The MR36 has a coverage pattern where most of the signal goes sideways, and a bit up and down. Perfect for mounting in offices on the roof where it spreads out sideways along the floor, but doesn't waste energy trying to punch through the floor or go up into the roof. Depending on how long the warehouse rows are, sometimes you can put access points at the ends of the rows and use a directional antenna to pump the coverage down. This works great if you mostly want WiFi at ground'ish level (such as in the cab of a forklift or humans walking around).
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