WEBVTT - How does satellite Internet work?

0:00:00.040 --> 0:00:02.920
<v Speaker 1>Audible dot com is the leading provider of digital audio

0:00:02.960 --> 0:00:05.800
<v Speaker 1>books and spoken word, with over one thousand titles to

0:00:05.880 --> 0:00:09.840
<v Speaker 1>choose from. Audible lets you listen to your favorite books anywhere, anytime.

0:00:10.039 --> 0:00:13.119
<v Speaker 1>Go to audible podcast dot com slash stuff brain to

0:00:13.119 --> 0:00:15.400
<v Speaker 1>get a free audio book download of your choice when

0:00:15.400 --> 0:00:18.560
<v Speaker 1>you sign up today. Welcome to brain Stuff from how

0:00:18.640 --> 0:00:30.000
<v Speaker 1>stuff works dot com where smart happens. Him Marshall Brain

0:00:30.080 --> 0:00:35.280
<v Speaker 1>with today's question, how does satellite internet operate? Let's imagine

0:00:35.320 --> 0:00:38.320
<v Speaker 1>that you live way out in the middle of nowhere,

0:00:38.720 --> 0:00:42.599
<v Speaker 1>or you're working at a site that's completely disconnected from

0:00:42.640 --> 0:00:44.519
<v Speaker 1>the rest of the world, say in the middle of

0:00:44.560 --> 0:00:49.279
<v Speaker 1>a giant national park, or a desert or a massive

0:00:49.400 --> 0:00:52.839
<v Speaker 1>forest or something like that. How do you access the

0:00:52.880 --> 0:00:56.880
<v Speaker 1>Internet in a situation like this? There are no cell

0:00:56.960 --> 0:01:00.960
<v Speaker 1>phone towers for hundreds of miles. There's no DSL lines

0:01:01.080 --> 0:01:04.400
<v Speaker 1>or cable access running along the street. Really, your only

0:01:04.520 --> 0:01:07.600
<v Speaker 1>option is to look up in the sky and reach

0:01:07.720 --> 0:01:12.000
<v Speaker 1>for a satellite. In fact, satellite internet access is really

0:01:12.040 --> 0:01:16.000
<v Speaker 1>your only option. It's ideal for rural internet users who

0:01:16.000 --> 0:01:20.639
<v Speaker 1>want broadband access, people camping in national forests, and anyone

0:01:20.680 --> 0:01:23.679
<v Speaker 1>who's working in a jungle or a desert that's far

0:01:23.920 --> 0:01:28.880
<v Speaker 1>from normal Internet access points. Satellite internet does not use

0:01:29.000 --> 0:01:33.400
<v Speaker 1>telephone lines or cable systems, but instead uses a satellite

0:01:33.480 --> 0:01:39.200
<v Speaker 1>dish for two way upload and download data communications. Upload

0:01:39.280 --> 0:01:42.520
<v Speaker 1>speed is about one tenth of the five kill a

0:01:42.600 --> 0:01:47.600
<v Speaker 1>bit per second download speed. Cable and DSL have speeds

0:01:47.640 --> 0:01:50.160
<v Speaker 1>that could be ten times or more higher than that,

0:01:50.520 --> 0:01:53.760
<v Speaker 1>but if you've got nothing, five kill a bits per

0:01:53.800 --> 0:01:58.080
<v Speaker 1>second looks pretty good. There are several companies today offering

0:01:58.200 --> 0:02:01.680
<v Speaker 1>satellite Internet access and you Usually the equipment consists of

0:02:02.200 --> 0:02:07.160
<v Speaker 1>first a satellite dish approximately two ft by three ft second,

0:02:07.560 --> 0:02:10.240
<v Speaker 1>two modems, one for up link and one for down link,

0:02:10.360 --> 0:02:13.959
<v Speaker 1>and then some coaxial cables between the dishes and the modem,

0:02:14.000 --> 0:02:17.000
<v Speaker 1>and a cable that connects to your computer. The key

0:02:17.160 --> 0:02:21.359
<v Speaker 1>installation planning requirement is a clear view to the south

0:02:21.560 --> 0:02:24.720
<v Speaker 1>that means no trees getting in the way, since the

0:02:24.800 --> 0:02:28.920
<v Speaker 1>orbiting satellites are usually tending to be over the equator area,

0:02:29.440 --> 0:02:33.800
<v Speaker 1>and like satellite TV, trees and heavy rains can affect

0:02:33.840 --> 0:02:38.120
<v Speaker 1>reception of the Internet signals. Two way satellite internet usually

0:02:38.240 --> 0:02:43.440
<v Speaker 1>uses Internet Protocol multicasting technology, which means up to five

0:02:43.520 --> 0:02:47.560
<v Speaker 1>thousand channels of communication can simultaneously be served by a

0:02:47.639 --> 0:02:52.440
<v Speaker 1>single satellite. I P multicasting sends data from one point

0:02:52.560 --> 0:02:56.600
<v Speaker 1>the satellite to many points at the same time. By

0:02:56.720 --> 0:03:01.120
<v Speaker 1>sending data in compressed format, compression reduces the size of

0:03:01.120 --> 0:03:04.400
<v Speaker 1>the data and the bandwidth, allowing so many people to

0:03:04.440 --> 0:03:08.919
<v Speaker 1>share that same connection. In some rural areas, there's also

0:03:09.160 --> 0:03:13.160
<v Speaker 1>hybrid systems where the data comes down via satellite, but

0:03:13.240 --> 0:03:16.560
<v Speaker 1>the up link is served with a normal dial up modem.

0:03:16.560 --> 0:03:20.359
<v Speaker 1>This sometimes can reduce the cost and improve response times

0:03:20.400 --> 0:03:24.080
<v Speaker 1>for the connection. So if you're in a rural area

0:03:24.320 --> 0:03:27.919
<v Speaker 1>or a truly remote area and you want broadband access

0:03:27.919 --> 0:03:31.760
<v Speaker 1>to the Internet, satellite Internet maybe a good option. In fact,

0:03:31.880 --> 0:03:35.560
<v Speaker 1>it may be your only option for more on this

0:03:35.720 --> 0:03:38.200
<v Speaker 1>and thousands of other topics because it has staff works

0:03:38.240 --> 0:03:44.720
<v Speaker 1>dot com. Audible dot com is the leading provider of

0:03:44.760 --> 0:03:48.320
<v Speaker 1>digital audio books and spoken word, with over one titles

0:03:48.320 --> 0:03:50.800
<v Speaker 1>to choose from. Audible lets you listen to your favorite

0:03:50.840 --> 0:03:54.960
<v Speaker 1>books anywhere, anytime. Go to audible podcast dot com slash

0:03:54.960 --> 0:03:57.320
<v Speaker 1>stuff Brain to get a free audio book download of

0:03:57.360 --> 0:03:58.880
<v Speaker 1>your choice when you sign up today.