PRECISION TECHNOLOGY - Advanced Performance Unique AvL Cable Drive drive reduces backlash to nearly zero Largest aperture for van-sized vehicles provides maximum antenna gain and analog     capability Lightweight design maximizes vehicle stability High-performance C & Ku-band standard, X band available EXTRAORDINARY RELIABILITY - Never Miss A Shot Redundant cables with pre-loaded tension provide accurate positioning Servo-quality DC motors assure smooth operation when peaking antenna Easy-to-use manual hand cranks installed on all axii Fully automatic satellite locator with GPS and flux-gate optional MAXIMUM DURABILITY - Maintenance-Free Patent-pending cable drive never needs maintenance or replacement Extra weather protection for motors reduces moisture and extends life