I did a crude survey 6 years ago after we swapped the Nortels for Meraki. I used InSSIDer. I walked the floor with my laptop and an accurate floor plan. It showed rows and columns every 20 feet. I stood at the intersection and recorded the highest 2.4 signal at that location. I seem to recall 38 to 60 db was the threshold of 'excellent" signal and 88 was high end of weak.  The majority of the signals recorded were 55 to 72 db.  There were some 'dead' spots then  but I know were they are and will put model 74 with MA-ANT-20. to fill in.   I still have to support both 2.4 and 5 but scanners (15 to 18) will use 2.4 on the scanners.   I have 18 Model 66 and 74 AP's to cover 250,000 sqft.  I suspect I'm ok with the orientation of the AP's. I can get them lowered if that would improve coverage. Other that the Model 66's needing rebooted twice a month they have not been a problem. ... View more

No survey done but an educated guess. We had Nortel AP's and purchased Meraki's to replace them. We put them in the same locations because of the cabling was there and the foot print of coverage had not changed.   We recently have expanded the coverage footprint and I have engaged an installation crew to pull new cables and mount the AP's. It was brought to my attention from the guy mounting them that the Meraki's AP's he installed over the years that they were mounted facing down and the antennas facing parallel to the floor. My current AP's are all installed 35 feet up with the 2.4 antenna's pointing straight up and the 5 ghz antennas pointing straight down. The Model 66's have been in place like this for 6 years. They only are used for handheld scanners in the warehouse so their bandwidth requirements was small.    I'm kind of stuck on what to do. I opened a support ticket with Meraki today and they said to mount them parallel to the floor.   I really want to know what is optimum orientation ... View more

Thanks that did it. ... View more