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    That's Miwa and Izumi. Tōma's wearing Bagworm so we can't tell.

    Ken Satori, in Arashiyama Squad 4.[1]

    Radar (レーダー, Rēdā ?) is a Standard Equipment Trigger[3] so it can be used by all A and B-rank Border combatants.

    Appearance[edit source]

    Radar is projected by Border agents as a flat, round hologram of a C-scope in which equidistant, concentric circles intersect two perpendicular lines.[4] The lines, every fifth circle and all intersections are more pronounced than the other rings.[5] Trion signatures appear as dots that leave a trail as they move.[1] If their altitude differs from Radar's user's, an underscored caption reading "high" or "low" in capital letters appears next to the signature.[6][7]

    Overview[edit source]

    It is unknown when Border created this Trigger. Since some Neighbor countries use a similar Trigger,[8][9][10] it might be part of the technology that Border acquired in the Neighborhood.[11] An enhanced version was also developed at some point which is used by Asumi Amakura[12]

    Abilities[edit source]

    Radar detects the signatures emitted by trion bodies, allowing the user to know the position and numbers of Trigger users within range.[4] Compass points are also displayed[13] as well as the elevation of other trion signatures relatively to the user's position ("high" or "low").[6][7] This information can be cross-referenced with the topographical data available to Operators for greater accuracy:[13] trion signatures detected by Radar can be superimposed on a map of the area,[14][15] as well as tagged so their owners can be told apart.[16] A Radar user can also increase its precision without an Operator's assistance,[17] zooming in on the trion signatures to get a better sense of their direction, distance and speed[4] in return for an increase in trion consumption.[17]

    Radar is able to detect agents who turn invisible with Chameleon,[18] but not the ones utilizing Bagworm[1] or other stealth Triggers designed to hide the user's trion signature.[19] Since it is not placed in either the Main or the Sub, it can be activated even when one Trigger from each column is already active.[6][17] However, an enhanced version also exists which does occupy a Trigger slot.[12] Its effects are currently unknown.

    Countries in the neighborhood[edit source]

    Aftokrator[edit source]

    Hyuse owns a device which, among others, has a function identical to Radar's, with the trion signatures appearing on a grid instead of a C-scope.[8] Despite the signatures appearing as mere dots, he was able to recognize them as belonging to Idras.[8] This could be because of their movements and/or his knowledge of Rhodokhroun.

    Rabbit ears work much like Radar,[20] further suggesting that, even though no Neighbor seemingly used it during the Second Large-Scale Invasion, Aftokrator indeed possesses this technology.

    Galopoula[edit source]

    The first model is not unlike Border's standard version that sports a grid instead of a C-scope and might be able to reproduce a layout of the user's surroundings without the Operator's topographical data.[10] It is unable to tell a human's trion signature apart from those left by Switchbox.[21][10] The signatures it detects can be projected on what the user sees.[22]

    The second model has a square display, which hovers over the user's wrist[9] or palm.[23] It is seemingly much more advanced than the other version or Border's, as not only humans in trion bodies and the various types of Trion Soldiers have each their own distinctive icon,[9][23] it is also capable of bypassing Bagworm's cloaking effect[9][24] and to display the trajectory of bullets as well as an approximation of their size, making it possible to tell Sniper and Gunner Triggers apart, in addition to arrows pointing towards the direction groups of enemies are moving.[9]

    Users[edit source]

    As a Standard Equipment Trigger, Radar is included in the Trigger sets of all A and B-rank agents, for a total of approximately 130 users.[25] Asumi Amakura is the only known user of its enhanced variant.[12] C-rank trainees are given access to Radar during training.[26][27]

    Trivia[edit source]

    • Radar was originally supposed to be unable to reveal elevation,[13] although it was consistently shown to be able to do so from Chapter 163.[27][28][29][6][7] It is unknown if this is an in-universe update, a retcon or a mistake.
    • Radar is similar in function to Echo, one of the seals of Yūma's Black Trigger, although it provides far less information.[30]
      • If Radar and Echo share the same mechanics, it would mean that Radar works by emitting a faint wave of trion much like a Sonar would sound.[30]

    References[edit source]

    1. 1.0 1.1 1.2 World Trigger MangaChapter 30 (p. 5)
    2. World Trigger MangaChapter 30 (p. 4)
    3. Daisuke Ashihara: Q: Are Radars and wires Optional Triggers?
      A: "Radar" is a Standard Equipment Trigger like trion bodies or the Bail Out function. "Spider", a Trigger that uses wires, is an Optional Trigger.
      Source: Twitter Q&A February 2015: Question 1
    4. 4.0 4.1 4.2 World Trigger MangaChapter 30 (p. 4-5)
    5. World Trigger MangaChapter 30 (p. 7)
    6. 6.0 6.1 6.2 6.3 World Trigger MangaChapter 171 (p. 17)
    7. 7.0 7.1 7.2 World Trigger MangaChapter 173 (p. 10)
    8. 8.0 8.1 8.2 World Trigger MangaChapter 124 (p. 3)
    9. 9.0 9.1 9.2 9.3 9.4 World Trigger MangaChapter 124 (p. 13)
    10. 10.0 10.1 10.2 World Trigger MangaChapter 133 (p. 8)
    11. World Trigger MangaChapter 134 (p. 9)
    12. 12.0 12.1 12.2 World Trigger MangaBorder Briefing File (p. 86)
    13. 13.0 13.1 13.2 Daisuke Ashihara: Q: When enemies show up on Radar, is it possible to use that to snipe?
      A: Compass points are displayed on Radar, but not elevation, so it seems impossible. Combined with the topography data that operators have, it is possible to grasp the approximate location of the mark, but it would be hard to pinpoint a human-sized opponent this way.
      Source: Twitter Q&A January 2015 Part 1
      Twitter Q&A January 2015 Part 2
    14. World Trigger MangaChapter 90 (p. 18)
    15. World Trigger MangaChapter 130 (p. 6-7)
    16. World Trigger MangaChapter 96 (p. 3)
    17. 17.0 17.1 17.2 Daisuke Ashihara: Q: In Chapter 30, Arashiyama instructed Satori to "raise Radar's precision by just 10 seconds", does this mean Satori has some kind of option trigger equipped?
      A: Precision adjustment is one of Radar's customary functions. Like Bailout, Radar is a "standard trigger", and anyone can use it at any time, but while in use trion is used up little by little (and by raising the precision more trion is used up too), so the outcome is that members with a surplus of trion use it. In this case, Satori was in charge of Radar.
      Source: Border Briefing File, Page 303, Question 140
    18. Daisuke Ashihara: Q: While Chameleon is in use, can Hound bullets track you? And do you show up on Radar?
      A: Hound bullets that use "Detection Guidance" can, but usually they are intercepted by walls and so on. Even during Stealth Mode, you still show up on Radar, so it’s possible to use that to make a rough counter-attack.
      Source: Volume 10, Question Corner 9
    19. World Trigger MangaChapter 136 (p. 1)
    20. World Trigger MangaChapter 46 (p. 16)
    21. World Trigger MangaChapter 127 (p. 12)
    22. World Trigger MangaChapter 133 (p. 5)
    23. 23.0 23.1 World Trigger MangaChapter 132 (p. 5)
    24. World Trigger MangaChapter 127 (p. 9)
    25. World Trigger MangaChapter 7 (p. 9)
    26. World Trigger MangaChapter 38 (p. 1)
    27. 27.0 27.1 World Trigger MangaChapter 163 (p. 1)
    28. World Trigger MangaChapter 165 (p. 15)
    29. World Trigger MangaChapter 167 (p. 7)
    30. 30.0 30.1 Daisuke Ashihara: Q: Please tell us "Echo" Seal's effect.
      A: It emits a faint wave of trion through which you can learn the terrain of the surroundings and any living beings, and the position, distance, and state of trion constructs.
      Source: Border Briefing File, Page 309, Question 186

    Navigation[edit source]

    Border Triggers
    Basic Equipment Bail OutRadarTrion Body
    Gunner AsteroidCobraGimletHornetHoundMeteorSalamanderTomahawkViper
    Sniper EgretIbisLightning
    Trap Switchbox
    Prototypes ConnectorDummy BeaconFull ArmsGeistIdatenMakōTeleporterTimer
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