I recently purchased a targus backpack. It has two padded pockets plus a few additional pockets. There is a carrying handle on the top as well as the backpack straps. Easy to carry on one shoulder or on both. And it can fit under the airplane seat.
This is certainly one option. For 10 users the price does go up. However there are other options out there. Companies like TRG systems out of Vancouver have solutions that are aimed at community groups, villages, and other clusters that come in very favourably to the options shown by C-Comsat. Companies like Telesat have options that can provide connectivity for towns and groups as well. They are not cheap but when the cost of connecting 50 to 100 homes in a community it is not bad at all and it is very robust. Additionally a second high bandwidth carrier can have the clinic or school do video conferencing and other high bandwidth applications.
The satellite is in geostationary orbit at 22,360 miles above the equator. Depending at what latitude you are there is a 250 to 280 ms ping time per hop. Two hops = 560 ms. Add the latency in the equipment of 50 to 100 ms and the time to get from the Washington hub to your site and back.
The other item to remember is this is a Hughes system and as such is subject to the Fair Access Policy. I had a tour of the company last month and it does work. How well it will work when the space segmeng gets congested is another matter.
...dan
9600 baud.. outgoing. Use a direcpc for the return path. That would give you 50K per second easy.
We have been using MSAT phones with Direcpc in communities without phones for years. Coupled to a linux box with Helius software http://knet.on.ca/knetrouter .
We have been using linux, a direcpc dish and MSAT (mobile satellite) phones for about 2 years now in several locations. http://knet.on.ca/poplartrip/photogall2.html Ping times are about 1700ms. The system is painfully slow awaiting responses but fairly quick for downloads. Considering there was no access to begin with and in some communities no telephones this is a blessing for those who now use email to communicate and are able to do ICQ and such things.
Re:But is it because Linux is superior?
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We have a WAN with remote sites that require us to fly in. (no road access). Linux allows us to create a small distribution on a flash drive and run it on a ram disk. We are not programmers, shell scripts maybe but that is it. Now we build these small direcpc routers, ship them on site and they work. We never hear again from the site or the client. Certainly more versatile for us non-programmers.
We use symphony cards with unidirectional antennas from tiltek.com A little pricey but we can make a multi point cross village network. The linux software fits on a floppy and does port forwarding. cheap computer without a harddrive does quite well. Next on the list is to create small sealed boxes that can be mounted outside on the house or on the telephone pole with only the network cable coming into the house.
Hello. We have been using Direcpc for about three years in isolated locations across Canada. To use Linux with direcpc we use a product called Helius. http://www.helius.com , This allows other computers on the network to access the internet. Then we use the NAT software on the linux software. We have taken the Helius software and the Linux OS and created an embedded version for deployment in the field http://www.knet.on.ca/knetrouter . I imagine that someone out there is looking at making an open source driver for the direcpc card. One of the uses of the direcpc we are experimenting with is in the use of remote kiosks. Because in Canada we use Express Vu we can set it up anywhere that there is a TV dish. The Kiosk mode would get material on a regular basis. Museums, catalogues, training videos etc. Lots of uses. . Now I just need to take sleep and personal time out of my life to work on these ideas..
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I recently purchased a targus backpack. It has two padded pockets plus a few additional pockets. There is a carrying handle on the top as well as the backpack straps. Easy to carry on one shoulder or on both. And it can fit under the airplane seat.
wwitv.com lots of tv stations listed there.
This is certainly one option. For 10 users the price does go up. However there are other options out there. Companies like TRG systems out of Vancouver have solutions that are aimed at community groups, villages, and other clusters that come in very favourably to the options shown by C-Comsat. Companies like Telesat have options that can provide connectivity for towns and groups as well. They are not cheap but when the cost of connecting 50 to 100 homes in a community it is not bad at all and it is very robust. Additionally a second high bandwidth carrier can have the clinic or school do video conferencing and other high bandwidth applications.
...dan
The satellite is in geostationary orbit at 22,360 miles above the equator. Depending at what latitude you are there is a 250 to 280 ms ping time per hop. Two hops = 560 ms. Add the latency in the equipment of 50 to 100 ms and the time to get from the Washington hub to your site and back.
The other item to remember is this is a Hughes system and as such is subject to the Fair Access Policy. I had a tour of the company last month and it does work. How well it will work when the space segmeng gets congested is another matter.
...dan
9600 baud.. outgoing. Use a direcpc for the return path. That would give you 50K per second easy.
We have been using MSAT phones with Direcpc in communities without phones for years. Coupled to a linux box with Helius software http://knet.on.ca/knetrouter .
Athabasca University offers courses completely at a distance. Both paper and computer mediated courses are done.
We have been using linux, a direcpc dish and MSAT (mobile satellite) phones for about 2 years now in several locations. http://knet.on.ca/poplartrip/photogall2.html Ping times are about 1700ms. The system is painfully slow awaiting responses but fairly quick for downloads. Considering there was no access to begin with and in some communities no telephones this is a blessing for those who now use email to communicate and are able to do ICQ and such things.
We have a WAN with remote sites that require us to fly in. (no road access). Linux allows us to create a small distribution on a flash drive and run it on a ram disk. We are not programmers, shell scripts maybe but that is it. Now we build these small direcpc routers, ship them on site and they work. We never hear again from the site or the client. Certainly more versatile for us non-programmers.
Does anyone here have any guesses as to languages that will be gaining in importance for international commerce? Spanish would be one for me.
We use symphony cards with unidirectional antennas from tiltek.com A little pricey but we can make a multi point cross village network. The linux software fits on a floppy and does port forwarding. cheap computer without a harddrive does quite well. Next on the list is to create small sealed boxes that can be mounted outside on the house or on the telephone pole with only the network cable coming into the house.
Hello. We have been using Direcpc for about three years in isolated locations across Canada. To use Linux with direcpc we use a product called Helius. http://www.helius.com , This allows other computers on the network to access the internet. Then we use the NAT software on the linux software. We have taken the Helius software and the Linux OS and created an embedded version for deployment in the field http://www.knet.on.ca/knetrouter .
I imagine that someone out there is looking at making an open source driver for the direcpc card. One of the uses of the direcpc we are experimenting with is in the use of remote kiosks. Because in Canada we use Express Vu we can set it up anywhere that there is a TV dish. The Kiosk mode would get material on a regular basis. Museums, catalogues, training videos etc. Lots of uses. . Now I just need to take sleep and personal time out of my life to work on these ideas..
use the case as a heatsink. Run an aluminum bar do draw heat from the processor to the case.