Graduate study programme

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Radio-relay and Satellite Communications DKa2-03

ECTS 5 | P 30 | A 30 | L 0 | K 0 | ISVU 149802 | Academic year: 2019./2020.

Course groups

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Course lecturers

MATIĆ TOMISLAV (st.), Lecturer


By successfully mastering the course, students will learn about radio relay systems and understand the way RR radio equipment works (MUX, modem, first transmitter). By preparing seminar papers, students will learn the methodology of designing an RR link and will handle topics from the field of mobile satellite systems, satellite antennas and the use of satellite communications for special purposes - TDRSS. Participants will acquire knowledge in the field of radio diffusion and communication satellites, and special purpose satellites: orbital positioning.

Conditions for enrollment

Requirements met for enrolling in the study programme

Course description

Examples of radio-relay systems (analogue, digital, low-channel, multi-channel). Distribution of electromagnetic spectrum, planning of RR link. Reliability and quality of connection, reference circuit. Radio RR equipment connection: MUX, modem, first transmitter. Conditions of propagation: atmospheric effects, choking of free space. Antenna RR connection: antenna features, antenna types. Frequency plan: channel planning, interference, transverse-back connection to the back-to-back system, intermodulation products. RR Link Design: Fresnell’s zone, budget route, failure, diversity technique. Synchronous digital hierarchy. Radio-diffusion and communication satellites, and special-purpose satellites: orbital accommodation. Technical characteristics and parameters of a communication satellite and terrestrial stations: antennas, low-noise pre-amplifiers, output amplifiers, transponders. Commutation on a satellite. Calculation of up-link and down-link. Influence of the atmosphere. Receiver temperature of a receiver. Mobile satellite systems. Satellite antenna. Use of satellite communications for special purposes.


Classes cannot be taught in the English language.

Student requirements

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Monitoring of students

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Obligatory literature

1. 1 Gerard., Maral; Bousquet; Michel ; Sun, Zhili Satellite Communications Systems: Systems, Techniques and Technology Wiley, 2009.

2. 2 I.Modlic, B.Modlic Visokofrekvencijska elektronika - Oscilatori, pojačala snage Školska knjiga, Zagreb, 1982.

3. 3 I.Modlic, B.Modlic Visokofrekvencijska elektronika - Modulacija, modulatori, sintezatori frekvencije Školska knjiga, Zagreb, 1982.

Pretraži literaturu na:

Recommended additional literature

1. 1 M.Schwartz Information, Transmission, Modulation and Noise McGraw-Hill, 1980.

Course assessment

Conducting university questionnaires on teachers (student-teacher relationship, transparency of assessment criteria, motivation for teaching, teaching clarity, etc.). Conducting Faculty surveys on courses (upon passing the exam, student self-assessment of the adopted learning outcomes and student workload in relation to the number of ECTS credits allocated to activities and courses as a whole).

Overview of course assesment

Learning outcomes
Upon successful completion of the course, students will be able to:

1. identify and understand the underlying concepts related to digital radio-relay (RR) and satellite (stationary and mobile) communication systems

2. describe and explain the key technical characteristics and parameters of radio equipment (low-noise input amplifier, MUX, output power amplifier, modem, transponder) and characteristics of typical RR and satellite antenna systems

3. evaluate the effects of propagation, atmospheric conditions and free space propagation losses on the quality of RR and satellite connection systems

4. evaluate and apply planning, reliability and quality of RR and satellite connections in terms of the frequency plan: channel arrangement, interference, parasitic cross-linking and intermodulation products

5. evaluate the methods and apply RR design planning procedures: estimation of connectivity of the first Fresnell's zone, calculation of propagation loss on the trail and fading and application of diversity techniques

6. evaluate and describe the difference between radio-diffusion, communication satellites and special purpose satellites with respect to the orbit position, satellite switching, influence of the atmosphere and the noise temperature of a receivere

Aktivnosti studenta: Vidi tablicu aktivnosti