Suunto X9 Instruction Manual

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3.6.3. GPS fix
The selected GPS fix interval determines how often your 
Suunto X9 establishes a satellite connection and how often it 
stores data in the memory. This in turn affects the battery life. 
To select a GPS fix:
1. In the Set menu, select GPS fix with UP/DOWN and press 
ENTER. The fix interval field is activated.
2.  Select a suitable fix interval with UP/DOWN and press 
ENTER.
When the Navigate function is on, your Suunto X9 uses the 
following settings depending on the chosen fix interval.
NOTE: You can change GPS fix settings during an activity.
NOTE:  If you have selected the Manual or 1 min, you can reactivate the GPS by 
pressing STOP/BACK for more than 2 seconds. This is possible in the following 
modes and functions: Activity and Navigation main displays, Find Home and Position.
Mark Memp and Mark Home activate the GPS automatically and after marking the 
point return to the previously selected GPS fix.
NOTE:  If you use the Manual or 1 min, the GPS accuracy and activity bar acts 
normally when the GPS is active. When the GPS is in the sleep mode (saving battery 
power), it displays 
 when the data from the last location was valid. It displays 
GPS fix 
interval
Estimated 
duration
Track log 
interval
Altitude profile 
interval
Memory 
capacity (max. 
25 track logs)
1 sec
4,5 h
10 s
10 s
24 h
1 min
12 h
1 min
20 s
145 h
Manual
Depends on 
usage, >500 
positions
Manual
60 s
up to 400 h