GNSS Glossary

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NI :

Non Integrity

NIHID :

Non-Integrity Hazardous Invalid Data

NCRB :

Non-conformance Review Board

NCR :

Non-Conformance Report

NCM :

Network Control Management

NLES :

Navigation Land Earth Station

NLES-1B :

Backup to NLES-R

NLESRD :

NLES Requirements Document

NM :

Nautical Mile

NLES-R :

NLES – Riesting Germany

NLES-A :

NLES – Aussagel France

NLES-2B :

Backup to NLES-A

NCC :

Network Control Centre

NC :

Non Compliant

NAV :

NAVigation sub-system

NATS :

National Air Traffic Services (UK)

NAS :

National Airspace System or National Air Space

NA or N/A :

Note Applicable

NMC :

Network Management Center

NMF :

Network Management Facility

NPA :

Non Precision Approach

NPL :

National Physical Laboratory

NOTAM :

Notice To Airmen

NOCC :

Network Operation Control Centre

NOC :

Network Operations Centre

NSA :

Navigation Service Availability

NSE :

Navigation System Error

NTWRD :

Network Requirements Document

NTW :

Network

NSV :

Number of Satellite Vehicles

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