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Introduction to HF data exchange via cable

2 Nokia 21-01-2000

Spectrum

Bandwidth / effective bandwidth

What is high-frequency telecommunication?

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Characteristic impedance

Transmission / cable impairments

Attenuation

Decibel

Reflection

Cable properties

Skin effect

Noise

3 Nokia 21-01-2000

returnloss

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1/2 cable connector

7/8 cable connector

11/4 cable connector

Types of connector and cable

4 Nokia 21-01-2000

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What is returnloss?

How can it be measured?

Introduction to returnloss measurement

5 Nokia 21-01-2000

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Accurate, repeatable measurements

Use of Site Master

Introduction to Anritsu Site Master

6 Nokia 21-01-2000

returnloss and SWR

Distance to fault

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Connecting cable connectors and earthing kit

1/2 cable

Practical session examination

7 Nokia 21-01-2000

7/8 cable

1

1

/4 cable

Earthing kit

Measurement of1/2 connector

Measurement of7/8 connector

Measurement of 11/4 connector

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What is high-frequency telecommunication?

Introduction to HF data exchange via cable

8 Nokia 21-01-2000

U

t

Amplitude

Informat ion Time axis

Carrier Time axis

Result Time axis

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Spectrum

9 Nokia 21-01-2000

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Bandwidth and effective bandwidth

1

0

Nokia 21-01-2000

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Cable properties

1

1

Nokia 21-01-2000

Characteristic impedance

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Transmission / cable impairments

1

2

Nokia 21-01-2000

Attenuation

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Decibel

1

3

Nokia 21-01-2000

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Reflection

1

4

Nokia 21-01-2000

l

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Skin effect

1

5

Nokia 21-01-2000

Noise

returnloss

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Types of connector and cable

1

6

Nokia 21-01-2000

1/2

cable connector

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1

7

Nokia 21-01-2000

7/8

cable connector

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1

8

Nokia 21-01-2000

1 1/4

cable connector

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1

9

Nokia 21-01-2000

The Anritsu Site Master

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2

0

Nokia 21-01-2000

Anritsu measurement set-up and modes

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2

1

Nokia 21-01-2000

Trainers Guide: Connectors and measurement returnloss module

Slides 1-7Go through the content of the course. Explain briefly what will be discussed in connection with each

topic. Point out that the course will end with an examination, on the basis of which certificates will be

awarded to trainees.

Slide 8Explain the basics of telecommunication, signal properties and modulation techniques. Be brief and do

not go into too much detail. Avoid mathematics as far as possible.

Slides 9 - 10Explain the concepts of spectrum and bandwidth and how they are related.

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2

2

Nokia 21-01-2000

Slide 11Relate cable properties such as characteristic impedance to the concepts previously explained, such as

modulation frequency, spectrum and bandwidth.

Slides 12 - 13Explain the relation between input and output signals and the concept of attenuation, dB, etc.

Slide 14Explain reflection. The example of a rope fastened to a wall will help, or the example of sound waves

(echoes).

Slide 15Explain skin effect and noise, and how these concepts relate to the definition of returnloss.

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2

3

Nokia 21-01-2000

Slides 16 - 18Go over cable properties using the specification sheets included in the course manual and point out

items that have been discussed, such as characteristic impedance, bandwidth, etc.

Slide 19Link the items discussed to measurement and measuring equipment.

Explain that different frequencies will be delayed and attenuated differently and explain how this canbe measured.

Slide 20Introduce the Anritsu family and point out certain differences between them.

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2 Nokia 21-01-2000

Slides 21 - 22Show examples of Site Master output and explain the various modes; point out where the items

discussed can be found in the output examples.

Slide 23Introduce the examination and certification. Trainees will connect connectors and measure the cable

using a Site Master.