Posted 24 October 2008 - 04:30 AM
Each base has three sonar types. Short, long and transmission resolver. Each have their own set detection and tracking radius around the base. The ranges are fixed and extra facilities won't extend this range (despite what the base info screen says - those are just facility counters).
A small sonar will add 10 to Short, a large sonar will had 20 to short and 20 to long. Having both of them will give you 30 short and 20 long. This means 20% chance of detecting something at every half hour interval within the long radius and 30% in the short radius. Actually short detection is vastly improved as you'll be be pinging at 30% and 20%.
Only one facility of each type will benefit the base, extra facilities aren't necessary except for base layout purposes.
The transmission resolver adds 100 to the base's Transmission Resolver stat. If combined with the other two sonar, you'd get TR:100, Long: 20, Short:30. Since the Transmission resolver's detection radius is greater than long and short, and it has 100% USO detection every time it does a sonar ping at the half hour intervals. This means that USOs will rarely get spotted in the long and short circles. Even if a USO does manage to break into Long or Short ranges between sonar pings, the TR will get them. This makes the two older facilities redundant.
NKF, narrow minded fuddy duddy who refuses to let go of the past and will not accept anything newer than 1979.