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<TITLE>RE: [Asterisk-Users] Background Noise</TITLE>
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<P><FONT SIZE=2>Search the archives for some more information. I think this has been covered before and Digium had a replacement offer going for a while.</FONT></P>
<P><FONT SIZE=2>If your complaint is a hissing or humming noise it has already been discovered that the TDM400 card has not been properly isolated from the PC power supply electrically. You may notice (as I do with one of my PCs) that the background noise in one ear cycles in the same cadence of the fan in the PC power supply. Switching PCs (a luxury I had and you may not) did make a difference with a different MOBO and power supply.</FONT></P>
<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: jeff.gunther@intalgent.com [<A HREF="mailto:jeff.gunther@intalgent.com">mailto:jeff.gunther@intalgent.com</A>]</FONT>
<BR><FONT SIZE=2>Sent: Thursday, August 21, 2003 03:18</FONT>
<BR><FONT SIZE=2>To: asterisk-users@lists.digium.com</FONT>
<BR><FONT SIZE=2>Subject: [Asterisk-Users] Background Noise</FONT>
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<P><FONT SIZE=2>Has anyone had any issues with background noise while using a TDM400 card?</FONT>
<BR><FONT SIZE=2>If so, what things did you tweak to resolve the issue? My * server has a</FONT>
<BR><FONT SIZE=2>single TDM400 card (2 ports enabled) with two X100P cards.</FONT>
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<P><FONT SIZE=2>Any feedback would be greatly appreciated.</FONT>
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