Magellan MobileMapper - GPS Software Spécifications télécharger pdf (Page 63)

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Optimizing Accuracy

General Guidelines

There are five basic rules for recording MobileMapper CE rover

data so as to achieve the optimal accuracy:

1. Allow the receiver to have full “view” of the sky the entire

time a job is open, not just when logging data to a feature.

There are three things you can do to improve signal recep-

tion:

• While you do not need a survey-grade external antenna

for sub-meter accuracy, using one will yield better

accuracy in all environments.

• If you are not using an external antenna, keep the

MobileMapper CE receiver at a 45-degree angle the

entire time a job is open (or as long as possible).

• If you are not using an external antenna, keep the

MobileMapper CE receiver as high as possible the

entire time a job is open (or as long as possible).

2. When you record a point feature, remain stationary for 10

seconds both before opening the feature and after closing

the feature.

3. Average all point features for at least 30 seconds.

4. Make sure you are using the latest firmware (both the

Operating System firmware and GPS firmware) for the

MobileMapper CE receiver and the latest version of

MobileMapper Office).

5. Adjust the SNR, PDOP and Elevation masks on the

receiver to reflect your environment.

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Magellan MobileMapper - GPS Software Spécifications Page 63