[primitive]

Originally posted by SpaceBadger:


So, if I understand what primitive is saying, you need to keep the first type of sensor (your best combat sensor) on each ship, plus have one of the best type of either tachyon or gravitic somewhere within each system (or with each outsystem fleet) to spot cloaked ships. Is that it?

Yes, but don't forget Hyper Optics, which is cheaper to research than tachyon or gravitic sensors (Advanced Military Science level 4-6).
Psychic and Temporal have pretty cheap (researchwise) sensors also.