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Table of Contents
Various tips
With maximum output power, I'll get a better range
This is a false assumption in most situations.
In a home environment, the best output power is not always the maximum. In most situations, 30mw is enough. However, if you are a long distance from the AP, then yes, maximum output power is the best.
I'll buy amplifiers to have a better range
That is not a very good idea because:
- Amplifiers also amplify noise and that's not a good thing for link quality
- With high amplifications, you could get a headache
You are much better off purchasing a good antenna with high gain.
My card says that I have 20dBm (100mW) but i only have 18dBm, why?
Most cards have 100mW when combined with the antenna (2dBi antenna).
In 802.11a and 802.11g, the output power is 30mW due to modulation (it's a bit harder to use OFDM than CCK)
With better txpower, I will have better reception
That's false, txpower isn't linked with receiving at all. For receiving, you should see receive sensitivity of your card. As well, you are much better off purchasing a good antenna with high gain.
Which antenna to choose
You should see Antenna help, Selecting a Wifi Antenna and Netstumbler forum.