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In the science fiction television Stargate universe, a DHD (for Dial-Home Device) is an Ancient machine used to control a stargate. DHDs are pedestal-shaped with a round inclined control panel on top consisting of two concentric circles of "keys" and a translucent red hemisphere in the center; the keys represent the symbols on the rim of the Stargate and the central hemisphere serves as an "enter" key to activate the Stargate once a destination has been dialled. The DHD also provides power for the Stargate and appears to have a complex programming interface with it that is not normally needed by the operator. A broadcast of the long-running and popular British science-fiction series Doctor Who. ...
Stargate collectively refers to the fictional universe started with the 1994 science fiction feature film Stargate, and afterwards continued in novel form, in two live-action television series (Stargate SG-1 and Stargate Atlantis) and in other derivative works. ...
The Ancients (or Alterans, as they originally called themselves) are a fictional race in the Stargate universe. ...
A typical stargate This article is about the device in the fictional Stargate universe. ...
 The circular keyboard of a Stargate DHD It appears that originally every Stargate had its own DHD, located directly in front of the Stargate and facing it. However, over time some DHDs have been damaged or lost. This presents a difficulty for Stargate travellers, as it is still possible to dial in to a Stargate that lacks a DHD but dialling out again is much more difficult. Several episodes have hinged upon SG teams becoming stranded on worlds without functioning DHDs, having to improvise lightning rods or other such power sources and manually dialling the Stargate's symbol ring. One of the primary functions of the MALP probe that is sent to new Stargates before any SG team is to confirm the presence of a functioning DHD. Stargate DHD This is a screenshot of a copyrighted website, video game graphic, computer program graphic, television broadcast, or film. ...
In the fictional universe of the Stargate SG-1 television series, the SG designation denotes that the team is a part of the Stargate program, while the number following the Stargate designation is to distinguish between separate Stargate teams. ...
It has been suggested that Field Remote Expeditionary Device be merged into this article or section. ...
Apparently, dialing an address leaves a small imprint on the control crystals of the DHD, so about fifty addresses can be recovered from a DHD from someone with the proper equipment; however, this gives no indication of the order in which the addresses were dialed and no guarantee can be made as to the accuracy of the recovered addresses.
Earth's DHDs
 Stargate Dialing Program dialing Abydos Earth's Stargate was missing its DHD when first discovered, requiring Stargate Command to develop its own native dialling system (or 'MacGyver our own' as Sam puts it in "Children of the Gods"). This resulted in Stargate misbehavior from time to time, since most of its detailed interfaces could not be reverse-engineered. Earth's DHD had not been destroyed, however, merely lost; the Nazis removed it from Egypt during World War II and the Soviet Union subsequently captured it at the end of the war. It passed into the possession of the Russians after the Soviet Union's fall. After the Russians recovered the American primary Stargate from the Pacific Ocean when it was lost in the crash of Thor's starship Beliskner, they set up their own Stargate exploration program using the DHD to secretly "override" the backup Stargate the SGC was using whenever Russian SG teams were scheduled to dial back to Earth. The backup Stargate's DHD was still with it when it was found in Antarctica, and was used briefly by NID operatives to conduct covert technology raids through the backup Stargate, but it has since run out of power and ceased to function. The Antarctic gate and DHD are thought to have been the oldest known, possibly among the earliest that were constructed by the Ancients. This is a screenshot of a copyrighted movie or television program. ...
Cheyenne Mountains base Cheyenne Mountains entrance tunnel Cheyenne Mountains interior For more information on this series and its accompanying fictional universe, see Stargate. ...
MacGyver was an American adventure television series about a laid-back, extremely resourceful ex-special forces secret agent named Angus Mac MacGyver, played by Richard Dean Anderson. ...
Thor is a recurring character in the Stargate SG-1 science fiction TV series. ...
The Beliskner-Class Cruiser is a fictional spacecraft in the science-fiction television show, Stargate SG-1. ...
The American Stargate program eventually suffered a mishap that their makeshift dialling interface was unable to correct, with Teal'c becoming "trapped" in their Stargate's data buffer after the wormhole connection was severed when a ship destroyed the stargate that the Earth stargate was connected to. The Americans eventually made a bargain to exchange some of the information their more-successful Stargate program had gained for the Russian DHD, which was able to retrieve Teal'c alive. The DHD was burned out in the process, however, leaving Earth with no remaining known DHDs. Tealc [ˈtiËÉ™lk] is a fictional character in the science fiction television series Stargate SG-1. ...
Pegasus galaxy DHDs In the series Stargate Atlantis, an expedition to the Pegasus galaxy discovers another Stargate network along with extensive remnants of Ancient civilization. The Ancients sometimes employed small cylindrical spaceships called 'Puddle Jumpers' for gate travel, and the ships had built-in DHDs on their control consoles with a keyboard consisting of a grid of triangular keys much smaller than the large circular arrangement on a standard DHD. There is a similar compact dialling console in the Stargate room of Atlantis, the principal Ancient city there. More conventional DHD pedestals are found on other worlds of the Pegasus galaxy, with only cosmetic differences from DHDs in the Milky Way, the primary differences being that both the keys and the central hemisphere in the Pegasus Galaxy are blue and the sound produced by dialing a Pegasus DHD is more of a buzzing than a swishing. The Wraith also travel through Stargates in small spacecraft called Wraith Darts and have some means of remote-dialling them in a manner similar to Ancient ships. ...
Puddlejumper concept image In the science fiction television show Stargate Atlantis, the Ancient Puddle Jumper is a small craft about the size of a van capable of space travel. ...
In the science fiction television series Stargate Atlantis, the Wraith are a hive-based parasitic species that drove the Ancients out of the Pegasus Galaxy around 8000 BC. Ever since they have been the dominant race of the Pegasus galaxy, and they are the primary antagonists of the series, similar...
In the fictional Stargate universe, the Wraith Dart is a small, fast one-man space vessel used by the Wraith, usually used for culling. ...
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