Navigation System - The compact CenterLine 220 is designed to let you benefit from GPS guidance with any field operation. Inside the compact guidance system is a high-quality WAAS/EGNOS GPS receiver and the guidance capabilities that make TeeJet leaders in GPS guidance. Versatile GPS guidance in a compact, portable package. LED Lightbar guidance plus a graphic display for complete guidance information. High-quality, 5 Hz internal GPS engine with external antenna. Simple setup gets you up and running in no time. Straight-line (parallel) and curved AB guidance modes. Integrated look-ahead functionality anticipates vehicle’s future position. Return-to-point feature. Durable, sealed rubber keypad is easy to see and provides good tactile feedback. Provides RADAR-like speed signal output for use with other control systems that require a ground speed signal.