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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Radio Navigation > For a present-day simple local DGPS scheme, considering the spatial correlation of common propagation errors and otherwise similar conditions, which statement is generally correct?

104 - ATPL Question Bank in English - For a present-day simple local DGPS scheme, considering the spatial correlation of common propagation errors and otherwise similar conditions, which statement is generally correct?

Question 104 - Radio Navigation - ATPL - Airline Transport Pilot Licence

Its main improvement is correction of intentionally introduced errors from currently active GPS Selective Availability.

The increase in accuracy of position fixes is independent of the receiver position in relation to a D-GPS ground station

Only D-GPS allows position fixes accurate enough for 'Non Precision Approaches'

Smaller separation from the reference station normally improves atmospheric-error correlation and can improve position accuracy.

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