<table cellspacing='0' cellpadding='0' border='0' background='none' style='font-family:arial;font-size:10pt;color:#000000;background-color:#ffffff;width:100%;'><tr><td valign='top' style='font: inherit;'><P>I have not used a BEC in anything larger than ~ 500 watts. (I have never had anything larger than 500w yet, either!). I have used the ESC's built-in BEC as well as a seperate BEC and have never had a problem.</P>
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<P>However, the problems that I have heard of is with the higher powered setups, which is interference with the receiver. This is one reason for the opto-isolated throttle input to the ESC - to eliminate an electrical connection between the ESC and receiver. In fact, it would not be a bad idea to have a fiber-optic cable running between the two, but maybe that is overkill.</P>
<P> </P>
<P>The 72MHz receivers would be more susceptible to this type of interference, but it is not inconceivable that the electrical noise would not interfere with the decoder in a 2.4GHz RX, or the servos for that matter.<BR><BR>Bob R</P>
<P><BR>--- On <B>Fri, 6/6/08, Stuart Chale <I><schale@optonline.net></I></B> wrote:<BR></P>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">From: Stuart Chale <schale@optonline.net><BR>Subject: [NSRCA-discussion] BEC<BR>To: "General pattern discussion" <nsrca-discussion@lists.nsrca.org><BR>Date: Friday, June 6, 2008, 3:43 PM<BR><BR><PRE>Is anyone using a BEC on their electric powered models? I am sure this
may have been discussed before but I was just reading a general article
on them in Sport Flyer and began wondering why not?
Compared to a 2 cell LIPO and regulator the BEC is about the same weight
as the regulator (Medusa Research as an example 20 gms) and you lose the
battery. I run a 2 cell TP 910 mah pack which weights 44 gms. Seems
like an easy weight loss. Is there a down side to using a modern BEC
designed for 10 cell lipo packs? Hard to believe you could have a
catastrophic failure in the flight packs without a fire that would drive
the voltage below that which the BEC would no longer work.
Thanks
Stuart C.
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