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Memory Alpha
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In [[2370]] Pressman, now an [[admiral]] at Starfleet Intelligence, boarded the {{USS|Enterprise|NCC-1701-D|-D}} and mounted a mission to retrieve the phasing cloak. It had been determined that the [[Romulan]]s had learned about the cloaking device and were attempting to retrieve it themselves, and Pressman was determined not to let it fall into their hands. The ''Pegasus'' was eventually located and the device retrieved, but not before [[IRW Terix|a Romulan Warbird]] sealed the ''Enterprise'' inside the asteroid. Deciding not to continue to aid Pressman in the illegal activity, Riker, by this point the ''Enterprise''{{'}}s [[first officer]], revealed the existence of the cloaking device to Captain [[Jean-Luc Picard|Picard]], and suggested using it to phase the ''Enterprise'' and pass through the surface of the asteroid. The plan worked, and Picard ordered the ''Enterprise'' to decloak in front of the [[Warbird]], thereby revealing the existence of the phasing cloak to the Romulans. Both Admiral Pressman and [[Commander]] Riker were subsequently taken into custody for their respective roles in the illegal experiment. ({{ENT|These Are the Voyages...}}; {{TNG|The Pegasus}})
 
In [[2370]] Pressman, now an [[admiral]] at Starfleet Intelligence, boarded the {{USS|Enterprise|NCC-1701-D|-D}} and mounted a mission to retrieve the phasing cloak. It had been determined that the [[Romulan]]s had learned about the cloaking device and were attempting to retrieve it themselves, and Pressman was determined not to let it fall into their hands. The ''Pegasus'' was eventually located and the device retrieved, but not before [[IRW Terix|a Romulan Warbird]] sealed the ''Enterprise'' inside the asteroid. Deciding not to continue to aid Pressman in the illegal activity, Riker, by this point the ''Enterprise''{{'}}s [[first officer]], revealed the existence of the cloaking device to Captain [[Jean-Luc Picard|Picard]], and suggested using it to phase the ''Enterprise'' and pass through the surface of the asteroid. The plan worked, and Picard ordered the ''Enterprise'' to decloak in front of the [[Warbird]], thereby revealing the existence of the phasing cloak to the Romulans. Both Admiral Pressman and [[Commander]] Riker were subsequently taken into custody for their respective roles in the illegal experiment. ({{ENT|These Are the Voyages...}}; {{TNG|The Pegasus}})
   
==Other species interphase cloaking technology==
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==Other interphase cloaking technology==
 
[[File:Interphase generator.jpg|thumb|A [[Romulan]] [[interphase generator]]]]
 
[[File:Interphase generator.jpg|thumb|A [[Romulan]] [[interphase generator]]]]
* In [[2368]], the [[Romulan]]s were experimenting with an [[interphase generator]], a device combining a [[molecular phase inverter]] and a cloaking device to create an interphase cloak. [[Chroniton]] radiation produced by the device would phase the cloaked item and a high-intensity [[anyon]] emission could be used for de-phasing. The experiment failed due to a [[forced chamber explosion]] in the test ships [[warp core]] [[resonator coil]]. Radiation was however successfully used to cloak individual crewmen. The [[Klingon Empire|Klingons]] had also experimented with a similar interphase generator cloaking technology in the early [[2360s]], but abandoned their research because of several accidents. ({{TNG|The Next Phase}}).
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* In [[2368]], the [[Romulan]]s were experimenting with an [[interphase generator]], a device combining a [[molecular phase inverter]] and a cloaking device to create an interphase cloak. Cloaked items would however leave behind [[chroniton]] fields when they interacted with normal matter, high-intensity [[anyon]] emissions eliminated the chronitons and de-phasing and de-cloaking the interphase effect. The experiment failed due to a [[forced chamber explosion]] in the test ships [[warp core]] [[resonator coil]]. Radiation was however successfully used to cloak individual crewmen. The [[Klingon Empire|Klingons]] had also experimented with a similar interphase generator cloaking technology in the early [[2360s]], but abandoned their research because of several accidents. ({{TNG|The Next Phase}}).
   
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* In 2368, on [[Devidia II]], crew of the USS ''Enterprise''-D devised a method of phase-shifting crewmen to a [[phase variance]] of 0.004. [[Data]] was enveloped in a contained [[subspace force field]] created by subspace generator. By adjusting the [[synchronic distortion]] of the field with the [[phase discriminator]] in his [[positronic brain]] he phase-shifted himself. The procedure was repeated for other members of the crew using a [[tricorder]] modified to interface with the subspace generator, containing a custom built phase discrimination. It was theorized in both instances that the phase displacement was not precise enough to synchronize the ''Enterprise'' crew to the Devidians perceptual range, even though the ''Enterprise'' personnel could see them when phased. ({{TNG|Time's Arrow}})
* In [[2373]], the [[Voth]] used a form of [[interphase]] as a cloaking technology on themselves and their ships. This allowed [[Forra Gegen]] and [[Veer]] to covertly observe the {{USS|Voyager}} and her crew. The technology was more advanced than anything [[Tuvok]] had seen before. When cloaked, the Voth only appeared as localized spatial fluctuations with a modulating [[phase variance]] that could be detected with [[sensor]]s. When the two Voth were isolated from their subspace frequency by analyzing the scans of the spatial phase variance, it was possible to disrupt their cloaking devices with a [[phaser]] set for a dispersion frequency of 1.85 [[gigahertz]]. ({{VOY|Distant Origin}})
 
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* In [[2373]], the [[Voth]] used a form of [[interphase]] as a cloaking technology on themselves and their ships. This allowed [[Forra Gegen]] and [[Veer]] to covertly observe the {{USS|Voyager}} and her crew. The technology was more advanced than anything [[Tuvok]] had seen before. When cloaked, the Voth only appeared as localized spatial fluctuations with a modulating phase variance that could be detected with [[sensor]]s. When the two Voth were isolated from their subspace frequency by analyzing the scans of the spatial phase variance, it was possible to disrupt their cloaking devices with a [[phaser]] set for a dispersion frequency of 1.85 [[gigahertz]]. ({{VOY|Distant Origin}})
   
 
* To covertly conduct their invasive experiments on other [[humanoid]]s, the [[Srivani]] also used this type of stealth technology for themselves, as well as their equipment and [[Srivani vessel|ships]]. In [[2374]], when invading the USS ''Voyager'', the technology hid the Srivani to a phase variance of 0.15. Adjusting the [[Borg]] [[sensory node]] of [[Seven of Nine]] for this variance allowed her to see them. Seven also modified her [[hand phaser]] to a modulation that would penetrate the cloak. ({{VOY|Scientific Method}})
 
* To covertly conduct their invasive experiments on other [[humanoid]]s, the [[Srivani]] also used this type of stealth technology for themselves, as well as their equipment and [[Srivani vessel|ships]]. In [[2374]], when invading the USS ''Voyager'', the technology hid the Srivani to a phase variance of 0.15. Adjusting the [[Borg]] [[sensory node]] of [[Seven of Nine]] for this variance allowed her to see them. Seven also modified her [[hand phaser]] to a modulation that would penetrate the cloak. ({{VOY|Scientific Method}})
   
{{bginfo|The Srivani technology was not specifically called interphase or cloaking in "Scientific Method", but was clearly intended to be a technology of this type.|In the non-[[canon]] game ''[[Star Trek: Armada]]'', the Romulan ''Shadow''-class ship can be upgraded to use a phase cloak.}}
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{{bginfo|The Starfleet technology in "Time's Arrow" was not used for it's stealth effect, but to interact with the phased Devidians who were naturally cloaked but could also de-phase. It was not specifically called interphase or cloaking in the episode. The Srivani technology in "Scientific Method" was also not specifically called interphase or cloaking, but based on the terminology and use in both cases these are presumably technologies of this type.|In the video game ''[[Star Trek: Armada]]'', the Romulan ''Shadow''-class ({{mbeta|Shadow class}}) ship can be upgraded to use a phase cloak.}}
   
 
== See also ==
 
== See also ==

Revision as of 22:48, 21 August 2011

Federation cloaking device

The Federation interphase cloak

The interphase cloaking device, or phasing cloak, was an experimental technology developed by a secret group in Starfleet Security in the 2350s. An expansion on the more traditional cloaking device, it was designed to change the structure of matter in order to allow any vessel utilizing it to pass through normal matter. A direct violation of the Treaty of Algeron, which banned cloaking technology aboard Federation starships, the phasing cloak was first tested aboard the USS Pegasus in 2358, under the command of Captain Erik Pressman.

In response to the illegal use of this device, the crew of the Pegasus mutinied against Pressman, forcing Pressman and a small group of officers who sided with him, including a young Ensign Will Riker, to flee the ship. Afterwards, the Pegasus drifted into an asteroid field in the Devolin system while still in a phased state. The cloak blew out the plasma relays aboard the ship, and when it passed through a particularly large asteroid, the cloak failed, causing the Pegasus to partially materialize inside solid rock. The crew dead, the Pegasus remained entombed in the asteroid for the next twelve years. A Judge Advocate General's investigation into the mutiny was initiated, but, in order to conceal the illegal test, Starfleet Intelligence classified the file.

Enterprise interphase decloaking

The USS Enterprise-D deactivating its interphase generator in front of a Romulan Warbird

In 2370 Pressman, now an admiral at Starfleet Intelligence, boarded the USS Enterprise-D and mounted a mission to retrieve the phasing cloak. It had been determined that the Romulans had learned about the cloaking device and were attempting to retrieve it themselves, and Pressman was determined not to let it fall into their hands. The Pegasus was eventually located and the device retrieved, but not before a Romulan Warbird sealed the Enterprise inside the asteroid. Deciding not to continue to aid Pressman in the illegal activity, Riker, by this point the Enterprise's first officer, revealed the existence of the cloaking device to Captain Picard, and suggested using it to phase the Enterprise and pass through the surface of the asteroid. The plan worked, and Picard ordered the Enterprise to decloak in front of the Warbird, thereby revealing the existence of the phasing cloak to the Romulans. Both Admiral Pressman and Commander Riker were subsequently taken into custody for their respective roles in the illegal experiment. (ENT: "These Are the Voyages..."; TNG: "The Pegasus")

Other interphase cloaking technology

Interphase generator

A Romulan interphase generator

  • In 2368, the Romulans were experimenting with an interphase generator, a device combining a molecular phase inverter and a cloaking device to create an interphase cloak. Cloaked items would however leave behind chroniton fields when they interacted with normal matter, high-intensity anyon emissions eliminated the chronitons and de-phasing and de-cloaking the interphase effect. The experiment failed due to a forced chamber explosion in the test ships warp core resonator coil. Radiation was however successfully used to cloak individual crewmen. The Klingons had also experimented with a similar interphase generator cloaking technology in the early 2360s, but abandoned their research because of several accidents. (TNG: "The Next Phase").
  • In 2368, on Devidia II, crew of the USS Enterprise-D devised a method of phase-shifting crewmen to a phase variance of 0.004. Data was enveloped in a contained subspace force field created by subspace generator. By adjusting the synchronic distortion of the field with the phase discriminator in his positronic brain he phase-shifted himself. The procedure was repeated for other members of the crew using a tricorder modified to interface with the subspace generator, containing a custom built phase discrimination. It was theorized in both instances that the phase displacement was not precise enough to synchronize the Enterprise crew to the Devidians perceptual range, even though the Enterprise personnel could see them when phased. (TNG: "Time's Arrow")
  • In 2373, the Voth used a form of interphase as a cloaking technology on themselves and their ships. This allowed Forra Gegen and Veer to covertly observe the USS Voyager and her crew. The technology was more advanced than anything Tuvok had seen before. When cloaked, the Voth only appeared as localized spatial fluctuations with a modulating phase variance that could be detected with sensors. When the two Voth were isolated from their subspace frequency by analyzing the scans of the spatial phase variance, it was possible to disrupt their cloaking devices with a phaser set for a dispersion frequency of 1.85 gigahertz. (VOY: "Distant Origin")
  • To covertly conduct their invasive experiments on other humanoids, the Srivani also used this type of stealth technology for themselves, as well as their equipment and ships. In 2374, when invading the USS Voyager, the technology hid the Srivani to a phase variance of 0.15. Adjusting the Borg sensory node of Seven of Nine for this variance allowed her to see them. Seven also modified her hand phaser to a modulation that would penetrate the cloak. (VOY: "Scientific Method")
The Starfleet technology in "Time's Arrow" was not used for it's stealth effect, but to interact with the phased Devidians who were naturally cloaked but could also de-phase. It was not specifically called interphase or cloaking in the episode. The Srivani technology in "Scientific Method" was also not specifically called interphase or cloaking, but based on the terminology and use in both cases these are presumably technologies of this type.
In the video game Star Trek: Armada, the Romulan Shadow-class (Shadow class at Memory Beta, the wiki for licensed Star Trek works) ship can be upgraded to use a phase cloak.

See also