a chronological overview of the major milestones and innovations in the history of mobile phone technology

Mar 29, 2025 ... Where was radio invented? The first practical wireless radio ... Radio's early years. Reginald FessendenReginald ... The first laboratory demonstration took place on 23 December 1947. Bell publicly announced the new invention on 30 June 1948. At first the US military bought ... Oct 30, 2020 ... In 1920, employees of inventor and industrialist George Westinghouse hit upon an idea to boost radio sales by providing programming that ... Armstrong was a pioneer of radio engineering, credited as the inventor of FM radio. ... Introduced in Japan in 1979 and in the US the following year, the ... May 12, 2022 ... ... invention." The wireless became the only way for survivors on board the RMS Carpathia to contact their families. Since messages were charged ... Jun 15, 2020 ... On this day in 1920, the first wireless radio broadcast in the UK took place, conducted by Guglielmo Marconi. Chelmsford wanderings. It was invented in 1947, and even several years later, it was considered by ... radio equipment. Yet the transistor is fundamental for all modern ... Jan 21, 2022 ... The Long Blue Line: Coast Guard pioneers the marine radio over 100 years ago! ... created a new challenge for communications. Early ... 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 ... Apr 20, 2023 ... It was when the tuning head was able to be packaged separately from the amplifier when radio became practical for automotive use. Craig ...