This unit involves the skills and knowledge required to fault find and repair radar apparatus and systems.

It includespreparing to find and repair faults, finding and repairing faults, and completing and reporting on fault-finding and repair activities.

The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 volt (V) alternating current (a.c.) or 120 V direct current (d.c.).

Competency development activities in this unit are subject to regulations directly related to licensing. Where a licence or permit to practice is not held, skills and knowledge described in this unit require a relevant contract of training, such as an Australian Apprenticeship.

Additional and/or other conditions may apply in some jurisdictions subject to regulations related to electrical work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.

Permits may also be required for some work environments, such as confined spaces, working aloft, near live electrical apparatus and site rehabilitation.

No other licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to find and repair faults

1.1

WHS/OHS requirements and workplace procedures for relevant work area are identified, obtained and applied

1.2

Risk control measures are applied in accordance with workplace procedures prior to commencing work

1.3

Risks/hazards are identified, assessed and reported to relevant person/s and control measures implemented

1.4

Extent of faults are determined from reports, other relevant documentation and discussions with relevant person/s

1.5

Relevant person/s is consulted to ensure the work is coordinated effectively with others

1.6

Tools, equipment and testing devices required to diagnose faults are obtained in accordance with workplace procedures and checked for correct operation and safety

2

Find and repair faults

2.1

Workplace risk control measures and procedures are applied

2.2

Need to test and measure live work is determined in accordance with WHS/OHS requirements and workplace procedures

2.3

Circuits/machines/plant are checked and isolated, as required, in accordance with WHS/OHS requirements and workplace procedures

2.4

Logical diagnostic methods are applied to diagnose radar apparatus and systems faults employing measurements and estimations of system operating parameters referenced to system operational requirements in accordance with workplace procedures and relevant industry standards

2.5

Suspected fault scenarios are tested as being the source of system problems in accordance with workplace procedures and job specifications

2.6

Source of the fault is identified and relevant person/s engaged to rectify the fault where it is outside the scope of capability in accordance with workplace procedures and relevant industry standards

2.7

Faults in the electronic components of the system are rectified to raise radar apparatus and system to its operation standard in accordance with workplace procedures and job specifications

2.8

System is tested to verify system operates in accordance with workplace procedures and job specifications

2.9

Decisions for dealing with unplanned situations are made in accordance with workplace procedures, relevant industry standard and discussions with relevant person/s

2.10

Methods for dealing with unplanned situations are selected on the basis of safety and specified work outcomes

2.11

Diagnosis and rectification activities are carried out efficiently without waste of materials, damage to apparatus, the surrounding environment or services applying sustainable energy practices

3

Complete and report fault-finding and repair activities

3.1

WHS/OHS work completion risk control measures and workplace procedures are followed

3.2

Worksite is made safe in accordance with workplace procedures

3.3

Rectification of faults is reported in accordance with workplace procedures

3.4

Relevant person/s is notified that the system faults have been rectified in accordance with workplace procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

applying logical diagnostic methods

using fault scenarios to test the source of system faults

identifying faults and competency needed to rectify them

rectifying faults in system electronics

verifying that the system operates correctly

documenting fault rectification

dealing with unplanned events

applying relevant risk identification, assessment, reporting and control requirements

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including the use of risk control measures

applying sustainable energy principles and practices

coordinating work with relevant person/s

determining live testing/measurement requirements

determining scope of work

identifying and accessing materials, tools, apparatus and testing devices

isolating circuits/machines/system.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

radar apparatus and system fault finding and repair, safe working practices and relevant standards, codes and regulations, including:

electronic communications, secondary radar and related systems:

secondary radar principles encompassing:

role of secondary radar

transponder operation

operating principles

signal processing

pulse generation, transmission and detection

mode generation, detection and response

display symbol generation

synchronisation with primary radar

advantages over primary radar with respect to clutter

signal/noise ratio; transmit power required for operation

interfaces to other systems providing information for transmission of mode data encompassing:

slaving/synchronisation to primary radar

clutter reduction/elimination

defruiting

degarbling

interfaces to other systems

range/ducting effects

advantages over primary radar

power supplies and uninterrupted power supplies (UPS)

international standards

national curriculum

hot standby, cold standby

application of secondary radar systems - traffic collision avoidance system (TCAS), selective identification system (SIF), air traffic control radar beacon system (ATCRBS), instrument landing system (ILS), tactical air navigation (TACAN), navigation systems (VOR, GPS and DME), radar altimeter, jamming, electronic warfare, second time round returns (STRR), and identification–friend or foe radar (IFF)

electronic communications, radar and sonar displays devices:

types and their applications – cathode-ray tube (CRT), plasma, liquid-crystal display (LCD), monochrome, colour and touch screen

sub-system components (i.e. functional blocks) and their operating parameters encompassing:

extra high tension (EHT) transformers

detectors

video distribution

time base generators

phase locked loops

microprocessors

memory devices

demodulators

focusing/deflection devices

delay lines

bleed resistors

high voltage (HV) generation

calibration testing and maintenance procedures:

typical fault finding, their symptoms and cause

electronic communications, radar fundamentals:

hazards and risk control measures

purpose and uses of radar

environmental conditions affecting radar

design factors which affect performance

propagation of electromagnetic waves

pulse forming circuits

typical radar transmitter encompassing:

limitations and applications of each type

typical radar receivers encompassing:

sub-system components (i.e. functional blocks) and their operating parameters

limitations and applications

radar antennae encompassing:

types, application and radiation patterns - parabolic, phased array, log periodic, and cos q

antenna gain

efficiency

length and height factors

microwave techniques, devices and applications encompassing:

oscillators

amplifiers

modulators and demodulators

mixers and detectors

types and characteristics of various radar systems

relevant industry standards, codes and regulations

relevant manufacturer specifications

relevant safe work method statements (SWMS)/job safety assessments or risk mitigation processes

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment

Assessment must occur in suitable workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in suitable simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

relevant and appropriate materials, tools, equipment and personal protective equipment (PPE) currently used in industry

resources that reflect current industry practices in relation to diagnosing and rectifying faults in radar apparatus and systems

applicable documentation, including workplace procedures, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Fault finding and repairing faults in radar apparatus and systems must include at least the following:

two system faults in electronic radar apparatus and systems

Electrotechnology

Electronics and Communications