[App_rpt-users] Noisy Quad PCI audio

Steve Agee n5zua at earthlink.net
Tue Jan 24 14:17:06 EST 2012

I went chasing something similar last month with a URI. I was experiencing a high pitched whine on TX audio. I had a spare URI so I swapped them and the problem cleared up. I sent the URI back to DMK who replaced it at no charge and they are investigating the source at this time.

  ----- Original Message ----- 
  From: Ron Simpson 
  To: APP_RPT Mail List 
  Sent: Tuesday, January 24, 2012 1:08 PM
  Subject: [App_rpt-users] Noisy Quad PCI audio

        Hey guys,

        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. 

        An interesting note: the tx audio port is quiet when first booting the node pc. Once asterisk is running the noise returns.

        Has anyone seen this before? Do I have a bad main board or did I miss something else..

        Thanks for your help!


        Ron - N6GKJ


        Ron - N6GKJ
        Sent from Yahoo! Mail on Android


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