I bought the 3g datacard off ebay for a fairly good price. I was intending to use it with the ubuntu linux operating system, after I read that other people have been successful in getting it to work on Ubuntu.
The card has a small LED which lights up according to the status of the card. It lights up red when it can't find a signal, or it's trying to find a signal. The LED goes green if you are able to connect to a GPRS connection. GPRS usually gives you around 4KB/s speed, which isn't fast at all. But if you find that you have the great little blue light, you're good to go onto the 3g network. 50KB/s. Much faster.
I've found that this card has been quite reliable at keeping a signal. I'm using the driver that is built into ubuntu linux, which helped setting up the card easily and quickly.
This is great value seeing that most 3g phones that you could use as a modem are so much more money.
Well worth the money in my opinion
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