[arm-allstar] Pi3 All Star Repeater Controller

Doug Crompton wa3dsp at gmail.com
Sun Feb 23 17:19:43 EST 2020


Ron,

 Setting audio levels is really not that hard. You always start out with
the RX level. RX is the audio coming from your repeater receiver and
ultimately whomever transmits to it. You set the RX level with the bar
graph display, item 2 of simpleusb-tune-menu. It should go to 5-6 Khz on
peaks. This is also dependent on the radio that you use so try several so
you get an average. It is OK if there are occasional peaks slightly higher.
RX level effects the level to the repeater and to any connected node.

The RX level is also effected by rx boost. Generally you want to try to get
the level somewhere in the center of the 1-999 range. Turning boost on or
off will shift the level up or down. If in either case the level is way
down and still to loud or distorted you may need to add a resistive divider
to reduce the level.

Then you set the TX level. TX level ONLY effects the level to your repeater
transmitter Not anything that goes out over any connections. You can set
this level with a service monitor on the repeater transmitter or by ear
comparing the level against a known level of another system or repeater
that was setup properly. Again if the TX level is to high or distorted with
a very low level setting you may need to use a resistive divider to get it
in range.

There is also a telemetry level setting but this should only be used to
adjust telemetry levels if you prefer them lower or higher AFTER you do the
above adjustments.


*73 Doug*

*WA3DSP*

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

If in any case you

On Sun, Feb 23, 2020 at 5:06 PM "Ron Gilson via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> I'm using 2 Motorola M1225's (45 watt running at 18 watts & fans) with a
> duplexer as a portable suite case repeater.  I was using a homemade
> controller with simple interface no amplification.  No problems.  Using a
> Pi3 set to duplex=2, the repeat audio is great with settings 2 to 425 and 3
> to 350.  If I use a voltage divider to the TX radio wont I be reducing both
> the repeat and all other audio ie *73XXXX ?  I did lower 2 to 300 with the
> dtmf still not working.  I read some ware of a setting to reduce the ID
> level but can't find this in my notes and not sure this will also correct
> the dtmf problem.  Since the repeat audio is ok and the ID is distorted and
> the DTMF not working, I think something common to levels other than 2 & 3
> might be the answer ?  Unfortunately, I'm not good on Pi's yet.  still
> learning.  TX deviation is set to 4.5 khz with a mic and this level is the
> same with repeat audio.  Thanks for your help.  73's
> Ron
>
> On Sat, Feb 22, 2020 at 10:46 PM "Larry via ARM-allstar" <
> arm-allstar at hamvoip.org> wrote:
>
> > Ron.... a bit more info is needed to understand your hardware .
> >
> > Are you using 2 radios one for RX and one for TX? or are you controlling
> > an actual duplex repeater system?
> > What you are using for isolation filter/duplexer between tx and RF
> > frequencies in the Duplex situation
> >
> > If you describe the radios or repeater you are trying to control with
> > Allstar it would give folks a better grasp of what devices are used in
> > your system.
> > Allstar as a Controller is one thing. What it controls and it's
> > components are another.
> >
> > Larry - N7FM
> >
> >
> >
> > On 2/22/20 6:01 PM, "Ron Gilson via ARM-allstar" wrote:
> > > Hi all.  I've built up a repeater controller using All Star as a
> > > controller.  The ID seems distorted and the DTMF does not function?
> > > Repeated audio is great *80 etc. seems to be ignored even though the
> > tones
> > > are clean on the receiver?  I'vd tried different portables but nothing
> > > seems to work.  Any suggestions would be greatly appreciated.  Thanks
> for
> > > your help.
> > > Ron
> > > _______________________________________________
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> > >
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> > >
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> >
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