[arm-allstar] TX loop

Wed May 3 11:56:10 EST 2017

Like George, I found that I could not use the "rubber duck" antenna that
came with the 888.  It caused sever RF getting into the FOB which cases a
number of issues.

If you are using the antenna that came with the 888, try using an external
antenna (in my case a 1/4 ground plane).  This solved all of my RF issues.

Chris,  w0anm

On Sun, Apr 30, 2017 at 9:49 PM, "George Gianios via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Hi Bryan,
> If the problem continues and you can't find a fix -- I'll send you an
> external antenna to try --
> It does sound like an RF problem --
> George
> WB3DZZ
> -----Original Message-----
> From: arm-allstar [mailto:arm-allstar-bounces at hamvoip.org] On Behalf Of
> "Bryan St Clair via arm-allstar"
> Sent: Sunday, April 30, 2017 10:04 PM
> To: ARM Allstar
> Cc: Bryan St Clair; Doug Crompton
> Subject: Re: [arm-allstar] TX loop
>
> While testing yesterday, I was connected to external power, no battery.
>
> Today, I am using 2 charged batteries.  (Wanted to make sure it wasn't
> power
> source related.) Batteries for testing only.
>
>
>
> On Sun, Apr 30, 2017 at 7:01 PM, "Doug Crompton via arm-allstar" <
> arm-allstar at hamvoip.org> wrote:
>
> > The 888 TX is also touchy about power. Have you tried another power
> > source
> > - battery, etc?
> >
> >
> > *73 Doug*
> >
> > *WA3DSP*
> >
> > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
> >
> > On Sun, Apr 30, 2017 at 9:51 PM, "Bryan St Clair via arm-allstar" <
> > arm-allstar at hamvoip.org> wrote:
> >
> > > I have tried 2 frequencies and both with different PL and no PL.
> > >
> > > I just increased the rxondelay to 8 and no loop as of yet.  Still
> > > testing to confirm.
> > >
> > > On Sun, Apr 30, 2017 at 6:48 PM, "Doug Crompton via arm-allstar" <
> > > arm-allstar at hamvoip.org> wrote:
> > >
> > > > Bryan,
> > > >
> > > >  Have you tired other frequencies? Does it do it when you manually
> > > > key
> > > the
> > > > node 888? Push it manual PTT.
> > > >
> > > >
> > > > *73 Doug*
> > > >
> > > > *WA3DSP*
> > > >
> > > > *http://www.crompton.com/hamradio
> > > > <http://www.crompton.com/hamradio>*
> > > >
> > > > On Sun, Apr 30, 2017 at 9:06 PM, "Bryan St Clair via arm-allstar"
> > > > < arm-allstar at hamvoip.org> wrote:
> > > >
> > > > > Yes, in usb (not inverted) and COS shows clear and Keyed when I
> > > > > use
> > an
> > > > > outside HT to the node.
> > > > >
> > > > > When the loop happens, I see a fast toggle of COS comp, COS
> > > > > input and
> > > > PTT.
> > > > >  (Radio I am using right now is one from George.)
> > > > >
> > > > > It doesn't always loop, it can be keyed up 10 times and act
> normally.
> > > > Then
> > > > > a loop on next keyup.
> > > > >
> > > > > On Sun, Apr 30, 2017 at 6:01 PM, "Doug Crompton via arm-allstar"
> > > > > < arm-allstar at hamvoip.org> wrote:
> > > > >
> > > > > > Bryan,
> > > > > >
> > > > > >   Are you sure you have the simppleusb-tune-menu setup correctly?
> > > > cosfrom
> > > > > > should be usb. When you talk to the node RF from another radio
> > > > > > the
> > > cos
> > > > > > input should show keyed. In quiescent state it should show clear.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > *73 Doug*
> > > > > >
> > > > > > *WA3DSP*
> > > > > >
> > > > > > *http://www.crompton.com/hamradio <http://www.crompton.com/
> > hamradio
> > > >*
> > > > > >
> > > > > > On Sun, Apr 30, 2017 at 8:51 PM, "Bryan St Clair via
> > > > > > arm-allstar" < arm-allstar at hamvoip.org> wrote:
> > > > > >
> > > > > > > Doug,
> > > > > > >
> > > > > > > Yes, I have duplicated it on 2 radios, 2 different locations
> > > > > > > when
> > > > > > testing.
> > > > > > >
> > > > > > > The loop is often 2-3 key ups, but in testing now, I was
> > > > > > > able to
> > > get
> > > > 21
> > > > > > key
> > > > > > > ups.
> > > > > > >
> > > > > > > The 888 is as far away as the cables allow.
> > > > > > >
> > > > > > > I updated the rxondelay to 5 and I still get the loop.
> > > > > > >
> > > > > > > I don't think its related, but this node has lost its
> > > > > > > callsign in
> > > the
> > > > > > voice
> > > > > > > ID.  Spells out Unknown option now.
> > > > > > >
> > > > > > > On Sun, Apr 30, 2017 at 5:39 PM, "Doug Crompton via
> arm-allstar"
> > <
> > > > > > > arm-allstar at hamvoip.org> wrote:
> > > > > > >
> > > > > > > > Bryan,
> > > > > > > >
> > > > > > > >  You did not mention, do you have more than one 88? If so
> > > > > > > > does
> > > > > another
> > > > > > > one
> > > > > > > > do the same thing? I doubt very much it is the SW. It
> > > > > > > > should
> > not
> > > be
> > > > > > doing
> > > > > > > > that but there is a setting in the simpleusb-tune-menu
> > > > > > > > called
> > > > > > rxondelay.
> > > > > > > > This delay s COS by 20ms  per step. Setting it to 5 would
> > > > > > > > be
> > > 100ms.
> > > > > You
> > > > > > > can
> > > > > > > > see if that solves the problem but usually you will find
> > > > > > > > it is
> > an
> > > > RF
> > > > > > > issue
> > > > > > > > and if you get the 888 antenna away from the rest of the
> > > > > > > > system
> > > it
> > > > > > might
> > > > > > > > clear up.
> > > > > > > >
> > > > > > > >
> > > > > > > > *73 Doug*
> > > > > > > >
> > > > > > > > *WA3DSP*
> > > > > > > >
> > > > > > > > *http://www.crompton.com/hamradio
> > > > > > > > <http://www.crompton.com/
> > > > hamradio
> > > > > >*
> > > > > > > >
> > > > > > > > On Sun, Apr 30, 2017 at 7:39 PM, "Bryan St Clair via
> > > arm-allstar" <
> > > > > > > > arm-allstar at hamvoip.org> wrote:
> > > > > > > >
> > > > > > > > > Hello all,
> > > > > > > > >
> > > > > > > > > I have a node on an HT that is getting a loop.
> > > > > > > > >
> > > > > > > > > v1.5 full updates.
> > > > > > > > > Pi3
> > > > > > > > > 888 HT
> > > > > > > > > TSQL 107.2 on node HT
> > > > > > > > > Verizon MiFi connection.
> > > > > > > > > USB fob
> > > > > > > > > Battery pack or with battery eliminator
> > > > > > > > >
> > > > > > > > > The sequence of events:
> > > > > > > > >
> > > > > > > > > Take outside HT and simply key up the node with a *70.
> > > > > > > > > Node
> > is
> > > > not
> > > > > > > > > connected to another node, local repeat only.
> > > > > > > > >
> > > > > > > > > Node responds with repeat only message.  Tx drops.  The
> > > > > > > > > node
> > > will
> > > > > > then
> > > > > > > TX
> > > > > > > > > again, for .5 second, no sounds drops and repeats this
> > > > > > > > > TX
> > loop
> > > > 2-5
> > > > > > > times.
> > > > > > > > > When I am connected to a network, it can repeat as many
> > > > > > > > > as 15
> > > > > times.
> > > > > > > > > (observed)
> > > > > > > > >
> > > > > > > > > I have removed PL as a test, no change.
> > > > > > > > >
> > > > > > > > > Before I wipe the SD to be sure I don't have a config
> > > > > > > > > issue I
> > > am
> > > > > not
> > > > > > > able
> > > > > > > > > to find, I wanted to ask here for ideas.
> > > > > > > > >
> > > > > > > > > Thanks
> > > > > > > > >
> > > > > > > > > --
> > > > > > > > > Bryan
> > > > > > > > > K6CBR
> > > > > > > > > Allstar Base: 43918
> > > > > > > > > Allstar Mobile: 43913
> > > > > > > > > www.k6cbr.us
> > > > > > > > > QRZ <http://www.qrz.com/db/K6CBR>
> > > > > > > > > _______________________________________________
> > > > > > > > >
> > > > > > > > > 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
> > > > > > > > >
> > > > > > > > >
> > > > > > > > _______________________________________________
> > > > > > > >
> > > > > > > > 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
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > Bryan
> > > > > > > K6CBR
> > > > > > > Allstar Base: 43918
> > > > > > > Allstar Mobile: 43913
> > > > > > > www.k6cbr.us
> > > > > > > QRZ <http://www.qrz.com/db/K6CBR>
> > > > > > > _______________________________________________
> > > > > > >
> > > > > > > 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
> > > > > > >
> > > > > > >
> > > > > > _______________________________________________
> > > > > >
> > > > > > 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
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Bryan
> > > > > K6CBR
> > > > > Allstar Base: 43918
> > > > > Allstar Mobile: 43913
> > > > > www.k6cbr.us
> > > > > QRZ <http://www.qrz.com/db/K6CBR>
> > > > > _______________________________________________
> > > > >
> > > > > 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
> > > > >
> > > > >
> > > > _______________________________________________
> > > >
> > > > 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
> > > >
> > >
> > >
> > >
> > > --
> > > Bryan
> > > K6CBR
> > > Allstar Base: 43918
> > > Allstar Mobile: 43913
> > > www.k6cbr.us
> > > QRZ <http://www.qrz.com/db/K6CBR>
> > > _______________________________________________
> > >
> > > 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
> > >
> > >
> > _______________________________________________
> >
> > 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
> >
>
>
>
> --
> Bryan
> K6CBR
> Allstar Base: 43918
> Allstar Mobile: 43913
> www.k6cbr.us
> QRZ <http://www.qrz.com/db/K6CBR>
> _______________________________________________
>
> 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
>
> _______________________________________________
>
> 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
>