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{{Status|Canon}}
{{Era|H1|H2|H3|HW|}}
[[File:Installation04Vertical.jpg|250px|thumb|A beacon tower on [[Installation 04]].]]
{{Ratings}}
{{Quote|Those beacons are part of a ring-wide communications network. They can adapt to any frequency, any purpose.|[[The Weapon]] to [[John-117]].{{Ref/Quest|Id=sequence|HINF|Reformation|The Sequence}}}}
[[Image:Scrn_009.jpg|250px|thumb|right|A Beam Emitter tower on [[Installation 04|Alpha Halo]].]]
The '''beacon tower''' (sometimes shortened as '''beacon'''),{{Ref/Reuse|sequence}} also known as an '''energy beacon''',{{Ref/Novel|Id=rp34|RP|Chapter=34}} is a [[Forerunner]] structure found on [[shield world]]s,{{Ref/SpOps|Id=mountain|Catherine|Spartan Mountain}} [[Halo Array|Halo rings]],{{Ref/Book|Id=Enc22P353|Enc22|Page=353}} and [[Installation 00]].{{Ref/Book|Id=h4evg|H4EVG|Page=215}}
A '''Beam Emitter''' is a [[Forerunner]] device or a structure that, as the name implies, emits beams of energy. There are several types of beam emitters on Forerunner installations.  


==Overview==
==Beam Emitter Towers==
===Architecture===
[[Image:Val ext3.jpg|thumb|right|250px|A beam emitter on [[Valhalla]].]]
Beacon towers are large delta-shaped structures typically with a cleave down the approximate center where a beam is emitted upwards to the sky and into space.{{Ref/Novel|TF|Chapter=3}}{{Ref/Level|Id=halo|CE|Halo (Halo: Combat Evolved level)|Halo}} This emits a loud sound that can be heard by those in the surrounding area.{{Ref/Map|Id=Valhalla|H3|Valhalla}}{{Ref/Map|Id=fragmentation|HINF|Fragmentation}} The towers typically feature an open-air elevated platform.{{Ref/Reuse|halo}} The beacons display a variety of minor differences in layout, likely reflecting the multiple purposes they serve: while some hold a small room in its center,{{Ref/Reuse|Valhalla}}{{Ref/Reuse|fragmentation}} others host underground chambers that display a continuous data stream,{{Ref/Reuse|sequence}} which contain data such as logs from the installation's monitor.{{Ref/Game|Id=Log01|HI|Audio log (Halo Infinite)#Archaeological Findings 2|Banished Audio log|Detail=Archeological Findings #01 - Reintroduction}} Furthermore, certain underground chambers have a cathedral-type ceiling cut through with supports and spokes that rose in the center.{{Ref/Novel|Id=rp35|RP|35}} The interior may feature an interface—either on a wall or on a plinth in the center of the chamber—for users to access the beacon's functions or retrieve the data being held in the data stream.{{Ref/Reuse|sequence}}{{Ref/Reuse|mountain}}{{Ref/Reuse|rp35}}
Beam Emitter towers are large delta-shaped structures with a cleave down the approximate center. They fire unknown beams upwards, in the case of the [[Halo Array|Halo installations]] to the center, and in the case of the [[Installation 00|Ark]] up into space. They are likely used to transport energy for the activation process of the Halo rings or used to get rid of excess energy. It is also possible that the beams seen on [[Installation 04]] are simulated firings of [[Alpha Halo]].


Beacon towers are commonly positioned within deep canyons to protect the facility from off-world debris, and allow them to leverage the steep environment's natural harmonics to amplify their signals when firing deep into space.{{Ref/Reuse|h4evg}} During [[Battle for Zeta Halo|their occupation]] of [[Installation 07]], because of the towers' elevated position over their surrounding areas, the [[Banished]] used the towers as makeshift garrisons or lookout towers.{{Ref/Reuse|rp35}}
Around [[Installation 00]]'s [[Citadel (Structure)|Citadel]], three [[Barrier Tower]]s resembling beam emitter towers are used to project an energy barrier that surrounds the Citadel.


===Function===
===Appearances===
[[File:HINF Sequence Beam Emitter Terminal.png|thumb|300px|A beacon tower's underground chamber.]]
Beam emitter towers appear in the following levels:
The beacon towers are built to channel, convert, and refine energy streams of almost any types.{{Ref/Reuse|Enc22P353}} Each beacon tower is equipped with a supraluminal communications array;{{Ref/Novel|Id=rp32|RP|Chapter=32}} as such, at their base function, the beacon towers act as communication channels to send specific commands to other remote locations.{{Ref/Reuse|h4evg}} This is done via a pulse of energy being fired from the tower towards the sky. The pulse of energy is known to carry at least navigation data and communications protocols.{{Ref/Reuse|mountain}} On Halo rings, the beacon towers serve a multitude of purposes, including ring-wide communication and aiding in the activation process of the ring's primary firing mechanism. On [[Requiem]], beacon towers also function as part of the shield world's [[teleportation grid]], featuring [[Slipspace translocation|teleportation portals]] that can transport objects to various other parts of the installation.{{Ref/SpOps|Id=rallypoint|Didact's Hand|Rally Point}}


Entry to the beacon's interior can be restricted either with a locked door or an energy shield.{{Ref/Reuse|sequence}}{{Ref/Reuse|mountain}} Access to its function can also be locked down, though it could be overridden: during the Battle for Zeta Halo, the installation's [[monitor]] [[117649 Despondent Pyre]] generated a data key that could override the lockout [[Cortana]] had placed on a beacon tower. Furthermore, the data key contained adaptation protocols that instructed the tower to send a superluminal message,{{Ref/Reuse|rp34}} allowing [[SPARTAN-IV program|Spartan-IV]] [[Nina Kovan]] to transmit the ring's current galactic coordinates as well as pertinent data into human-occupied space during [[Battle of the beacon tower|a battle at a beacon tower]].{{Ref/Reuse|rp35}} Later during the conflict, [[John-117]] and [[the Weapon]] accessed four beacon towers and their data streams to construct the security sequence needed to enter the [[Command Spire (location)|Command Spire]].{{Ref/Reuse|sequence}}
====[[Halo: Combat Evolved]]====
*''[[Halo (Halo: Combat Evolved Level)|Halo]]''
*''[[Infinity (Level)|Infinity]]''
====[[Halo 2]]====
*''[[Relic (Level)|Relic]]''
====[[Halo 3]]====
*''[[Valhalla (Level)|Valhalla]]''
*''[[The Covenant (Level)|The Covenant]]''
====[[Halo Wars]]====
*''[[Labyrinth]]''


==Production notes==
==Continuous Beam Emitters==
*The beacon towers in ''[[Halo: Combat Evolved]]'' were designed and modelled by artist Chris Lee.{{Ref/YouTube|Id=IGN|9ndZbg8Mr-Q|IGN|Halo: Combat Evolved Devs React to Speedrun (Martin O’Donnell, Marcus Lehto)}}
[[Image:ChiefBeam-large.jpg|250px|thumb|right|In [[Installation 04 (II)|Installation 04]]'s Control Room.]]
*According to designer [[Jaime Griesemer]] and Art Director [[Marcus Lehto]], the beams emitted from the towers were intended to be high bandwidth communications "lasers" being fired from one side of the ring to the opposite side.{{Ref/Reuse|IGN}} Although this was never explicitly explained in any media released by [[Bungie]]—only being hinted at by the inclusion of an antenna on the beacon tower in [[Forge World]]—it was eventually canonized in ''[[Halo 4]]''{{'}}s ''[[Spartan Ops]]'' and ''[[Halo 4: The Essential Visual Guide]]''.{{Ref/Reuse|mountain}}{{Ref/Reuse|h4evg}}
This type of Beam Emitter is usually seen in different types of activation structures.
*Beacon towers serve as base buildings on certain multiplayer maps, including [[Infinity (Halo: Combat Evolved map)|Infinity]] in ''Halo: Combat Evolved'', [[Valhalla]] in ''Halo 3'', [[Ragnarok]] in ''Halo 4'', and [[Fragmentation]] in ''[[Halo Infinite]]''. On Fragmentation, when a team scores a point, their beacon tower fires a pulse into the sky.
*In ''Halo: Combat Evolved'' and ''Halo 3'', if the player stands at the top of a beam tower, over the chute in which the beam fires from, the beam can either kill them, sending the player over a hundred feet in the air, or completely pass through the player. When killed by the beam, it will say "''(Player) was killed by the Guardians''".
*During the ''[[Halo Wars 2 Open Beta]]'', the [[Control Tower]]s—which serve as objectives in the [[Domination]] multiplayer mode—heavily resembled the beacon towers. In the final version of ''[[Halo Wars 2]]'', they were redesigned with three prongs.
*For ''Halo Infinite'', the beacon tower's design was built by the Forerunner environment art team; it was one of the first pre-production works done to establish the game's art direction.{{Ref/Site|URL=https://sharlene.artstation.com/projects/3dNWXB|Site=ArtStation|Page=Sharlene Lin - Halo Infinite - Forerunner Environment|D=15|M=7|Y=2024|Quote=This is a forerunner tower that got built by the whole forerunner team. It was one of our first pre-pro works to get the art direction in place.}}


==Gallery==
*The [[Control Room|Control Rooms]] of the [[Halo Array|Halo installations]] also possess a type of Beam Emitter. Instead of a single bolts of energy, this type of beam emitter fires a continuous beam from the depths of the Control Room to the top of the structure, and into the center of the ring when the Installation is activated. In case the firing sequence is cancelled, like on [[Delta Halo]], the beam collects into a large bolt of energy, which is fired into the center of the ring.
{{Linkbox|gallery=yes}}
*The [[The Portal|Ark Portal]] in [[Kenya]] also has this type of Beam Emitter. It's fired when the Portal is activated.
===Development images===
*The [[The Apex|Apex site]] of the [[Shield World (Halo Wars)|Unnamed Shield World]] also possessed this type of Beam Emitter.
<gallery>
*The [[Phase Pulse Generator]]s on the [[Halo Array|Halo]] [[Installation]]s are an example of this type of Beam Emitter.
File:HR ForgeWorld Concept 1.jpg|''[[Halo: Reach]]'' concept art of [[Forge World]] and its beacon tower.
File:HR Installation04 BeamEmitter Concept.jpg|''Halo: Reach'' concept art of the beacon tower on Installation 04.
File:H4 ForerunnerBeamHole Concept.jpg|''[[Halo 4]]'' concept art of a Forerunner "beam hole".
File:H4_RequiemBeamTower_Concept.jpg|Concept art for a beam emitter in ''Halo 4''.
File:HI AnnounceTrailer Concept 2.jpg|A beacon tower firing in a piece of concept art for the ''[[Halo Infinite]]'' [[Halo Infinite announcement trailer|announcement trailer]].
File:HINF RiverStructureConcept.jpg|Concept art of a beacon tower connected to a bridge for ''Halo Infinite''.
File:HINF Concept BeaconTowerGlassing.jpg|Concept art of a beacon tower amid a glassed landscape for ''Halo Infinite''.
File:HINF DesertChopperConcept.jpg|''Halo Infinite'' concept art of a beacon tower in a desert.
File:HINF Concept BeamEmitter1.jpg|Concept art of beacon towers for ''Halo Infinite''.
File:HINF Concept BeamEmitter2.jpg|More concept art of the beacon tower in ''Halo Infinite''.
File:HINF Concept BeamEmitter.jpg|Concept art of a beacon tower on Installation 07 for ''Halo Infinite''.
File:HINF BeamEmitterConcept2.jpg|More concept art of a beacon tower on Installation 07 for ''Halo Infinite''.
File:PF ClassicEnvironment Screenshot.png|A beacon tower rendered in [[Unreal Engine|Unreal Engine 5]] for [[Project Foundry]].
File:PF ColdlandsEnvironment Screenshot.png|A beacon tower in a winter biome, created for Project Foundry.
File:PF BlightlandsEnvironment Screenshot.png|A beacon tower in the [[Blightlands]], created for Project Foundry.


</gallery>
==Trivia==
*If you manage to stand at the top of the chute in which the beam shoots from, the beam can either kill you, sending you over a hundred feet in the air, or completely pass through you. When you are killed by the beam, it will say ''NameHere was Killed by the Guardians''


===Screenshots===
==Gallery==
<gallery>
<gallery>
File:HCE - Halo.jpg|A beacon tower on [[Installation 04]] in ''Halo: Combat Evolved''.
Image:Ark_Beam.jpg|A [[Barrier Tower]] on [[Installation 00|The Ark]].
File:Val ext3.jpg|A beacon tower on [[Valhalla]] in ''Halo 3''.
Image:HW12.png|[[The Apex]] site's beam emitter.
File:HTMCC-HR ForgeWorldBeacon.png|A beacon tower on [[Forge World]] in ''[[Halo: Reach]]''.
Image:Ark2.jpg|A type of Beam emitter, as seen on the [[The Portal|Ark Portal]].
File:Insti04ff.png|A beacon tower on [[Installation 04 (map)|Installation 04]] firing in ''Halo: Reach''.
File:Pulse generator.jpg|A [[Phase Pulse Generator]], as seen on [[Installation 04]].
File:BeamEmitterAnniversary.jpg|A beacon tower on Installation 04 in ''Halo: Combat Evolved Anniversary''.
File:HCEA Terminal HaloCliff.jpg|Beacon towers on Installation 04 in ''Anniversary''{{'}}s [[Terminal (Halo: Combat Evolved Anniversary)|terminals]].
File:H4-MP-Ragnarok-Aerial.jpg|A beacon tower on [[Requiem]] in ''Halo 4''.
File:H5G - Array 1.jpg|The beacon tower on [[Apex 7]] in ''[[Halo 5: Guardians]]''.
File:HW2B Domination Point.png|The Control Tower in ''[[Halo Wars 2 Open Beta]]'' that resembles a beacon tower.
File:HINF BeamEmitter1.png|A beacon tower on [[Installation 07]] in a pre-release build of ''Halo Infinite''.
File:HINF BeamEmitterUW.png|An ultrawide shot of a beacon tower at a different time of day in ''Halo Infinite''.
File:HINF Sequence Beacon 1.png|A beacon tower on a cliff edge in ''Halo Infinite''.
File:HINF Sequence Beacon2.png|A beacon tower firing a pulse in ''Halo Infinite''.
File:HINF Sequence Beacon 3.png|A beacon tower located in a valley in ''Halo Infinite''.
File:HINF Sequence Beacon 4.png|A beacon tower at the edge of a ring fragment in ''Halo Infinite''.
File:HINF Beacon Close.png|A beacon tower, as seen from its base, in ''Halo Infinite''.
File:HINF Zeta Halo Forerunner Glyph.png|An [[Eld]]-like Forerunner glyph in a beacon tower in ''Halo Infinite''.
File:HINF Sequence Beacon.png|Data stream underneath a beacon tower in ''Halo Infinite''.
File:HINF Sequence J117 Weapon.png|John-117 and the Weapon observe a beacon tower firing a beam in ''Halo Infinite''.
</gallery>
</gallery>


==List of appearances==
{{Forerunner2}}
*''[[Halo: Combat Evolved]]'' {{1st}}
[[Category:The Forerunner]]
*''[[Halo: The Flood]]''
[[Category:Technology]]
*''[[Halo 3]]''
[[Category:Places]]
*''[[Halo: Reach]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
*''[[Halo 5: Guardians]]''
*''[[Halo Infinite]]''
*''[[Halo: The Rubicon Protocol]]''
*''[[Halo: The Television Series Season Two]]''
**''[[Halo (TV Series)|Halo]]''
 
==Sources==
{{Ref/Sources}}
 
{{Forerunner|array}}
[[Category:Forerunner technology]]

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