| ViaSat-1: Mobile Internet: Redux From a previous thread:
»ViaSat-1: Mobile Internet
ViaSat Introduces SurfBeam 2 Broadband Networking System
"Carlsbad, Calif. – ViaSat Inc. (Nasdaq: VSAT) is introducing its SurfBeam® 2 satellite networking system that enables fast and cost-effective satellite broadband services. The new system is designed to simultaneously deliver a wide range of residential, enterprise, and mobile broadband services. Customers can choose from a new family of SurfBeam 2 terminals for consumer, enterprise, on-the-move, and portable applications."
»www.viasat.com/news/viasat-intro···g-system
I have no idea what "on-the-move, and portable applications" means, but it suggests mobile internet. |
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 dbirdmanPremium,MVM
join:2003-07-07
Eureka, CA
kudos:5 | Actually it sounds like "in-motion" which is currently only available using either LEO satellites (slow, high-cost) or on high-mass platforms using very high cost gyro-stabilized or phased-array dishes. In other words, the difficulty with on-the-move internet using geosynchronous is not the modem, its the dish.
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Motosat self-pointing dishes: 1.2-meter XF-3 on 127W, .74 meter G74 on 127W, SL-5 HD DirecTV|idirect 3100|Hughes HN7000S|Verizon UMW190 Air Card|1990 Blue Bird Wanderlodge Bus "Blue Thunder"|Author of hnFAP-Alert, PC-OPI and DSSatTool |
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 BasilAR WildBlue
join:2006-07-20
Parks, AR | Did they not say that they will provide internet for commercial airlines?
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Beam 35 - value |
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dbirdmanPremium,MVM
join:2003-07-07
Eureka, CA
kudos:5 | said by BasilAR:Did they not say that they will provide internet for commercial airlines?
I don't know, but it is being done already with Ku-Band. Commercial airliners are "high-mass" and turn relatively slowly, making phased arrays work. Ships at sea usually use gyro-stabilized dishes, and trains again use phased arrays.
In my mobile world (RVs), in-motion satellite exists only using LEO, and is commonly only phone or e-mail (again at high cost). Mobile in this environment means fixed location that can be moved, and can't have beam limitations.
When someone with Ka throws out the word "mobile" but doesn't qualify it we don't know if they are talking about within-one-beam, or true beam-hopping.
Providers typically hate the idea of beam-hopping because they can't control beam loading in those situations.
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Motosat self-pointing dishes: 1.2-meter XF-3 on 127W, .74 meter G74 on 127W, SL-5 HD DirecTV|idirect 3100|Hughes HN7000S|Verizon UMW190 Air Card|1990 Blue Bird Wanderlodge Bus "Blue Thunder"|Author of hnFAP-Alert, PC-OPI and DSSatTool |
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| reply to BasilAR
said by BasilAR:provide internet for commercial airlines?
Last I heard on that topic was that they were using ground based bandwidth via 100 cell phone towers in continental U.S. airspace.
"Only Lufthansa offers intercontinental coverage on its flights, and it does so via satellite"
»www.bnet.com/article/which-airli···g/410633 |
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 PakapabPremium
join:2002-03-17
Cap Haitien
 ·Natcom Haiti
·Clear Wireless
| reply to DrStrangeLov
I think that this is what VIASAT is referring to. Deal with JetBlue
»www.viasat.com/news/formalized-a···-service |
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dbirdmanPremium,MVM
join:2003-07-07
Eureka, CA
kudos:5 | Another one of those articles that talks about the modem like it was the only important piece of hardware, but no mention of the much harder element - the antenna or antenna array. Who is going to make that, and how is it going to work?
Any Wild Blue installer here can tell you that pointing has to be mighty precise for Ka, and maintaining that pointing from a moving platform is a major engineering item.
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Motosat self-pointing dishes: 1.2-meter XF-3 on 127W, .74 meter G74 on 127W, SL-5 HD DirecTV|idirect 3100|Hughes HN7000S|Verizon UMW190 Air Card|1990 Blue Bird Wanderlodge Bus "Blue Thunder"|Author of hnFAP-Alert, PC-OPI and DSSatTool |
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| said by dbirdman  talks about the modem like it was the only important piece of hardware[/BQUOTE :After further searching, I don't think JetBlue's system will be working with ViaSat-1 Bird, but with KVH Industries.
Read here: »www.viasat.com/files/assets/MBBY···_web.pdf
"Yonder service is delivered over existing multi-purpose Ku-band satellites, making it more affordable than services based on special satellites that support only limited markets"
Article was about the modem, not ViaSat-1 |
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dbirdmanPremium,MVM
join:2003-07-07
Eureka, CA
kudos:5 | Could be. The KVH stuff has been around for a long time. They used to market to the RV segment, but couldn't make much headway. Downlink is from Geosynchronous, because you can do that with a low-mass small dish (just as KVH and other in-motion TV dishes do). Uplink is capable of using cellular (first choice, low cost) or LEO satphone (second choice, high cost) depending on where you are.
I know a guy who uses one on a trawler in the Bering sea.
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Motosat self-pointing dishes: 1.2-meter XF-3 on 127W, .74 meter G74 on 127W, SL-5 HD DirecTV|idirect 3100|Hughes HN7000S|Verizon UMW190 Air Card|1990 Blue Bird Wanderlodge Bus "Blue Thunder"|Author of hnFAP-Alert, PC-OPI and DSSatTool |
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| See: »www.viasat.com/files/assets/MBB_···_web.pdf |
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| reply to dbirdman
Footnote - Within that literature cited above, "Our partnership with KVH Industries ensures your coverage will extend to nearly every corner of the globe." |
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