The Bangabandhu Satellite-1 is the first Bangladeshi geostationary communications and Broadcasting Satellite. It was manufactured by Thales Alenia Space and launched on 11 May 2018.[1] The project is being implemented by Bangladesh Telecommunication Regulatory Commission (BTRC) and was the first payload launched by a Falcon 9 Block 5 rocket of SpaceX.[3] Bangladesh Government formed a Government owned Bangladesh Communication Satellite Company Limited, BCSCL with the aim to operate the Bangabandhu Satellite-1.[4] Bangabandhu-1 launched from Kennedy Space Center on Merritt Island, Florida, USA and utilizes ground control stations built by Thales Alenia Space with its partner Spectra[disambiguation needed] in Betbunia, and Gazipur. The satellite is based on the highly secured and reliable Spacebus-4000B2 platform and currently located at longitude 119.09°E.

1. Presentation
BANGABANDHU-1
SATELLITE
Group Earth
Welcometothe

2. FIRSTUP
CONSULTANTS
Submitted To: INTRODUCING GROUPMEMBER
2
Md. Ashiqur Rahman
Sr. Lecturer
Department of Computer Science & Engineering
World University of Bangladesh
Sabbir Ahmed Roll- 1874
Rubel Rana Roll- 1850
Rafsan Kabir Roll- 1875
Md. Ekramul Hasan Roll- 1721
Sharmin Akter Roll- 1800
Group Earth
Page

3. FIRSTUP
CONSULTANTS
Presentation Outline
3Page
Page Title
1 Bangabandhu-1 satellite
2 Introduce group member
3 Presentation outline
4 What is Satellite
5 Orbital Classification
6 Satellite Communication
7 Introduction of Bangabandhu Satellite 1
8 Bangabandhu Satellite-1 Mission
9 Technical Information About Bangabandhu Satellite-1
10 Bangabandhu Satellite Launching time(Video)
11 Multiple access in satellite networks
12 block diagram of satellite system
13 satellite communication earth station
14 Bangabandhu-1 to open doors for massive opportunities
15 Bangabandhu-1 to open doors for massive opportunities
16 Bangabandhu-1 to open doors for massive opportunities
17 advantage of satellite communication
18 Disadvantage of satellite communication
19 Bangabandhu satellite project wins int'l award
20 Do you have any question, Please?
21 Thank you so much for being with us up to now.

4. FIRSTUP
CONSULTANTS
WHAT IS A SATELLITE?
A satellite is an object that moves around a larger object. Earth is a
satellite because it moves around the sun. The moon is a satellite
because it moves around Earth. Earth and the moon are called
"natural" satellites.
But usually when someone says "satellite," they are talking about a
"man-made" satellite. Man-made satellites are machines made by
people. These machines are launched into space and orbit Earth or
another body in space.
There are thousands of man-made satellites. Some take pictures of
our planet. These pictures help scientists learn about Earth, the solar
system and the universe. Other satellites send TV signals and phone
calls around the world.
4Page
Figure: Satellite

5. FIRSTUP
CONSULTANTS
ORBITAL CLASSIFICATION
1. Low-Earth-Orbit (LEO)
2. Medium-Earth-Orbit (MEO)
3. Geostationary Orbit (GEO)
4. Highly Elliptical Orbit (HEO)
5Page

6. FIRSTUP
CONSULTANTS
SATELLITE COMMUNICATION
Two Stations on Earth want to communicate through
radio broadcast but are too far away to use
conventional means.
The two stations can use a satellite as a relay station for
their communication
One Earth Station sends a transmission to the satellite.
This is called a Uplink.
The satellite Transponder converts the signal and sends
it down to the second earth station. This is called a
Downlink.
6Page
Figure: Satellite Communication

7. FIRSTUP
CONSULTANTS
INTRODUCTION OF BANGABANDHU SATELLITE 1
Bangladesh Communication Satellite Company
Limited was established on 15 August 2017.
Bangabandhu Communication satellite is the first
satellite of Bangladesh.
The Bangabandhu Satellite-1 (BANGABANDHUSAT-
1 or BS-1) is the first Bangladeshi geostationary
communications and Broadcasting Satellite.
It was launched on 11 May 2018. The project is being
implemented by Bangladesh Telecommunication
Regulatory Commission (BTRC) and was the first
payload launched by a Falcon 9 Block 5 rocket of
SpaceX.
7Page
Figure: Bangabandhu Satellite

8. FIRSTUP
CONSULTANTS
BANGABANDHU SATELLITE-1 MISSION
Mission Overview
SpaceX is targeting launch of Bangabandhu Satellite-1 on Friday, May 11 from
Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center, Florida.
The launch window opens at 4:14 p.m. EDT, or 20:14 UTC, and closes at
6:21p.m. EDT or 22:21 UTC. Bangabandhu Satellite-1 will be deployed into a
geostationary transfer orbit (GTO) approximately 33 minutes after launch.
A backup launch window opens on Saturday, May 12 at 4:15 p.m. EDT, or
20:15 UTC, and closes at 6:21 p.m. EDT, or 22:21 UTC.
The Bangabandhu Satellite-1 mission will be the first to utilize Falcon 9 Block
5, the final substantial upgrade to SpaceX’s Falcon 9 launch vehicle. Falcon 9
Block 5 is designed to be capable of 10 or more flights with very limited
refurbishment as SpaceX continues to strive for rapid reusability and extremely
high reliability.
Following stage separation, SpaceX will attempt to land Falcon 9’s first stage
on the “Of Course I Still Love You” droneship, which will be stationed in the
Atlantic Ocean.
8Page
Figure: Official SpaceX Bangabandhu Satellite-1
mission patch

9. FIRSTUP
CONSULTANTS
TECHNICAL INFORMATIONABOUT BANGABANDHU SATELLITE-1
Orbital Position- 119.1° E
Transponders- Total 40 (14 C-band, 26 Ku-band)
Platform- SPACEBUS 4000 B2
Solar Array- 3-panels per wing with GaAs cells
Batteries- Li-Ion Mono-battery
Propulsion- Full chemical
Launch Mass- > 3600 Kg on Falcon 9
Mission Life- Minimum 15 Years
Design Life- 18 years
9
Figure: Orbital Position
Page

10. FIRSTUP
CONSULTANTS
BANGABANDHU SATELLITE LAUNCHING TIME(VIDEO)
10
Figure: Video capture from SpaceX
Page

11. FIRSTUP
CONSULTANTS
MULTIPLEACCESS INSATELLITE NETWORKS
Basic Multiple Access Schemes:
Frequency Division bandwidth:
- Allows smaller size antennas
- Not flexible, not suitable for dynamic bandwidth allocation
Time Division bandwidth:
- Requires high transmission power and large antenna
- Highly flexible, suitable for dynamic bandwidth allocation
- Fits well in all-digital network management
- Synchronisation is a problem
- Better use of downlink power
Code division Bandwidth:
- Synchronisation is only an end-to-end problem
- Popular in military applications due its resistance against jamming
- Resistance against multi-path and frequency- selective fading
- Popular in cellular networks
11Page

12. FIRSTUP
CONSULTANTS
BLOCK DIAGRAM OFSATELLITE SYSTEM
The uplink frequencies (5.9---6.4 GHZ) are used
for TIN from the earth station to the satellite and
down link frequencies (3.7-4.2GHZ).
The above frequencies are used for TIN from the
satellite to the earth station the uplink frequencies
are converted to lower frequencies by the mixer
and local Osc, the com satellite acts as a repeater
station it receives the signal, amplifiers it and then
transmitted over a next frequencies to avoid
interference between the uplink signal and down
link , the two way communication is established
with the help of transponder a com satellite has
multi transponder per satellite has in creased over
the year ,a satellite with 2 transponder can support
a signal T.V channel or 240 telephone lines a
satellite with 48 transponder can accommodate
4000T.P CKTS and 2 TV channels now-a-days in
satellite using a digital tech , due to which One
satellite can handle 120,000 T.P4 channels and
more then 500 T.V channels.
12Page
Figure: Block diagram of Satellite system

13. FIRSTUP
CONSULTANTS
SATELLITE COMMUNICATION EARTH STATION
The equipment used in satellite earth station are
shown in fig the earth station consist of a dish
antenna transmitter which can transmit a high
frequencies (5.9-6.4GHZ) micro wave signals,
some earth stations also called ground station ,
which can transmit and receive the signals while
others can only receive signals.
A high directive and a high gain antenna is
necessary at the earth station , because the losses
over the long TIN path is very high the signals
power reaching back to the earth station from
satellite is very small . there fore at receiving end a
parabolic dish antenna with 61m diameter provides
a high gain and thus amplify the signal power , it is
important to have a low noise amplifier before the
mixer stage in the receiver C,K,T at the satellite
earth terminal.
13Page
Figure: satellite communication earth station

14. FIRSTUP
CONSULTANTS
BANGABANDHU-1 TO OPEN DOORS FOR MASSIVE OPPORTUNITIES
Bangladesh becomes a member of the exclusive club of
satellite-owning countries as its first commercial satellite,
opening the doors for huge opportunities.
Experts, policymakers, and people related with the country’s
most sophisticated project said this satellite will give extra
space to the digitization process and at the same time, the
country will earn a huge amount of respect from foreign
nations after its successful journey.
They said the country's first geostationary communication
satellite will firstly help the expansion of internet and
telecommunication services in remote and rugged areas
which still remained beyond the coverage.
14Page
Figure: Bangabandhu-1 Satellite

15. FIRSTUP
CONSULTANTS
BANGABANDHU-1 TO OPEN DOORS FOR MASSIVE OPPORTUNITIES
Bangladesh’s annual expenditure for satellite connectivity is
$14m. The cost is due to renting bandwidth from foreign
operators. After the BS-1 launch, it would be unnecessary.
Private TV channel operators and Direct-to-Home (DTH) as
alternative of cable television service providers will be the
main consumers of the satellite, according to officials.
The weather department, as well as the defense sector, will
also benefit from the satellite.
The BS-1 will help to bring uninterrupted telecommunication
during disasters like cyclone or tornado.
15Page
Figure: Bangabandhu-1 Satellite

16. FIRSTUP
CONSULTANTS
BANGABANDHU-1 TO OPEN DOORS FOR MASSIVE OPPORTUNITIES
Faster broadcasting system
Direct-to-Home services always provide faster access to
worldwide television entertainment.
Currently, there are only two companies that have a license
from the government. These are Beximco and Buyer Media
Limited.
Before, the operators conducted a monopoly business. Now
there will be a big change and easier, faster access to global
TV entertainment will be ensured.
The satellite will make video distribution easier too. The
broadcasters can effortlessly distribute their content to
intermediaries like cable TV network operators or re-
broadcasters like DTH operators.
16Page
Figure: Bangabandhu-1 Satellite

17. FIRSTUP
CONSULTANTS
ADVANTAGE OF SATELLITE COMMUNICATION
1. The satellite communication is very helpful for the people staying in remote
areas.
2. The satellite communication services are very helpful for the department of
defense, where the people on the fields cannot use the wired service every time.
3. The satellite communication provides with the status of weather.
4. Satellite communication services being so portable are very easy to install and
user-friendly as well.
17Page

18. FIRSTUP
CONSULTANTS
DISADVANTAGE OF SATELLITE COMMUNICATION
1. Launching satellites into orbit is costly.
2. Satellite bandwidth is gradually becoming used up.
3. There are a larger propagation delay and noise interference in
satellite communication
4. Impossibility to repair and maintain
18Page

19. FIRSTUP
CONSULTANTS
BANGABANDHU SATELLITE PROJECT WINS INT'LAWARD
Bangabandhu Satellite Project has
got the prestigious “Recognition of
Excellence” award from the
International Telecommunication
Union (ITU).
State Minister for Post and
Telecommunications Tarana Halim
received the award on behalf of the
government at the concluding
ceremony of the four-day ITU
Telecom World 2016 in Bangkok.
19Page
Picture: State Minister Tarana Halim received the award

20. FIRSTUP
CONSULTANTS 20
Any Question ?
Please
Page

21. FIRSTUP
CONSULTANTS 21
Thank you so much for
being with us up to now.
Page