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Topics: DX Number Film Assigned Aps Emulsion Manufacturer International...

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DX communicationDX communication is communication over great distances using the ionosphere to refract the transmitted radio beam. The beam returns to the Earth's surface, and may then be reflected back into the ionosphere for a second bounce. Ionospheric refraction is g DXJDXJ is one of the pioneers of Bass music. He uses samples from many sources, and is influenced by Parliament/Funkadelic. External links . DX encodingDX (Digital indeX) is a standard for marking 135 and APS photographic film cartridges. Cameras can electrically determine the film speed, number of exposures and exposure tolerance. The DX Camera Auto-Sensing Code takes the form of a common ground and ten DX numberThe DX number is a number, assigned by the International Imaging Industry Association, that uniquely identifies the type and manufacturer of a film emulsion. A list of assigned DX numbers for APS and 135 film is issued annually. See also, but not to be co DXCCThe DXCC or DX Century Club, is an award (and registered trademark) granted by ARRL the American Radio Relay League, given for contacting and engaging in two way communications by means of amateur radio with other operators in at least 100 "entities". DXDX was a common telegraphic abbreviation that stood for a signal that travelled a very long distance. It is still used today in the field of radio, but is most frequently used in amateur radio circles. DX is also a system of document exchange, used widely DX-pedition DX4330 DX station