For use with Iridium satellite phone or docking station, this antenna delivers exceptional reception performance for permanent in-building or marine applications when no ground plane is available. – Hermetically sealed to withstand harsh natural/nautical environments. – Diameter: 7.6 cm (3.0 inches) – Height: 18.7 cm (7.4 inches) – Weight: 311.85 grams (11 ounces) – Operating Temperature -40° C to +85 ° C – Mounting bracket requires 3/4″ pipe fitting – Weatherable polymer white finish – Requires Cable Kit and Antenna Adapter Compatible with Iridium 9500, 9505, 9505A and 9555 satellite phones.