Garmin G2000 Pilots Guide - Page 52

SYSTEM OVERVIEW System Overview Satellite Constellation Diagram Satellite Signal Strength Bars Satellite Signal Information Status FLIGHT INSTRUMENTS EIS AAUUDDI&IOOCPN&ASCNENLS FLIGHT MANAGEMENT HAZARD AVOIDANCE AFCS GPS Receiver Status Figure 1-29 GPS Receiver Information Selecting the GPS receiver: 1) From the Home Screen, touch Utilities > GPS Status. 2) Touch the GPS 1 annunciator button to select the #1 GPS receiver. The button annunciator will be green when selected on. The system displays the GPS 1 STATUS Pane. 3) Touch the GPS 2 annunciator button to select the #2 GPS receiver. The button annunciator will be green when selected on. The system displays the GPS 2 STATUS Pane. Satellite constellation diagram Satellites currently in view are shown at their respective positions on a sky view diagram. The sky view is always in a north-up orientation, with the outer circle representing the horizon, the inner circle representing 45° above the horizon, and the center point showing the position directly overhead. Each satellite is represented by an oval containing the Pseudo-random noise (PRN) number (i.e., satellite identification number). Satellites whose signals are currently being used are represented by solid ovals. Satellite signal status The accuracy of the aircraft's GPS fix is calculated using Estimated Position Uncertainty (EPU), Dilution of Precision (DOP), and horizontal and vertical figures of merit (HFOM and VFOM). EPU is the radius of a circle centered on an estimated horizontal position in which actual position has 95% probability of laying. EPU is a statistical error indication and not an actual error measurement. DOP measures satellite geometry quality (i.e., number of satellites received and where they are relative to each other) on a range from 0.0 to 9.9, with lower numbers denoting better accuracy. HFOM and VFOM, 38 Garmin G2000 Pilot's Guide for the Cessna T240 190-01263-01 Rev. A ADDITIONAL FEATURES APPENDICES INDEX