NTISthis.com

Evidence Guide: UEENEEH146A - Solve fundamental electronic communications system problems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UEENEEH146A - Solve fundamental electronic communications system problems

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare to solve fundamental problems in electronic communications systems.

  1. OHS procedures for a given work area are identified, obtained and understood.
  2. Established OHS risk control measures and procedures are followed in preparation for the work.
  3. Safety hazards, which have not previously been identified, are noted and established risk control measures are implemented.
  4. The nature of the problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.
  5. Advice is sought from the work supervisor to ensure the work is co-ordinated effectively with others.
  6. Tools, testing devices, and materials needed to carry out the work are obtained and checked for correct operation and safety.
OHS procedures for a given work area are identified, obtained and understood.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Established OHS risk control measures and procedures are followed in preparation for the work.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Safety hazards, which have not previously been identified, are noted and established risk control measures are implemented.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

The nature of the problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Advice is sought from the work supervisor to ensure the work is co-ordinated effectively with others.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Tools, testing devices, and materials needed to carry out the work are obtained and checked for correct operation and safety.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Solve fundamental problems in electronic communications systems.

  1. OHS risk control measures and procedures for carrying out the work are followed.
  2. The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures.
  3. Circuits/machines/plant are checked as being isolated where necessary in strict accordance OHS requirements and procedures.
  4. Knowledge of fundamental characteristics communication system components and transmission media is applied to solving system problems.
  5. Logical approaches are used to solve system problems from measure and calculated values as they apply to communication systems.
  6. Unexpected situations are dealt with safely and with the approval of an authorised person.
  7. Problems are solved without unnecessary damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices.
OHS risk control measures and procedures for carrying out the work are followed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Circuits/machines/plant are checked as being isolated where necessary in strict accordance OHS requirements and procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Knowledge of fundamental characteristics communication system components and transmission media is applied to solving system problems.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Logical approaches are used to solve system problems from measure and calculated values as they apply to communication systems.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Unexpected situations are dealt with safely and with the approval of an authorised person.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Problems are solved without unnecessary damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Complete work and document problem solving activities.

  1. OHS risk control work completion measures and procedures are followed.
  2. Work site is cleaned and made safe in accordance with established procedures.
  3. Reports are written outlining system problem and justifying solutions used.
OHS risk control work completion measures and procedures are followed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Work site is cleaned and made safe in accordance with established procedures.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Reports are written outlining system problem and justifying solutions used.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

9) 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

9.1)

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 Industry-preferred 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 substance/material 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 how/how 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

9.2)

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 – UEE11’. 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:

Solve fundamental problems in electronic communications systems as described in 8) and including:

A

Applying knowledge of communication system and transmission media characteristics.

B

Using logical and methodical approaches to solving system problems.

C

Solving system problems.

D

Providing written justification for solutions used.

E

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.

Context of and specific resources for assessment

9.3)

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 learning/assessment 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 solving fundamental problems in electronic communications systems.

Method of assessment

9.4)

This unit shall be assessed by methods given in Volume 1, Part 3 ‘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 learning/assessment 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

9.5)

There are no concurrent assessment recommendations for 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.

Required Skills and Knowledge

8) 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 solving fundamental problems in electronic communications systems.

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

KS01-EH146A Fundamental electronic communications systems

Evidence shall show an understanding of fundamental electronic communications systems, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects:

T1. Requirements of a Radio Communications System

Safety

Communications system requirements

Notion of decibels including dB, dBm, dBmV, dBuV

Antenna Types

Modulation

Baseband signals

Bandwidth

Wavelength and frequency

Radio spectrum

T2. Optical Communications Principles

Safety

Optical fibre fundamentals

Optical fibre parameters

Typical optical link

Bit rates

T3. Wave Propagation

Half wave dipole

Radiation patterns

Polarisation

Propagation modes

T4. Modulation Concepts and Amplitude Modulation (AM)

Modulation principles

Sidebands

Types of modulation (Analog and digital modulation)

Circuit verification of the modulation process

AM envelope

Diodes as modulators/demodulators

Modulation index, Percentage, Spectral content, Over modulation

Calculating sideband frequency and power of AM signals

Bandwidth requirements for radio services

Bandwidth measurement

The diode demodulator circuit.

T5. Introduction to Frequency and Phase Modulation

Typical deviations

Carson’s rule

Sideband distribution

Carrier and sideband power

Phase modulation

Pre-emphasis/ De-emphasis

Limiter stage

FM detectors

T6. The superheterodyne Receiver

The TRF receiver

AM superheterodyne receiver block diagram

RF and IF amplifier

Image and intermediate frequencies

FM superheterodyne receiver

Sensitivity, selectivity and image rejection

Measurements of receiver parameters

Binary Digital Modulation/Demodulation

T7. Supplementary Receiver circuitry

AFC and AGC systems

Range Statement

10) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance.

This unit shall be demonstrated by reporting on fundamental issues related to an electronic communications system.

Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1.