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2. Family Radio Service - Wikipedia

   en.wikipedia.org/wiki/Family_Radio_Service

   Motorola T5320 FRS handheld radio. 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 ...

3. List of Motorola products - Wikipedia

   en.wikipedia.org/wiki/List_of_Motorola_products

   MTC 3600 SmartNET/SmartZone 4.1 Controller (Prime & Remote) PSC 9600 Astro25 6.x Site Controller (Remote Sites) MTC 9600 ASTRO25 Site Controller (Prime Sites) GCP 8000 ASTRO25 Site Controller (Prime & Remote Sites) MZC 3000 SmartZone 4.1 Zone Controller (4.1 Master Sites)

4. MOTO Talk - Wikipedia

   en.wikipedia.org/wiki/MOTO_Talk

   MOTO Talk. MOTO Talk is a feature on some Motorola iDEN cellular phone handsets which allows users to make short-range ' push-to-talk ' calls to other such handsets without being on the iDEN network. This feature goes by different names on iDEN service providers.

5. Digital mobile radio - Wikipedia

   en.wikipedia.org/wiki/Digital_mobile_radio

   Digital mobile radio. Digital mobile radio (DMR) is a digital radio standard for voice and data transmission in non-public radio networks. It was created by the European Telecommunications Standards Institute (ETSI), [1] and is designed to be low-cost and easy to use. DMR, along with P25 phase II and NXDN are the main competitor technologies in ...

6. Walkie-talkie - Wikipedia

   en.wikipedia.org/wiki/Walkie-talkie

   The first handheld walkie-talkie was the AM SCR-536 transceiver from 1941, also made by Motorola, named the Handie-Talkie (HT). [9] The terms are often confused today, but the original walkie-talkie referred to the back mounted model, while the handie-talkie was the device which could be held entirely in the hand.

7. SCR-536 - Wikipedia

   en.wikipedia.org/wiki/SCR-536

   The SCR-536 is often considered the first of modern hand-held, self-contained, "handie talkie" transceivers (two-way radios). It was developed in 1940 by a team led by Don Mitchell, chief engineer for Galvin Manufacturing (now Motorola Solutions) and was the first true hand-held unit to see widespread use. [1]