This describes the essential skills and knowledge and their level required for this unit

Evidence shall show that knowledge has been acquired of safe working practices and diagnosing rectifying faults and commissioning air navigation systems

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies

KSEHA Electronic communications air navigation systems

Evidence shall show an understanding of electronic communications air navigation systems to an extent indicated by the following aspects

T Aviation navigation services and principles encompassing

role of navigation aids in providing Air Traffic Control Services

functions provided by navigational aids

Rho Theta concept in context of navigational aids used within aviation

relevant ICAO Annex specifications

Monitoring equipment status and pilot

T Principle of operation of the NDB encompassing

simple block diagram of an NDB

frequency band of operation

parameters ICAO requires to be monitored

typical radiation hazard issues

simple block diagram of the aircraft Automatic Direction Finding ADF display

NDB is used by Pilots and ATC

T Principle of operation of the CVORDVOR encompassing

simple block diagram of a CVOR labelling each part

basic principles of variable and reference information

RF phasing and far field space modulation

frequency band of operation

features of a typical aircraft display

possible errors and their cause in a CVOR

typical CVOR and DVOR facilities

main differences of operation between CVOR and DVOR

T Principle of operation of the DME encompassing

simple block diagram of a DME

typical timing diagram from interrogation to reply

features of aircraft display system

frequency band of operation

modes of operation

T Principle of operation of the ILS

frequency band of operation

simple diagram of the localiser antenna pattern marking on it the zero DDM line the represented colour and modulating frequency of each lobe and the clearance signal

simple sketch showing the glide path and the location of the marker beacons listing their identification frequency and duration

simple block diagram to show the generation of the Carrier and Sidebands and Sideband only signals

ILS antenna arrays and farfield radiation patterns

Far field phasing and space modulation

terms DDM and SDM

performance requirements for CAT I CAT II and CAT III ILS

T Principle of Global Navigation Satellite System GNSS

basic principles of the Wide Area Differential Global Positioning System WADGPS

basic principles of the Local Area Differential Global Positioning System LADGPS

T NDB Technology and Maintenance

key functional modules of a contemporary NDB transmitter

function of the aerial coupling unit

radiation hazard issues site restrictions and safety considerations in context of an NDB facility

signals in and out of the main components

key features and theory of operation of an NDB antenna Field Pattern Capacity hat and Ground Plane

hardware configurations of current models of NDB used in the National Airways System of Australia

indicators on NDB equipment that may be used to determine status and locate a fault

methods for conducting routine performance measurements on NDB equipment

process for removing an NDB from service

correct test equipment based on measurement tolerance and parameter being measured

correct use of selected test equipment

process for returning the aid to service

locate and identify appropriate NDB documentation AEIs

Flight Check of an NDB is mandated

T DME Technology and Maintenance

key functional modules of a contemporary DME beacon

modes of operation and relevant channel spacing for the Interrogation and Reply of the Beacon

purpose of the squitter

typical DME Block Diagram the signal flow through the Beacon from incoming interrogation to outgoing Reply

function of each module in a contemporary DME

term Gaussian Shaped Pulse and why it is used

operation and purpose of the identification signal including test transmissions

define Dead Time

monitored parameters of a DME

controls and indicators

correct ONOFF sequence

process for removing a DME from service

autorecycle operation

typical function of the CTU for testing

typical Alarm Registers

measurement of parameters such as Beacon Delay Pulse Spacing Pulse Width Ident Beacon Sensitivity Selectivity Reply Rate Dead Time Frequency Monitor limits Antenna VSWR using the correct test equipment

correct use of test equipment

correlate the measurements to the Standard Operating Conditions SOC

maintenance actions that may be performed without the requirements of a flight inspection

Flight Calibration Check of an DME is mandated

process for returning the aid to service

locate and identify appropriate DME documentation AEIs

T CVOR Technology and Maintenance

principles of operation of a VOR and how the component signals are generated in a contemporary CVOR beacon

basic operation and functionality of the Transmitter Goniometer Modulation Eliminator Monitor Antenna

typical monitored parameters for a CVOR

purpose of monitor bypass

correct use of test equipment and interpretation of results SOCs

measurement of performance parameters using the correct test equipment

correct use of test equipment

correlate the measurements to the Standard Operating Conditions SOC

maintenance actions that may be performed without the requirements of a flight inspection

maintenance actions that do require a flight inspection

importance of beacon accuracy

T DVOR Technology and Maintenance

principles of operation of a DVOR and how the component signals are generated in a contemporary DVOR beacon

basic operation and functionality of the modules used in the following sub systems Carrier generation and modulation Timing sequence generation Sideband amplifier and modulator Sideband antenna commutation Monitor and Controller

front panel indications under normal and fault conditions

operation and functionality of the following circuits Carrier amplifier and modulation CGD CPA CDC CMP Timing signals generation TSD Reference phase generator RPG Antenna switching ASD ADS Sideband generator SGN SMA SCU Control unit CTU Monitor unit MRF MSC MFI MBD MSD

typical monitored parameters for a DVOR

correct use of test equipment and interpretation of results SOCs

measurement of performance parameters using the correct test equipment

correct use of test equipment

correlate the measurements to the Standard Operating Conditions SOC

maintenance actions that may be performed without the requirements of a flight inspection

maintenance actions that do require a flight inspection

importance of beacon accuracy

T ILS Technology and Maintenance

ILS functional blocks and typical cabinet modules of a Localiser and Glide Path NM series

main functional elements of a contemporary marker beacon

location and function of modules and system interconnections Transmitter Changeover Monitor Transmitter controller Remote control RMSRMM Power

block diagram illustrate at specified points the signal flow out from the distribution side andor return via the recombination side of a Localiser andor Glide Path

operation of a specified Localiser antenna array

operation of an MArray or other specified Glide Path antenna array

the features and function of the RMM andor RMS

performance requirements for CAT I CAT II and CAT III ILS and how these are provisioned in the system hardware and monitoring

function of equipment indicators and controls including the correct operation of controls to achieve a nominated function

typical monitored parameters for a Localiser Glide Path and Marker beacon

correct use of test equipment BITE and external and interpretation of results SOCs

measurement of performance parameters using the correct test equipment

correct use of test equipment

correlate the measurements to the Standard Operating Conditions SOC

maintenance actions that may be performed without the requirements of a flight inspection

maintenance actions that do require a flight inspection

typical tests and maintenance actions required during a flight calibration of an ILS

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for this Training Package

The Evidence Guide forms an integral part of this unit It must be used in conjunction with all parts of the unit and performed in accordance with the Assessment Guidelines of this Training Package

Overview of Assessment

Longitudinal competency development approaches to assessment such as Profiling require data to be reliably gathered in a form that can be consistently interpreted over time This approach is best utilised in Apprenticeship programs and reduces assessment intervention It is the Industrypreferred model for apprenticeships However where summative or final assessment is used it must include the application of the competency in the normal work environment or at a minimum the application of the competency in a realistically simulated work environment It is recognised that in some circumstances assessment in part or full can occur outside the workplace However it must be in accord with industry and regulatory policy

Methods chosen for a particular assessment will be influenced by various factors These include the extent of the assessment the most effective locations for the assessment activities to take place access to physical resources additional safety measures that may be required and the critical nature of the competencies being assessed

The critical safety nature of working with electricity electrical equipment gas or any other hazardous substancematerial carries risk in deeming a person competent Sources of evidence need to be rich in nature to minimise error in judgment

Activities associated with normal everyday work influence decisions about howhow much the data gathered will contribute to its richness Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package

Critical aspects of evidence required to demonstrate competency in this unit

Before the critical aspects of evidence are considered all prerequisites shall be met

Evidence for competence in this unit shall be considered holistically Each Element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the Assessment Guidelines UEE Evidence shall also comprise

A representative body of work performance demonstrated within the timeframes typically expected of the discipline work function and industrial environment In particular this shall incorporate evidence that shows a candidate is able to

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement

Apply sustainable energy principles and practices as specified in the performance criteria and range statement

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements

Demonstrate an appropriate level of skills enabling employment

Conduct work observing the relevant Anti Discrimination legislation regulations polices and workplace procedures

Demonstrated consistent performance across a representative range of contexts from the prescribed items below

Diagnose and rectify faults in air navigation systems as described in and including

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 by drawing on essential knowledge and skills to provide appropriate solutions incorporated in a holistic assessment with the above listed items

Note

Successful completion of relevant vendor training may be used to contribute to evidence on which competency is deemed In these cases the alignment of outcomes of vendor training with performance criteria and critical aspects of evidence shall be clearly identified

Context of and specific resources for assessment

This unit should be assessed as it relates to normal work practice using procedures information and resources typical of a workplace This should include

OHS policy and work procedures and instructions

Suitable work environment facilities equipment and materials to undertake actual work as prescribed by this unit

These should be part of the formal learningassessment environment

Note

Where simulation is considered a suitable strategy for assessment conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy

The resources used for assessment should reflect current industry practices in relation to diagnosing and rectifying faults in air navigation systems

Method of assessment

This unit shall be assessed by methods given in Volume Part Assessment Guidelines

Note

Competent performance with inherent safe working practices is expected in the industry to which this unit applies This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learningassessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit

Concurrent assessment and relationship with other units

There are no concurrent assessment recommendations for this unit

The critical aspects of occupational health and safety covered in unit UEENEEEA and other discipline specific occupational health and safety units shall be incorporated in relation to this unit

The critical aspects of occupational health and safety covered in unit UEENEEE101A and other discipline specific occupational health and safety units shall be incorporated in relation to this unit.