How to Set Up Your System
The KR1 Mobile Router allows you to create a wireless broadband network virtually anywhere. It uses 1xEV-DO as its WAN backhaul and functions like an access point supporting multiple computers and devices with high-speed wireless data services. All you need is a 1xEV-DO card or phone. The KR1 Mobile Router is especially useful for mobile work groups such as realtors, dispatch teams, consultants, road-warrior sales groups, satellite offices, command posts and more. It can also be used as a reliable alternative for fixed broadband services in your home
Info On EV-DO Cards
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Where to Buy
I recommend this group as they are great at support. If you haven't purchased the EV-DO card yet, then you should do so through them. They will initialize both the card and the KR 1 so when it arrives all you do is plug and go.
Four ethernet ports are available so that if you laptops aren't equipped with WiFi cards you can plug Ethernet cables directly into the KR 1.
Thanks to Ben there's a great site where you can test the download and upload speed of your system while accessing the internet.
The KR1 comes with both a 12v cigarette adapter and a 115v plug, so you can either use it in car, boat, bus or home. It's not as fast as cable modem, but it does beat dial up. If you're getting ready to buy a new laptop they are starting to use Express Cards instead of the traditional EV-DO card. More Information here on that change.
This is also the answer for computers that don't have the PC slot (PCMCIA) like the smaller Mac laptops.