Originally Posted by
safelife
Benefit, controller can see thru fog, as the cameras are infra-red sensitive.
IR/UV/thermal cameras are NOT standard equpiment in digital tower setups today. Sure, a few people do offer the technology, but it's very rare, and typically not considered to be worth the cost. Besides, in foggy conditions, it won't actually help much, since fog also blocks non-visible light spectrums. And even if it did improve vision, how would it help the controller to be able to see through fog if the pilot can't find the runway?