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2. eXtreme Radio Service - Wikipedia

   en.wikipedia.org/wiki/EXtreme_Radio_Service

   The TriSquare TSX300. eXtreme Radio Service (eXRS) is a proprietary personal communication technology marketed by TriSquare in the United States. The radios, which are similar to other walkie-talkies, use the Part 15 low power communication 915 MHz band, and employ frequency-hopping spread spectrum FM technology to attempt to address some of the perceived shortcomings of Family Radio Service ...

3. 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.

4. General Mobile Radio Service - Wikipedia

   en.wikipedia.org/wiki/General_Mobile_Radio_Service

   GMRS radios are typically handheld portable (walkie-talkies) much like Family Radio Service (FRS) radios, and they share a frequency band with FRS near 462 and 467 MHz. Mobile and base station-style radios are available as well, but these are normally commercial UHF radios as often used in the public service and commercial land mobile bands ...

5. Motorola Solutions' Best-Selling Commercial Two-Way Radios Go ...

   www.aol.com/news/2013-07-30-motorola-solutions...

   Motorola Solutions' Best-Selling Commercial Two-Way Radios Go Digital, Further Expanding Portfolio with New Customer Offerings MOTOTRBO launches new digital-capable versions of two-way radios ...

6. List of software-defined radios - Wikipedia

   en.wikipedia.org/.../List_of_software-defined_radios

   (sensitivity drops off considerably outside this range, but can go 0–2,200 MHz (E4000 tuner with direct sampling mod) ) Matches sampling rate, but with filter roll-off 8 No 2.8 MHz (can go up to 3.2 MHz but drops samples) ? USB Yes Yes Yes Red Pitaya SDRlab122-16 [92] Pre-built 2 RX + 2TX 300 kHz - 60 MHz (500 MHz bw with undersampling)

7. Walkie-talkie - Wikipedia

   en.wikipedia.org/wiki/Walkie-talkie

   A walkie-talkie, more formally known as a handheld transceiver, HT, or handheld radio, is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald Hings , radio engineer Alfred J. Gross , Henryk Magnuski and engineering teams at Motorola .