whats the difference?

Question 1

RNAV

Answer 1

Area Navigation
- is a system that enables navigation between any two points without the need to fly over ground based points

Question 2

GNSS

Answer 2

Global Navigation Satellite System
- BROAD TERM for satellite-based RNAV systems
- GPS is under GNSS operated by the USA, GLONASS:Russia, GALIEO:EU

Question 3

PBN

Answer 3

Preformace Based Navigation

• is a general basis for navigation equipment standards, in terms of accuracy, integrity, continuity, availability & functionality for a specific operation context (e.g. final approach, enroute, missed approach)
• allows for more more specific routes

Question 4

RNP

Answer 4

Required Navigation Performance

• RNP is a STATEMENT OF PBN (Performance Based Navigation)
• RNP is also defined as RNAV + navigation monitoring & alerting functionality
  **RAIM or built-in monitoring WAAS provided this capability