Application of satellite communication , Computer Networking

Application of Satellite Communication started with the installation and commissioning of STD- “B” Earth Station having 11m diameter antenna in 1982, Initially with to only three carriers. Gradually circuits in this Earth Station started growing. This was the first gateway for international traffic at that time. Later on V-Sat hub also added to provide rural connectivity where establishing micro-wave or optical-fibre network is not possible. . Nepal is a mountainous country where 75% of the areas are geographically isolated and inaccessible, making it very difficult to provide communication systems. Government of Nepal has the policy to connect each and every village development committees (VDC) and provide reliable communication. It has raised very enthusiastic and ambitious national slogan “Every hand should have mobile and every home should have internet”. To achieve this goal, across the geographically inaccessible areas, Sagarmatha Earth station has played a vital role by enabling Satellite based Communication Systems. Sagarmatha Earth station is also working as a gateway for international traffic which has 37 carriers of 2 Mbps link, directly connected with 18 countries and 12 operators with about 4587 international voice circuits. Total 5 different systems from this Earth Station are operating for various types of services on 24*7 basis. So reliability of this earth station is very important. A short description of all the systems is given below:

S.No

Band

Antenna

Size

Installed Date

Services

1

C

11 m

 

 

 

16.4 m

 

 

 

9 m

1982

 

 

 

1996

 

 

 

2001

International IDR carrier

International IDR carrier,

 

Occasional TV, Internet down link

 

STM    V-Sat,    R-Sat,    CDMA GSM back haul

2

Ku

6.4 m

2004

Back haul for CDMA & GSM

for  rural  communication,  F1

Station      for      rural      voice communication, R-SAT

3

Ku

6.4

2009

Back haul for CDMA, GSM, Voice     &     Data     for     rural

telephony

4

Ku

1.2

2009

Test terminal for remote site

for voice

5

Ku

1.8

2009

Test terminal for CDMA back

haul link

6

Ku

1.8

2009

Test  terminal  for  GSM  back haul link

Total No of  antennas=8

Posted Date: 9/7/2012 6:39:09 AM | Location : United States







Related Discussions:- Application of satellite communication , Assignment Help, Ask Question on Application of satellite communication , Get Answer, Expert's Help, Application of satellite communication Discussions

Write discussion on Application of satellite communication
Your posts are moderated
Related Questions
NICs AND NETWORK HARDWARE:  NIC is create for one kind of physical network. For example Ethernet interface may not be needed with token ring and similar ATM interface cannot b

QUESTION (a) Figure 3 below shows a reference model of the Foundations of Intelligent Physical Agents (FIPA). Explain the roles of the following components (i) Agent platfor

Compute the shortest path from t to all network nodes.

Some multiple WAN methods are defined below: ARPANET: It start in 1960's. It was operated by Advanced Research Project Agency, which is a company of US defense department.

Q. What is Domain Names ? - Full domain name is a sequence of labels separated by dots (.) - Fully competent domain name (FQDN) contains the full name of a host cis.usouthal

importance of mail server ,proxy server ,modem ,intranet and web site

Transition Phases A PPP connection goes through phases  which can be  shown in a transition phase . Dead: In  the dead phase  the link is not  being used. There is  no ac

Explain Logical Ring Physical Star topology for Token-Passing Standard. It is definite that any break in the ring at any point will interrupt communications for all machines.

Extranets can also be utilized to link an intranet to the Internet in order that remote offsite access can be built into a company's intranet through an authorized individual. It c

Explain the transport layer in detail Transport Layer: Transport layer ensures and controls the end-to-end integrity of data message propagated via the network  amid two devic