In another form, the antenna is mounted atop {TAIL ~ an articulated two leg boom} attached to a wheeled carriage that may be self propelled or drawn and which has controls for operating the boom and for {HEAD ~ direction} the antenna 
In another form , the antenna is mounted atop { TAIL ~ an articulated two leg boom } attached to a wheeled carriage that may be self propelled or drawn and which has controls for operating the boom and for { HEAD ~ direction } the antenna
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