In the installation directions, it states that there should be at least 3 feet between the transceiver and the antenna. What happens if the distance between the transceiver and antenna is about 18 inches, which is the approximate distance between the old VHF radio and the existing antenna. It seems to work fine with the old VHF radio with the exception of some static. My old radio is a Apelco, model, VHF 5160A. I have no idea how old it is, but it still works, but doesn't have all the features the new radio has. I figured it was time for an upgrade. Any information on problems I might see with the distance between the transceiver and the antenna would be great.