And now to dispel a couple of myths and confuse people with a bit of the inside workings of the game (and to introduce an interesting 'cheat').
First of all, the base information screen regarding the radars is highly erroneous. Though it may list the large and small radars, this does NOT affect the base's ability to detect UFOs. It may look nice to have a full radar bar, but in truth, it has 0 effect on your detection abilities and tracking ranges.
Why? Because you can only make use of 1 of each type of radar at any given time. Any duplicate radar will just be a waste of money, unless you built it for the purpose of using its passageways for base defence.
Every base has three variables for radar detection. I call them Short, Long and Hyperwave detection.
See, A short Radar gives you a 10 point boost in Short detection. A large radar gives you a 20 point boost in Short range detection AND Long range detection. So if you build a short and a long range radar, your Short range detection will be 30 and your long range detection will be 20. The game will only allow a base actually pick up UFOs if one of these three variables is greater than 0.
Any additional radar will not upgrade these values further. A hyperwave decoder adds 100 Hyperwave detection on top of the small and short radar detection abilities. However, hyperwave detection will supersede the other two detection types hence why you don't really need them.
Also, even with multiple radars of the same type, the detection range and the tracking range stays the same. Detection range is how far away the UFO will have to be before you pick it up on radar, and tracking range is how far you can watch a UFO that has been detected until it falls off the radar. Note that UFOs appearing within your radar sweep radius haven't actually been evading your Radars. They were actually get spawned that close to your base. (think of it as them coming in down from space at that point)
And now for the 'cheat'.
The game always recalculates the base's detection abilities every time a radar is built (when the game reports that a Radar was built at base X). But the interesting thing is, the game does not recalculate the radar abilities when you dismantle a radar and pretty much leaves them in. So, in effect, by removing a radar, you'll still get to enjoy its benefits until you build another radar, but without having to pay for the maintenance!
Want to see this in action? Start a brand new game. Build something to connect the left hangar to the base and then dismantle the small radar. Watch in awe as you continue to pick up UFOs! Compare this with building a brand new base and leaving it as - is, the new base will never pick up UFOs.
Now, if you were to build a hyperwave decoder at a base, and then dismantle it the moment it's built, you'll get to continue detecting UFOs with the HWD's wide radar sweep and decode their mission data. But, without having to pay for the maintenence!
Heh it's not that great a 'cheat'. It's only a very minor savings, as money is often not much of a problem by the time you can build lots of HWD's. The only real benefit is to make the base slightly smaller. Small bases are easier to defend, see.
Edited by NKF, 24 September 2004 - 01:40 PM.