Joule GPS User Guide page 33
CHAPTER 7: DEVICE MENU
Displays the current altitude above sea level. The value is listed in feet or meters, depending on what the user chose as the Units
setting in the Display section of the Device menu.
Optional. Enter your actual home altitude/elevation here (gathered from a known benchmark or topographic map data).
This value will be used to establish an offset for any variances in the actual barometer reading, making the displayed
elevation value more consistent for any day, regardless of weather conditions. If you live below sea level, negative values
can be entered as well. Leaving this field blank simply uses the Current Altitude as the base value for the ride.
Once selected the device will begin to use the actual entered value of your Home Altitude as the base from which to
calculate barometer differentials.
Current Altitude
Home Altitude
Use Home Altitude?
ALTIMETER MENU MENU INPUT OPTION
DEVICE ALTIMETER
The Joule GPS contains a barometric Altimeter that allows you to monitor your current altitude, also referred to as current elevation.
Selecting Altimeter in the Device menu shows the current altitude, as calculated from the barometer. You may set a known value for
“home” altitude or the elevation of the starting point of the ride, and adjust the value of the current altitude to this known value.
Main Menu
Ride
History
Sensors
Training
Navigation
User
Device
Back to Dashboard
9:34A 71º
INT
[ENTER]
Press & Hold
3 sec. to enter
Menus. Scroll
to Training;
Press •[ENTER] ;
Select an option,
FROM DASHBOARD
Device
Date and Time
Display
Memory
Altimeter
About Joule
Back to Main Menu
9:34A
Altimeter
Current Altitude
2480 (in ft or m)
Home Altitude
760 (ft/m)
Use Home Altitude?
Back to Device
9:34A
NOTE
: The barometer in your Joule GPS is very sensitive to barometric pressure. If weather patterns are changing,
resulting in a rising or falling barometer, the current elevation value will also change. The less stable the weather
the less stable the elevation value. However, even if the weather is not clear and windless, it is the pressure
differentials that are used to calculate elevation gains and losses, not the actual elevation change. The resulting
calculation during the relatively short time frame of any particular ride is accurate.
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