1
00:00:00,040 --> 00:00:02,920
Speaker 1: Audible dot com is the leading provider of digital audio

2
00:00:02,960 --> 00:00:05,800
Speaker 1: books and spoken word, with over one thousand titles to

3
00:00:05,880 --> 00:00:09,840
Speaker 1: choose from. Audible lets you listen to your favorite books anywhere, anytime.

4
00:00:10,039 --> 00:00:13,119
Speaker 1: Go to audible podcast dot com slash stuff brain to

5
00:00:13,119 --> 00:00:15,400
Speaker 1: get a free audio book download of your choice when

6
00:00:15,400 --> 00:00:18,560
Speaker 1: you sign up today. Welcome to brain Stuff from how

7
00:00:18,640 --> 00:00:30,000
Speaker 1: stuff works dot com where smart happens. Him Marshall Brain

8
00:00:30,080 --> 00:00:35,280
Speaker 1: with today's question, how does satellite internet operate? Let's imagine

9
00:00:35,320 --> 00:00:38,320
Speaker 1: that you live way out in the middle of nowhere,

10
00:00:38,720 --> 00:00:42,599
Speaker 1: or you're working at a site that's completely disconnected from

11
00:00:42,640 --> 00:00:44,519
Speaker 1: the rest of the world, say in the middle of

12
00:00:44,560 --> 00:00:49,279
Speaker 1: a giant national park, or a desert or a massive

13
00:00:49,400 --> 00:00:52,839
Speaker 1: forest or something like that. How do you access the

14
00:00:52,880 --> 00:00:56,880
Speaker 1: Internet in a situation like this? There are no cell

15
00:00:56,960 --> 00:01:00,960
Speaker 1: phone towers for hundreds of miles. There's no DSL lines

16
00:01:01,080 --> 00:01:04,400
Speaker 1: or cable access running along the street. Really, your only

17
00:01:04,520 --> 00:01:07,600
Speaker 1: option is to look up in the sky and reach

18
00:01:07,720 --> 00:01:12,000
Speaker 1: for a satellite. In fact, satellite internet access is really

19
00:01:12,040 --> 00:01:16,000
Speaker 1: your only option. It's ideal for rural internet users who

20
00:01:16,000 --> 00:01:20,639
Speaker 1: want broadband access, people camping in national forests, and anyone

21
00:01:20,680 --> 00:01:23,679
Speaker 1: who's working in a jungle or a desert that's far

22
00:01:23,920 --> 00:01:28,880
Speaker 1: from normal Internet access points. Satellite internet does not use

23
00:01:29,000 --> 00:01:33,400
Speaker 1: telephone lines or cable systems, but instead uses a satellite

24
00:01:33,480 --> 00:01:39,200
Speaker 1: dish for two way upload and download data communications. Upload

25
00:01:39,280 --> 00:01:42,520
Speaker 1: speed is about one tenth of the five kill a

26
00:01:42,600 --> 00:01:47,600
Speaker 1: bit per second download speed. Cable and DSL have speeds

27
00:01:47,640 --> 00:01:50,160
Speaker 1: that could be ten times or more higher than that,

28
00:01:50,520 --> 00:01:53,760
Speaker 1: but if you've got nothing, five kill a bits per

29
00:01:53,800 --> 00:01:58,080
Speaker 1: second looks pretty good. There are several companies today offering

30
00:01:58,200 --> 00:02:01,680
Speaker 1: satellite Internet access and you Usually the equipment consists of

31
00:02:02,200 --> 00:02:07,160
Speaker 1: first a satellite dish approximately two ft by three ft second,

32
00:02:07,560 --> 00:02:10,240
Speaker 1: two modems, one for up link and one for down link,

33
00:02:10,360 --> 00:02:13,959
Speaker 1: and then some coaxial cables between the dishes and the modem,

34
00:02:14,000 --> 00:02:17,000
Speaker 1: and a cable that connects to your computer. The key

35
00:02:17,160 --> 00:02:21,359
Speaker 1: installation planning requirement is a clear view to the south

36
00:02:21,560 --> 00:02:24,720
Speaker 1: that means no trees getting in the way, since the

37
00:02:24,800 --> 00:02:28,920
Speaker 1: orbiting satellites are usually tending to be over the equator area,

38
00:02:29,440 --> 00:02:33,800
Speaker 1: and like satellite TV, trees and heavy rains can affect

39
00:02:33,840 --> 00:02:38,120
Speaker 1: reception of the Internet signals. Two way satellite internet usually

40
00:02:38,240 --> 00:02:43,440
Speaker 1: uses Internet Protocol multicasting technology, which means up to five

41
00:02:43,520 --> 00:02:47,560
Speaker 1: thousand channels of communication can simultaneously be served by a

42
00:02:47,639 --> 00:02:52,440
Speaker 1: single satellite. I P multicasting sends data from one point

43
00:02:52,560 --> 00:02:56,600
Speaker 1: the satellite to many points at the same time. By

44
00:02:56,720 --> 00:03:01,120
Speaker 1: sending data in compressed format, compression reduces the size of

45
00:03:01,120 --> 00:03:04,400
Speaker 1: the data and the bandwidth, allowing so many people to

46
00:03:04,440 --> 00:03:08,919
Speaker 1: share that same connection. In some rural areas, there's also

47
00:03:09,160 --> 00:03:13,160
Speaker 1: hybrid systems where the data comes down via satellite, but

48
00:03:13,240 --> 00:03:16,560
Speaker 1: the up link is served with a normal dial up modem.

49
00:03:16,560 --> 00:03:20,359
Speaker 1: This sometimes can reduce the cost and improve response times

50
00:03:20,400 --> 00:03:24,080
Speaker 1: for the connection. So if you're in a rural area

51
00:03:24,320 --> 00:03:27,919
Speaker 1: or a truly remote area and you want broadband access

52
00:03:27,919 --> 00:03:31,760
Speaker 1: to the Internet, satellite Internet maybe a good option. In fact,

53
00:03:31,880 --> 00:03:35,560
Speaker 1: it may be your only option for more on this

54
00:03:35,720 --> 00:03:38,200
Speaker 1: and thousands of other topics because it has staff works

55
00:03:38,240 --> 00:03:44,720
Speaker 1: dot com. Audible dot com is the leading provider of

56
00:03:44,760 --> 00:03:48,320
Speaker 1: digital audio books and spoken word, with over one titles

57
00:03:48,320 --> 00:03:50,800
Speaker 1: to choose from. Audible lets you listen to your favorite

58
00:03:50,840 --> 00:03:54,960
Speaker 1: books anywhere, anytime. Go to audible podcast dot com slash

59
00:03:54,960 --> 00:03:57,320
Speaker 1: stuff Brain to get a free audio book download of

60
00:03:57,360 --> 00:03:58,880
Speaker 1: your choice when you sign up today.