Garmin GTN 750 Cockpit Reference Guide - Page 50

Message Description GPS NAVIGATION LOST- GPS position has been Insufficient satellites. lost due to lack of Use other navigation satellites. source. GPS NAVIGATION LOST- GPS position has been Erroneous position. Use lost due to erroneous other navigation source. position. GPS RECEIVERGPS receiver has failed. Check GPS coax for electrical short. GPS RECEIVERLow internal clock battery. GPS RECEIVERGPS receiver needs service. GPS SEARCHING SKYEnsure GPS antenna has an unobstructed view of the sky. Internal communication to the GPS module 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. 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. Messages 44 GTN 725/750 Cockpit Reference Guide (CRG) 190-01007-04 Rev. B