UEEEC0023 — Diagnose and rectify faults in digital transmission circuits and systems
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What an assessment for UEEEC0023 must cover
94 assessable components: 3 elements (19 performance criteria), 9 performance evidence and 66 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.
Elements & performance criteria
1 Prepare to diagnose and rectify digital transmission circuits and system faults
- 1.1Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are obtained and applied
- 1.2WHS/OHS risk control measures and workplace procedures are followed in preparation for digital transmission circuits and system work
- 1.3Safety hazards which have not previously been identified are risk assessed, documented and risk control measures devised and implemented in consultation with appropriate person/s
- 1.4Extent of faults is determined from reports, documentation and discussions with appropriate person/s
- 1.5Appropriate person/s is consulted to ensure digital transmission circuits and system work is coordinated effectively with others involved on the worksite
- 1.6Tools, equipment and testing devices needed to diagnose faults are obtained in accordance with workplace procedures and checked for correct operation and safety
2 Diagnose and rectify digital transmission circuits and system faults
- 2.1WHS/OHS risk control measures and workplace procedures for carrying out digital transmission circuits and system work are followed
- 2.2Need to test and measure live work is determined in accordance with WHS/OHS requirements and, as required, conducted in accordance with workplace safety procedures
- 2.3Circuits/machines/plant are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
- 2.4Logical diagnostic methods are applied to diagnose digital transmission apparatus faults using measurements of circuit operating parameters in accordance with apparatus operating specifications
- 2.5Suspected fault scenarios are tested as being the source of digital transmission circuit system problem
- 2.6Faults in the electronic components of the digital transmission apparatus are rectified to circuit and system operation standard
- 2.7Circuits are inspected and tested to verify that digital transmission circuit apparatus operates as intended and to specified requirements
- 2.8Unplanned situations are responded to in accordance with workplace procedures, discussions with appropriate person/s and consistent with job specifications and requirements in a manner that minimises risk to personnel and equipment
- 2.9Diagnosis and rectification activities are carried out efficiently without waste of materials or damage to apparatus, the surrounding environment or services using sustainable energy practices
3 Complete and report fault diagnosis and rectification activities
- 3.1WHS/OHS work completion risk control measures and workplace procedures are followed
- 3.2Worksite is made safe in accordance with workplace safety procedures
- 3.3Rectification of digital transmission circuit and system faults is documented in accordance with workplace procedures
- 3.4Appropriate person/s is notified in accordance with workplace procedures that apparatus faults have been rectified
Performance evidence
- applying logical diagnostic methods
- using fault scenarios to test the source of circuit faults
- identifying the cause faults using logical diagnostic methods
- rectifying faults effectively
- verifying that the apparatus operates correctly
- documenting fault rectification
- dealing with unplanned events
- applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, workplace procedures and practices, including using risk control measures
- applying sustainable energy principles and practices
Knowledge evidence
- digital television transmission faults, advanced digital television principles, digital television transmission towers and equipment, applying safe working practices and relevant standards, codes and regulations, including:
- audio component encompassing:
- audio encoding
- audio masking
- audio sub-band encoding
- Dolby AC-3
- MPEG-2 system layer encompassing:
- PES packet construction
- time stamps
- programme clock reference (PCR)
- transport packet header
- programme specific information (PSI)
- channel encoding:
- forward error correction (FEC)
- bit error rate (BER)
- puncturing
- interleaving
- modulation:
- phase shift keying (PSK)
- quadrature amplitude modulation (QAM)
- orthogonal frequency division multiplexing (OFDM)
- coded orthogonal frequency division multiplexing (COFDM)
- hierarchical modulation:
- terrestrial channel encoder
- satellite channel encoder
- carrier to noise ratio (C/N)
- single frequency networks:
- guard interval
- mega-frames
- the requirements of digital television terrestrial broadcast (DTTB) program input and monitoring equipment encompassing:
- basic system arrangement: a central router connected to a number of control rooms
- terminologies: vertical, multi-level; tie-line routing and cross point
- typical signal types processed by a router
- the purpose of redundant central processing units (CPUs) and power supply units
- common control protocols used in routers
- typical analogue audio and video output voltage levels present at the router
- typical specifications for digital data signals present at the router
- function of various test equipment used in DTTB measurements
- the operating characteristics of a DTTB transmitter encompassing:
- typical DTTB digital transmission system
- safety precautions required when working with high power radio frequency (RF) transmitters
- operating characteristics of a typical MPEG encoder
- operation of a COFDM modulator
- arrangement of sub-system components in a DTTB transmitter
- purpose of an up converter in a DTTB transmitter
- typical characteristics of a DTTB power amplifier
- advantages and disadvantages of air and liquid cooling systems used in transmitters
- typical DTTB transmitter measurements techniques
- the performance requirements of the DTTB combiner and antenna systems encompassing:
- minimum channel separation required between digital and analogue television channels
- typical specifications of an antenna combiner system
- the need for combiner systems in DTTB systems
- typical system faults in combiners and antenna system
- the requirements of remote monitoring and measurement equipment encompassing:
- purpose of control panel indicators and controls
- process by which the system manages a critical failure: power supplies and CPUs
- different system alarm signals
- periodic equipment self-tests and diagnostic routines on DTTB systems
- DTTB systems fault diagnostic and rectification techniques
- function of the basic components of a DTTB system
- typical units of a DTTB telemetry system
- relevant job safety assessments or risk mitigation processes
- relevant manufacturer specifications
- relevant WHS/OHS legislated requirements
- relevant workplace documentation
- relevant workplace policies and procedures
Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.
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Questions about assessing UEEEC0023
What does an assessment tool for UEEEC0023 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEEEC0023 needs to address all 94 unit components: 3 elements with 19 performance criteria, 9 performance evidence requirements, 66 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.
How does Auditori generate an assessment tool for UEEEC0023?
Auditori pulls the current release of UEEEC0023 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.
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Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of UEEEC0023, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
Related units
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- UEEEC0003 — Assemble and set up basic security systems
- UEEEC0004 — Assemble and set up fixed video/audio components and systems in buildings and premises
- UEEEC0005 — Assess electronic apparatus compliance
- UEEEC0006 — Carry out repairs of predictable faults in video and audio replay/recording apparatus
- UEEEC0007 — Commission electronics and communications systems
- UEEEC0008 — Commission large fire protection systems
- UEEEC0009 — Commission satellite and microwave communication systems
- UEEEC0010 — Design and develop advanced digital systems
- UEEEC0011 — Design and develop electronics/computer systems projects
- UEEEC0012 — Design custom electronic equipment installations
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