Garmin 128 Owner's Manual

Also see for GPS 126: Specifications

Garmin 128 Owner's Manual Manual pdf 18 page image

Satellite PageThe GPS 126/128’s Satellite Page displays the statusof various receiver functions. The status informationwill help you understand what the GPS 126/128 isdoing at any given time, and will tell you whether ornot the receiver has calculated 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 or track up);the inner circle 45º above the horizon; and the centerpoint directly overhead. You can use the sky view tohelp determine 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. 41for Map Setup instructions.)When the receiver is looking for a particular satel-lite, the corresponding signal strength bar will be blankand the sky view indicator will be highlighted. Once thereceiver has found the satellite, a hollow signal strengthbar will appear, indicating that the satellite has beenfound and the receiver is collecting data from it. Thesatellite number in the sky view will no longer appearhighlighted. As soon as the GPS 126/128 has collectedthe necessary data to calculate a fix, the status field willindicate a 2D or 3D status.Satellite PageREFERENCE14The GPS 126/128’sSatellite Page will helpyou determine whichsatellites are in view, andwhether or not any satel-lites are being “shaded”or blocked. (See satellites07 and 19 above).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.HorizontalAccuracySignal StrengthIndicatorsSkyviewDisplayStatusField