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.