I'm VERY new to Aruba and Wireless....so please be gentle! :)
While deploying new AP 105's at a new site, I've noticed that the Layered SNR heat map for ALL newly deployed APs show an area of reduced signal quality immediately to the top of the AP (with "top" meaning towards the top of the diagram). I understand that the AP 105's are omnidirectional.....and also realize that many factors can impact the SNR values shown. However - regardless of the location within the building the new APs are deployed, the "dead" space is ALWAYS showing up in the same spot for ALL APs (all are directly "above" the AP on the heat map).
Just to play "devil's advocate", I physically spun one of the APs 180 degrees - no change. I'm convinced that this perceived dead space is not accurate, since the building I'm working on now is rather large, and the APs are deployed in several locations (there is nothing in the building/structure that would cause reduced coverage as shown on the heat map).
Is this simply a characteristic of the Aruba OS/app? Any ideas/suggestions would be very much appreciated!