Garmin SOUNDER 125 Owner's Manual & Reference

Contents

The GPS 125 Sounder will also display one of threealert messages concerning DGPS operation through themessage page:No DGPS Position— not enough data is availableto compute a DGPS position.No RTCM Input— the beacon receiver is notproperly connected or the baud rates do notmatch.RTCM Input Failed— DGPS data was beingreceived but has been lost.System SetupThe first setup page is the system setup page,which is used to select the operating mode, time offsetand screen preferences. The GPS 125 Sounder has fouroperating modes:• ’Normal’ Mode is the mode used for actualnavigation. Satellite data is acquired and used infiguring and displaying your position andmovement.• ’Simulator’ Mode allows you to operate the unitwithout acquiring satellites, and is ideal for prac-ticing or entering waypoints and routes while athome.• ’GPS Only’ Mode does not display any informa-tion on the Sounder Page. This is useful whenusing the unit for land navigation while enrouteto the water.• ’Sounder Only’ Mode will not display GPSinformation (such as position, speed, heading,and map functions).To select an operating mode:1. Highlight the ‘MODE’ field and press F.2. Use the arrow keypad to select a mode and pressF.51Alert messages will signalany problems with DGPSoperation.REFERENCEDGPS Interface& System SetupThe GPS 125 Sounders fouroperating modes areaccessed through the systemsetup submenu.