I went out with a PG&E technician that had a special scanning tool that connected to the mesh. It showed all the local smart meters (hundreds and hundreds through the hub we were looking at).

bp
<part15sbs{at}gmail{dot}com>

On 12/17/2015 9:04 AM, Jaime Solorza wrote:
what do you use to "see" the signals? Most FHSS move so fast Airview doesn't catch it very well.

Jaime Solorza
Wireless Systems Architect
915-861-1390

On Thu, Dec 17, 2015 at 9:48 AM, Bill Prince <part15...@gmail.com <mailto:part15...@gmail.com>> wrote:

    The smart meters here do a mesh/hub system. All the meters talk to
    each other doing a FHSS mesh.

    They figure out where the nearest hub is, and all the meters in a
    neighborhood relay their information to the hub through the
    meter(s) that are closest to the hub. So they are chatting all the
    time, and the ones closest to the hub never stop.


    bp
    <part15sbs{at}gmail{dot}com>

    On 12/17/2015 8:39 AM, Adam Moffett wrote:

        I know I'm late to this thread.  The only smart meter system
        in this area is a polling system.  The meter reader just
        drives down the street while his truck transmits a polling
        message, which the meters then reply to.  The meters only
        speak when spoken too, so we never really had a problem with
        those. There's still a huge labor savings for the power
        company, and apparently it was a lot cheaper than deploying
        the mesh system from the same manufacturer.

        What I infer from these threads is the effect of this smart
        meter stuff is heavily dependent on what equipment the power
        company bought, how it's deployed, and how it's configured. So
        yeah, YMMV is the only real answer.

        On 12/16/2015 9:16 AM, Eric Muehleisen wrote:

            Interesting. The majority of our 900 subs are located in
            prime smart
            meter territory. I've worked with several of the power
            companies
            across western Kansas and they all run a version of Landis
            Gyr meters
            with is FHSS 900 ISM (see pic here
            https://dl.dropboxusercontent.com/u/1578608/Public/smart_meter.jpeg)

            They transmit infrequently in short bursts...very little
            data. The
            only time we see interference is when they mass update
            software. After
            some discussion, we convinced them to run updates during
            our non-peak
            times. So far we've been able to co-exist peacefully. YMMV.

            On Tue, Dec 15, 2015 at 7:38 PM, Ken Hohhof
            <af...@kwisp.com <mailto:af...@kwisp.com>> wrote:

                Everywhere.

                Smartgrid is probably the main culprit.

                And without LOS, all signals get scattered by the same
                foliage and other
                obstacles that are scattering the signal you are
                trying to pick up.  So
literally, the interference sources are everywhere. Sometimes I blame the
                midichlorians.


                From: Jaime Solorza
                Sent: Tuesday, December 15, 2015 7:28 PM
                To: Animal Farm
                Subject: Re: [AFMUG] 900 MHz 450i report


                Where is the noise coming from?

                On Dec 15, 2015 6:19 PM, "Ken Hohhof" <af...@kwisp.com
                <mailto:af...@kwisp.com>> wrote:

                    We swapped out an FSK AP in a high interference
                    area today.  No magic,
                    works about the same.

                    Too bad, even the installer liked the SM and
                    antenna.  Even the coax boots
                    are nice.

                    Will probably work well for those of you who don't
                    have -65 noise floors.

                    We are going to have to give up on 900 MHz at this
                    location.  This was the
                    last gasp.





Reply via email to