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#Post#: 174--------------------------------------------------
How Airplane Wi-Fi Works? How Wi-Fi works in an Aeroplane
By: magbytes120 Date: June 16, 2017, 1:43 pm
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How Airplane Wi-Fi Works?
Have you ever wondered how actually the Wi-Fi in an airplane
works? Traveling in the airplane has been a phone-free zone for
a lot of years. We have to turn off our electronic devices and
rely instead on movies and in-flight magazines for fun. But
times have changed.
Airplanes have tried to make flying a little more enjoyable by
offering us in-flight wireless internet, but have you ever
wondered how exactly does Wi-Fi work when you are on an
airplane?
When Wi-Fi first became a thing in the airplane in the early to
mid-2000s, it usually worked by transmitting an internet
connection to a transponder attached to the plane using
satellites, similar to how folks in rural areas without cable
DSL or fiber infrastructure use satellite dishes to get online.
Even in the present days, those old systems are still in use.
There is a system named air-to-ground transmission or also
called as ATG. These are similar to cell phone towers. These
have the benefit of being a cheaper than satellite internet, but
they work over land, and there are few disadvantages not only do
these towers suffer from geographical restrictions, but the
service they provide can be painfully slow as anyone who’s ever
tried to stream anything on a plane probably knows.
The ATG systems don’t offer speeds that are high. The speed
would be somewhere around five megabytes per second, but the
satellite internet is faster with speeds of up to 50 megabytes
per second. There are Ku band, the same range of spectrum used
to be satellite TV which we use in our house. With many people
flying on airliner, a 50 megabytes connection can be very slow
if lots of passengers are connected at the same time. The tech
we have available requires airlines to get large antennas onto
their planes; these will be heavy enough to have a heavy effect
on the plane’s weight and aerodynamics which leads to higher
fuel costs that are passed along to you.
Nowadays, major air carriers are now starting to install cob
Ka-band satellite antennas which have the potential due to their
higher bandwidth to reach hundreds of megabytes per second,
enough for streaming even on a full plane where lots of people
are trying to connect.
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