Re: [Cambium-users] Cambium 900i Performance
Back when the 900 450 first started shipping, we discovered a couple bad SMs. Linktests were in the dirt no matter what. I don't remember if the modulations were always low or not. I'm thinking everything looked normal which was why we were so confused. But we put another SM in place and it went from something like 4Mbps aggregate to over 20. And repeated this at a couple locations. So we set those aside and moved on. As others have said, what do linktests look like? And what about uplink and downlink modulations? What are the power levels? Hotter than -40dBm is too much. My question would be, why are you using 900 for LOS and/or extremely short range? I'd put up an ePMP 2k on an omni and call it done. Also keep in mind that the 900 450 SMs do NOT have the filtering that the 450i AP does. They're just that, a standard 450 SM. So if you're running zero guard band on your cluster, a really close SM could definitely be seeing adjacent channel interference. On 1/26/2018 9:11 AM, Phil Lambert wrote: We have a problem with 900PMP450i. We have 4 APs on a tower. We have a customer that is very near (1/10 mile) with clean LOS. But for some reason, the customer can’t get any speed. We speculated that perhaps the SM was seeing too much signal from different APs? We’ve tried locking the SM down by frequency to no avail. Note; all APs on the tower have the same color code. Note; this is actually happening with two different customers each connected to different towers not in proximity with each other. Any theories? Regards, Regards, Phil Lambert General Manager 812.759.7905 Q-Wireless, LLC 4209 US Hwy 41 N, Suite 23 Evansville, IN 47711 ___ Cambium-users mailing list Cambium-users@wispa.org http://lists.wispa.org/mailman/listinfo/cambium-users ___ Cambium-users mailing list Cambium-users@wispa.org http://lists.wispa.org/mailman/listinfo/cambium-users
Re: [Cambium-users] Cambium 900i Performance
Link test good or bad? Can you power off the 3 APs quick to confirm it's the problem or not? Tried a new SM? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Jan 26, 2018 10:13 AM, "Adam Bates" wrote: > What firmware version? I recall some past revisions having this issue. > > > > *From:* cambium-users-boun...@wispa.org [mailto:cambium-users-bounces@ > wispa.org] *On Behalf Of *Phil Lambert > *Sent:* Friday, January 26, 2018 10:12 AM > *To:* cambium-users@wispa.org > *Cc:* Rian Postin > *Subject:* [Cambium-users] Cambium 900i Performance > > > > We have a problem with 900PMP450i. We have 4 APs on a tower. We have a > customer that is very near (1/10 mile) with clean LOS. But for some > reason, the customer can’t get any speed. We speculated that perhaps the > SM was seeing too much signal from different APs? We’ve tried locking the > SM down by frequency to no avail. Note; all APs on the tower have the same > color code. Note; this is actually happening with two different customers > each connected to different towers not in proximity with each other. > > > > Any theories? > > > > Regards, > > > > > > Regards, > > > > > > Phil Lambert > > General Manager > > 812.759.7905 <(812)%20759-7905> > > Q-Wireless, LLC > > 4209 US Hwy 41 N, Suite 23 > > Evansville, IN 47711 > > > > ___ > Cambium-users mailing list > Cambium-users@wispa.org > http://lists.wispa.org/mailman/listinfo/cambium-users > > ___ Cambium-users mailing list Cambium-users@wispa.org http://lists.wispa.org/mailman/listinfo/cambium-users
Re: [Cambium-users] Cambium 900i Performance
What firmware version? I recall some past revisions having this issue. From: cambium-users-boun...@wispa.org [mailto:cambium-users-boun...@wispa.org] On Behalf Of Phil Lambert Sent: Friday, January 26, 2018 10:12 AM To: cambium-users@wispa.org Cc: Rian Postin Subject: [Cambium-users] Cambium 900i Performance We have a problem with 900PMP450i. We have 4 APs on a tower. We have a customer that is very near (1/10 mile) with clean LOS. But for some reason, the customer can't get any speed. We speculated that perhaps the SM was seeing too much signal from different APs? We've tried locking the SM down by frequency to no avail. Note; all APs on the tower have the same color code. Note; this is actually happening with two different customers each connected to different towers not in proximity with each other. Any theories? Regards, Regards, Phil Lambert General Manager 812.759.7905 Q-Wireless, LLC 4209 US Hwy 41 N, Suite 23 Evansville, IN 47711 ___ Cambium-users mailing list Cambium-users@wispa.org http://lists.wispa.org/mailman/listinfo/cambium-users
[Cambium-users] Cambium 900i Performance
We have a problem with 900PMP450i. We have 4 APs on a tower. We have a customer that is very near (1/10 mile) with clean LOS. But for some reason, the customer can't get any speed. We speculated that perhaps the SM was seeing too much signal from different APs? We've tried locking the SM down by frequency to no avail. Note; all APs on the tower have the same color code. Note; this is actually happening with two different customers each connected to different towers not in proximity with each other. Any theories? Regards, Regards, Phil Lambert General Manager 812.759.7905 Q-Wireless, LLC 4209 US Hwy 41 N, Suite 23 Evansville, IN 47711 ___ Cambium-users mailing list Cambium-users@wispa.org http://lists.wispa.org/mailman/listinfo/cambium-users
