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  2. 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. Mark and space tones are 1,200 Hz and 1,800 Hz ...

  3. SCR-536 - Wikipedia

    en.wikipedia.org/wiki/SCR-536

    The SCR-536 weighed 5 pounds (2.3 kg) with batteries and 3.85 lb (1.75 kg) without batteries. The unit operated in AM voice mode between 3.5 and 6.0 MHz frequency range on any one of 50 channels. Plug in crystals and coils were used to control the frequency of the receiver and transmitter. The antenna was a 40 inch telescoping rod that slid ...

  4. SCR-300 - Wikipedia

    en.wikipedia.org/wiki/SCR-300

    The SCR-300 operated in the 40.0 to 48.0 MHz frequency range, and was channelized. Along with other mobile FM tank and artillery radios such as the SCR-508 (20.0 to 27.9 MHz) and the SCR-608 (27.0 to 38.9 MHz), the SCR-300 marked the beginning of the transition of combat-net radio from low-HF AM/CW to low-VHF FM. [2]

  5. Walkie-talkie - Wikipedia

    en.wikipedia.org/wiki/Walkie-talkie

    A walkie-talkie, more formally known as a handheld transceiver ( HT ), 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. First used for infantry, similar designs were ...

  6. CrunchGear Boooring Edition: MOTOTRBO 2-Way Radios

    techcrunch.com/2007/03/29/crunchgear-boooring...

    Today we have some, ah, stunning 2-way radios / walkie talkies from Motorola that are dubbed MOTOTRBO. These industrial-grade radios sport both an analog and digital band and have the ability the ...

  7. Motorola: a brief history - Engadget

    www.engadget.com/2012-05-30-motorola-a-brief...

    Motorola even flirted with an early version of the car phone in 1946, developing the Car Radiotelephone for Illinois Bell. Newly rechristened, the company found more success with 1947's Golden ...

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