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Originally Posted by Lazlo
Sorry, I should have been more descriptive.
I have a Compaq N620c laptop, and Im looking for a wifi card for basic wardriving. I commute to work every day and since I work downtown, I would assume there are lots of wifi spots to find. Since there are tall buildings I would assume that an antenna would be benificial, but if Im only going to pick up one type of network maybe It's not worth it. I've read that the range of the internal antennas in some cards aren't very good, and that most "wardriving" kits include an antenna. That's my dilemma.
Will I pick up more AP's with a B card + antenna than a A/B/G card with no antenna, from street level in a heavy populated downtown area?
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B card with an antenna.
Before you ask "Which antenna?" take a look through the general Antenna FAQ located here:
FAQ
It should answer a lot of questions. Pay attention to the third post down, regarding patterns, as it will affect how you detect APs above you in an urban setting.
Also, you might want to look at why cheap antennae are bad:
http://www.netstumbler.org/forumdisplay.php?f=23