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Ten-codes, especially "10-4" (meaning "understood") first reached public recognition in the mid- to late-1950s through the popular television series Highway Patrol, with Broderick Crawford. [citation needed] Crawford would reach into his patrol car to use the microphone to answer a call and precede his response with "10-4".
A walkie-talkie, more formally known as a handheld transceiver (HT) or handheld radio, 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.
The AN/PRC-6 was designed and used by the US military during the Korean War, and was in use by the US Marine Corps as late as 1972.It was commonly known as the (correctly) "Handie Talkie" [3] or (incorrectly) "walkie-talkie," "banana radio," or "Prick-6."
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 ...
This is one of a set of articles on telegraphy. The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio.
In the days when CB required a license, some low-powered or toy walkie-talkies were exempt because they operated within Part 15. However, in 1976, the FCC phased in a shift of these 100 mW [ 12 ] devices to the 49 MHz band, with operation on the CB frequencies to cease in 1983. [ 13 ]
Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]
This "code" is one of many innocuous sounding secret codes that. If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow ...