<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
On 8/27/2010 7:51 PM, <a class="moz-txt-link-abbreviated" href="mailto:cvsolar@aol.com">cvsolar@aol.com</a> wrote:
<blockquote
cite="mid:8CD14731A103A44-2F40-5775@Webmail-m123.sysops.aol.com"
type="cite"><font size="2" color="black" face="arial">
<div>Help!</div>
<div> Has anyone delt with RF interference between a dog
control device and GVFX3524. It seems that some frequency in
the inverter (or maybe the FlexMax 80) is cancelling the
emitted signal from a dog control device which shocks the dog
when the signal gets weak (dog too far from house). Every
time the inverter starts to sell, the collar on the dog starts
shocking the animal. Our only possible solution so far is to
build a Faraday cage around the inverter to see if the
interference is reduces sufficiently. I have been looking at
brass mesh, aluminum window screen, and copper mesh. Any
ideas?</div>
<div> </div>
<div>John Blittersdorf</div>
<div>Central Vermont Solar & Wind. <br>
<br>
</div>
<br>
</font></blockquote>
<br>
First, I am quite surprised (Shocked actually !), that the design
of this dog<br>
shock collar would allow it to shock without the proper coding from
the<br>
transmitter, weak signal or not.<br>
I would not rule out calling the company that makes the shock collar
too,<br>
and their EMI susceptibility. Maybe they have seen this problem
before<br>
and can have you change a code or might even replace with more
secure unit ?<br>
The interference that you might get from an inverter or charge
controller just<br>
shouldn't have this effect.<br>
<br>
The lower the frequency of the dog collar signal, the smaller the
mesh size<br>
you can get away with. But that assumes the RFI is coming directly
from<br>
the inverter or controller itself. It's most likely coming from the
wiring.<br>
<br>
One thing to try, that is, to rule out (or in) the charge controller
is to lower<br>
the sell voltage so that it will sell for a few moments at night
(from the<br>
batteries), when the CC would not be supplying power and radiating.<br>
<br>
Hopefully you can test this without the use of the dog having to
tell you<br>
when it is being shocked !<br>
<br>
That's my input for tonight. I'm interested in what the dog collar
company<br>
has to say, for sure.<br>
<br>
boB<br>
<br>
<br>
<br>
<br>
<br>
<blockquote
cite="mid:8CD14731A103A44-2F40-5775@Webmail-m123.sysops.aol.com"
type="cite"><font size="2" color="black" face="arial">
<br>
</font>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
List sponsored by Home Power magazine
List Address: <a class="moz-txt-link-abbreviated" href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a>
Options & settings:
<a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
List-Archive: <a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a>
List rules & etiquette:
<a class="moz-txt-link-abbreviated" href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a>
Check out participant bios:
<a class="moz-txt-link-abbreviated" href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a>
</pre>
</blockquote>
<br>
</body>
</html>