Basic Satellite Communication. Thaicom Customer and Network Services Department

Size: px
Start display at page:

Download "Basic Satellite Communication. Thaicom Customer and Network Services Department"

Transcription

1 Basic Satellite Communication Thaicom Customer and Network Services Department

2 Satellite Communication System Control & Monitoring Station Satellite Space Segment Uplink Signals Downlink Signals Receive Sites Transmit Sites Ground Segment

3 Satellite Communication Satellite amplifies the uplink signal from earth and beams back to earth Advantages : - Easy installation :: stand alone terminals, suitable for remote areas - Wide area coverage :: one-third of globe, suitable for broadcast applications Disadvantages: - Open System:: prone to interferences, security issues data encryption - Unavoidable natural phenomena like sun outage

4 Basic Satellite Configuration 1V Ku: 14GHz C: 6GHz LNA Down Converter I M U X 2V 12V O M U X Ku: 12GHz C : 4GHz Receiver Section High Power Amplifiers (Transponders) LNA : Low Noise Amplifier; amplifies the received uplink signal Down Converter: Frequency conversion from uplink to downlink frequency IMUX : Input Multiplexer OMUX : Output Multiplexer HPAs / Transponders : High Power Amplifier, amplifies the downlink signal

5 Satellite Orbits Types LEO : Low Earth Orbit Altitude : less than 2000 km. Approximately minutes orbits around the earth. Applications : Satellite phone MEO : Medium Earth Orbit Altitude : ~ km. Approximately 4-8 hours orbits around the earth Applications : High speed data transmission, GPS, etc. GEO : Geosynchronous Orbit Altitude : ~36000 km. 24 hours orbits around the earth (equal to earth orbits around itself). Lie in the equatorial plane. Applications : High Speed Internet, Live TV program, etc.

6 Thaicom Satellites & Footprints Thaicom E 120 E ipstar [A] C-Band Global Beam [B] C-Band Regional Beam [C] Ku-Band Thailand Beam [D] Ku-Band Indochina Beam Beam Peak 38dBW Beam Peak 41 dbw Beam Peak 57 dbw Beam Peak 56 dbw (A) Spot Beam (B) Broadcast Beam (C) Shape Beam

7 Satellite Station Keeping Sun s Gravity Orbital Plane E N Solar Pressure W S Earth s Gravity Moon s Gravity Satellite cannot stay exactly at its orbital slot position due to many forces which are acting on it. Satellite controllers need to maneuver the satellite few times a day/week to keep satellite within the box Center of Box Time is the best time for earth stations to align the antennas (especially the big antennas due to small beam width) Satellite downlink signal level varies with 24 hours cycle

8 Sun Outage Orbital Plane What is Sun Outage? During the time when both the satellite and the sun are in the earth station's field of view, the energy from the sun can overpower the signal from the satellite. Also known as sun transit or sun fade. Bore Sight Does it affect to satellite services? Yes, sun outage causes total outage to all satellite services since signal is lost in noise. Can it be prevented? No, it is a natural phenomenon and occurs in all satellites What should earth stations do at that time? Sun outage effects the receive path (not transmit). Auto-tracking antennas should be in standby mode to prevent erroneous tracking.

9 Sun Outage (continue) How Often Does it Happens? How long does it last when occur? There are two sun outage seasons a year. Outage occur for few minutes (depending on antenna size) per day and this happens for few days. Difference location, different time of outage. Smaller Antenna Wider Beamwidth Longer Outage Time Online Sun Outage Prediction Program:

10 Earth Station Uplink System (examples) Uplink Frequency Ranges for Thaicom-5 Standard C-Band : GHz Extended C-Band : GHz Baseband Signal (Voice, Data, Video, etc) Modem Upconverter HPA IF: 70MHz RF: 6 GHz (C- Band) L-Band Modem BUC L-Band: GHz RF: 6 GHz (C- Band)

11 Earth Station Downlink System (examples) L-Band ** IRD / Modem LNB Baseband Signal (Voice, Data, Video, etc) Modem Down Converter LNA IF Frequency Thaicom 5 Frequency Conversions U/L MHz=D/L (Std-C Band) U/L MHz=D/L (Ext-C Band) (conversion depends on satellite LO) RF: 4 GHz ** LNB Frequency Conversions (MHz) 5150-D/L=L-Band (Std-C Band) (GHz) 11.3 D/L=L-Band (Ku-Band) ( conversion depends on LO of LNB )

12 Thank You

Glossary of Satellite Terms

Glossary of Satellite Terms Glossary of Satellite Terms Satellite Terms A-D The following terms and definitions will help familiarize you with your Satellite solution. Adaptive Coding and Modulation (ACM) Technology which automatically

More information

Satellite Communications. Chapter 9

Satellite Communications. Chapter 9 Satellite Communications Chapter 9 Satellite-Related Terms Earth Stations antenna systems on or near earth Uplink transmission from an earth station to a satellite Downlink transmission from a satellite

More information

Satellite Communications. Chapter 9

Satellite Communications. Chapter 9 Satellite Communications Chapter 9 Satellite-Related Terms Earth Stations antenna systems on or near earth Uplink transmission from an earth station to a satellite Downlink transmission from a satellite

More information

DRONACHARYA GROUP OF INSTITUTIONS, GREATER NOIDA. SATELLITE COMMUNICATIONS (EEC 021) QUESTION BANK

DRONACHARYA GROUP OF INSTITUTIONS, GREATER NOIDA. SATELLITE COMMUNICATIONS (EEC 021) QUESTION BANK DRONACHARYA GROUP OF INSTITUTIONS, GREATER NOIDA. SATELLITE COMMUNICATIONS (EEC 021) QUESTION BANK 1. Write the advantages and disadvantages of Satellite Communication. 2. Distinguish between active and

More information

1. Discuss in detail the Design Consideration of a Satellite Communication Systems. [16]

1. Discuss in detail the Design Consideration of a Satellite Communication Systems. [16] Code No: R05410409 Set No. 1 1. Discuss in detail the Design Consideration of a Satellite Communication Systems. 2. (a) What is a Geosynchronous Orbit? Discuss the advantages and disadvantages of these

More information

Bluetooth BlueTooth - Allows users to make wireless connections between various communication devices such as mobile phones, desktop and notebook comp

Bluetooth BlueTooth - Allows users to make wireless connections between various communication devices such as mobile phones, desktop and notebook comp ECE 271 Week 8 Bluetooth BlueTooth - Allows users to make wireless connections between various communication devices such as mobile phones, desktop and notebook computers - Uses radio transmission - Point-to-multipoint

More information

Earth Station and Flyaway

Earth Station and Flyaway 2012 Page 1 3/27/2012 DEFINITIONS Earth Station- Terrestrial terminal designed for extra planetary telecommunication Satellite- Artificial Satellite is an object placed in an specific orbit to receive

More information

B ==================================== C

B ==================================== C Satellite Space Segment Communication Frequencies Frequency Band (GHz) Band Uplink Crosslink Downlink Bandwidth ==================================== C 5.9-6.4 3.7 4.2 0.5 X 7.9-8.4 7.25-7.7575 0.5 Ku 14-14.5

More information

Satellite Sub-systems

Satellite Sub-systems Satellite Sub-systems Although the main purpose of communication satellites is to provide communication services, meaning that the communication sub-system is the most important sub-system of a communication

More information

(650536) Prerequisite: Digital Communications (610533) Instructor: Dr. Abdel-Rahman Al-Qawasmi

(650536) Prerequisite: Digital Communications (610533) Instructor: Dr. Abdel-Rahman Al-Qawasmi Communications & Electronics Engineering Dept. Part 6 Satellite Communications Communication Networks (650536) Prerequisite: Digital Communications (610533) Instructor: Dr. Abdel-Rahman Al-Qawasmi Text

More information

INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY

INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY A PATH FOR HORIZING YOUR INNOVATIVE WORK SATELLITE COMMUNICATION AND ITS APPLICATIONS SHEETAL RAJPUT Dept. of Computer Science

More information

Introduction to Satellite Communications (101) A typical Raditek VSAT

Introduction to Satellite Communications (101) A typical Raditek VSAT Introduction to Satellite Communications (101) A typical Raditek VSAT Dish directs the RF (via a power amplifier or BUC-Block Upconverter) to the satellite and receives (via an LNA or LNB-Low Noise Block

More information

Satellite Basics Term Glossary

Satellite Basics Term Glossary Satellite Basics Term Glossary AES Advanced Encryption Standard is an encryption standard comprised of three blocks of ciphers AES 128, AES 192, and AES 256 ACM Adaptive Coding and Modulation uses an algorithm

More information

9/22/08. Satellite Systems. History of satellite communication. Applications. History Basics Localization Handover Routing Systems

9/22/08. Satellite Systems. History of satellite communication. Applications. History Basics Localization Handover Routing Systems Satellite Systems History Basics Localization Handover Routing Systems History of satellite communication 1945 Arthur C. Clarke publishes an essay about Extra Terrestrial Relays 1957 first satellite SPUTNIK

More information

Unguided Media and Matched Filter After this lecture, you will be able to Example?

Unguided Media and Matched Filter After this lecture, you will be able to Example? Unguided Media and Matched Filter After this lecture, you will be able to describe the physical and transmission characteristics of various unguided media Example? B.1 Unguided media Guided to unguided

More information

Satellite Communications System

Satellite Communications System Satellite Communications System Capacity Allocation Multiplexing Transponders Applications Maria Leonora Guico Tcom 126 Lecture 13 Capacity Allocation Strategies Frequency division multiple access (FDMA)

More information

Chapter 3 Solution to Problems

Chapter 3 Solution to Problems Chapter 3 Solution to Problems 1. The telemetry system of a geostationary communications satellite samples 100 sensors on the spacecraft in sequence. Each sample is transmitted to earth as an eight-bit

More information

UNIVERSITY OF NAIROBI Radio Frequency Interference in Satellite Communications Systems

UNIVERSITY OF NAIROBI Radio Frequency Interference in Satellite Communications Systems UNIVERSITY OF NAIROBI Radio Frequency Interference in Satellite Communications Systems Project No. 090 Mitei Ronald Kipkoech F17/2128/04 Supervisor: Dr.V.K Oduol Examiner: Dr. Gakuru OBJECTIVES To study

More information

Satellite Communications Training System

Satellite Communications Training System Satellite Communications Training System LabVolt Series Datasheet Festo Didactic en 220 V - 60 Hz 07/208 Table of Contents General Description 2 System Configurations and Capabilities 3 Topic Coverage

More information

Day 1 Part1 course. Basics of satellite communications

Day 1 Part1 course. Basics of satellite communications Day 1 Part1 course Basics of satellite communications 1 Historical Perspective of satellite communications 2 1- Birth of satellite communications Satellites are able to fulfill a number of roles. One of

More information

Precision Validation, Maintenance and Repair of Satellite Earth Stations

Precision Validation, Maintenance and Repair of Satellite Earth Stations Precision Validation, Maintenance and Repair of Satellite Earth Stations September 18, 2014 Co-sponsored by Keysight Technologies 2014 Tom Hoppin Application Specialist Component Test Division Keysight

More information

SATELLIT COMMUNICATION

SATELLIT COMMUNICATION QUESTION BANK FOR SATELLITE COMMUNICATION UNIT I 1) Explain Kepler s laws. What are the fords that give rise to these laws? 2) Explain how a satellite is located with respect to earth. 3) Describe antenna

More information

INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad

INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad - 00 0 ELECTRONICS AND COMMUNICATION ENGINEERING TUTORIAL QUESTION BANK Course Name : SATELLITE COMMUNICATION Course Code : AEC Class

More information

INSTITUTE OF AERONAUTICAL ENGINEERING

INSTITUTE OF AERONAUTICAL ENGINEERING INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad - 500 043 ELECTRONICS AND COMMUNICATION ENGINEERING ASSIGNMENT QUESTIONS Course Name : SATELLITE COMMUNICATIONS Course Code : A80452-R13

More information

Chapter 13: Wave Propagation. EET-223: RF Communication Circuits Walter Lara

Chapter 13: Wave Propagation. EET-223: RF Communication Circuits Walter Lara Chapter 13: Wave Propagation EET-223: RF Communication Circuits Walter Lara Electrical to Electromagnetic Conversion Since the atmosphere is not a conductor of electrons (instead a good insulator), electrical

More information

Satellite Signals and Communications Principles. Dr. Ugur GUVEN Aerospace Engineer (P.hD)

Satellite Signals and Communications Principles. Dr. Ugur GUVEN Aerospace Engineer (P.hD) Satellite Signals and Communications Principles Dr. Ugur GUVEN Aerospace Engineer (P.hD) Principle of Satellite Signals In essence, satellite signals are electromagnetic waves that travel from the satellite

More information

Week 2. Topics in Wireless Systems EE584-F 03 9/9/2003. Copyright 2003 Stevens Institute of Technology - All rights reserved

Week 2. Topics in Wireless Systems EE584-F 03 9/9/2003. Copyright 2003 Stevens Institute of Technology - All rights reserved Week Topics in Wireless Systems 43 0 th Generation Wireless Systems Mobile Telephone Service Few, high-power, long-range basestations -> No sharing of spectrum -> few users -> expensive 44 Cellular Systems

More information

Technician Licensing Class

Technician Licensing Class Technician Licensing Class Talk to Outer Presented Space by Amateur Radio Technician Class Element 2 Course Presentation ELEMENT 2 SUB-ELEMENTS (Groupings) About Ham Radio Call Signs Control Mind the Rules

More information

DDPP 2163 Propagation Systems. Satellite Communication

DDPP 2163 Propagation Systems. Satellite Communication DDPP 2163 Propagation Systems Satellite Communication 1 Satellite Two far apart stations can use a satellite as a relay station for their communication It is possible because the earth is a sphere. Radio

More information

SEMBODAI RUKMANI VARATHARAJAN ENGINEERING COLLEGE SATELLITE COMMUNICATION PREVIOUS YEAR UNIVERSITY QUESTION PAPERS

SEMBODAI RUKMANI VARATHARAJAN ENGINEERING COLLEGE SATELLITE COMMUNICATION PREVIOUS YEAR UNIVERSITY QUESTION PAPERS SEMBODAI RUKMANI VARATHARAJAN ENGINEERING COLLEGE DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING SATELLITE COMMUNICATION PREVIOUS YEAR UNIVERSITY QUESTION PAPERS PREPARED BY G.SUNDAR M.Tech.,MISTE.,

More information

Ka Band and Broadband Satellite service

Ka Band and Broadband Satellite service Ka Band and Broadband Satellite service Agenda Advantage & Necessity of Ka-band Attenuation Mitigation Techniques Current Broadband Satellite service ADVANTAGE & NECESSITY OF KA-BAND Why Ka Band Ka-band

More information

Chapter 6 Solution to Problems

Chapter 6 Solution to Problems Chapter 6 Solution to Problems 1. You are designing an FDM/FM/FDMA analog link that will occupy 36 MHz of an INTELSAT VI transponder. The uplink and downlink center frequencies of the occupied band are

More information

Lecture 3: The Physical Layer and Transmission Media

Lecture 3: The Physical Layer and Transmission Media Lecture 3: The Physical Layer and Transmission Media Dr. Mohammed Hawa Electrical Engineering Department University of Jordan EE426: Communication Networks The Physical Layer Converts bit streams into

More information

EELE 5451 Satellite Communications

EELE 5451 Satellite Communications EELE 5451 Satellite Communications Introduction Applications include: Communications systems, Remote sensing (detection of water pollution, monitoring of weather conditions, search and rescue operations).

More information

Satellite Communications

Satellite Communications Satellite Communications Part IV-Lecture 5-Satellite Link Design Lecturer Madeeha Owais 1 Learning Objectives Solving calculations of Link Budget for various satellite systems 2 Calculate uplink transmitter

More information

RECOMMENDATION ITU-R SNG * Uniform technical standards (analogue) for satellite news gathering (SNG)

RECOMMENDATION ITU-R SNG * Uniform technical standards (analogue) for satellite news gathering (SNG) Rec. ITU-R SNG.722-1 1 RECOMMENDATION ITU-R SNG.722-1 * Uniform technical standards (analogue) for satellite news gathering (SNG) (1990-1992) The ITU Radiocommunication Assembly, considering a) that satellite

More information

LE/ESSE Payload Design

LE/ESSE Payload Design LE/ESSE4360 - Payload Design 4.3 Communications Satellite Payload - Hardware Elements Earth, Moon, Mars, and Beyond Dr. Jinjun Shan, Professor of Space Engineering Department of Earth and Space Science

More information

Unguided Transmission Media

Unguided Transmission Media CS311 Data Communication Unguided Transmission Media by Dr. Manas Khatua Assistant Professor Dept. of CSE IIT Jodhpur E-mail: manaskhatua@iitj.ac.in Web: http://home.iitj.ac.in/~manaskhatua http://manaskhatua.github.io/

More information

Efficient and Effective Usage of Ka-band in Asia-Pacific

Efficient and Effective Usage of Ka-band in Asia-Pacific Efficient and Effective Usage of Ka-band in Asia-Pacific WEERACHAI TIRANANMONGKOL AVP - Engineering Support THAICOM Public Company Limited, THAILAND ITU Region Seminar for RCC countries on Prospects for

More information

BeiDou Space Service Volume Parameters and its Performance

BeiDou Space Service Volume Parameters and its Performance BeiDou Space Service Volume Parameters and its Performance Prof. Xingqun ZHAN, Shuai JING Shanghai Jiaotong University, China Xiaoliang WANG China Academy of Space Technology Contents 1 Background and

More information

Day 1 Session 2. Earth Station Technology

Day 1 Session 2. Earth Station Technology Day 1 Session 2 Earth Station Technology 1 1- Types of antennas Satellites being far from earth require directional antennas in order to communicate. A directional antenna normally uses a parabolic reflector

More information

SATELLITE SUBSYSTEMS. Networks and Communication Department. Dr. Marwah Ahmed

SATELLITE SUBSYSTEMS. Networks and Communication Department. Dr. Marwah Ahmed 1 SATELLITE SUBSYSTEMS Networks and Communication Department Dr. Marwah Ahmed Outlines Attitude and Orbit Control System (AOCS) Telemetry, Tracking, Command and Monitoring (TTC & M) Power System Communication

More information

FIGURE 14-1 (a) Focal points F1 and F2, semimajor axis a, and semiminor b of an ellipse; (b) Kepler s second law

FIGURE 14-1 (a) Focal points F1 and F2, semimajor axis a, and semiminor b of an ellipse; (b) Kepler s second law FIGURE 14-1 (a) Focal points F1 and F2, semimajor axis a, and semiminor b of an ellipse; (b) Kepler s second law FIGURE 14-2 Satellite orbits: (a) circular; (b) elliptical FIGURE 14-3 Satellite orbital

More information

Data and Computer Communications. Tenth Edition by William Stallings

Data and Computer Communications. Tenth Edition by William Stallings Data and Computer Communications Tenth Edition by William Stallings Data and Computer Communications, Tenth Edition by William Stallings, (c) Pearson Education - Prentice Hall, 2013 Wireless Transmission

More information

INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad

INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad - 500 043 ELECTRONICS AND COMMUNICATION ENGINEERING TUTORIAL QUESTION BANK Name : SATELLITE COMMUNICATIONS Code : A80452-R13 Class

More information

Multiple Access. Difference between Multiplexing and Multiple Access

Multiple Access. Difference between Multiplexing and Multiple Access Multiple Access (MA) Satellite transponders are wide bandwidth devices with bandwidths standard bandwidth of around 35 MHz to 7 MHz. A satellite transponder is rarely used fully by a single user (for example

More information

The Discussion of this exercise covers the following points:

The Discussion of this exercise covers the following points: Exercise 1-3 Satellite Payloads and Telemetry EXERCISE OBJECTIVE When you have completed this exercise, you will be familiar with the payload of a communications satellite and with the principles of TTC

More information

William Stallings Data and Computer Communications. Bab 4 Media Transmisi

William Stallings Data and Computer Communications. Bab 4 Media Transmisi William Stallings Data and Computer Communications Bab 4 Media Transmisi Overview Guided - wire Unguided - wireless Characteristics and quality determined by medium and signal For guided, the medium is

More information

Worst-Case GPS Constellation for Testing Navigation at Geosynchronous Orbit for GOES-R

Worst-Case GPS Constellation for Testing Navigation at Geosynchronous Orbit for GOES-R Worst-Case GPS Constellation for Testing Navigation at Geosynchronous Orbit for GOES-R Kristin Larson, Dave Gaylor, and Stephen Winkler Emergent Space Technologies and Lockheed Martin Space Systems 36

More information

Annex B: HEO Satellite Mission

Annex B: HEO Satellite Mission Annex B: HEO Satellite Mission Table of Content TABLE OF CONTENT...I 1. INTRODUCTION...1 1.1. General... 1 1.2. Response Guidelines... 1 2. BRAODBAND CAPACITY...2 2.1. Mission Overview... 2 2.1.1. HEO

More information

EEG 816: Radiowave Propagation 2009

EEG 816: Radiowave Propagation 2009 Student Matriculation No: Name: EEG 816: Radiowave Propagation 2009 Dr A Ogunsola This exam consists of 5 problems. The total number of pages is 5, including the cover page. You have 2.5 hours to solve

More information

ECE 6390: Satellite Communications and Navigation Systems TEST 1 (Fall 2004)

ECE 6390: Satellite Communications and Navigation Systems TEST 1 (Fall 2004) Name: GTID: ECE 6390: Satellite Communications and Navigation Systems TEST 1 (Fall 2004) Please read all instructions before continuing with the test. This is a closed notes, closed book, closed friend,

More information

Deep Space Communication The further you go, the harder it gets. D. Kanipe, Sept. 2013

Deep Space Communication The further you go, the harder it gets. D. Kanipe, Sept. 2013 Deep Space Communication The further you go, the harder it gets D. Kanipe, Sept. 2013 Deep Space Communication Introduction Obstacles: enormous distances, S/C mass and power limits International Telecommunications

More information

Satellite Communications

Satellite Communications Satellite Communications Part IV-Lecture 3-Satellite Link Design Lecturer Madeeha Owais 1 Learning Objectives Solving calculations of Link Budget for various satellite systems 2 Design of Satellite Communication

More information

Opportunistic Vehicular Networks by Satellite Links for Safety Applications

Opportunistic Vehicular Networks by Satellite Links for Safety Applications 1 Opportunistic Vehicular Networks by Satellite Links for Safety Applications A.M. Vegni, C. Vegni, and T.D.C. Little Outline 2 o o o Opportunistic Networking as traditional connectivity in VANETs. Limitation

More information

SATELLITE LINK DESIGN

SATELLITE LINK DESIGN 1 SATELLITE LINK DESIGN Networks and Communication Department Dr. Marwah Ahmed Outlines 2 Introduction Basic Transmission Theory System Noise Temperature and G/T Ratio Design of Downlinks Satellite Communication

More information

Mobile Communications Chapter 5: Satellite Systems

Mobile Communications Chapter 5: Satellite Systems Mobile Communications Chapter 5: Satellite Systems History Basics Localization Handover Routing Systems Prof. Dr.-Ing. Jochen Schiller, http://www.jochenschiller.de/ MC SS02 5.1 History of satellite communication

More information

SATELLITE COMMUNICATION

SATELLITE COMMUNICATION SATELLITE COMMUNICATION Monojit Mitra SATELLITE COMMUNICATION SATELLITE COMMUNICATION MONOJIT MITRA Assistant Professor Department of Electronics and Telecommunication Engineering Bengal Engineering and

More information

Satellite Link Design: A Tutorial

Satellite Link Design: A Tutorial International Journal of Electrical & Computer Sciences IJECS-IJENS Vol: 11 No: 04 1 Satellite Link Design: A Tutorial Aderemi A. Atayero, Matthew K. Luka and Adeyemi A. Alatishe Abstract The communication

More information

Direct Link Communication II: Wireless Media. Motivation

Direct Link Communication II: Wireless Media. Motivation Direct Link Communication II: Wireless Media Motivation WLAN explosion cellular telephony: 3G/4G cellular providers/telcos in the mix self-organization by citizens for local access large-scale hot spots:

More information

RECOMMENDATION ITU-R S.1557

RECOMMENDATION ITU-R S.1557 Rec. ITU-R S.1557 1 RECOMMENDATION ITU-R S.1557 Operational requirements and characteristics of fixed-satellite service systems operating in the 50/40 GHz bands for use in sharing studies between the fixed-satellite

More information

To study and describe RF interference in Fixed Service (FS) Satellite Systems, from a link budget perspective.

To study and describe RF interference in Fixed Service (FS) Satellite Systems, from a link budget perspective. Chapter 1 1.0 INTRODUCTION 1.1 OBJECTIVES To study and describe RF interference in Fixed Service (FS) Satellite Systems, from a link budget perspective. To consider two neighbouring satellite systems on

More information

Multimedia Communications Multimedia Technologies & Applications. Prof. Dr. Abdulmotaleb El Saddik

Multimedia Communications Multimedia Technologies & Applications. Prof. Dr. Abdulmotaleb El Saddik Multimedia Communications Multimedia Technologies & Applications Prof. Dr. Abdulmotaleb El Saddik Multimedia Communications Research Laboratory School of Information Technology and Engineering University

More information

Application of GNSS for the high orbit spacecraft navigation

Application of GNSS for the high orbit spacecraft navigation Application of GNSS for the high orbit spacecraft navigation JSC Academician M.F.Reshetnev Information Satellite Systems V. Kosenko, A. Grechkoseev, M. Sanzharov ICG-8 WG-B, Dubai, UAE November 2013 Objectives

More information

Keysight Technologies Precision Validation, Maintenance and Repair of Satellite Earth Stations FieldFox Handheld Analyzers

Keysight Technologies Precision Validation, Maintenance and Repair of Satellite Earth Stations FieldFox Handheld Analyzers Keysight Technologies Precision Validation, Maintenance and Repair of Satellite Earth Stations FieldFox Handheld Analyzers Application Note To assure maximum system uptime, routine maintenance and occasional

More information

Satellite Communications Testing

Satellite Communications Testing Satellite Communications Testing SATELLITE COMMUNICATIONS TESTING Traditionally, the satellite industry has relied on geosynchronous earth orbit (GEO) satellites that take years to build and require very

More information

Unit - 7 & 8 DBS, Satellite mobile and specialized services

Unit - 7 & 8 DBS, Satellite mobile and specialized services Unit - 7 & 8 DBS, Satellite mobile and specialized services Introduction, orbital spacing, power ratio, frequency and polarization, transponder capacity, bit rates for digital TV, satellite mobile services,

More information

ARE STAR CONTRIBUTION NETWORKS MORE BANDWIDTH EFFICIENT THAN MESH NETWORKS?

ARE STAR CONTRIBUTION NETWORKS MORE BANDWIDTH EFFICIENT THAN MESH NETWORKS? ARE STAR CONTRIBUTION NETWORKS MORE BANDWIDTH EFFICIENT THAN MESH NETWORKS? Dirk Breynaert, Newtec 04 Augustus 2005 Abstract The article is mainly investigating the satellite bandwidth efficiency of MESH

More information

O3b A different approach to Ka-band satellite system design and spectrum sharing

O3b A different approach to Ka-band satellite system design and spectrum sharing O3b A different approach to Ka-band satellite system design and spectrum sharing ITU Regional Seminar for RCC countries on Prospects for Use of the Ka-band by Satellite Communication Systems, Almaty, Kazakhstan

More information

VSAT Glossary of Terms

VSAT Glossary of Terms VSAT Glossary of Terms A Amplitude Modulation The base-band signal is caused to vary in amplitude or height of the carrier wave to create the desired information content. Amplifier A device used to boost

More information

Satellite Mobile Broadcasting Systems

Satellite Mobile Broadcasting Systems Satellite Mobile Broadcasting Systems Riccardo De Gaudenzi ESA Technical and Quality Management Directorate November 2008 1 The Satellite Digital Mobile Broadcasting Scenario November 2008 2 US SDARS Systems

More information

ARTICLE 22. Space services 1

ARTICLE 22. Space services 1 CHAPTER VI Provisions for services and stations RR22-1 ARTICLE 22 Space services 1 Section I Cessation of emissions 22.1 1 Space stations shall be fitted with devices to ensure immediate cessation of their

More information

RADIOMETRIC TRACKING. Space Navigation

RADIOMETRIC TRACKING. Space Navigation RADIOMETRIC TRACKING Space Navigation Space Navigation Elements SC orbit determination Knowledge and prediction of SC position & velocity SC flight path control Firing the attitude control thrusters to

More information

Data Communication Prof. Ajit Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture No # 6 Unguided Media

Data Communication Prof. Ajit Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture No # 6 Unguided Media Data Communication Prof. Ajit Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture No # 6 Unguided Media Hello and welcome to today s lecture on unguided media.

More information

RADIOMETRIC TRACKING. Space Navigation

RADIOMETRIC TRACKING. Space Navigation RADIOMETRIC TRACKING Space Navigation October 24, 2016 D. Kanipe Space Navigation Elements SC orbit determination Knowledge and prediction of SC position & velocity SC flight path control Firing the attitude

More information

A Practical Introductory Guide on Using Satellite Technology for Communications

A Practical Introductory Guide on Using Satellite Technology for Communications A Practical Introductory Guide on Using Satellite Technology for Communications Executive Summary Satellites can provide global, ubiquitous and multipoint communications. Not surprisingly, satellite technology

More information

ECE 6390: Satellite Communications and Navigation Systems TEST 1 (Fall 2008)

ECE 6390: Satellite Communications and Navigation Systems TEST 1 (Fall 2008) Name: GTID: ECE 6390: Satellite Communications and Navigation Systems TEST 1 (Fall 2008) Please read all instructions before continuing with the test. This is a closed notes, closed book, closed friend,

More information

Delivering More for Less Where You Want It, When You Want It!

Delivering More for Less Where You Want It, When You Want It! Delivering More for Less Where You Want It, When You Want It! O3b Networks Government Solutions Military Communications and Information Systems Conference (MIlCis) 2013 O3b Networks at a Glance What we

More information

Data and Computer Communications Chapter 4 Transmission Media

Data and Computer Communications Chapter 4 Transmission Media Data and Computer Communications Chapter 4 Transmission Media Ninth Edition by William Stallings Data and Computer Communications, Ninth Edition by William Stallings, (c) Pearson Education - Prentice Hall,

More information

Satellite Link Budget 6/10/5244-1

Satellite Link Budget 6/10/5244-1 Satellite Link Budget 6/10/5244-1 Link Budgets This will provide an overview of the information that is required to perform a link budget and their impact on the Communication link Link Budget tool Has

More information

Earth-Stations. Performance Requirements

Earth-Stations. Performance Requirements AMOS-Satellites System Earth-Stations Performance Requirements Version 4.33 August 2013 1 TABLE OF CONTENTS GENERAL INFORMATION... 3 1. GENERAL... 4 2. ANTENNA... 5 2.1. TRANSMIT SIDE-LOBES (MANDATORY)...

More information

ITU/ITSO Workshop on Satellite Communications, AFRALTI, Nairobi Kenya, 8-12, August, Link Budget Analysis

ITU/ITSO Workshop on Satellite Communications, AFRALTI, Nairobi Kenya, 8-12, August, Link Budget Analysis ITU/ITSO Workshop on Satellite Communications, AFRALTI, Nairobi Kenya, 8-12, August, 2016 Link Budget Analysis Presenter: E. Kasule Musisi ITSO Consultant Email: kasule@datafundi.com Cell: +256 772 783

More information

Introduction to Amateur Radio Satellites

Introduction to Amateur Radio Satellites Rick Fletcher W7YP What is an OSCAR? Orbiting Satellite Carrying Amateur Radio Originally built by Project OSCAR members in garages in Silicon Valley Now built/funded by members of AMSAT and its affiliates

More information

Chapter 4: Practical Communication Systems. 18/09/2016 Nurul/DEE 3413/Practical Com System 1

Chapter 4: Practical Communication Systems. 18/09/2016 Nurul/DEE 3413/Practical Com System 1 Chapter 4: Practical Communication Systems 18/09/2016 Nurul/DEE 3413/Practical Com System 1 Outline Fibre Optic Communication System Telephone System Radio Communication System Satellite Communication

More information

A Practical Introductory Guide on Using Satellite Technology for Communications

A Practical Introductory Guide on Using Satellite Technology for Communications A Practical Introductory Guide on Using Satellite Technology for Communications 17/12/5941-Satellite Technology Executive Summary Satellites can provide global, ubiquitous and multipoint communications.

More information

Muscle Shoals Amateur Radio Club. Extra License Class Training Session 2

Muscle Shoals Amateur Radio Club. Extra License Class Training Session 2 Muscle Shoals Amateur Radio Club Extra License Class Training Session 2 Review Test Pool Question Review Questions? Syllabus Week 1 9/4/18: Commission s Rules (6 question areas) Week 2 9/11/18: Operating

More information

Satellite RF/Microwave. Indoor Converters Transceivers SSPAs

Satellite RF/Microwave. Indoor Converters Transceivers SSPAs Satellite RF/Microwave BUCs Indoor Converters Transceivers SSPAs A leader in the design and manufacture of satellite communications equipment Providing complete solutions for satellite communication based

More information

Satisfying growth demands for offshore communications

Satisfying growth demands for offshore communications Satisfying growth demands for offshore communications Michael Carter, Sales Director Network and Data Services GVF Oil & Gas Communications Europe 2014, Aberdeen Overview 1. Who we are 2. Key drivers for

More information

Dear Sir, Regards. Dr Mike Willis. Head of Spectrum Policy, UK Space Agency

Dear Sir, Regards. Dr Mike Willis. Head of Spectrum Policy, UK Space Agency Dear Sir, Please find below the UK Space Agency response to the fixed links spectrum review consultation. As there are a very large number of questions with many not immediately relevant to satellite systems,

More information

Exploring Trends in Technology and Testing in Satellite Communications

Exploring Trends in Technology and Testing in Satellite Communications Exploring Trends in Technology and Testing in Satellite Communications Aerospace Defense Symposium Giuseppe Savoia Keysight Technologies Agenda Page 2 Evolving military and commercial satellite communications

More information

QUESTION BANK SOLUTION. UNIT 1 Overview of Satellite Systems

QUESTION BANK SOLUTION. UNIT 1 Overview of Satellite Systems QUESTION BANK SOLUTION UNIT 1 Overview of Satellite Systems 1. Explain briefly various services provided by a satellite [ 06, May/June 2010] Large areas of the earth are visible from the satellite, thus

More information

RECOMMENDATION ITU-R BO.1834*

RECOMMENDATION ITU-R BO.1834* Rec. ITU-R BO.1834 1 RECOMMENDATION ITU-R BO.1834* Coordination between geostationary-satellite orbit fixed-satellite service networks and broadcasting-satellite service networks in the band 17.3-17.8

More information

Lecture 1 Introduction

Lecture 1 Introduction Advanced Electronic Communication Systems Lecture 1 Introduction Dr.Eng. Basem ElHalawany Title Lecturer: Lecturer Webpage: Room/Email Teaching Assistant (TA) Course Webpage References Course Info Advanced

More information

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/9/2017 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue

More information

Digital Communications Theory. Phil Horkin/AF7GY Satellite Communications Consultant

Digital Communications Theory. Phil Horkin/AF7GY Satellite Communications Consultant Digital Communications Theory Phil Horkin/AF7GY Satellite Communications Consultant AF7GY@arrl.net Overview Sending voice or data over a constrained channel is a balancing act trading many communication

More information

Principles of Two Way Time & Frequency Transfer

Principles of Two Way Time & Frequency Transfer Principles of Two Way Time & Frequency Transfer Amitava Sen Gupta Time & Frequency Division National Physical Laboratory, India (NPLI) (APMP TCTF Workshop 2014) (Daejeon, South Korea Sep. 2014) 1 Basic

More information

Modelling of Transmitter & Receiver for VSAT Communication System

Modelling of Transmitter & Receiver for VSAT Communication System Research Paper American Journal of Engineering Research (AJER) e-issn : 2320-0847 p-issn : 2320-0936 Volume-04, Issue-02, pp-79-86 www.ajer.org Open Access Modelling of Transmitter & Receiver for VSAT

More information

ZUKU DTH INSTALLER TRAINING MANUAL

ZUKU DTH INSTALLER TRAINING MANUAL ZUKU DTH INSTALLER TRAINING MANUAL CONTENTS - 27. WHAT IS A REFLECTOR? - 28. REFLECTOR SIZE - 29. FACTORS AFFECTING GAIN PAGE 20 PAGE 20 PAGE 21-30. BEAM WIDTH PAGE 21-31. CARRIER TO NOISE RATIO PAGE 21-32.

More information

Satellite Orbits, Coverage, and Antenna Alignment

Satellite Orbits, Coverage, and Antenna Alignment Telecommunications Satellite Communications Satellite Orbits, Coverage, and Antenna Alignment Courseware Sample 87768-F0 A TELECOMMUNICATIONS SATELLITE COMMUNICATIONS SATELLITE ORBITS, COVERAGE, AND

More information

IPSTAR Project. Shin Satellite Public Company Limited 19

IPSTAR Project. Shin Satellite Public Company Limited 19 IPSTAR Project This is SATTEL s next satellite project to be launched in 2004 and will cover Asia and Australia. The region is known for its fast-growing telecommunications business. The Company is currently

More information