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Thread: 5Ghz Lower Band

  1. #1

    Default 5Ghz Lower Band

    So I was recently investigating some wierd drops on a couple new streaming cameras that I put on wifi and during some troubleshooting I ran into 10 mins of this. Any ideas?

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    And another one seen today while scanning on a higher channel while troubleshooting more video.

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    Last edited by nkarwocki14; 07-30-2015 at 02:21 PM.

  2. #2

    Default

    Nice! The flat tabletop shape with shoulders down the side is OFDM (orthogonal frequency division multiplexing), which is the modulation scheme used by 802.11a, n, and ac. In other words, you are probably looking at Wi-Fi traffic.

    In some cases, it can be a "Wi-Fi-like" device that uses a non-standard derivative of the 802.11 standard. I have a "wireless HDMI" cable thing that makes this signature. It's based on Wi-Fi, but it isn't Wi-Fi.

    Check out this article to see more spectrum analysis signatures!

    https://support.metageek.com/hc/en-u...rence-Examples
    Joel, Mobility+, ECSE, CWNE #233
    Technical Trainer
    MetaGeek

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