Spectra Geospatial Carbon Fiber Base Pole Extension – 25 cm The Spectra Geospatial Carbon Fiber Base Pole Extension is a 25 cm (9.5") extension designed for use with compatible SP85, SP80, and SP60 GNSS receiver radio modules. Constructed from lightweight carbon fiber, it features an oblong aperture that allows coaxial cables to be connected directly to the radio module while mounted, supporting clean and efficient base station setups in the field. Key Features • Lightweight carbon fiber 25 cm (9.5") base pole extension • Compatible with SP85, SP80, and SP60 radio modules • Oblong aperture allows direct coaxial cable connection • Supports efficient GNSS base station and RTK field setups • Durable construction for surveying and positioning applications