USGlobalsat DG-100 User Guide - Manual (Page 22)

DG-100 page 22
Speed filter
The Speed filter function allows you to display the data which match the criteria. Select
the range criteria and input speed value (integer), then click “Refresh” button.
Delete the data from memory
If you have already saved your data to PC, then you can click on [TrackRecord] >
[Delete All] to delete all data from the DG-100 memory.
Metric system or imperial system
You can click on [Settings] > [Metric System] to check this item for displaying the
distance by “meters” and speed by “km/hour”, or uncheck it for displaying the
distance by “feet” and speed by “mile/hour”.