|
Satellite
e-Learning
The ability to transmit an actual classroom lesson to remote
locations is what satellite e-learning is all about. The remote
classroom can be either an individual's desktop computer or
another (offsite) classroom full of students.
Satellite e-learning provides a synchronous learning
environment. Sometimes referred to as BTV/IP (Business
Television/Internet Protocol), satellite e-learning has brought
distributed media into the 21st century.
Satellite e-learning utilizes internet protocol (IP) for
networking and distribution. IP makes it possible to utilize
high bandwidths for video streaming because it bypasses the
wide area network.
Students located at remote locations are able to communicate
with the instructor via audio teleconferencing or by using a
combination of audio and keypad technology.
With satellite e-learning, students can participate in class
along with the instructor and the other students. The only real
difference is that some students are not sitting in the same
location as the instructor. With satellite e-learning,
instructors are able to incorporate all of the different media
into their lessons.
Transmission to remote students is consistent and occurs faster
than other methods of transmission. Satellite e-learning makes
synchronous oral interaction possible which can greatly benefit
students since they are able to ask questions and receive
answers in moments.
Satellite e-learning utilizes internet protocol which bypasses
wide area networks and the Internet. What this means in simple
terms is that the problems often associated with bandwidth
(distorted images, slow transmission) are eliminated.
Very large-sized web-based training modules and
multi-media-rich transmissions can easily be transmitted using
satellite technology. There is virtually no limit to the number
of remote locations that can receive satellite transmission,
provided the remote locations maintain the necessary
equipment.
The technology and infrastructure needed to support e-learning
is extremely expensive. The infrastructure also requires a high
degree of maintenance which adds to the overall costs.
Logistically, satellite e-learning can be difficult to set up.
A designated classroom outfitted with the equipment needed to
broadcast classroom instruction must be identified.
In addition to the equipment, an individual trained in the area
of broadcasting must always be present to operate the equipment
and prepare the broadcast. Instructors also need training in
this method of instruction.
Satellite downlinks, which are the locations that receive the
satellite broadcast, also must be outfitted with the equipment
necessary to receive the broadcast. Because the transmission
will travel across the local area network before it can be
received by the remote location, it is at this point that
recipients sometimes experience problems.
Another limitation of satellite e-learning is that it doesn't
allow for flexibility in scheduling. Students do not have the
option of learning at a time that is convenient. They must
participate in the satellite broadcast as it actually is taking
place.
This type of instructional media is perfect for role playing,
guided and/or panel discussions, simulations, demonstrations,
case studies, traditional lecture-style narration,
brainstorming, practicing and drilling.
|