User's Manual

• PDOP: This is the maximum allowable Position Dilution of

Precision (PDOP), which is a combination of HDOP, VDOP

and Time Dilution of Precision. While exceeded, the GPS data

will not be used for position calculations. This setting is

advantageous when quality and reliability of your position are

of concern. Typically, PDOP values of six or greater are

considered “suspect” and therefore resulting positions are less

reliable.

• HDOP: This is the maximum allowable Horizontal Dilution

of Precision (PDOP), which is a measure of the geometrical

quality of the solution. While exceeded, the GPS data will not

be used for position calculations.

NOTE: DOPs can not be displayed in Binary Mode, however, the

DOP masks are still in effect.

GPS status voice prompt: When checked, changes in GPS quality

will result in an audible message indicating the change.

Advanced: When tapped, opens the Advanced GPS screen described

on the following page.