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Linking the live WildCam Africa Internet video camera
from one of the most remote locations in southern Africa
to a satellite hovering 22,500 miles (36,200 kilometers)
above the Earth’s equator was the easy part. The
challenge was how to keep baboons from messing with the
camera, prevent insects from slithering inside the
computer, and protect the whole setup from curious
elephants. National Geographic spent weeks
looking for someone who had done it before. Trouble was,
nobody had. But Cameron Murie came close enough.
Murie, who calls himself a “geek in the bush,”
operates a computer and information system business in
Musina, South Africa. He is also responsible for
designing a radio-based computer network linking the
various camps at Mashatu Game Reserve. “Things that are
commonplace in an urban environment are difficult to
achieve in the bush,” says Murie. “A project like
WildCam—with a satellite hook-up that provides streaming
video—has never been done in this area. Getting a good
quality connection here is expensive and challenging at
best.”
 The heart of the system is a
desktop computer that processes images from a
high-powered wide-angle video camera. The
high-resolution camera is on all the time, ready to
capture any movement it sees and record 20 to 25 images
a second. That’s fast enough to display the realistic
movement of the animals without the jerkiness that
sometimes accompanies Web broadcasts.
 Enlarge
A switching device that
sends the video data to a network router is attached to
the computer. The router transfers the data to an
antenna pointed north (see figure 1 in illustration)
where a satellite picks up the signal and relays it to a
server (figure 2). From there, the video is streamed to
the Internet through National Geographic Society in
Washington, D.C. (figure 3). “It’s normal technology,
but it wouldn't be possible without a satellite link,”
says Murie. “There’s no alternative way to the Internet
from here.”
The link to the satellite was the only way to obtain
enough bandwidth to carry the huge data stream required
by the video array. “The network is not your standard
off-the-shelf setup,” says David Horacek, president of
Enterprise Satellite Solutions in Chandler, Arizona.
“It’s a dedicated bandwidth connection from the pond to
the satellite to a terminal hub in Sweden. From there,
it goes to the Internet. It’s point to point. They only
communicate with each other. That’s why we can provide
this high-quality live experience.”
 A curious creature, however, could
interrupt all the electronic wizardry. The perimeter of
the array is fortified with high-strength wire and
electrified fencing, while the computer and camera
apparatus are secured in tight cabinetry. It’s harmless
to the wildlife and discourages their attempts to get
in. But even with protection, anything can happen. “You
have to animal- and insect-proof everything,” says
Murie. “Otherwise, it’s a real problem. In this place if
you get a bug in the system, it really is a
bug.”
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