Line of sight (clicks)?

[FerretStyle]

Radar is hugely useful, and I wish there was a MS with 5 system slots because the only thing more necessary than radar is all of the tanking modules (anti-missile, shield, armor repair and emerald).

I always kept the 350 one on a fighter and popped it out whenever I needed to see a good distance. It's very helpful on escorts and such, because you really need to get the jump on the enemy before they start attacking your weak ships. It's also very helpful if you use missiles a lot, because it's pointless to use the long range missiles if the enemy sees you first.