. MDC-1200 - Wikipedia

    en.wikipedia.org/wiki/MDC-1200

    MDC (Motorola Data Communications), also known as Stat-Alert, MDC-1200 and MDC-600, is a Motorola two-way radio low-speed data system using audio frequency shift keying, (AFSK). MDC-600 uses a 600 baud data rate. MDC-1200 uses a 1,200 baud data rate. Systems employ either one of the two baud rates.

  4. Astro (Motorola) - Wikipedia

    en.wikipedia.org/wiki/Astro_(Motorola)

    Project 25 (also known as P25) is a suite of digital radio communications standards designed specifically for law enforcement, fire, and medical services to communicate with each other during emergencies. [2] ASTRO 25 is now the most widely used P25 mission-critical voice and data communication network in the world. [3]

  5. List of radios - Wikipedia

    en.wikipedia.org/wiki/List_of_radios

    The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.

  6. City, county hear 2-way radio network proposal - AOL

    www.aol.com/news/city-county-hear-2-way...

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  7. NXDN - Wikipedia

    en.wikipedia.org/wiki/NXDN

    The NXDN protocol and the communications products in which it is used are intended for commercial Private Land Mobile Radio (PLMR) [6] and public safety communications systems. The technology satisfies the U.S. Federal Communications Commission (FCC) mandate requiring all communications systems covered by Part 90 regulations to use narrowband ...

  8. EF Johnson Technologies - Wikipedia

    en.wikipedia.org/wiki/EF_Johnson_Technologies

    E.F. Johnson Museum, Waseca, Minnesota EF Johnson Citizen Band walkie-talkie The company was founded in 1923 by Edgar F. Johnson and his wife Ethel Johnson. The company began as a mail order business, selling radio transmitting parts to amateurs and early radio broadcasters from space shared with a woodworking shop located in downtown Waseca.

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