ATP-3-09-12 Field Artillery Counterfire and Weapons Locating Radar Operations Download
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Appendix D D-4 ATP 3-09.12 26 October 2021 Figure D-3. Dead space area D-8. Figure D-3 gives an example of no action taken with a mask variation of 60 mils. This allows 20 mils of track volume over portions of the search sector. This creates a dead space area. The result is an area where enemy indirect fire cannot be detected. Figure D-4 shows the possible adverse effects of a dead space. Figure D-4. Effects of dead space area D-9. The first solution is to raise the low mask angle. This will provide enough track volume to eliminate the large dead space area. Nonetheless, this solution will produce a small dead space area under the low mask area. This may or may not be acceptable. Figure D-5, on page D-5, shows the result of raising the low mask angle.