[arm-allstar] Noise problem

[Doug Crompton]

Mike,

 You didn't say what the noise sounded like or what FOB type you are using.
Does the noise go away when you disconnect the audio from the repeater? Do
you have the levels set correctly?

Fans and other switching devices can cause noise and couple into both the
audio lines and FOBS. I have had to experiment with positioning around
switching power supplies and small muffin style fans put out horrendous
noise sometimes. A 22-47 ohm resistor in series with the positive lead and
large cap 100uf or more on the fan side to ground usually always cures it.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*

On Thu, Apr 27, 2017 at 8:00 PM, "Meborrego via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> I just set up 2 nodes to link 2 repeaters. The nodes are using Alinco
> mobiles to talk to the repeaters. Both nodes are setup identical but I am
> getting a significant amount of noise on one of the links going into the
> network side. The receive audio from the repeater is clear with no noise.
> Has anyone experienced this issue or have any suggestions on a fix?
>
> Mike
> ABØRR
> Sent from my iPad
> _______________________________________________
>
> arm-allstar mailing list
> arm-allstar at hamvoip.org
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>
> Visit the BBB and RPi2/3 web page - http://hamvoip.org