[arm-allstar] Heartbeat STOP ?

[Doug Crompton]

In addition RF fields can cause this. Make sure your USB cable and or cable
to the radio is not an antenna. Loop up any unused length and add ferrites
to them.

If this happens, and it should not, simply pull out the USB cable on either
end and reinstall and it will recover.

*73 Doug, WA3DSP*
*http://wa3dsp.org <http://wa3dsp.org>*

On Fri, Apr 10, 2020 at 7:26 PM "David McGough via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

>
> Hi Luc,
>
> What type of USB fob are you using?
>
> I've had this problem in the past with various different adapters. My
> problems were traced to power surges (like during lightning storms),
> disrupting the USB bus.
>
> For power surges, make sure you've got a solid ground path all the
> way from the RPi power source to the radio/repeater. A single-point ground
> is ideal to minimize ground loops. I use a lot of DMK URI adapters and
> I also added a ground wire to all my adapters in production use, as can be
> seen here:
>
> https://hamvoip.org/kenwood-TKR/P1030817.JPG
> https://hamvoip.org/kenwood-TKR/P1030820.JPG
>
> Minimize the length of the USB cables, carefully placing the RPi near
> the radio/repeater. Also, using a DC-DC 5V power supply for the RPi is the
> strategy I use, again tying the power supply negative lead to the
> single-point ground.  I'll locate photos showing my typical configuration.
>
> For me, this methodology evolved over many years of trial and testing.
> Now, I've not any USB issues for several years.
>
> 73, David KB4FXC
>
>
>
>
> On Fri, 10 Apr 2020, "Luc Drolet VE2LUQ via ARM-allstar" wrote:
>
> > Hello everyone,
> >
> > I have a little problem with a Repeater,
> > sometimes the green LED stops "Heartbeat"
> > and to put it back at heart beat I have to restart the Raspberry Pi to
> put it back on the air.
> >
> > I don't understand why the heartbeat stops beating?
> >
> > Thank you for your help
> >
> > Luc
> > VE2LUQ
> >
> >
> > _______________________________________________
> >
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> >
> > Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
> >
>
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>