This GPS antenna is typically used with the TX320 GOES satellite transmitter or the AL200 ALERT modulator. This active GPS antenna provides 28 dBi of preamp for weak signal or long cable run applications. It also provides filtering to improve immunity to other RF signals, making it highly jam resistant. Its weatherproof package is designed to withstand exposure to shock, vibration, extreme temperatures, rain, snow, and sun. The antenna conveniently mounts to any 1 to 14" thread or 3/4" pipe thread, which includes the 30626 and 7623 mounts offered by Campbell Scientific.
The 17992 is a 3.3 V active antenna. The voltage is supplied by the GPS receiver using the center pin of the coaxial cable, which is used to attach the antenna to the receiver. The power is used for active high gain preamp of the received signal and for RF filtering. The RF connector is type TNC (jack) and is located inside the threaded socket.
The 17992 is used with the TX320 and AL200.