Trimble 25 cm Pole Extension Extend the height of your GNSS setup with the Trimble 25 cm pole extension. Constructed from durable fiberglass , this extension adds 25 cm (9.84 in) of height between your range pole and GNSS receiver, making it ideal for base station configurations and applications requiring additional antenna clearance. The standard 5/8" x 11 thread connections ensure quick integration with compatible Trimble range poles and GNSS equipment. Key Features Adds 25 cm (9.84 in) of height to compatible GNSS range poles and base station setups. Durable fiberglass construction provides lightweight strength for demanding field use. Standard 5/8" x 11 female-to-male threads for easy integration with compatible surveying accessories. Genuine Trimble pole extension engineered for dependable surveying and geospatial applications. Compatible With Trimble R Series GNSS Receivers: R980 , R780 , R580, R12i Legacy Trimble R Series GNSS Receivers: R12, R10, R8s , R2