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WiFi (802.11G/N) signal strength — 4 Comments

  1. I think sometimes the orientation of the router/antennae makes a difference. I don’t think the signal travels from the router in a perfect sphere. With connected devices at significantly different heights, there may be an impact there, too.

    But you’re right. When feasible, wired will always be better.

  2. By looking at the antenna gain profile graphs (which most people would struggle to understand), I’d say most WiFi antennas have more of a “dounut” rather than a spherical signal.

    So yes, you get a lower signal directly above and below a “vertical” antenna.

    So if I come across multistory WiFi connections, I generally tilt the antenna towards the PC on the other floor (this results in tilting the “donut” signal.

    But all this tends to go out the window when you look at MIMO “N” routers with multiple antennas, as you get overlaps and bounces, which should help with weak signals.

  3. Hi,
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