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  2. Emergency locator beacon - Wikipedia

    en.wikipedia.org/wiki/Emergency_locator_beacon

    An emergency locator beacon is a radio beacon, a portable battery powered radio transmitter, used to locate airplanes, vessels, and persons in distress and in need of immediate rescue. Various types of emergency locator beacons are carried by aircraft, ships, vehicles, hikers and cross-country skiers.

  3. SCR-300 - Wikipedia

    en.wikipedia.org/wiki/SCR-300

    Signal Corps Radio set SCR-300-A. The SCR-300 was an 18-tube battery operated VHF battlefield radio half-duplex transceiver.It used an FM transmitter section and a double superheterodyne receiver.

  4. SCR-536 - Wikipedia

    en.wikipedia.org/wiki/SCR-536

    There was no external power switch on the SCR-536. The operator pulled out or pushed in the antenna on the top which operated an internal switch to turn the radio on or off. The power was supplied by a BA-37 1.5 volt dry battery for the filament supply and a 103.5 V BA-38 battery for plate supply. [4] Battery life was about one day of normal use.

  5. Transistor radio - Wikipedia

    en.wikipedia.org/wiki/Transistor_radio

    The typical portable tube radio of the fifties was about the size and weight of a lunchbox and contained several heavy, non-rechargeable batteries—one or more so-called "A" batteries to heat the tube filaments and a large 45- to 90-volt "B" battery to power the signal circuits. By comparison, the transistor radio could fit in a pocket and ...

  6. Emergency position-indicating radiobeacon - Wikipedia

    en.wikipedia.org/wiki/Emergency_position...

    An emergency position-indicating radiobeacon (EPIRB) is a type of emergency locator beacon for commercial and recreational boats, a portable, battery-powered radio transmitter used in emergencies to locate boaters in distress and in need of immediate rescue. In the event of an emergency, such as a ship sinking or medical emergency onboard, the ...

  7. AN/PRC-163 - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-163

    The PRC-163 is one of the Handheld, Manpack & Small Form Fit (HMS) components [3] of the Integrated Tactical Network family of radios, [1] the U.S. Army's modernization strategy for tactical radios. It is a member of L3Harris' Falcon IV family of tactical radios, and the successor to the Falcon III-family AN/PRC-152 Multiband Handheld Radio.

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