Garmin 720 Marine GPS System User Manual


 
42 GPSMAP 700 Series Owner’s Manual
Almanac, On-boat, and Environmental Data
Conguring the VMG Source
You can specify the source of the velocity made good (VMG) data that is used to calculate true wind speed.
Before you can congure the VMG source, the wind gauge must be set to  (page 41). Water
speed is the speed reading from a water-speed sensor, and GPS speed is calculated from your GPS position.
1. From the Home screen, select >  >  >  > .
2. Complete an action:
Select .
Select .
Select  to allow your chartplotter to select the source.
Conguring the Wind Speed Source
You can specify whether the vessel speed data displayed on the compass is based on water speed or GPS
speed. Water speed is the speed reading from a water-speed sensor, and GPS speed is calculated from your
GPS position.
1. From the Home screen, select >  >  > .
2. Complete an action:
Select  >  to display the speed of the vessel based upon GPS readings.
Select  >  to display the speed of the vessel based upon the reading from a
water speed sensor.
Conguring the Heading Source of the Wind Gauge
You can specify the source of the heading displayed on the wind gauge. Magnetic heading is the heading data
received from a heading sensor, and GPS heading is calculated by your chartplotter GPS (course over ground).
1. From the Home screen, select >  >  > .
2. Complete an action:
Select  > .
Select  > .
Selecting the Range of the Close Hauled Wind Gauge
You can specify the range of the close hauled wind gauge for both the upwind scale and the downwind scale.
1. From the Home screen, select  >  >  > .
2. Complete an action:
Select . Set the maximum and minimum values that appear when the upwind
close hauled wind gauge appears.
Select . Set the maximum and minimum values that appear when the
downwind close hauled wind gauge appears.