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  2. Ann Moore (inventor) - Wikipedia

    en.wikipedia.org/wiki/Ann_Moore_(inventor)

    However, the company marketed the Snugli in a different direction, cheapening it for mass manufacturing. They took out key aspects of the original design, something that Moore did not expect. [3] After 12 years of being asked where to find an original Snugli, Moore decided to create a new version called the Weego.

  3. SCR-536 - Wikipedia

    en.wikipedia.org/wiki/SCR-536

    The range of the unit varied with terrain; from a few hundred feet (about a hundred metres), to approximately one mile (1.5 km) over land, and 3 miles (5 km) over water. [5] Under the Army Nomenclature System, the BC-611 transceiver was the core component of the SCR-536 Signal Corps Radio set. The Signal Corps technical manual number was TM 11-235.

  4. 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, [1] in contrast to a broadcast receiver ...

  5. SINCGARS - Wikipedia

    en.wikipedia.org/wiki/SINCGARS

    The new SINCGARS Mode 2 comprises all the same Mode 1 FH configurations but under a new TRANSEC security umbrella. The RT-1523E is reprogrammable via the front panel data connector. RT-1523E: RT-1523F (ASIP) (AN/PRC-119F) 2006: 273,037: The RT-1523F pictured with SideHat provides a SINCGARS ASIP 2-channel radio, based upon the design of the RT ...

  6. 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 ...

  7. Land mobile radio system - Wikipedia

    en.wikipedia.org/wiki/Land_mobile_radio_system

    A land mobile radio system (LMRS) is a person-to-person voice communication system consisting of two-way radio transceivers (an audio transmitter and receiver in one unit) which can be stationary (base station units), mobile (installed in vehicles), or portable (handheld transceivers e.g. "walkie-talkies").

  8. AN/PRC-77 Portable Transceiver - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-77_Portable_Transceiver

    [4] There were no changes to the external controls or looks, so the two radios looked and the operating controls were the same. The equipment tag glued to the edge of the front panel was the main (external) way to tell the difference. The original batteries had a 3 V tap (series diode-reduced to 2.4 V) for the PRC-25's tube filament.

  9. Selective calling - Wikipedia

    en.wikipedia.org/wiki/Selective_calling

    In a conventional, analog two-way radio system, a standard radio has noise squelch or carrier squelch, which allows a radio to receive all transmissions. Selective calling is used to address a subset of all two-way radios on a single radio frequency channel. Where more than one user is on the same channel (co-channel users), selective calling ...