websites about radio history

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 ... 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 ... It's easy to find the stories about how Guglielmo Marconi invented radio and ... 1991 saw one of the biggest changes in amateur radio when the FCC ... In 1896, Guglielmo Marconi invented the first rendition of the radio. After ... when radio channels were in short supply for police officers. Radios ... Work began in earnest in the spring of 1954, and this first Regency transistor radio was in stores for the Christmas season later that year. The Regency ... We invented and patented wireless local area network (WLAN) in the 1990s – a ... Reverberation occurs where radio waves bounce around the surrounding environment ... Radio went on to become an essential tool for the army and a means of receiving information and entertainment for households. In 1895, the Lumière brothers ... An archetypical case is the invention of radio. To American—and Italian ... year he participated in the invention of a secure transmission system. Experiments by Heinrich Rudolf Hertz between 1880 and 1890 proved the existence of electromagnetic waves. His successful work took place after earlier ... ... years old. Although not that commonly used in the modern times, the term has ... The invention, growth and expansion of radio technology caused a ...