inputs.text: easy accuracy improvehement low price - practical testing trail found garmin v basic antenna lose satellite coverage significantly sooner gps 12s fact times gps 12 not lose coverage garmin v goes installed gilsson amplified gps bnc external antenna garmin v realworld observationsi spent minutes research web recommendations mounting patch antenna like pretty simply put someplace 360degree unobstructed \\view\\ sky could mean one thing put roof racknext figure run cable pretty easy one small spot front corner top meets windshield gap large enough cable pass without crushed released top fed covered cable would exposed wire harness coveringi attached antenna bracket roof rack mounted antenna bracket antenna magnets ehembedded base not make feel confident ran two wire ties around keep wandering not think plastic interfere signal wiretied cable behind roof rack frame best could provide protection tree branches keep whistling drive extra cable stash inside cabthe satellite reception results pretty good accuracy running 42 feet internal antenna increased accuracy 15 feet three four satellites locked internal antenna 810 external one bodes well satellite reception woods