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2 NM en route;
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1 NM terminal; and
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0.3 NM final approach.
The current RAIM accuracy limit and measured accuracy limit are displayed on the MFD LRN STATUS page 2/2. The measured accuracy limit indicates the maximum estimated error based on measurement inconsistency. Unless an error is detected by RAIM, this value is always less than the RAIM accuracy limit.
When an error is detected, it is annunciated on the MFD LRN STATUS page 2/2. If the detected error cannot be predicted to be less than the required integrity threshold, GPS is removed from the navigation solution.
If no error is detected by RAIM, the probable GPS error is shown. This is a statistical number based on normal satellite error characteristics.
NAVIGATION SYSTEMS Description Vol. 2 17.10.75
Oct 05/06
MFD LRN STATUS Figure 17.10.70
In the terminal environment (30NM from airport reference point), RAIM accuracy is indicated by the white TERM message above the NAV SOURCE display of the PFD.
On final approach, RAIM accuracy is indicated by the white GPS APPR message above the NAV SOURCE display of the PFD.
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If RAIM accuracy does not reach final approach tolerances, the yellow NO APPR message is displayed above the NAV SOURCE display of the PFD.
PFD RAIM Indications
Figure 17.10.71
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For a complete listing of GPS and RAIM messages, see the “Collins FMS-6000 for the Challenger 605” Pilot’s Guide.
FMS CDU RAIM Message
Figure 17.10.72
Controls and Indicators
FMS-GPS Control Page
The GPS control page allows the pilot to monitor the FMS aircraft position in relation to the GPS. The position differential (POS DIFF) is shown in direction and magnitude from the FMS position.
To alternately enable or disable use of a specific GPS sensor, push the left side line-select key of that sensor. Enabled sensors show in large green font, and disabled sensors show in small white font.
The DEST and ETA entries are those of the active flight plan. The flight crew can manually enter changes to see if RAIM is available for other destinations and/or arrival times.
Satellite Deselect
Individual satellites can be deselected from use by entering the identifier for the satellite in the FMS. This function would be used if the satellite is NOTAMed under test. When deselected, the FMS ignores the data from the satellite. Deselected satellites are not included in the predicted RAIM computations.
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FMS GPS Control Page
Figure 17.10.73
FLIGHT MANAGEMENT SYSTEM (FMS)
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本文链接地址：庞巴迪挑战者605公务机机组操作手册 CL605-CHAPTER 17 -导航系统 NAVIGATION SYSTEMS(34)
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