Search results
Results from the WOW.Com Content Network
The history of amateur radio, dates from the dawn of radio communications, with published instructions for building simple wireless sets appearing at the beginning of the twentieth century. [1] Throughout its history, amateur radio enthusiasts have made significant contributions to science , engineering , industry , and social services .
In 1979, assets in Radio Demerara were sold by Broadcasting Relay (Overseas) Limited to the government. [1] GBS rebranded in 1980, by then with Channel 1, on the frequencies of former Radio Demerara at 760 kHz and Channel 2, formerly GBS at 560 kHz. Channel One became Radio Roraima and Channel 2 was renamed Voice of Guyana.
Amateur radio operators use their amateur radio station to make contacts with individual hams as well as participate in round-table discussion groups or "rag chew sessions" on the air. Some join in regularly scheduled on-air meetings with other amateur radio operators, called "nets" (as in "networks"), which are moderated by a station referred ...
The International Amateur Radio Union (IARU) is an international confederation of national organisations that allows a forum for common matters of concern to amateur radio operators worldwide, and collectively represents matters to the International Telecommunication Union (ITU). The International Amateur Radio Union was founded in 1925 and, as ...
About three million amateur radio operators are currently active worldwide. [1] Amateur radio operators are also known as radio amateurs or hams. The term "ham" as a nickname for amateur radio operators originated in a pejorative usage (like "ham actor") by operators in commercial and professional radio communities, and dates to wired telegraphy.
Solar-powered Amateur Radio Station in tents. Note the portable VHF/UHF satellite and HF antennas in the background Rugged HF transceiver for voice communications. In times of crisis and natural disasters, amateur radio is often used as a means of emergency communication when wireline, cell phones and other conventional means of communications fail.
Until January 2006, [11] Canadian amateur radio operators were allowed to operate within the entire 220–225 MHz band. Canadian operations within 120 km of the United States border were required to observe a number of restrictions on antenna height and power levels to coordinate use with non-amateur services in the United States. [12]
Ham radio is a popular term for amateur radio, derived from "ham" as an informal name for an amateur radio operator.The use first appeared in the United States during the opening decade of the 20th century—for example, in 1909, Robert A. Morton reported overhearing an amateur radio transmission which included the comment: "Say, do you know the fellow who is putting up a new station out your way?