Garmin Tactix 7 Pro, Руководство пользователя

Страница: 97 / 162

Setting the North Reference
You can set the directional reference used in calculating heading information.
1 Hold MENU.
2 Select Sensors & Accessories > Compass > North Ref..
3 Select an option:
• To set geographic north as the heading reference, select True.
• To set the magnetic declination for your location automatically, select Magnetic.
• To set grid north (000º) as the heading reference, select Grid.
• To set the magnetic variation value manually, select User > Mag. Variation, enter the magnetic variation,
and select Done.
Altimeter and Barometer
The watch contains an internal altimeter and barometer. The watch collects elevation and pressure data
continuously, even in low-power mode. The altimeter displays your approximate elevation based on pressure
changes. The barometer displays environmental pressure data based on the fixed elevation where the altimeter
was most recently calibrated (
Altimeter Settings, page 89 ).
Altimeter Readings
The altimeter functions differently depending on the fixed or variable settings.
You can adjust the altimeter settings by holding MENU, selecting Activities & Apps > Fly, selecting the activity
settings, and selecting Altimeter.
Sensor Fixed Variable
Altimeter with GPS On Elevation is equal to GPS elevation.
Elevation reflects changes in
ambient pressure and GPS position.
Altimeter with GPS Off Elevation remains constant.
Elevation reflects changes in
ambient pressure.
Altimeter Settings
Hold MENU, and select Sensors & Accessories > Altimeter.
Calibrate: Allows you to manually calibrate the altimeter sensor.
Auto Cal.: Allows the altimeter to self-calibrate each time you use satellite systems.
Sensor Mode: Sets the mode for the sensor. The Auto option uses both the altimeter and barometer according
to your movement. You can use the Altimeter Only option when your activity involves changes in altitude, or
the Barometer Only option when your activity does not involve changes in altitude.
Elevation: Sets the units of measure for elevation.
Calibrating the Barometric Altimeter
Your watch was already calibrated at the factory, and the watch uses automatic calibration at your GPS starting
point by default. You can manually calibrate the barometric altimeter if you know the correct elevation.
1 Hold MENU.
2 Select Sensors & Accessories > Altimeter.
3 Select an option:
• To calibrate automatically from your GPS starting point, select Auto Cal., and select an option.
• To enter the current elevation manually, select Calibrate > Enter Manually.
• To enter the current elevation from the digital elevation model, select Calibrate > Use DEM.
• To enter the current elevation from your GPS starting point, select Calibrate > Use GPS.
Sensors and Accessories 89