802.11g

Here is a great capture of Wi-Fi on Channel 6 in 802.11g, which takes a square shape at the top.

802.11g on Channel 2

Due to the modulation scheme used in 802.11g, it will appear flat with sloping shoulders. The flat top is usually about 18 MHz wide. The two separate signatures shown in the topographic view above are the access point and the client. Notice in the spectral view that the network was fairly quiet for the first 40 seconds and then a burst of network traffic occurred.

• Download the sample recording
• Download a screen capture of an Aruba 802.11g wireless router on channel 11.
• More Information regarding 802.11g at Networkworld.

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Comparison of Wi-Spy vs Wi-Spy 2.4x. Measurement of Linksys WRT54G and WPC54G 11g WLAN driven by IxChariot throughput script. Wi-Spy, AP and STA located within 3 feet of each other. (Contributed by Tim Higgins at SmallNetBuilder.com)