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4.5.9 Track Log settings 
You can set up automatic Track log saving, and fine-tune related settings. Tap the following buttons: 
,  ,  . 
Button Description 
Update Interval  This determines how often track points will be saved. Position 
information is normally received once a second from the GPS. If you do 
not need such a detailed log, you can increase this number to save track 
log space. 
Enable Auto-saving 
When auto-saving is enabled, you do not need to turn track log saving 
on and off manually. Clarion Mobile Map will automatically start 
recording the track log as soon as GPS position is available. 
Track Log Database Size 
This figure shows how much memory is used by the automatically saved 
track logs. 
Track Logs Max. Size  You can set the maximum database size for the automatically saved 
track logs. When the limit is reached, the oldest automatically saved 
track logs will be deleted. 
Create NMEA/SIRF Log 
Independently of the normal track log, you can instruct Clarion Mobile 
Map to record the native GPS data received from the GPS device. These 
logs are saved as separate text files on the memory card, and they 
cannot be shown or replayed in Clarion Mobile Map.