http://www.stormcam.org/antenna-trimble/
Trimble GeoExplorer 6000 Series Next Generation Handheld offers high accuracy GNSS positioning in urban … Trimble today introduced Canyons the new GeoExplorer ® 6000 series of high precision Global Navigation Satellite System handhelds. The series offers dramatic improvements in GNSS environment such as urban canyons and under tree canopy using satellite Floodlight Trimble ® ¢ shadow reduction technology.
GPS HELIX COIL ANTENNA – L1 BAND 1575.42Hz