Ken, I wonder if using the Capacity Planner excel sheet might shed some light on your question? https://support.cambiumnetworks.com/files/capacityplanner/
I haven't used the sheet in quite some time, but last I recall, you can plug in your AP and SM's and get a pretty good idea of throughput at different channel bandwidths. On Thu, Oct 22, 2020 at 11:15 PM Ken Hohhof <af...@kwisp.com> wrote: > Does anyone know off the top of your head what the current CPU limited max > throughput is for 450 vs 450i APs? Not based on RF characteristics but > packet processing in the CPU. > > > > I keep thinking at one time 450 APs were only capable of maybe 20 Mbps but > that can’t be right because I have some doing over 40. I think Cambium > said that firmware tweaking kept raising that number. > > > > I’m asking because I have one lone site with a 450 and an omni, and maybe > a dozen subs scattered through the entire 360 degrees. So while I am going > to need more throughput, it just doesn’t justify 4 sectors, and the cables > are in conduit and I think we only ran 4 cables and we have 2 backhauls. > And it occurs to me what I need isn’t sectors, it’s to increase the channel > width to 30 MHz (450) or 40 MHz (450i). But will a 30 MHz channel really > help if the 450 AP is pps limited by the CPU? I’m OK with replacing the > 450 with a 450i if necessary. Most sites we have at least 4 sectors, so > mostly 20 MHz channels. But an omni with a 40 MHz channel would use the > same amount of spectrum as 4 sectors and 20 MHz channels. > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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