radio teletype operator

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• Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …   Wikipedia

• List of amateur radio modes — The following is a list of the modes of communication used by amateur radio operators. Analog*Amplitude Modulation (AM) *Double Sideband Suppressed Carrier (DSB SC) *Independent Sideband (ISB) *Single Sideband (SSB) *Amplitude Modulation… …   Wikipedia

• Radioteletype — (RTTY) is a telecommunications system consisting of two or more teleprinters using radio as the transmission medium.The term radioteletype is used to describe:* either the entire family of systems connecting two or more teleprinters over radio,… …   Wikipedia

• Abkürzungen/Luftfahrt/L–R — Dies ist der vierte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K …   Deutsch Wikipedia

• Witness accounts of the Roswell UFO incident — Follows are excerpts of witness accounts of the Roswell UFO incident.In 1978, author Stanton T. Friedman interviewed Jesse Marcel, who voiced his suspicion that debris he recovered on a ranch near Roswell in 1947 was not of this world. Over the… …   Wikipedia

• Emergency Broadcast System — For the record label, see Emergency Broadcast System Records. For the multimedia group, see Emergency Broadcast Network. The Emergency Broadcast System (EBS) was an emergency warning system in the United States, used from 1963 to 1997, when it… …   Wikipedia

• PSK31 — or Phase Shift Keying, 31 Baud is a digital , used primarily in the amateur radio field to conduct real time text chat between amateur radio operators. History PSK31 was developed by English amateur radio operator Peter Martinez (G3PLX) and… …   Wikipedia

• worker — I (New American Roget s College Thesaurus) n. laborer, workman; artisan, craftsman; operator, doer, performer; journeyman, yeoman; Trojan; drudge; mechanic; toiler, moiler. See exertion. II (Roget s IV) n. Syn. operator, mechanic, machinist,… …   English dictionary for students

• KW-37 — The KW 37, code named JASON, was an encryption system developed In the 1950s by the U.S. National Security Agency to protect fleet broadcasts of the U.S. Navy. Naval doctrine calls for warships at sea to maintain radio silence to the maximum… …   Wikipedia

• Iran hostage crisis — Iran United States hostage crisis A defaced Great Seal of the United States at the former U.S. embassy, Tehran, Iran, as it appeared in 2004 …   Wikipedia

• Alaska Communications System (ACS) — The Alaska Communications System (ACS), also known as the Washington Alaska Military Cable and Telegraph System (WAMCATS), was a system of cables and telegraph lines authorized by the U.S. Congress in 1900 and constructed by the U.S. Army Signal… …   Wikipedia