sideband telephony

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• Marine and mobile radio telephony — Example: Complete GMDSS A3 installation with HF telex. The Marine Radiotelephone Service or HF ship to shore operates on shortwave radio frequencies, using single sideband modulation. The usual method is that a ship calls a shore station, and the …   Wikipedia

• ACP-131 — is the controlling publication for the listing of Q codes and Z codes. It is published by NATO Allied countries, and revised from time to time. When the meanings of the codes contained in ACP 131 are translated into various languages, the codes… …   Wikipedia

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• Otto Julius Zobel — Born October 20, 1887(1887 10 20) Ripon, Wisconsin Died January 1970 (age 82) Morristown, New Jersey …   Wikipedia

• AN/PRC-150 — The AN/PRC 150(C) Multiband Radio, also known as the Falcon II, is a manpack, tactical HF and VHF radio manufactured by Harris Corporation. [ [http://www.rfcomm.harris.com/news/view pressrelease.asp?act=lookup pr id=2149 Harris Corporation… …   Wikipedia

• Types of radio emissions — The International Telecommunication Union uses an internationally agreed system for classifying radio frequency signals. Each type of radio emission is classified according to its bandwidth, method of modulation, nature of the modulating signal,… …   Wikipedia

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• George Ashley Campbell — Infobox Scientist name = George Ashley Campbell caption = birth date = birth date|1870|11|27 birth place = Hastings, Minnesota death date = death date and age|1954|11|10|1870|11|27 death place = residence = United States nationality =American… …   Wikipedia

• Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… …   Wikipedia

• Amateur radio history — Throughout the history of amateur radio, amateur radio enthusiasts have made significant contributions to science, engineering, industry, and social services. Research by amateur radio operators has founded new industries, built economies,… …   Wikipedia

• John Renshaw Carson — (June 28, 1886 October 31, 1940), who published as J. R. Carson, was a noted transmission theorist for early communications systems. He invented single sideband modulation.Carson was born in Pittsburgh, Pennsylvania, graduated from Princeton… …   Wikipedia