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I guess you could always apply a 1:1 600 Ohm isolation transformer. You can even<br>get one of those at Radio Shack (still). <br><br>JIM<br><br><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">Date: Tue, 24 Jan 2012 13:44:52 -0600<br>From: kd0eav@gmail.com<br>To: app_rpt-users@ohnosec.org<br>Subject: Re: [App_rpt-users] Noisy Quad PCI audio<br><br>
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I've had issues like that before with those VIA boards - it wasn't
running the PCI card (it was [past tense] actually an IRLP node)...
I never did succeed at eliminating the noise - even swapping the
power supply didn't change much. Just having the PC hooked up to the
contoller was enough for the noise to appear - I didn't even need to
bridge the audio over. <br>
<br>
73<br>
<br>
- Jeremy, KD0EAV<br>
<br>
On 01/24/12 13:08, Ron Simpson wrote:
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Hey guys,<BR>
I am running an 800mhz VIA ITX Board and a quad pci
card. The board is 2004 vintage. I have a distinct noise
on TX audio both through my node and remote base. I have
shielded cables to both remotes, I have replace the
power supply and greatly reduced the high pitch noise. <BR>
An interesting note: the tx audio port is quiet when
first booting the node pc. Once asterisk is running the
noise returns.<BR>
Has anyone seen this before? Do I have a bad main board
or did I miss something else..<BR>
Thanks for your help!<BR>
73,<BR>
Ron - N6GKJ<br>
<br>
<br>
<BR>
73,<BR>
Ron - N6GKJ<br>
Sent from Yahoo! Mail on Android<BR>
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