The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the ability to:

assemble, install, align and test a satellite antenna according to plans and specifications, and site specific safety requirements

conduct performance tests according to manufacturer's specifications and enterprise guidelines.

Context of and specific resources for assessment

Assessment must ensure:

suitable site for satellite antenna installation

range of antennas and cables currently used in industry

range of general and test equipment required for satellite antenna installation and testing.

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:

direct observation of the candidate installing a satellite receiving antenna given the satellite details and the satellite antenna coordinates

direct observation of the candidate preparing, securing and connecting a cable to the satellite antenna

direct observation of appropriate signal performance measurement and adjustment of azimuth, elevation and polarisation alignment

oral or written questioning to assess required knowledge .

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, for example:

ICTRFN2164A Install a terrestrial antenna

ICTDRE3156A Install digital reception equipment.

Aboriginal people and other people from a non-English speaking background may have second language issues.

Access must be provided to appropriate learning and assessment support when required.

Assessment processes and techniques must be culturally appropriate, and appropriate to the oral communication skill level, and language and literacy capacity of the candidate and the work being performed.

In all cases where practical assessment is used it will be combined with targeted questioning to assess required knowledge. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency.

Where applicable, physical resources should include equipment modified for people with special needs.

Required skills

communication skills to liaise with customer on operational and site matters

literacy skills to interpret technical documentation, including antenna specifications and test equipment manuals

numeracy skills to:

determine look angles from charts or by calculation

evaluate different types of technical data

interpret results

take radio frequency (RF) measurements

planning and organisation skills to arrange site access

safety awareness skills to:

apply precautions and required action to minimise, control or eliminate hazards that may exist during work activities

select and use required personal protective equipment conforming to industry and occupational health and safety (OHS) standards

work systematically with required attention to detail without injury to self or others, or damage to goods or equipment

technical skills to:

assemble antenna according to plans

physically align antenna

strip, prepare and terminate single, dual, triple and quad shield coaxial cable

use hand and power tools and operate test equipment

use multimeter to test coaxial cable

use signal level meter or spectrum analyser

Required knowledge

antenna:

directivity

front to back ratio

operation of parabolic reflector and feedhorn

optimum placement

pattern

polarisation

bit error ratio (BER)

coaxial cable types and properties

electromagnetic waves:

absorption by trees and buildings

awareness of exposure to electromagnetic radiation (EMR)

reflection

legislation, codes of practice and other formal agreements that directly impact on antenna installation

modulation:

bandwidth

individual spectrum shape of digital satellite television signals

modulation error ratio (MER)

RF spectrum:

terminology related to bands used for satellite broadcasting: (C, S, L, Ku, Ka bands)

satellite antenna product knowledge

signal level expressed in dBuV units

specific OHS requirements that impact on the installation of satellite antenna equipment

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Relevant legislation, codes, regulations and standards may include:

Australian Communications Industry Forum (ACIF) standards and codes

Australian Communications and Media Authority (ACMA) technical standards

AS Communications Cabling Manual (CCM) Volume 1

Australian building codes and regulations

AS/NZS 1367:2007

AS/NZS 1768:2007

AS 1417.1:1987

enterprise standards

environmental protection

fire regulations

heritage legislation

industrial relations agreements including awards and enterprise agreements

international standards

local government

manufacturer's enterprise operating policy and procedures

national code

OHS Act

other services and utilities codes of practice and standards:

electricity

gas

water

power company requirements

Privacy Act

Spectrum Management Authority

statutory requirements

Trade Practices Act

traditional land owners.

Safety issues may refer to:

devices to support construction personnel at heights:

elevated personnel vehicles

non-metallic ladders

platforms

external factors affecting works:

concentration of other services

terrain

weather conditions

precautions for unsafe weather conditions to undertake works:

heavy rains

high winds

severe cold

severe heat

thunderstorms

preparing for work at a telecommunications site with potential EMR hazards

safety issues in:

fall arrest

fall guarding

roof work.

Tools and equipment may include:

fall arrest systems required on structure where no ladder cages installed

general equipment:

elevated platform

hand and power tools

ladder

winch

magnetic compass

personal protective equipment:

earmuffs

eye protection

dust protection

gloves

hard hats

personal reflecting jackets

safety boots

safety equipment:

aerial safety belts and lines

helmets

safety cages

traffic signs

warning signs and tapes

witches hats.

Details of satellite may include:

horizontally polarised transponders:

forward correction error (FEC)

frequency

symbol rate

satellite longitude

satellite name

vertically polarised transponders:

FEC

frequency

symbol rate.

Satellite antenna location may include:

latitude

longitude.

Look angles may refer to:

azimuth angle relative to north

elevation angle relative to horizontal.

Suitable position may include:

consideration of future building additions

consideration of growth of trees

ground level

outside wall of building

rooftop

unobstructed view in direction of satellite.

Coaxial cable may include:

coaxial cable with flooded polyethylene (PE) jacket for underground applications

RG11 quad shielded

RG6 quad shielded.

Initial antenna azimuth, elevation and polarisation may be set according to:

calibrated markings on antenna mount

inclinometer

magnetic compass

plumb bob.

Test equipment may include:

field strength meter

multimeter

satellite meter

signal level meter

spectrum analyser.

Optimise the signal may refer to:

achieving uniform performance across multiple transponders

BER pre FEC

carrier to noise ratio (C/N)

MER

signal strength in dBuV.

Performance tests may include:

signal quality across all satellite digital channels

signal strength of satellite digital television channels.