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WiFi Information 802.11

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802.11 b/g CCK - Radio Channel

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802.11a - OFDM Radio Channels

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802.11 Channels

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802.11 Channel Overlap

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2.4 Ghz Channel Overlap

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802.11 Channel Co-Location

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802.11 Channel Co-Location

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Same Channel Interference

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Same Channel Interference

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Change of Power & Planning

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Channel 1 408 18% Lower than expected 33%

2 71 3% Causing interference

3 120 5% Causing interference

4 73 3% Causing interference

5 88 4% Causing interference

6 743 33% Right at Expected 33%

7 79 4% Causing interference

8 69 3% Causing interference

9 68 3% Causing interference

10 154 7% Causing interference

11 332 15% Lower than expected 33%

APs not on1, 6, 11 722 32%Using these other channels onlycaused unnecessary interference

Shared Channel War Driving Report

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Association to Access Point

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Roaming Between Access Points

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Bluetooth Devices

Microwave (Leaking)

(non-leaking)

Portable Phones

900 MHz

2.4 GHz 5.8 GHz

Video Monitors

Wide Band

802.11

Jammers Wide Band

Narrow Band

Interference Examples