Garmin GPSMAP 740 Zusatzhandbuch - Seite 10

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Garmin GPSMAP 740 Zusatzhandbuch
XM WX Satellite Weather and XM Satellite Radio

Viewing Fishing Information

The fishing screen shows present water temperature, present surface-pressure conditions, and fishing
forecasts.
From the Home screen, select
Surface Pressure
Surface-pressure information appears using pressure isobars and pressure centers. Isobars connect
points of equal pressure. Pressure readings can help to determine weather and wind conditions in
an area. High-pressure areas are generally associated with fair weather. Low-pressure areas are
generally associated with clouds and the chance of precipitation. Isobars packed closely together
show a strong pressure gradient. Strong pressure gradients are associated with areas of stronger
winds.
Pressure units are shown in millibars (mb), inches of Mercury (inHg), and hectopascals (hPa).
Water Temperature Data
Colored shading indicates the surface temperature of the water.
Water temperature
legend
Isobars
Forecasting Fish Location
You can show areas that contain optimal weather conditions for specific species of fish.
1. From the Home screen, select
2. Select a species of fish.
Shaded areas indicate optimal fishing areas.
3. Repeat step 2 to show areas with optimal weather conditions for additional species of fish.
Weather
> Fishing.
Weather
>
Fishing
700 Series XM WX Satellite Weather
>
Menu
>
Fish
Species.
and XM
Satellite Radio Supplement
®
®
Water
temperature
shading