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<DIV><FONT face=Arial size=2>I agree. It isn't ALWAYS the BEC :) </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm using a Medusa HV BEC in my Quest now with
no issues at 10S and almost 2300 watts. I use HV BEC's in my Logo 20, Logo 10,
Freedom 3D, Funtana 90. I also use lower voltage BEC's in my Maxir
heli and in several other 3S setups where I wanted 6 volts to the servos or
where I was running too many or to large servos.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think BEC's get blamed all to often as the SOURCE
of the RFI, when they are just a channel for it to get to the rx. BEC's are
often mounted close to the controller and/or batteries and the leads often run
together. This can cause the BEC to pick up the RFI from those other sources and
lead it into the RX. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Removing the BEC might indeed cure the problem, but
(maybe) its not because the BEC was generating the RFI.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have never had a BEC fail, but I have had RX
packs go dead unexpectedly or forgotten to charge them.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>In most of the cases where I had bad glitching,
chokes had little to no effect and toroids were only a little better. The most
effective cures for me have been re-locating/routing wires and components. In
one case I had a bad servo connecter that did the trick. In other cases,
unhooking everything and putting it all back pretty much how it started out
cured the problem. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Black magic :)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Larry</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=glmiller3@cox.net href="mailto:glmiller3@cox.net">George Miller</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, May 14, 2006 8:33 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] electric
interference question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Thanks to all for the input/advice. I'm
running the HVBEC's successfully in my E-FocusII, IonX, and XeroG raptor
conversion (all of which are running 10S lipo packs), but it is certainly
worth a try. I'll let you know what works!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>George</FONT></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=verne@twmi.rr.com href="mailto:verne@twmi.rr.com">Verne Koester</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, May 14, 2006 9:38
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
electric interference question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial>George,</FONT></DIV>
<DIV><FONT face=Arial>I've heard numerous reports that BEC's are bad news
for setups that use large battery packs (pattern-size versus foamy-size).
I'd suggest running a separate battery for the Rx, leave the choke in
between your ESC and Rx, and make sure your Rx is as far away from your ESC
as possible. Hope this helps and let us know how you make out.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Verne Koester</FONT></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=glmiller3@cox.net href="mailto:glmiller3@cox.net">George
Miller</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, May 13, 2006 10:48
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] electric
interference question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>OK, this isn't exactly a pattern plane, but
this group has a lot of expertise so I thought I'd ask here:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have a Showtime which I've built as an
electric with AXI 5320/28 and Jeti Advance Plus Opto 90 amp ESC with a
HVBEC for RX power. The radio is a JR 9303 TX and PCMS
receiver. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The problem is that I am getting some RF
interference. Ground range check is OK to 100 feet with antenna down
and motor off, but when motor is turned on, the rx locks out (PCM)
until I either walk back a few yards closer, or put up the antenna.
I have gone from ppm to pcm RX, put toroid "RF Filters" on the leads from
the ESC and both elevator servo's ( plane designed with elevator servo's
mounted in tail with long leads to RX). I have also braided the wires
between the motor and the ESC<FONT face="Times New Roman"
size=3>.</FONT> My next step is to try a different ESC, but I
thought I'd ask here before shelling out a couple of hundred bucks for a
new ESC. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Any other thoughts?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>George</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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