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devices have different antennas, in different places and with different orientation.
by rasz_pl 11y ago
devices have different antennas, in different places and with different orientation.
- fabulist 11y agoA wifi antenna should always be vertically oriented because radio waves are polarized, and if you aren't in line with the polarization you'll lose gain.
- rasz_pl 11y agoWhat is the polarity of ipad antenna on your lap? :) Then you have multipath (reflections). This is why wifi cards had diversity switch and two antennas even before MIMO, and with 11n gained spatial diversity and beamforming. random google result: http://www.theruckusroom.net/2011/06/a-polarizing-problem.html http://www.theruckusroom.net/2011/06/a-polarizing-problem.ht...
- timlyo 11y agoIt's accurate over 1 metre squared. I don't think the placement is too large of an issue.
- rasz_pl 11y agomismatched polarisation can lead to over 20db of attenuation