ed . ▁SL Q - 3 2 ( V ) 2 ▁– ▁Initial ly ▁the ▁most ▁common ▁variant , ▁the ▁( V ) 2 ▁added ▁the ▁ability ▁to ▁receive ▁surve ill ance ▁and ▁target ing ▁rad ars . ▁ ▁This ▁provided ▁a ▁pass ive ▁target ing ▁cap ability ▁for ▁Har po on ▁miss ile - equ ipped ▁ships . ▁ ▁The ▁( V ) 2 ▁was ▁installed ▁on ▁fr ig ates , ▁destroy ers , ▁and ▁ ▁Coast ▁Guard ▁C ut ters . ▁SL Q - 3 2 ( V ) 3 ▁– ▁Exp and ing ▁on ▁the ▁( V ) 2 ' s ▁capabilities , ▁the ▁( V ) 3 ▁added ▁active ▁rad ar - j am ming ▁cap ability . ▁ ▁The ▁( V ) 3 ▁was ▁installed ▁on ▁various ▁combat ants ▁such ▁as ▁cru is ers , ▁batt les hips , ▁large ▁am ph ib ious ▁ships ▁and ▁high - value ▁re pl en ishment ▁vessels . ▁SL Q - 3 2 ( V ) 4 ▁– ▁Design ed ▁for ▁installation ▁on ▁aircraft ▁carri ers , ▁the ▁( V ) 4 ▁consisted ▁of ▁two ▁( V ) 3 ▁systems , ▁one ▁for ▁each ▁side ▁of ▁the ▁ship , ▁tied ▁to ▁a ▁common ▁computer ▁and ▁display ▁console . ▁ ▁Add itional ▁line ▁replace able ▁units ▁and ▁software ▁were ▁added ▁to ▁support ▁the ▁wide ▁separation ▁of ▁the ▁two ▁anten na / elect ron ics ▁en clos ures . ▁ ▁SL Q - 3 2 ( V ) 5 ▁– ▁The ▁( V