Dude he thinks EPMP is way too expensive. Doesn't read like a very rational post to me.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Nov 9, 2015 9:35 AM, "Sean Heskett" <af...@zirkel.us> wrote: > You must be doing something wrong because our experience is the complete > opposite with PMP450. > > What does your noise floor look like? > > -Sean > > On Sunday, November 8, 2015, Daniel Gerlach <danielgerl...@gmail.com> > wrote: > >> the 450 is a 4 years old pointless product like nearly everything from >> Cambium..it is too expensive and soo low Bandwith for the customers.We >> have thrown it out of the Network..The epmp serie has only bugs( we >> have found last week a new with heavy traffic and more than 35 CPE´s >> on a AP) and Cambium told me that they can not fix it before >> Christmas. >> >> >> 2015-11-08 4:21 GMT+01:00 Eric Kuhnke <eric.kuh...@gmail.com>: >> > Same on any half duplex TDD platform with PtMP and low modulation (QPSK) >> > subscribers. If you have a ubnt 5 GHz AP with a bunch of clients in >> 64QAM >> > 3/4 to 64QAM 5/6 and a few are on the air using QPSK 1/2, it's going to >> drag >> > down the performance of that whole radio and sector significantly. It >> can be >> > as much as from 80 Mbps aggregate to 20 Mbps. Looking at the RSL >> thresholds >> > needed to operate at 1X in 450 terms, it sounds like a few of those >> client >> > radios are "just barely hanging on"... >> > >> > On Fri, Nov 6, 2015 at 10:37 AM, George Skorup <geo...@cbcast.com> >> wrote: >> >> >> >> If those 1X and 2X downlink SMs are even moderately active, that really >> >> throws a wrench into the sector performance. This is true on any PMP >> >> platform. We've seen our fair share of it. We've moved a couple back >> to FSK >> >> which is something I never, ever want to do, but it was unfortunately >> >> necessary. >> >> >> >> >> >> On 11/6/2015 11:50 AM, Eric Muehleisen wrote: >> >>> >> >>> We have a few 450 AP's with 30-40 subscribers and have been getting >> >>> several slow speed complaints lately. I just chaulked it up to issues >> >>> with the SM since the AP rarely got over 20mb/s downlink. We upgraded >> >>> to 13.4 recently so we could watch our frame utilization. We started >> >>> graphing it over night and as you can see, we are hitting 100% for >> >>> sustained periods of time. During that time the AP is only doing >> >>> approx. 23mb/s. This particular AP has 34 registered SM and the >> >>> majority show 6x and 4x with 4 or 5 SM's at 2x and 1x. The performance >> >>> is a major disappointment. Anyone else have similar experiences? >> >>> >> >>> AP configuration: 20mhz channels, 2.5ms frame, 10 miles, 75% downlink, >> >>> 3 contention slots. >> >>> >> >>> Attached is a screenshot of the utilization and sector throughput >> >>> calculator from the Capacity Planner R13. >> >> >> >> >> > >> >
