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    LOwer or higher

    I haven't been to the site yet. Going this morning.

    Customer has two robotic lawn mowers that uses a buried fence wire. Each has its own section of lawn. Area 1 occasionally has a strip of un-mowed grass often enough that they are asking for help to determine why. Mowers themselves can be moved to the each area with similar results always in Area 1.

    The fence and mower can operate at selectable frequencies. What is better for spotty reception? Lower or higher? Or is it just try them all to see how it works? The installer has tried different ones but admits to skipping some of the lower frequencies.

    We will check to make sure his fence is not faulted and with some witching skills of my help, determine that an old hippie van isn't buried in that part of the yard. Maybe.
    Tom
    TBLO

    #2
    Lower.
    A woofer will send a wave through walls.
    Wifi lower again better through obstacles.

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      #3
      if it is only in same area every time would suspect underground wiring there that is close to frequencies, or even metal pipe underground that is some how getting same vltage frequency once in a while
      Student of electrical codes. Please Take others advice first.

      Comment


        #4
        Robotic lawn mower? That's a service call we haven't had yet.....

        Should be interesting.

        Comment


          #5
          Originally posted by Cow View Post
          Robotic lawn mower? That's a service call we haven't had yet.....

          Should be interesting.
          Robotic gopher Ninja!

          Lower frequencies are better for solid obstacles for sure, if that’s what the problem is. Aside from a pipe that has become accidentally energized, there’s also the possibility of a gas, sewer or drain pipe that has cathodic protection on it.
          __________________________________________________ ____________________________
          Many people are shocked when they discover I am not a good electrician...

          I'm in California, ergo I am still stuck on the 2014 NEC... We'll get around to the 2017 code in around 2021.

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            #6
            We did our thing. I would have failed the trouble area perimeter wire (fence) and the guide wire as being faulted to found if it hadn’t been so similar in readings to the good area. No freq drive on the well. Power lines not close. Size of the area well within limits

            add: supplier was going to put in latest software updates.
            Last edited by ptonsparky; 09-18-18, 01:43 PM.
            Tom
            TBLO

            Comment


              #7
              Run a metal detector

              Run a metal detector and look for buried pipes.

              Comment


                #8
                Originally posted by just the cowboy View Post
                Run a metal detector and look for buried pipes.
                That's.what the witching rods were for. Never thought of asking my brother for his detector.

                FWIW, those things do a good job. My wife's Aunt bought the first one in this area a couple years ago. At 86 she didn't want ride a mower any more.
                Tom
                TBLO

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