▁a ▁higher ▁ 1 0   G Hz ▁frequency ▁for ▁both ▁R AF ▁Path find er ▁Mos qu itos ▁and ▁USA AF ▁B - 2 4 ▁Liber ators ▁that ▁premier ed ▁their ▁use ▁over ▁Europe , ▁deployed ▁a ▁bomb ing ▁rad ar ▁that ▁could ▁not ▁be ▁detected ▁by ▁the ▁German ▁N ax os ▁equipment . ▁The ▁B f ▁ 1 0 9 G ▁series ▁aircraft ▁fitted ▁with ▁the ▁N ax os ▁rad ar ▁detect ors ▁also ▁were ▁fitted ▁with ▁the ▁low - ▁to ▁mid - V H F ▁band ▁Fu G ▁ 2 1 7 / 2 1 8 ▁Ne pt un ▁active ▁search ▁rad ars , ▁as ▁were ▁F ock e - W ulf ▁F w ▁ 1 9 0 ▁A - 6 / R 1 1 ▁aircraft : ▁these ▁served ▁as ▁rad ar - equ ipped ▁night - fig h ters ▁with ▁N J Gr ▁ 1 0 ▁and ▁N J G ▁ 1 1 . ▁A ▁sole ▁F w ▁ 1 9 0 ▁A - 6 ▁W k . N r . 5 5 0 2 1 4 ▁fitted ▁with ▁Fu G ▁ 2 1 7 ▁is ▁a ▁rare ▁surv iv or . ▁ ▁The ▁effective ▁Sch rä ge ▁Musik ▁ ▁off ensive ▁arm ament ▁fit ment ▁was ▁the ▁German ▁name ▁given ▁to ▁install ations ▁of ▁up ward - f iring ▁aut oc annon ▁mounted ▁in ▁large , ▁tw in - eng ined ▁night ▁f igh ters ▁by ▁the ▁Luft wa ffe ▁and ▁both ▁the ▁Imperial ▁Japanese ▁Navy ▁Air ▁Service