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3) Describe how the DME 2 Single DME, multi DME
information is used on board navigation (rho rho), approach
procedures, manual mode,
automatic mode
10. Compliance with 1) Define the global performance 2 Coverage, accuracy, availability of
Standards criteria for DME the system, integrity, continuity
2) Perform typical measurements 3 Spectrum analysis, modulation,
output power, ID code
3) Calibrate 4 Flight inspection
4) Troubleshoot 5 Carrier frequency deviation, depth
of modulation, lack of power,
harmonics ratio
6.6 Ground Based Systems - ILS
1. Use of the System 1) Explain the operational use of ILS 2 Approach and landing
procedures, localizer and glide
path
Advance first edition (unedited) version – 30 August 2009
74
Topic Intermediate Objectives
The students should be able to:
Level Content
2) Theorize the principles of ILS 5 Azimuth and elevation by DDM
measurements, dipole arrays,
localizer and glide path beam
construction, 90-150 Hz
modulation, multiple course
indications, runway offset
arrangements,
3) Explain the advantages of ILS 2 Type of information, accuracy,
integrity
4) Explain the disadvantages of ILS 2 Only 40 channels, no segmented
paths of approach, beam
corruption due to multipath
5) Describe the current situation 2 Different operational category
depending on weather, equipment
and airport facilities
2. Ground Station 1) Draw and describe all 1/2 Location of the antennas and the
Architecture components of ILS shelters
2) Describe the special performance 2 Location of critical and sensitive
of the antenna arrray area
3) Draw and explain the block 1/2 Electronic cabinet, antennas,
diagram of LLZ, GS, OM, MM and power supply, remote controls
FFM and monitoring
3. Transmitter Sub 1) Analyze main signal parameters 4 Carrier frequency, output power,
System for LLZ, GS, OM and MM signals generated
2) Draw and explain the block 4 Synthesizer, modulator, power
diagram of the transmitter amplifier, control coupler, RFchange
over
4. Antenna Sub 1) Analyze and describe antenna 4/5 Types, position, polarisation,
System parameters patterns, coverage, distribution
circuits, radiated power,
monitoring antennas
5. Monitoring Sub 1) Describe and explain the 2 RF-Level, DDM, SDM on position
System monitoring parameters according
to ICAO Annex 10
and width
2) Describe and explain the 2 External, internal and integral
additional monitoring parameters monitoring
3) Describe and explain the far field
monitoring system
2 Position, width
4) Draw and explain the block 3 Near-field, integral network,
diagram internal network, monitor signal
processor
6. Implementation 1) Verify the impact of the 3 En route, approach and airport
requirements on the location and
the type of the ground station
requirements and procedures
2) Check the conformity of the
system to ITU
3 ITU regulation, ICAO Annex 10
3) Check the conformity to national
regulations
3 National regulations
Advance first edition (unedited) version – 30 August 2009
75
Topic Intermediate Objectives
The students should be able to:
Level Content
7. On board 1) Describe the on board equipment 2 Antennas, receiver, pilot interface
Equipment (cross pointer), FMS
8. Compliance with 1) Define the global performance 2 Coverage, accuracy, availability of
Standards criteria for ILS the system, integrity, continuity,
category and level
2) Perform the typical measurements 3 Output power, spectrum analysis,
modulation, ID code
3) Perform appropriate calibration 5 Flight inspection and ground
tasks and assess flight inspection
results
calibration results
4) Troubleshoot 5 Lack of power, carrier frequency
deviation, harmonic ratio, depth of
modulation
9. 2F – Systems 1) Describe and explain the capture
effect
2 Capture effect in receiver circuits
2) Describe and explain antenna 2 Types, position, polarisation,
parameters for 2F-LLZ patterns, coverage, distribution
circuits, radiated power
3) Describe and explain antenna
parameters for 2F-GS
2 Multipath
6.7 Ground Based Systems - MLS
1. Use of the System 1) Explain the operational use of
MLS
2 Approach and landing procedures
2) Theorize the principles of MLS 5 Azimuth, back azimuth and
elevation by Time Reference
Scanning Beam (TRSB)
3) Explain the advantages of MLS 2 Type of information, accuracy,
data link, small critical and
sensitive areas, number of
channels, complex approach
　
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