Nav Aids Final Flashcards
(28 cards)
Where is the region called the tropics?
2326’N 2326’s
Where is the arctic circle?
6633’N 6633’S
What does GNSS stand for?
Global Navigation Satellite system
What 4 countries have GNSS?
Russia, China, Europe, United States
What does GPS stand for?
Global positioning System
List the three segments of GPS
Space segment, control segment, user segment
Which segment of GPS is referred to as the brain?
Control Segment
Which segment of GPS is comprised of the constellation of satellites?
Space Segment
Which segment of GPS is the one in your airplane?
User Segment
What do we get with three sats?
Position
What do we get with four sats?
Position and Altitude (time)
What do we get with five sats?
RAIM, FD
What do we get with six sats?
FDE
What does the SBAS called that we use in north america?
WAAS
What does WAAS Stand for?
Wide Area Augmentation System
In an essay, describe how waas works. Include major components of how they work
WAAS includes 38 Wide Area Reference Stations(WRS), 3 Wide Area Master Stations(WMS), 6 GEO uplink Subsystems, and 3 GEO satellites (communication satellites). Step 1: WRS monitors GPS signals to determine position errors within a specific satellite; Step 2: WMS develops correction message; step 3: GEO uplink system transmits messages to navigation payloads on the communication satellites; Step 4:The GEO communication satellites BROADCAST the correction messages to GPS/WAAS receivers; Step 5: GPS/WAAS receivers can achieve an accuracy of a few meters across the NAS
What does ADS-B stand for?
Automatic Dependent Surveillance-Broadcast
What are 2 frequencies that ads-b operates on?
978 and 1090
With regard to ads-b out, what freq. is for GA aircraft in the US below 18,000?
978 HRz
With regard to ads-b out, what freq. is for jet aircraft operating above 18,000?
1090 HRz
What is TIS-B?
Traffic Information Service- Broadcast
What is FIS-B?
Flight Information system- Broadcast
what is the diff. between ADS-B in and ADS-B out? Also which one is mandated?
ADS-B out sends info to other planes and atc about the location while ADS-B in receives that info
What is ICAO? How does it help the aviation industry?
International Civil Aviation Organization, Conformation of global Norms that allow flights around the globe to operate safely
