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2. Our Favorite Walkie Talkies From the Trails to the Worksite - AOL

   www.aol.com/lifestyle/favorite-walkie-talkies...

   In our guide to the best walkie talkies, we cover what you can expect for channels, range, durability, and privacy, followed by our picks based on use and research. Our Favorite Walkie Talkies ...

3. Walkie-talkie - Wikipedia

   en.wikipedia.org/wiki/Walkie-talkie

   Walkie-talkie. Recreational, toy and amateur radio walkie-talkies. Assorted two-way FRS and GMRS walkie talkies with hand mic. 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 ...

4. 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 ...

5. Two-way radio - Wikipedia

   en.wikipedia.org/wiki/Two-way_radio

   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, which only receives transmissions. Two-way radios usually use a half-duplex communication channel ...

6. PMR446 - Wikipedia

   en.wikipedia.org/wiki/PMR446

   PMR446 (Private Mobile Radio, 446 MHz) is a licence-exempt service in the UHF radio frequency band and is available for business and personal use in most countries throughout the European Union. [1] PMR446 is typically used for small-site, same-building and line of sight outdoor activities. Equipment used ranges from consumer-grade to ...

7. Communicator (Star Trek) - Wikipedia

   en.wikipedia.org/wiki/Communicator_(Star_Trek)

   The communicator is a fictional device used for voice communication in the fictional universe of Star Trek. As seen in at least two instances, the Original Series episodes "Tomorrow Is Yesterday" and " Day of the Dove ," it can also serve as an emergency signaling device/beacon, similar to a transponder. The communicator allows direct contact ...