The 7400-GPS GPS option seamlessly integrates into Avenue system by plugging directly onto 7400 module. It can be easily installed in the field. The 7400-GPS option consists of a compact, weatherproof antenna (with internal high gain preamp) and a receiver sub module which mounts directly to the 7400 module. The included GPS antenna mounts onto standard 3/4-inch threaded pipe, metal or plastic. Connection from the F-style coaxial fitting on the antenna to the appropriate BNC on the Avenue Frame can be made with customer supplied standard 75 ohms cable. The coax cable can be routed through the center of the pipe for a completely waterproof installation. When low loss cable such as Belden 1694A is used, the antenna can be placed up to 200ft (60m) from the frame. Ideally, the antenna is mounted outdoors where it has an unobstructed view of the sky.