He described in an earlier post that the System consists of 3 sensor eyes on each side rotated so that the detection area from his source is reached.
He said multiple times he can't change what the sensors see or what the field of view is. They are the same sensors used in the A-10c module, because he can't add new ones to the game, and he can't adjust the ones he uses:
myHelljumper: The D2M will only detect missiles with active rocket motor right ?
Zeus67: I think so. I have no control over that.
Zeus67:
Due to thecnical constrains I had to implement 3 "eyes" per sensor.
The coverage is still 180 degrees azimuth and 80 degrees elevation. Unfortunately there is no way for me to block the upper coverage so I rotated the sensor eyes to simulate it.
It looks like there is no "blind spot" but that is an optical illusion created by the drawing of the rotated cones.
That is what I understood from what Zeus wrote