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Sharing and cooperation in geo-information technology
Aziz, T. Lukman

International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 6. Bandung-lndonesia 1999
Andy Revara/ Eka Indarto
Satellite Project Division of PT. Telkom
This paper is presented for the point of view of an alternative transport for distance learning via satellite. The use of communication
satellite to provide the distance learning network is the most popular way because its wide coverage so that can overcome the burden
ot distance and geographies, especially in Indonesia as a big and an archipelago country.
More information on the characteristic of TELKOM's satellite named Telkom-1 is presented in this paper and also its comparison to
its predecessors. The more powerful satellite makes it possible to have smaller dish, as a part of a Terminal, which encompasses on
much lower cost to build the network. As almost all of the office equipped with the computers, the use of this network wiped-out the
cost to buy a computer.
Telkomnet-Turbo which comprises of antenna plus LNB and PCI card is an alternative to provide distance learning network with
high rate asymmetric access up to 400 kbps. This rate is fast enough to pulled-out the information from a server compared access via
local cable.
Technology has been used in education beginning with
instructional radio, film, and television starting in the early
1960s. Early versions of those media provided low resolution
images, since the technology of recording electronic signals on
moving wire or magnetic tape was slow to develop. The
development and mass production of integrated circuit chips
gives many advantages such as lower prices, better quality and
reliability for communication systems. In the early 1990s the
telecommunication-based education just starting to realize its
potential to use broadband communication, more powerful PCs,
and digital videos. The satellite is the most popular solution to
provide such services due to its big coverage so that it can
overcome the burden of distance and geographies.
PT. Telekomunikasi Indonesia,Tbk (TELKOM), as a stated-
owned company that provide domestic telecommunication in
Indonesia, began the program of distance learning in 1993 using
combination of analog TV 36 MHz via TELKOM's satellite
and dial-up lines. Due to the improvement on digital equipment
and optimization of transponder usage, the application of analog
TV has been shifted to digital TV since 1995. There are 3 kind
of services related to distance learning that we have as follows :
Indonet is one of Telkom facilities to conduct broadcast
message from Bandung to all Telkom's branch offices in
Indonesia via satellite. Studio and transmit equipment are
located in TELKOM's Education Center in Bandung. The
facility is used to provide any information for internal
purposes including company policies, news, and tutorial.
Telecast is designed to provide a link to all operational
branches for the purposes of increasing on employee's
knowledge and skill, coordination channel, socialization of
operational procedures, and to exchange information among
branches. Studio and transmit equipment are located in
TELKOM's Master Control Station in Cibinong, about 30
km from Jakarta.
Telemedicine is the application related to medical term. The
user of TELKOM's network for this is University of
Indonesia, which conduct the tutorial and seminar from
Jakarta to other cities.
Nowadays, TELKOM through his school (Sekolah Tinggi
Teknologi Telkom) has also develop web-based training which
is still in development and trial process. It is predicted that this
is going to be launched in June 1999. In addition to that, it is
actively to do the digitization of analog video so that the archive
took only small storing media and can be accessed faster.
TELKOM has operated 2 generations of Palapa, which are
Palapa A and B generations, starting from 1976. All of Palapa
A generation and two out of four of Palapa B generation has
been de-orbited to the grave-yard, and the remaining two of
Palapa B generations named Palapa B2R and Palapa B4 are still
in operation.
The new satellite called Telkom-1 will be launched in early
June 1999 to replace the existing Palapa B2R satellite. Telkom-
1 has much more powerful and capacity compared to its
predecessors. Table 1 shows the major parameters
distinguishing different generation of PT TELKOM’s satellites.