Transmitter in accordance with the variations in the modulating audio signal.ĪM: Abbreviation for amplitude modulation.Īmplification: The process of increasing the strength of a radio signal.ĪMTOR: Acronym for "amateur teleprinting over radio," a mode that usesįSK to send messages containing error detection capabilities and the ability request Preamplifier designed for use indoors or in limited space areas.Īctive filter: A circuit that eliminates unwanted audio frequencies from theĪddress: The information in a packet specifying the intended receiving station.Īeronautical station: A radio station aboard an airplane or a groundĪGC: Abbreviation for automatic gain control.Īmplitude modulation: A modulation technique that varies the power output of a That phrase is also defined on this page.Ī radio signal due to refraction in the ionosphere.Īctive antenna: A physically short or small antenna with a high gain If a definition contains an italicized phrase, Return to the top of this page by clicking TopĪt the end of each section of definitions. The "digits" selection are terms that are numbers. The term you wish to have defined, and you will go to the start of the terms beginning Ham radio, shortwave radio, and scanner monitoring. The nomenclature of the radio hobby can be bewildering! The following isĪ list of some of the more widely used (and confused!) terms and abbreviations found in
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