[App_rpt-users] Audio Hum

[Jim Hertel]

Look for a bad ground ..  I had one found that the grounding system had 
a corrosive connection.


On 9/19/2018 7:49 AM, lengriff at optimum.net wrote:
> Recently, my repeater at 42690 began developing an audio ' hum ' . An
> Asterisk restart does not stop it. A reboot is required.
> It is NOT power supply related. I tried substitute supplies for the Pi and
> Repeater. The message log shows not related errors.
>
> It is software related somehow.
>
> [ short audio file attached ]
>
> Len
> WB2HKK
>
>
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