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Riitta Rontu • Lecturer, Telecommunications • Room 3344 • Mobile +358 (0)400 680215 • Email: riitta.rontu@oamk.f • Home page:

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(1)

Apr 20, 2022

Telecom Basics / JPR

1

Riitta Rontu

• Lecturer, Telecommunications

• Room 3344

• Mobile +358 (0)400 680215

• Email: riitta.rontu@oamk.f

• Home page:

http://www.oamk.f/~ronturi/

(2)

Telecommunication Systems, 3 ECTS

• Purpose of the exercises

– To get the students acquainted with the most general measurement equipment in telecommunication branch – To get the students acquainted with some basic

telecommunication topics in practice

– To realize some of the basic phenomenons and methods that are studied in the theory lessons

•Laboratory exercises 21 hours

(3)

Apr 20, 2022

Telecom Basics / JPR

3

• Instructions for the exercises

– Instructions for the measurements

– The instructions include also some calculations and other tasks to be performed before and during the exercises

– Additional reports are not needed afterwards, all tasks

should be completed in the instruction paper during the lab hours.

– The group may not leave the laboratory before they have completed the exercise and got the approval from the

teacher.

– Instructions can be found in Telecom Laboratory’s homepage (www.oamk.fi/tekniikka/tl-lab)

– Students should print the instructions themselves. It can be done in the lab, but bring your own paper!

Material

(4)

Execution of the laboratory course

• Five exercise sessions, on thursdays at 12.15 pm

Start at week 46 (13.11.2003)

• Every exercise takes about 4 hours

• The exercises will be done in 4 groups, 2-3 members in each group

• Take your theory books and other material with you in the lab

• You must take part in every exercise. If you get ill or have some other things that prevent you from coming to the session, do not hesitate to ask the teacher how you can substitute your absence.

• The laboratory part of the course will be accepted when you have completed all exercises and returned the properly filled exercise forms and have them approved by the teacher. No exams will be hold in this part.

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Apr 20, 2022

Telecom Basics / JPR

5

The contents of the exercises

• 1. session:

– The introduction of the most usual measurement equipment that are used in telecommunications :

• Basic measurements of low frequency signals with oscilloscopes

• Basic measurements of high frequency signals with spectrum analyzers

• 2. – 5. Sessions:

– Each group is performing one of four exercises in their turn.

(6)

The contents of the exercises

• The exercise subjects:

– PCM transmission

– Speech and sound analysis – Television and video signals – Modulation methods

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Apr 20, 2022

Telecom Basics / JPR

7

The contents of the exercises

• PCM transmission:

– Measurements of different stages in the PCM-

process, which means the transforming of analog speech signal into digital signal

(8)

The contents of the exercises

• Speech and sound analysis

– Analysing the characteristics of students own

speech signal with Sound Forge analysing software

(9)

Apr 20, 2022

Telecom Basics / JPR

9

The contents of the exercises

• Television and video signals

– Measurements of typical television signals with different spesific measurement devices

– Getting familiar with digital-analog transceiver for television

(10)

The contents of the exercises

• Modulation methods

– Measurements of some analog and digital modulation methods

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