I have added 10' of aluminum mast pole to my antenna, it puts my cable run to radio in almost the exact length as specified. I have looped the cable around the pole 4 times and ty-wrapped so it doesnt swing in the wind ( sort of like the stripe on a barber pole). Receiving has not been affected but I feel my transmission is weaker. My SWR is 1.1, I show full modulation. Can this b affecting it? Coax against alum?