AN/MSQ-18 is the battalion level fire distribution system. AN/MSQ-18 is one of the four major components (operations center) of the Missile Monitor.
U.S. Dept of the Army
<a rel="nofollow" class="external text" href="http://sill-www.army.mil/firesbulletin/archives/1960/MAY_1960/MAY_1960_FULL_EDITION.pdf"><i>Artillery Trends</i></a> May 1960, Page 46, Figure 28.