Dial Home Device

From Stargate Wiki
Jump to navigation Jump to search
Dial Home Device



Dialing the Stargate

The Dial Home Device, commonly abbreviated to DHD, is an Ancient Stargate control device.


The DHD has a large domed button in the middle, and two lines of Glyphs around it. When an address is dialed the button in the middle is pressed to activate the Stargate. (SG1: "Children of the Gods") The DHD has a power source, a converger, which all parts of its controls connect. The device has a panel on the front which allows for a reset to be done. There are a number of control crystals inside it. (SG1: "The Torment of Tantalus", "Solitudes", "Prototype") There is a master control crystal that regulates the energy distribution. (SG1: "48 Hours") If a Stargate is not connected to a DHD it can usually only dial other gates within about 300 light years. (SG1: "2001") The devices have a finite energy supply, losing charge after at least 50 million years. (SG1: "Frozen") The DHD's run programs used by the Stargate including the Automatic correlative updates. (SG1: "Avenger 2.0") The DHD's produce a very efficient form of energy. (SG1: "Heroes, Part 1") The Stargates in the Pegasus galaxy have DHD's which light up in a blue color. (SGA: "Rising") DHD's typically retain the last 50 or so addresses dialed in their memories. (SGA: "The Lost Boys", SG1: "The Quest, Part 2")


Germany found a DHD in Giza in 1906 and took it back with them. The Red Army took the DHD from Germany after World War II. (SG1: "Children of the Gods", "Watergate", "The Tomb") A DHD was with the Stargate located in Antarctica, but it lost power not long after being brought to Area 51. (SG1: "Solitudes", "Frozen") When Ernest Littlefield went through the Stargate in 1945, the DHD he found was damaged and dead. Daniel Jackson found the DHD on Abydos and moved it to in front of the Stargate to experiment with it. When SG-1 found Ernest Littlefield, Samantha Carter and Teal'c examined the DHD then used parts from a MALP and a F.R.E.D. to directly connect the DHD powers source to the Stargate, but a collapse caused the DHD to fall through the floor and into the ocean below. (SG1: "The Torment of Tantalus") When Jack O'Neill and Carter came through the Stargate in Antarctica, they had to dig the DHD out of ice but when Carter tried to dial Earth, she couldn't as they did not realize they were on Earth already. (SG1: "Solitudes")

When exploring P9Q-281, Carter, Teal'c and two others became trapped when the Stargate seized up mid dial. O'Neill, using the knowledge of the Ancients that had been uploaded into his mind, devised instructions to repair the DHD and allow the Stargate to function. (SG1: "The Fifth Race") When Teal'c became trapped in the Stargate, a DHD was connected to it and the master control crystal was removed as part of the process to get the Stargate to form an Event horizon without a wormhole and get Teal'c out. (SG1: "48 Hours") Dr. Jay Felger connected to the DHD on P5S-117 and discovered that the Avenger virus he had created had been modified to be transmitted with the correlative updates and disable every Stargate. (SG1: "Avenger 2.0") Anubis installed a Call forwarding device in the DHD on P3X-584 to prevent unauthorized people coming to the planet. (SG1: "Prototype")

Major Leonard, being affected by a Wraith Mind manipulator, placed explosives in a DHD on M1B-129 which exploded when someone tried to dial. (SGA: "Phantoms") Adria used her abilities to examine the DHDs on several planets to determine what the last address dialed was in her search for SG-1. (SG1: "The Quest, Part 2")