I just purchased a GA25BNC antenna for my 276C. There weren't any instructions. I have a couple of questions. Is there a proper "orientation" for the antenna? (Does the antenna need to be mounted so that it has trhe most surface area facing up?). Is is OK to coil the extra length of wire or do need to route it somewhere? Can I use a couple of zip ties to securely mount the antenna or will the interfere with reception? I can use the 276C without problems, but as my questions show, I have no idea how it all works!! Thanks!!