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Can anyone recommend a source of good grounding in these kind of electrical essentials such as the relevance of positive and negative voltages, resistance and how it is measured in ohms. My physics is somewhere between rusty and well.... Don't ask.... The sybex CWNP Study guide is making me realise I have got a lot of shaky foundations that I need to fix. I am after text or sites, or books.

Many thanks.

Nik, there you go:

http://www.wildpackets.com/elements/whitepapers/math_physics_jbardwell.pdf

Really good whitepaper that covers math and physics for Wi-Fi engineers.

That's an awesome ebook! I love it :D and it's a great compliment to the CWNA book.

Yes indeed. I read it when I was studying for the CWNA.