Owner's manual
NAV440UserManual
7430‐0131‐01Rev.F
Page15
Term Definition
MTBF MeanTimeBetweenFailure
PPS PrecisePositioningService
QTP QualificationTestPlan
SAASM SelectiveAvailability/Anti‐SpoofingModule
SDGPS SatelliteDifferentialGPS
Softerror Persistenterror,repeatedmanytimeswithinaperiodoftime
Softiron
Magnetismisnotretain
magneticfield
ed;magnetismonlyoccurswhilethematerialexposedtoa
VDC VoltageDirectCurrent
VG VerticalGyroscope
WAGE WideAreaGPSEnhancement