Garmin Personal Navigator GPS 48 Owner's Manual & Reference

Also see for Personal Navigator GPS 48: Declaration of conformity Supplementary guide Specifications

Garmin Personal Navigator GPS 48 Owner's Manual & Reference Manual pdf 18 page image

Satellite PageThe GPS 48’s Satellite Page displays the status of vari-ous receiver functions. The status information will helpyou understand what the GPS 48 is doing at any giventime, and will tell you whether or not the receiver hascalculated a position fix.Sky View and Signal Strength BarsThe sky view and signal strength bars give you anindication of what satellites are visible to the receiver,whether or not they are being used to calculate a posi-tion fix, and the signal quality. The satellite sky viewshows a bird’s-eye-view of the position of each availablesatellite relative to the unit’s last known position. Theouter circle represents the horizon (north up); the innercircle is 45º above the horizon; and the center point isdirectly overhead. You can use the sky view to helpdetermine if any satellites are being blocked, andwhether you have a current position fix (indicated by a‘2D NAV’ or ‘3D NAV’ in the status field). You can alsoset the sky view to a track up configuration by changingthe ‘orientation’ option on the Map Page. (See pg. 24 forsetup instructions.)While the receiver is looking for satellites the satellitenumber will be highlighted in the sky view. When thereceiver locates and begins satellite reception, the satellitenumber will no longer be highlighted and a hollowstrength indicator will be displayed at the bottom of thepage. After the receiver has gathered the satellite infor-mation and can use the satellite for navigation thestrength indicator bar will become solid. As soon as theGPS 48 has gathered enough satellites to calculate a posi-tion the status field will indicate a 2D or 3D fix.Satellite PageREFERENCE14The GPS 48 SatellitePage will help you deter-mine which satellites arein view, and whether ornot any satellites arebeing “shaded” or blockedfrom receiving satellitesignals (See satellite 02above).By periodically monitor-ing the signal strengthbars at the bottom of thepage and the north upsky view, you will be ableto see how moving toanother area with aclearer view of the skywill improve satellitereception and speed upsignal acquisition.BatteryIndicatorEstimatedPosition ErrorSignal StrengthIndicatorsSkyviewDisplayStatusField