Data rate: To understand why data transmissions don’t always make it from a transmitter to receiver, you must know what data rates are being used.If your intention is to get a capture focused on a specific AP, then lock your capture to that AP’s channel, and validate that the capture was on that channel Channel (frequency): As a wireless LAN may support anywhere from 3 to 25 different channels, it’s crucial to know exactly which channel(s) your capture was taken from.Some important physical layer values you need to be aware of are channel, data rate, and signal strength.
It is important to get an understanding of the physical layer of the capture before diving into the capture to analyze the upper layers. Unlike wired packet analysis, the wireless physical layer is more complex.
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