Multi-frequency High Precision Survey Antenna with 9M cable.  No pole/fixture included. Recommended accessory: https://www.tigersupplies.com/Products/Aluminum-Prism-Pole--Quick-Release-Clamp__ADI75014-.aspx Strong antenna signal. The antenna unit has high gain and wide beam pattern, which ensures good receiving effect for low elevation signal, and it can still work normally in some severe occlusion situations. high precision. Multi-feed design scheme is used to ensure the coincidence of phase center and geometric center, and minimize the influence of antenna on measurement. Strong anti-interference. It can work in complex environment. REFUND POLICY