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Evidence Guide: ICTRFN803 - Analyse a satellite communications system

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!

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ICTRFN803 - Analyse a satellite communications system

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

Research satellite communication systems

  1. Research satellite applications with various orbit types for assessing their spatial positioning for specific purposes
  2. Analyse and report on architecture, major subsystems and critical components in communication systems of recently launched commercial satellite
  3. Research and report on multiple access techniques and their typical applications
Research satellite applications with various orbit types for assessing their spatial positioning for specific purposes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse and report on architecture, major subsystems and critical components in communication systems of recently launched commercial satellite

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Research and report on multiple access techniques and their typical applications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse uplink and downlink variables

  1. Determine uplink and downlink criteria that impact on carrier to noise ratio
  2. Determine up/down link criteria that impact on baseband signal to noise ratio
  3. Determine critical parameters of a satellite system
  4. Research common types of baseband signal processing, and their spectral and noise improvement parameters for determining criteria for link budget evaluations
Determine uplink and downlink criteria that impact on carrier to noise ratio

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine up/down link criteria that impact on baseband signal to noise ratio

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine critical parameters of a satellite system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Research common types of baseband signal processing, and their spectral and noise improvement parameters for determining criteria for link budget evaluations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct link budget analysis

  1. Produce satellite link budget and calculate link margin for satellite system with specified modulation types
  2. Analyse relationship between bit error ratio (BER) for given energy per bit per noise power density (Eb/No) and forward error correction (FEC) parameter for determining operational performance of link
Produce satellite link budget and calculate link margin for satellite system with specified modulation types

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse relationship between bit error ratio (BER) for given energy per bit per noise power density (Eb/No) and forward error correction (FEC) parameter for determining operational performance of link

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse properties of geostationary satellites

  1. Calculate look angles for geostationary satellite from any receiving location
  2. Research and report on frequency re-use in conjunction with polarisation selection and use of spot beams
  3. Analyse and specify major features of very small aperture terminal (VSAT) systems, and calculate link reliability in high rainfall regions
Calculate look angles for geostationary satellite from any receiving location

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Research and report on frequency re-use in conjunction with polarisation selection and use of spot beams

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse and specify major features of very small aperture terminal (VSAT) systems, and calculate link reliability in high rainfall regions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements

Performance Criteria

Elements describe the essential outcomes

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

1. Research satellite communication systems

1.1 Research satellite applications with various orbit types for assessing their spatial positioning for specific purposes

1.2 Analyse and report on architecture, major subsystems and critical components in communication systems of recently launched commercial satellite

1.3 Research and report on multiple access techniques and their typical applications

2. Analyse uplink and downlink variables

2.1 Determine uplink and downlink criteria that impact on carrier to noise ratio

2.2 Determine up/down link criteria that impact on baseband signal to noise ratio

2.3 Determine critical parameters of a satellite system

2.4 Research common types of baseband signal processing, and their spectral and noise improvement parameters for determining criteria for link budget evaluations

3. Conduct link budget analysis

3.1 Produce satellite link budget and calculate link margin for satellite system with specified modulation types

3.2 Analyse relationship between bit error ratio (BER) for given energy per bit per noise power density (Eb/No) and forward error correction (FEC) parameter for determining operational performance of link

4. Analyse properties of geostationary satellites

4.1 Calculate look angles for geostationary satellite from any receiving location

4.2 Research and report on frequency re-use in conjunction with polarisation selection and use of spot beams

4.3 Analyse and specify major features of very small aperture terminal (VSAT) systems, and calculate link reliability in high rainfall regions

Required Skills and Knowledge

Elements

Performance Criteria

Elements describe the essential outcomes

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

1. Research satellite communication systems

1.1 Research satellite applications with various orbit types for assessing their spatial positioning for specific purposes

1.2 Analyse and report on architecture, major subsystems and critical components in communication systems of recently launched commercial satellite

1.3 Research and report on multiple access techniques and their typical applications

2. Analyse uplink and downlink variables

2.1 Determine uplink and downlink criteria that impact on carrier to noise ratio

2.2 Determine up/down link criteria that impact on baseband signal to noise ratio

2.3 Determine critical parameters of a satellite system

2.4 Research common types of baseband signal processing, and their spectral and noise improvement parameters for determining criteria for link budget evaluations

3. Conduct link budget analysis

3.1 Produce satellite link budget and calculate link margin for satellite system with specified modulation types

3.2 Analyse relationship between bit error ratio (BER) for given energy per bit per noise power density (Eb/No) and forward error correction (FEC) parameter for determining operational performance of link

4. Analyse properties of geostationary satellites

4.1 Calculate look angles for geostationary satellite from any receiving location

4.2 Research and report on frequency re-use in conjunction with polarisation selection and use of spot beams

4.3 Analyse and specify major features of very small aperture terminal (VSAT) systems, and calculate link reliability in high rainfall regions

Evidence of the ability to:

analyse satellite communications system architecture

produce a satellite link budget and calculate link margin for a range of digital modulation types

calculate the look angles for a geostationary satellite from any receiving location

analyse and specify the major features of very small aperture terminal (VSAT) systems.

Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.

To complete the unit requirements safely and effectively, the individual must:

identify and perform antenna calculations including:

gain

beamwidth

polarisation

effective isotropic radiated power (EIRP)

define bit error rate (BER) and how it affects satellite communications

outline carrier and noise ratio

explain constellation and eye diagrams

outline distance to satellite and typical delays

summarise frequency spectrum (satellite bands)

explain gain-to-noise-temperature G/T ratio

outline geostationary orbit

explain link budget calculation

explain look angle calculations

describe low earth orbiting (LEO) satellites

evaluate the following modulation types suitable for satellite communications:

n-FSK:

2FSK

4FSK

n-PSK:

2PSK

4PSK

8PSK

16PSK

n-QAM:

16 QAM

256QAM

define spread spectrum techniques including:

direct sequence

frequency hopping.