IFF System

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(Redirected from Scanner)
Green = station/buoy
Red = enemy
Purple = police
Yellow = Neutrals


The scanner (not to be confused with either the Compass or the View Screen) picks up everything within 25km (except the surfaces of planets, suns, etc.). It is a sophisticated instrument that displays a 3D view of space in the immediate vicinity of your ship as seen from a point above it, and all other objects within.

The IFF (Identification, friend or foe) system, comes fitted to every flight-grid scanner in craft deemed space-worthy as it is integral to both navigation and combat, and overlays the scanner blips with colours identifying what is what.


Note that planet (and moon) surfaces do not show up on the scanner. Neither does the sun! If this proves to be an issue, some oxp HUDs provide warning on close approaches (eg Vimana HUD).

Facing Quadrant Lines

These change depending on the view (F1/F2/F3/F4) and help indicate which way direction the viewscreen is showing.

Distance Lines

The distance lines change as you zoom in and out (see Zoom mode below).

Communications Display

If a ship within the scan range should broadcast a message, the IFF system will translate this as a ripple effect that will surround the flag of the communicating ship.

Cascade Explosion Display

The Q bomb's detonation (and cascade explosions) are also shown as translucent blue spheres with a magenta edge where they intersect the horizontal plane.

Zoom mode and Range Display

The IFF scanner can be zoomed up to 5x to allow precise navigation for intercepting smaller items (use of z & Z buttons). At each magnification (x1/x2/x3/x4/x5) the markings (distance lines) on the scanner automatically adjust to give a representation of target ranges.


  • Iffns-w.gif Unpowered objects unable to mass-lock the in-system jump drive.
  • Iffns-y.gif Powered craft.
  • Iffns-r.gif Powered craft identified as hostile.
  • Iffns-p.gif Police.
  • Iffns-g.gif Space stations.
  • Iffns-c.gif Missile.
  • Iffns-pm.gif Police on intercept.
  • Iffns-gy.gif Navigation buoys.
  • Iffns-rg.gif Thargoids.
  • Iffns-ry.gif Active Q bomb (about to detonate).
  • Iffns-bc.gif Wormhole.
Non-linear scanner (and the Dangerous HUD)


  • Tired of being jumped by pirates because your scanner was zoomed in and you didn't see them? Want to zoom in on a close adversary in a dogfight without losing track of more distant ships? Then you need the new nonlinear scanner!
Based on captured Thargon technology, and extensively re-engineered by Faulcon de Lacy skunkworks division so you don't need compound eyes to use it, the nonlinear scanner is the answer to every pilot's scanning problems.
  • Need closer zooming? Then you need ultra-zoom scanning (x1, x2, x4, x8, x16 instead of x1, x2, x3, x4, x5)
  • Need a larger scanner? Then you need a new HUD.

All available through use of .oxp HUDs - read HUDSelector (downloadable through the in-game Expansions Manager) - and look at HUD images here.


Famously, back in 1983/4, Ian Bell & David Braben had just a smidgen of memory left when they were writing the code for Classic Elite - and invented the scanner and bunged it into the game at the last minute! The IFF was first introduced in Elite A in 1997.


All ships deemed space-worthy must have the IFF system installed



To enable the non-linear scanner and ultra-zoom functions

That lets one change HUDs and keep the functionality without having to tweak the new HUD each time.
Note that by setting it this way, if the HUD is changed while in flight the settings will revert to the HUD defaults until the next time you dock.
And also if you have HUD Selector OXP installed it will reset your scanner and banjax the following!

Create a script.js as follows:

this.name = "change scanner specs";

this.shipWillLaunchFromStation = function() {
	 player.ship.scannerNonLinear = true;
	 player.ship.scannerUltraZoom = true;

If you do not already have a folder titled config inside your AddOns folder, create one. Place the script.js inside this config folder. Restart the game (you may need to hold down the shift key while doing so).


Oolite Equipment
Standard Equipment
Astrogation ConsoleCargo HoldCompassEnergy banksEngine/Main Drive • HUDIFF ScannerLife Support SystemsMissilePulse LaserShieldsShip's HullTorus Jump DriveView Screen • Witchspace/Hyperspace Drive
Optional Equipment
Advanced Navigational ArrayAdvanced Space CompassCargo Bay ExpansionDocking ComputersE.C.M. SystemEscape PodExtra Energy UnitExternal Heat ShieldingFuel ScoopsGalactic HyperdriveIntegrated Targeting SystemMilitary Shield EnhancementMulti-Targeting SystemNaval Energy UnitPassenger BerthScanner Targeting EnhancementShield BoostersTarget System Memory ExpansionWitchdrive Fuel InjectorsWormhole Scanner
Beam LaserECM Hardened MissileEnergy BombMilitary LaserMining LaserMissilePulse LaserQuirium Cascade MineTwin Plasma Cannon