[Suicide Junkie]

Perhaps we're thinking about it the wrong way here.

AFAIK, the only reason Radar even came into this discussion was because you wanted to call the minimap a radar screen.

Your ship's built-in detection equipment builds up a full system map quite quickly, and allows you to view a small angle of the picture in great detail (on-screen vision), and allows you to pick off one particular object for a very narrow beam scan.

The only things you need extra detection equipment for is:
- to extend the effective range of the 360 proximity scanners (which provide IFF, heading and relative position tracking of planets, ships, fighters, missiles and even bolts(!))
- to allow penetrating scans of enemy ships to the level of IDing individual components, damage %, cargo & etc through the hull.