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2. 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 ...

3. Family Radio Service - Wikipedia

   en.wikipedia.org/wiki/Family_Radio_Service

   The Family Radio Service ( FRS) is an improved walkie-talkie radio system authorized in the United States since 1996. This personal radio service uses channelized frequencies around 462 and 467 MHz in the ultra high frequency (UHF) band. It does not suffer the interference effects found on citizens' band (CB) at 27 MHz, or the 49 MHz band also ...

4. Nextel - Wikipedia

   en.wikipedia.org/wiki/NEXTEL

   Nextel was the first company to implement a nationwide push-to-talk system similar to a walkie-talkie, marketed as DirectConnect. Unlike other cellular networks, the Nextel network operated in the Specialized Mobile Radio band, and Nextel was one of the first providers in the United States to offer a national digital cellular coverage footprint.

5. Citizens band radio - Wikipedia

   en.wikipedia.org/wiki/Citizens_band_radio

   Cobra 50 WX ST Handheld CB Radio. Citizens band radio ( CB radio) is a land mobile radio system, a system allowing short-distance one-to-many bidirectional voice communication among individuals, using two-way radios operating near 27 MHz (or the 11-m wavelength) in the high frequency or shortwave band. Citizens band is distinct from other ...

6. Boost Mobile (United States) - Wikipedia

   en.wikipedia.org/wiki/Boost_Mobile_(United_States)

   www .boostmobile .com. Boost Mobile is an American wireless service provider owned by Dish Wireless. It uses the Dish, AT&T and T-Mobile networks to deliver wireless services. As of Q3 2023, Boost Mobile, along with its sister brands Boost Infinite, Gen Mobile, and Ting Mobile had 7.50 million customers. [1]

7. 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, in contrast to a broadcast receiver, which ...

8. General Mobile Radio Service - Wikipedia

   en.wikipedia.org/wiki/General_Mobile_Radio_Service

   The General Mobile Radio Service ( GMRS) is a land-mobile FM UHF radio service designed for short-range two-way voice communication and authorized under part 95 of the US FCC code. It requires a license in the United States, but some GMRS compatible equipment can be used license-free in Canada. The US GMRS license is issued for a period of 10 ...

9. 4 smartphone rules parents should follow, according to a ...

   www.aol.com/finance/4-smartphone-rules-parents...

   Earlier this month, the board of the Los Angeles Unified School District—the second largest school district in the country—approved a total ban on phones at school, set to take effect by the ...