▁in ▁the ▁U . S . ▁fleet . ▁Most ▁( V ) 1 ▁systems ▁were ▁upgrad ed ▁to ▁( V ) 2 , ▁and ▁most ▁( V ) 2 ▁systems ▁were ▁upgrad ed ▁to ▁( V ) 3 . ▁This ▁was ▁normally ▁carried ▁out ▁during ▁a ▁major ▁ship ▁over ha ul . ▁ ▁Cont ract ▁ ▁The ▁initial ▁proc ure ment ▁process ▁was ▁built ▁around ▁a ▁“ design ▁to ▁price ” ▁concept ▁in ▁which ▁the ▁final ▁delivery ▁cost ▁per ▁system ▁was ▁fixed ▁in ▁the ▁contract . ▁ ▁The ▁SL Q - 3 2 ▁was ▁designed ▁to ▁support ▁the ▁protection ▁of ▁ships ▁against ▁anti - ship ▁miss iles ▁in ▁an ▁open ▁sea ▁environment . ▁ ▁After ▁initial ▁deployment ▁of ▁the ▁system , ▁naval ▁roles ▁began ▁to ▁change ▁requiring ▁ships ▁to ▁operate ▁much ▁closer ▁to ▁shore ▁in ▁dens er ▁signal ▁environments . ▁ ▁This ▁change ▁in ▁roles ▁required ▁changes ▁to ▁the ▁SL Q - 3 2 ▁systems ▁which ▁were ▁added ▁over ▁time . ▁ ▁With ▁experience ▁gained ▁working ▁with ▁the ▁SL Q - 3 2 , ▁couple d ▁with ▁improvements ▁to ▁the ▁hardware ▁and ▁software , ▁techn icians ▁and ▁operators ▁gradually ▁over c ame ▁the ▁initial ▁problems . ▁ ▁The ▁SL Q - 3 2 ▁is ▁now ▁the ▁main st ay ▁of ▁surface ▁electronic ▁war fare ▁in ▁the ▁U . S . ▁Navy ▁and ▁U . S . ▁Coast ▁Guard ' s ▁W ME C ▁ ▁Class ▁Sh ips . ▁ ▁Future ▁In ▁ 1 9 9 6 , ▁a ▁program ▁called ▁the ▁Advanced ▁Integr