Unit 3 Flashcards
What is the principle of VOR
Phase Comparison
What is point-to-point navigation coming from one ground station to another. This also determines the A/C’s position by magnetic bearing to two or more (triangulation) ground stations and plotting these bearings on a map
VHF Omni Diretional range (VOR)
What two signals does VOR use
30 Hz Reference and 30 Hz Variable
Which 30 Hz signal is Omni directional and uses frequency modulation
Reference
What 30 Hz signal is sweeping and uses amplitude modulation
Variable
What shape is created by _______ on the Cardiod Power Pattern?
Heart shape, reflector
What groundstations is enroute navigation
High Altitude and Low Altitude
What groundstation is local navigation
Terminal
Frequency range of High Altitude and Low Altitude (Enroute)
112-117.95 MHz
Frequency range of Terminal (LOC)
108-111.85 MHz (Even 1/10)
How many possible frequencies for Enroute and how many for LOC. How many it total?
Enroute - 120
Local - 40
Total Frequency/channels - 160
How many miles apart if different frequency
80 miles
How many miles apart if same frequency
500 miles
Power requirement for VOR
28 VDC
26 VAC 400 Hz compass system
Frequency range of VOR
108-117.95 MHz
Even 1/10
What component has the VOR Localizer, Glide slope, and Marker Beacon and conducts Phase Comparison
Receiver
How many receivers in the Receiver of the VOR
3 in one
How is the antenna in the VOR placed
Flush Mounted
Where does the bearing slew to in the VOR Self-test
315°
This is a rotating compass card and displays magnetic heading received from the aircraft compass system and magnetic bearing
Radio magnetic indicator (RMI)
This displays bearing, distance, and heading
Bearing Distance Heading Indicator (BDHI)
This displays magnetic heading, course deviation indicator, has one bearing pointer, and to/from flags
Horizontal Situation Indicator (HSI)
This has course deviation and the Bank Steering Bar, with Fly-to/steer-to.
Altitude Direction Indicator (ADI)
What switch is used for switching from VOR to ILS
Flight Director Mode Switch
This sends signal to the devices for display
Navigation instrument switching system (NISS)
What is used as a ground station to duplicate aircrew write ups for VOR and ILS
IFR 4000
What is a multi system tester that can be used to test VOR and ILS and will be used by maintainers to simulate conditions that the A/C encounters
IFR 4000
What is the frequency range of the IFR 4000
108-117.95 MHz
What is the power requirement of the IFR 4000
11-32 VDC
100-250 VAC when plugged in
