The intent is a rooftop, which has no practical wind loading limit, at least not like a tower does.
The intent isn't so much a bunch of 8' dishes, but a bunch of 1', 1.5', 2' type dishes. Easier to just put a rate in there to cover what may lie ahead than to renegotiate each addition. Maybe I do need a 3' dish for an 11 GHz link, but most likely 1' - 2' for 24 GHz and up. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Ken Hohhof" <af...@kwisp.com> To: af@afmug.com Sent: Thursday, June 30, 2016 9:12:39 PM Subject: Re: [AFMUG] Graduated $/' Weight and wind load would go up approximately as the square of diameter, right? So it seems your proposed graduated pricing is actually in the wrong direction. I guess it depends on how you define real estate on the particular tower. If structural loading isn’t the limiting factor, you could take the view that the tenant can put whatever they want at their designated rad center for a fixed price. That 5 or 10 feet of vertical space is theirs, doesn’t matter how many dishes and sectors they cram into it. It’s not like you are going to put another tenant in that same space. Unless you’re talking about the top which you might lease for multiple omnis. From: Mike Hammett Sent: Thursday, June 30, 2016 8:16 PM To: af@afmug.com Subject: Re: [AFMUG] Graduated $/' I didn't say as much, but I meant aggregate. 3x 2' dishes would be 6' of antenna. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Eric Kuhnke" <eric.kuh...@gmail.com> To: af@afmug.com Sent: Thursday, June 30, 2016 6:07:38 PM Subject: Re: [AFMUG] Graduated $/' For rooftop anything over 6' is a totally custom negotiation thing, the pain factor for building management depends on a lot of engineering concerns that are unique to a particular site. Does somebody want to put a 6' high performance dish on a 8'x8' footprint non penetrating roof mount and what is its weight loading (with concrete blocks) in kg/square meter? Or a penetrating roof tripod/four legged mount attached to the roof structural members of the building, in which case you get into insurance liability concerns and roofing (usually requiring a custom price quote from a roofing company to modify the membrane in a code compliant way). Or on a 4.5"/6" size sch40 pipe on wall standoff mounts on the side of a mechanical penthouse? Sticking to $/ft ratio works up to the 4 ft size and multiples thereof but anything bigger is really an answer of "It depends..." On Thu, Jun 30, 2016 at 4:02 PM, Mike Hammett < af...@ics-il.net > wrote: Do any of you have a rooftop (or I suppose tower too) lease that has a graduated $/' rate? Say $100 per antenna foot until you hit 10', then only $75 per antenna foot? Looking at a way to make lease rates easy, yet allow for bulk discounts. If so, looking for what dollars\thresholds you have. Maybe you don't have it spelled out like that, but have similar pricing that just happens to work out that way? ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP