Garmin GTN 750 Pilot's Guide - Page 375

Message GPS NAVIGATION LOST Erroneous position. Use other navigation source. GPS RECEIVER GPS receiver has failed. Check GPS coax for electrical short. GPS RECEIVER Low internal clock battery. GPS RECEIVER GPS receiver needs service. GPS SEARCHING SKY Ensure GPS antenna has an unobstructed view of the sky. Description GPS position has been lost due to erroneous position. Internal communication to the SBAS board is inoperative. The GPS module indicates that its clock battery is low. The unit will function normally, but may take a longer than normal period to acquire a GPS position. The GPS module is reporting that it needs service. The GPS module may continue to function. The GPS module is acquiring position and may take longer than normal. This message normally occurs after initial installation or if the unit has not been powered for several weeks. Action Use a different GPS receiver or a non-GPS based source of navigation. Contact dealer for service. Use a different GPS receiver or a non-GPS based source of navigation. Contact dealer for service. Contact dealer for service. Use a different GPS receiver or a non-GPS based source of navigation. Contact dealer for service. No action is necessary; message is informational only. Foreword Getting Started Audio & Xpdr Ctrl Com/Nav FPL Direct-To Proc Charts Wpt Info Map Traffic Terrain Weather Nearest Music Utilities System Messages Symbols Appendix 190-01007-03 Rev. B Garmin GTN 725/750 Pilot's Guide 17-9 Index