Correlation boxes require 2 operator inputs to determine the initial correlation box values for the FP's Location and __________.

• A. Azimuth uncertainty
• B. Elevation
• C. Range
• D. Bandwidth

Answer: (A)

Correlating data about a Fire Point starts with defining where to look and how uncertain that location is in the horizontal plane. You set the center of the initial correlation box with the known FP location, and you specify how wide the search should be around that center by using azimuth uncertainty. The azimuth uncertainty captures the possible error in bearing, so the box spans enough area to catch the real point even if the reported bearing is off by that amount. Elevation, range, and bandwidth aren’t used to shape this initial horizontal search area in the same way: elevation is a vertical angle, range is a distance, and bandwidth is a signal-processing parameter. So FP location plus azimuth uncertainty provides the proper seed for the correlation box.