The Trimble® Tempest™ antenna is a high quality GPS antenna for GeoExplorer® series handhelds and GPS Pathfinder® Pro series receivers that is resistant to signal interference and multipath. It is especially useful in difficult environments such as under canopy and in urban canyons. Datasheet Quote

The Trimble Tornado™ external dual frequency antenna contains advanced technology for extremely low multipath and outstanding low elevation satellite tracking. Use the Tornado antenna together with a GeoXH™or Pathfinder® ProXH™ receiver for high-accuracy mapping and GIS data collection. Datasheet Quote