Satellites - WAAS Controls

This page is used both to show and to control which WAAS \ EGNOS satellites are enabled or are set to ignore bad health status. An overall radio button is available to turn all WAAS \ EGNOS tracking on or off. Additionally, each WAAS \ EGNOS satellite has two checkboxes associated with it. These checkboxes control how the receiver treats each satellite.

WAAS Tracking:

This radio button is used to globally turn off the use of all WAAS \ EGNOS satellites. The On radio button must be selected for WAAS \ EGNOS satellites to be used.

Enable Checkbox:

If the Enable checkbox is checked, the NetRS will use the satellite in positioning as long as the satellite is reported to be healthy, or as long as the Ignore Health checkbox is checked.

If the Enable checkbox is not checked, the NetRS will not use the satellite in positioning regardless of the reported health or the state of the Ignore Health checkbox.

It is not recommended that WAAS \ EGNOS satellites be explicitly disabled.

Ignore Health Checkbox:

If the Ignore Health checkbox is checked, the NetRS will ignore any reports of bad health for that satellite and will continue to use that satellite in positioning as long as the Enable checkbox is also checked.

If the Ignore Health checkbox is not checked, the NetRS will use the satellite health information to determine if that satellite should be used in positioning. No action is taken if the Enable checkbox is not checked.

It is not recommended that bad satellite data be intentionally included by ignoring health information. The use of measurements from satellites that are truly unhealthy can degrade the performance of positioning.

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