Thanks for your reply Jaykay
The local regulation is actually pretty clear: the 5470-5725 MHz
band is free (unlicensed) for outdoor use as long as DFS is enabled.
You're are right, the situation in which they'll all require 100Mbps
at the same time is pretty unlikely. It just makes sense to me that
if they signed on for 100Mbps, then 100Mbps is what I will do my
utmost to deliver.
No ISP on the world have the network-capacity to deliver 100% link utilization from all customers at the same time. Oversubscribing is ok. Problem is if you oversubscribe by 1000times like some ISP did in the past. Those ISPs now wonder that ppl actually use bandwidth they got. 5 Years ago consumers had almost the same average utilization with 2M link as with a 20M link. Website just loaded fast for the one with 20M and the line idled more time. But now with all the videostreaming services ppl start to used it more. But this is getting to much off-topic. In my opinion the best way is to test what's physical possible and then make a clear statement. Like if you got ~200M over the air to all the clients connected in the sector and you plan to have 5 customers there than sell it as up-to 100M with minimum 40M ( maybe better say 30 to have a bit space )
Fiber links for business customers are pretty expensive here:
3000€ for the setup, and 1000€ per month for 50Mbps.
That's the usual pricing (for business customers) in germany as well. Kindly ask: how much do you take for a 100M wireless link?
Is there any sector antenna that you would suggest ? I suppose
that I might require up to three of these if I need to cover 360°
You can do different setups like 3x 120° or 4x 90°. Even 6x 60° is possible. As you should not use the same channel on different sectors you might run out of free channels if you do more sectors. I've not so much experience with sector-antennas to make a good manufacture suggestion. I played with one from rf-elements a while ago. I would definitively go for MiMo H+V antennas.
Would an RB493 (or RB800) be powerful enough to handle
the traffic assuming I manage to take on 5 or 6 such links ?
I would not use one board for so many radios. Personally i would use a RB912 per sector. I don't know how your building/roof looks but it could be reasonable to put the antennas/APs on the etches of the roof. Having the systems all on one pole could give some problems with interference between your own systems. You can can low the risk of such problem by separate them on the roof.
I have a CCR1009 to handle the routing
That's nice should be no problem to handle the traffic with the ccr
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