building your own radio

Nov 2, 2021 ... The invention of the two-way radio changed communications dramatically. When people could communicate back and forth in real time using one ... Introduced in January 1946, the 2-Way Wrist Radio was an invention of industrialist Diet Smith's son Brilliant. Like ... when he was abducted and held hostage by ... May 18, 2023 ... The Early Years. The term “FM” is an abbreviation for “frequency modulation,” which describes a specific method of encoding audio signals onto ... Jan 4, 2024 ... Many reliable sources suggest that inventor and radio-pioneer Reginald Fessenden played a violin solo of the popular Christmas Carol 'O Holy Night' as the ... Nov 7, 2008 ... On June 21, 1909, more than 10 years prior to the launching of America's first commercially licensed radio station, a young inventor named ... The police officer will receive this either on a PC based police radio or a mobile data computer located in their car. ... The next year the Federal ... In the mid-1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance ... Dec 18, 2022 ... An investor asked the young man when they were going to see some dollars from this invention and it was at this point that the young scientists ... Aug 12, 2021 ... In late November of 1925, in a new show called “Barn Dance” on Nashville's WSM radio station, announcer George D. "Judge" Hay introduced the ... ... created by Theremin decades before. RFID was, however, officially invented in 1983 by Charles Walton when he filed the first patent with the word 'RFID'.