I'm trying to figure out if the MR18's are made to be mounted upside down. Unlike the the MR33 diagrams, there is no way to tell how the APs are oriented in the published signal coverage patterns (radiation). In the diagram, there appears to be a 5dB difference between AP top and bottom for horizontal signal. Question is, what is the top and bottom for the AP in the diagram? Also, is the diagram in dB or some other measurement?
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