reply to aknisley
Re: [Equipment] wifi equipment mounting-top or bottom I agree with Tom. Address why you have to replace the radios in the first place.
If it's lightning or ESD related to lack of adequate bonding to a common ground, then mounting the radios at the base only means it will be easier to replace them. So if you addressed cause of the problem, you may not have to do so many replacements in the first place.