Geodetic Datum; Raim - NSR Marine NGR-3000 User Manual

5.1.3 Geodetic datum

Totally there are three systems to be selected: WGS84, PZ-90 and CGCS2000.

5.1.4 RAIM

5.1.4.1 RAIM
RAIM (Receiver Autonomous Integrity Monitoring) can be set to ON or OFF.
When set to ON, RAIM will display SAFE, UNSAFE or CAUTION in below conditions:
⚫
Conditions for the "safe" state
The result of integrity calculation by means of RAIM will be stated as "safe", if the
integrity calculation can be performed with a confidence level above 95 % for the
selected accuracy level and RAIM calculates the probable position error to be within the
selected accuracy level.
This generally requires at least 5 "healthy" satellites available and in a robust geometry,
i.e. the worst 4 satellite geometry is still suitable for navigation.
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NGR-3000 UM.E 20230221-08
NGR-3000 USER MANUAL