GPS Flashcards
3 segments of a GNSS are
Space
Control
user
satellite constellation use 24 satellites how many orbital planes
6
how many operational spares are in a 24 satellite constellation
3
Psuedo random code transmit
Ephemris data
Almanac data
Satellite maintenance/health status
Atomic clock reference time and corrections
RAIM prediction must be performed
Before take off if you plan to use a GNSS approach
PDOP is preferable to be
LOW
GBAS WAAS DGPS all use
precisely surveyed ground station to improve GNSS accuracy
using nz Geodetic Survey 1949 ins a GPS receiver will
create errors up to several 100 meters
TACAN on ground station gives
a unique identification code that air traffic can process
VORTAC ground station will give
Distance and bearing information