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H.F. Amateur Radio

(1.8 Mhz - 30 Mhz)

 

Nobody knows when Amateur Radio operators were first called "hams," but we do know that Amateur Radio is as old as the history of radio itself. Not long after Guglielmo Marconi, an Italian experimenter, transmitted the Morse Code letter "s" from Newfoundland to England in 1901, amateur experimenters throughout the world were trying out the capabilities of the first "spark gap" transmitters. In 1912 Congress passed the first laws regulating radio transmissions in the U.S. By 1914, Amateur experimenters were communicating nation-wide, and setting up a system to relay messages from coast to coast (whence the name American Radio Relay League). In 1927, the FCC was created by Congress and specific frequencies were assigned for various uses, including ham bands.

Although the main purpose of Amateur Radio is fun, it is called the "Amateur Radio Service" because it also has a serious face. The FCC created this "Service" to fill the need for a pool of experts who could provide backup emergency communications. In addition, the FCC acknowledged the ability of the hobby to advance the communication and technical skills of radio, and to enhance international goodwill. This philosophy has paid off. Countless lives have been saved where skilled hobbyists act as emergency communicators to render aid, whether it's an earthquake in Italy, a flood in India or a hurricane in the U.S.


Look at the dial on any AM radio and you'll see frequencies marked from 535 to 1605 kilohertz. Imagine that band extended out many thousands of kilohertz, and you'll have some idea of how much additional radio spectrum is available for amateur, government and commercial radio bands. It is here you'll find aircraft, ship, fire and police communication, as well as the so-called "Short Wave" stations, which are worldwide commercial and government broadcast stations from the US and overseas. Amateurs are allocated nine basic "bands" (i.e. groups of frequencies) in the high frequency range (HF) between 1.8 and 30 megahertz, and another seven bands in the VHF and UHF ranges. Even though many Amateur Radio conversations may be heard around the world, given the right frequency and propagation conditions, Amateur Radio is basically two-way communication.