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no my main concern was just from antena to box. i'm using belden 9913f vf=.84. right now i have 12ft of the 9913f and after some reading if i do it by the formula it should be 14ft for the 468 and 15ft for the 492. i was told to set the swr with a barefoot radio to 1.1 if it goes up with amp on to play with the jumper lengh to bring it down??? also if i'm using the 12ft to bird meter then a 6 ft jumper from meter to box does that mean that i have 18ft.4' of coax??and when you add the 6ft from radio to box is that now 24ft.4' or does it stay 18ft 4' or 12ft. sorry for the dumm question just curious.