He didn't say ePMP was too expensive, he said it had too many bugs.

On 11/9/2015 9:40 AM, Josh Luthman wrote:

Dude he thinks EPMP is way too expensive. Doesn't read like a very rational post to me.

Josh Luthman
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On Nov 9, 2015 9:35 AM, "Sean Heskett" <af...@zirkel.us <mailto: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 <mailto: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.
        >>
        >>
        >


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