Track intervals, sizes, and capacity
The 60CSx offers track logging frequency by time, distance, or in automatic mode. The automatic mode frequencies are calculated based on the change of time, position, and direction (heading). Five frequency options are available. I tested all of them and found these results:
Most often setting: 5.1 seconds average interval
More often setting: 6.6 seconds average interval
Normal setting: 7.5 seconds average interval
Less often setting: 8.4 seconds average interval
Least often setting: 9.4 seconds average interval
These results were obtained by logging a combination of about 75% running and 25% walking for four laps around a 0.5-kilometer (about 0.3-mile) track. Hiking would be slower so the frequency would be somewhat less.
The Least often setting would provide more than enough detail. The receiver will hold a maximum of 10,000 track points in memory. Logging at a 10-second interval for 24 hours would produce 8640 points, and since I will be saving the track log to the SD card, and I won’t be logging for 24 hours per day, the maximum track size should be no problem.
The track files used about one kilobyte for each 8.5 points, so 24 hours of logging at 10-second intervals would take about 1 megabyte. Since I have a 2 gigabyte SD card and I expect to use less than half of its capacity for maps, storage space will not be an issue.
|