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a) preventive maintenance;
b) corrective maintenance;
c) calibration; and
d) certification.
Standard of All maintenance, calibration and certification should be performed as per the
accomplishment: approved standards and procedures.
5.2.3 This chapter includes twelve parts:
5.1 Voice – Air – Ground;
5.2 Voice – Ground – Ground;
5.3 Data – Introduction to Networks;
5.4 Data – National Networks;
5.5 Data – International Networks;
5.6 Data – Global Networks;
5.7 Data – Protocols;
5.8 Transmission Path – Lines;
5.9 Transmission Path – Specific Links;
5.10 Recorders – Legal Recorders;
5.11 Safety Attitudes and Functional Safety; and
5.12 Health and Safety.
Advance first edition (unedited) version – 30 August 2009
61
Topic and Subtopic Objectives
The students should be able to:
Level Content
Chapter 5 - Communication Systems
5.1 Voice - Air Ground
1. Transmission/ 1) Perform typical measurements on 3 Frequency (single carrier, offset
Reception a transmitter carrier), modulation, channel
spacing, output power, SWR
2) Analyze and troubleshoot a
generic radio transmitter
4 Noise, intermodulation, harmonics
3) Design and interpret the block 4/5 Characteristics (modulation, single
diagram of a transmitter carrier, channel spacing)
functionalities
4) Perform typical measurements on 3 Frequency, modulation, channel
a receiver spacing, sensitivity, selectivity
5) Analyze and troubleshoot a
generic radio receiver
4/5 Noise, intermodulation, harmonics
6) Design and Interpret the block 4/5 Characteristics (modulation, single
diagram of a receiver carrier, channel spacing,
sensitivity, selectivity)
functionalities
7) Interpret remote monitoring and 5 PTT, squelch, station
control systems information information/control functions,
SW R, field strength, data of
equipment, line quality (S/N)
2. Radio Antenna 1) Explain and describe antenna 2 Impedance, polar diagram,
Systems parameters bandwidth, polarization types of
antennas (HF, VHF, UHF, LF)
2) Analyze the coverage of the radio 4 Impedance, polar diagram,
system polarization, types of antennas
(HF, VHF, UHF)
3) Calculate propagation according 3 Output power, geographic,
to various conditions meteorological, ionosphere
influences, day and night (HF,
VHF, UHF)
4) Appreciate criticality of the 3 Output power, geographic,
conditions meteorological, ionosphere
influences, day and night (HF,
VHF, UHF)
5) Calculate the values of the 3 Filters, combiners, RF relays,
elements of a simple generic
antenna system
multi-cavity system
6) Check the conformity of a system 3 ITU (HF, VHF, UHF)
to ITU Ref ICAO Annex 10
7) Check the conformity of a system 3 National regulations (HF, VHF,
to national regulations UHF)
8) Identify and measure cross 3 Cross modulation, measuring
modulation tools and methods
9) Detect and analyze disturbances 4/5 Spectrum analyzer, scanner,
noise, figure, BITE
3. Voice Switch 1) Describe and interpret switching 2/5 General architecture, digital,
functionalities with a block
diagram
analogue, multiplex types, PCM30
2) Explain the principles of non 2 Advantages, disadvantages,
blocking switches delays (digital)
Advance first edition (unedited) version – 30 August 2009
62
Topic and Subtopic Objectives
The students should be able to:
Level Content
3) Describe the signal processing all
along the chain
2 Signal tracing treatment, protocols
(a few), data flow
4. Controller Work
Position
1) Describe the most common
features of a controller working
position
2 Frequency selection, emergency,
station selection, coupling,
microphone (noise cancelling),
headset, loudspeaker, short time
recording, footswitch, PTT)
5. Radio Interfaces 1) List and describe the different
types of interfaces
1/2 Internal, external, phantom
keying, in band signal
6. Digital Voice
Communication
1) Explain the latest development
and projects in voice
communication
2 e.g. Digital radio, VDL mode 3
Ref.: ICAO Annex 10
5.2 Voice - Ground Ground
1. Interfaces 1) Describe the different types of
interface
2) Explain the advantages and
disadvantages of each type
3) Operate measuring equipment
2
2
3
Analogue (2, 4, 6 and 8 wires),
digital (ISDN; 64Kb, 2MB)
Analogue (2, 4, 6 and 8 wires),
digital (ISDN; 64Kb, 2MB)
　
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