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Ten-codes are abbreviated phrases used by public safety officials and CB radio enthusiasts to communicate quickly and clearly. Learn about the history, meaning and usage of ten-codes, such as 10-4 (understood), 10-33 (officer needs help) and 10-7 (out of service).
Henryk Władysław Magnuski (January 30, 1909 – May 4, 1978) was a Polish telecommunications engineer who worked for Motorola in Chicago.He was a primary contributor in the development of one of the first Walkie-Talkie radios, the Motorola SCR-300, and influenced the company's success in the field of radio communication.
A walkie-talkie is a hand-held, portable, two-way radio transceiver that allows half-duplex communication. Learn about its development during World War II, its features and applications, and its classification as radio station / land mobile station.
A secret recording has revealed the plan of Trump political consultant Roger Stone to help the former president challenge the 2024 election results.. Liberal journalist Lauren Windsor provided ...
Al Gross – father of Walkie Talkies — Short article on Al Gross from a PMR446 website. Interview with Al Gross from 1999 [dead link] About.com article on walkie-talkie; Al Gross recorded interviews and extensive biography; Al Gross Obituary — Audio interview; Hamgallery.com tribute; Al Gross — Prominent Member of EMC Society
Quindar tones were audio signals used to control remote transmitters during Apollo space missions. Learn how they worked, why they were needed, and what misconceptions they caused.
SCR-536 was a hand-held radio transceiver used by the US Army Signal Corps in World War II. It was the first true hand-held unit to see widespread use and operated in AM voice mode between 3.5 and 6.0 MHz frequency range.
Days Gone Bye is the pilot episode of the TV series The Walking Dead, based on the comic book by Robert Kirkman. It follows former sheriff Rick Grimes as he wakes up from a coma in a zombie apocalypse and tries to find his family.