The Iridium/GPS AA L1 Pipe Antenna is a combination Iridium and GPS active antenna and is designed to work primarily for marine applications and other harsh environments. It has a pipe thread mount that enables it to be securely mounted without the connectors being exposed to the environment. The antenna is fitted with SMA female connectors for both the GPS and Iridium connections and will work with all major brands of Iridium / GPS based devices.