User's Manual

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• Minimum SNR: Unless you are very familiar with this

parameter, it is recommended to keep the default value.

SNR stands for Signal-to-Noise Ratio. Ensure your SNR

mask is not set too low (less than 20). GPS signals with

lower SNRs will be very noisy and contribute to accu-

racy degradation.

•

Elevation Mask: Angle that specifies that any satellite must

be at least a specified number of degrees above the hori-

zon before the signals from the satellite are to be used.

Ensure that the elevation mask set in your receiver is

high enough (15 degrees or more) to avoid using satel-

lites near the horizon as they are often noisier than satel-

lites higher overhead.

•

Antenna Height: Enter the height of the MobileMapper CE

unit from the ground when it is being used in the field so

that the receiver can accurately project its computed

positions to the ground.

Tap

Apply after making your changes. To return to the default

settings, tap

Reset to Default. Then tap OK to close the window.

By default, the GPS is configured to track satellites in nor-

mal conditions of reception.

MM CE GS Guide.book Page 12 Monday, June 20, 2005 11:04 AM