I agree with Ken about most forget to treat both the + and the - lines i use the same setup a 200uh choke in each lead, but i have two 470uf caps across them .. and i have had no noise at all ----- Original Message ----- From: "Ken Arck" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, April 09, 2004 1:35 PM Subject: Re: [Repeater-Builder] Fan audio
> At 02:22 PM 4/9/2004 -0400, you wrote: > > >Either run AC fans or use a different power supply than the one running > >your repeater to power those DC ones.... > > <---I'm running two 12 Vdc fans in my Micor repeater. I use a 200 uh choke > in each lead (+ & -) and a 1000 mf cap across them, on the supply side. I > then use a transistor to control 'em and I have absolutely no noise > whatsoever using this scheme. > > I suspect part of the problem is that most people forget to treat both > supply lines and noise gets introduced due to ground loops and stray currents. > > Ken > -------------------------------------------------------------------------- ---- > President and CTO - Arcom Communications > Makers of state-of-the-art repeater controllers and accessories. > http://www.ah6le.net/arcom/index.html > AH6LE/R - IRLP Node 3000 > http://www.irlp.net > > > > > > Yahoo! Groups Links > > > > > > --- > [This E-mail scanned for viruses at TNWEB LLC] > > > --- [This E-mail scanned for viruses at TNWEB LLC] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
