[arm-allstar] DTMF tones not decoded properly

B Harvey bharveytwo at gmail.com
Mon Apr 1 09:47:22 EDT 2019 

Doug,
  Huh, I hadn't heard of a power problem and it seems kind of surprising. I
figured heat dissipation would be the least of the problems with that model
give that it's 75% heat sink. I don't want to be the one to ignore sound
advice so I'll scratch that one of the list. I'm about 3/4 of the way done
with a radioless node so I should be able to give my URi/RPi a test as soon
as I get time to finish. If everything goes well, I can move on to a node
radio. I did see the 70cm Alinco in stock at a few of the HRO stores but I
rather enjoy a walk in to the toy store. I'll let you know how things pan
out with the radioless node.

Brian/KK6DOQ

On Sun, Mar 31, 2019 at 3:14 PM "Doug Crompton via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Brian,
>
>  The problem with the TYT's is TX failures it appears even on low power. I
> am not sure if that was corrected but I found intermittent surface mount
> problems even though internally it looks very well made.
>
> The HRO in stock I quoted was for my store but you can order it from any
> store. It will be shipped from the store that has it.
>
>
> *73 Doug*
>
> *WA3DSP*
>
> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>
>
> On Sun, Mar 31, 2019 at 4:55 PM B Harvey <bharveytwo at gmail.com> wrote:
>
> > Doug,
> >
> >  Okay, thanks for the advice. I thought about heading over to the local
> > HRO yesterday but the website said they didn't have any 70cm models in
> > stock. Since I'm pretty sure I have all of the parts on hand, I may try
> to
> > cobble together a radioless node first in order to test the URI and RPi I
> > have so far. As an aside, what problems have popped up with the TYTs? Is
> > that the gobbled display thing? I've heard of it but didn't know it was
> > that common or specifically associated with Allstar. As I mentioned, I
> have
> > one for 220Mhz but don't use it regularly. I would expect my node to be
> on
> > 24/7/365.
> >
> >
> > Brian / KK6DOQ
> >
> >
> > On Sat, Mar 30, 2019 at 3:31 PM "Doug Crompton via ARM-allstar" <
> > arm-allstar at hamvoip.org> wrote:
> >
> >> Brian,
> >>
> >>  I f you want a solid easy to interface radio I would go with the Alinco
> >> DR-x35  series. It has a 9 pin D connector on the back. The TYT's have
> >> been
> >> problematic for extended use Allstar. Some have the 9 Pin like the
> alincos
> >> and other do not but you can easily install one as there is internal
> >> provision for it.
> >>
> >> Ham Radio outlet has the Alinco's and they are in stock.
> >>
> >>
> >> *73 Doug*
> >>
> >> *WA3DSP*
> >>
> >> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
> >>
> >>
> >> On Sat, Mar 30, 2019 at 2:52 PM "B Harvey via ARM-allstar" <
> >> arm-allstar at hamvoip.org> wrote:
> >>
> >> > Doug,
> >> >
> >> >    I didn't really expect something to be wrong with the DMK URI. As
> for
> >> > disconnecting the speaker, I did it mainly to make assembly and
> >> disassembly
> >> > easier, I can still use the lapel mic. I think my next step may be to
> >> > recheck the solder joints. If that doesn't work, I'm not sure where to
> >> go
> >> > with the UV 82.
> >> >
> >> >    As far as radios go, what radios are you aware of that are popular
> >> and
> >> > work well as a node radio? I'm not married to the idea of using an HT
> >> as a
> >> > node radio. I just happened to have the UV 82 laying around and rarely
> >> > used. I don't intend to go mobile with this node rather, it'd stay at
> >> home
> >> > are remain permanently wired in place. I have a TYT 9000 in 220mhz and
> >> it
> >> > seems like an okay radio. I was thinking of the same model in 70cm as
> I
> >> > understand they have a header that allows aux connections. It just
> >> needs to
> >> > be brought to the outside of the radio. The Alinco DR435T is also a
> >> > reputable choice from what I hear but no one seems to stock them.   I
> >> like
> >> > Kenwood mobiles as well. Are you aware of any of those that would work
> >> > without major surgery such as realignment.? (I don't have the tools
> for
> >> > that)
> >> >
> >> >
> >> > Brian / KK6DOQ
> >> >
> >> > On Fri, Mar 29, 2019 at 10:34 PM "Doug Crompton via ARM-allstar" <
> >> > arm-allstar at hamvoip.org> wrote:
> >> >
> >> > > Brian,
> >> > >
> >> > >  Not sure what to say. If you have taken the 4.7 K resistor to pin
> 21
> >> out
> >> > > and it still needs to be a max level with boost on there is
> something
> >> > > different in that radio or possibly the DMK is not functioning
> >> properly
> >> > > which would be unusual. Minus test equipment like a scope it would
> be
> >> > hard
> >> > > to diagnose. BTW there is no reason to disconnect the speaker. It is
> >> good
> >> > > to leave it connected for testing. All you need to do is turn it
> down.
> >> > The
> >> > > volume control should have no effect on the rx level if you
> connected
> >> to
> >> > > the high side of the pot.
> >> > >
> >> > >
> >> > > *73 Doug*
> >> > >
> >> > > *WA3DSP*
> >> > >
> >> > > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio
> >*
> >> > >
> >> > > On Sat, Mar 30, 2019 at 12:28 AM "B Harvey via ARM-allstar" <
> >> > > arm-allstar at hamvoip.org> wrote:
> >> > >
> >> > > > Doug,
> >> > > >
> >> > > >
> >> > > >    This is the link to the Hamvoip.org  tutorial for using an
> >> Baofeng
> >> > UV
> >> > > 82
> >> > > > as a node radio. ( https://hamvoip.org/hamradio/UV82_mod/
> >> )According
> >> > to
> >> > > > it,
> >> > > > there is a 4.7Kohm resistor in series with the lead to Pin 21. I
> >> > > confirmed
> >> > > > this and measured the resistance to confirm before I removed it.
> >> (FYI,
> >> > > > there's also one in series with the transmit line. I thought
> >> something
> >> > > > seemed off as well. I would have expected plenty of gain
> especially
> >> > with
> >> > > > the setting at 999 and no resistor. Although I've disconnected the
> >> > > speaker,
> >> > > > I have checked the volume with a lapel/mic and all seems normal.
> >> This
> >> > > was a
> >> > > > working radio and I hadn't detected any problems prior to setting
> >> it up
> >> > > as
> >> > > > a node radio. I did a resistance check of all of the DB25 pins to
> >> radio
> >> > > > solder points. I'm within  a few percent of 4.7Kohms on the RX and
> >> TX
> >> > > lines
> >> > > > and about 2 ohms on the ground. Since the PTT and COS are
> working, I
> >> > > didn't
> >> > > > measure those. I suppose the tutorial could be wrong and I'm on
> the
> >> > > ground
> >> > > > side of the volume pot but I'd expect no signal at all from there.
> >> > > >
> >> > > >
> >> > > > Brian / KK6DOQ
> >> > > >
> >> > > > On Fri, Mar 29, 2019 at 6:14 PM "Doug Crompton via ARM-allstar" <
> >> > > > arm-allstar at hamvoip.org> wrote:
> >> > > >
> >> > > > > Brian,
> >> > > > >
> >> > > > >  Since this is a homebrew project please tell me what resistors
> >> you
> >> > > have
> >> > > > in
> >> > > > > the RX path. Generally audio is taken from the high side of the
> >> > volume
> >> > > > pot
> >> > > > > then fed to pin 21 of the DMK URI. I forget if that is what you
> >> are
> >> > > using
> >> > > > > for a FOB? The 'B' boost item in simpleusb-tune-menu needs to be
> >> > > enabled.
> >> > > > > Something is not right if you need to be at 999 and you are
> >> directly
> >> > > > > connected from that point in the radio to the FOB. You should be
> >> able
> >> > > to
> >> > > > > achieve a 5khz level on the item 2 bar graph with a setting of
> >> around
> >> > > > > 500-700.
> >> > > > >
> >> > > > >
> >> > > > > *73 Doug*
> >> > > > >
> >> > > > > *WA3DSP*
> >> > > > >
> >> > > > > *http://www.crompton.com/hamradio <
> >> http://www.crompton.com/hamradio
> >> > >*
> >> > > > >
> >> > > > > On Fri, Mar 29, 2019 at 8:56 PM "B Harvey via ARM-allstar" <
> >> > > > > arm-allstar at hamvoip.org> wrote:
> >> > > > >
> >> > > > > > Don,
> >> > > > > >
> >> > > > > >     I checked the codeplugs for the radios I've been using.
> All
> >> are
> >> > > set
> >> > > > > to
> >> > > > > > wideband so I don't think I have a problem there. In the
> simple
> >> USB
> >> > > > tune
> >> > > > > > menu I checked the levels and with the default settings, for
> >> RX, I
> >> > > was
> >> > > > > > barely moving the "VU" meter. Even when I increased the
> setting
> >> to
> >> > > > 999, I
> >> > > > > > didn't get much more that 1/3 of the way to the 3khz mark.
> >> However,
> >> > > > after
> >> > > > > > raising it to 999, I could get proper decodes of all of the
> >> numeric
> >> > > > > digits
> >> > > > > > in the CLI menu. My next step was to remove the 4.7Kohm
> >> resistor in
> >> > > the
> >> > > > > RX
> >> > > > > > line as shown in the UV 82 node radio tutorial on Hamvoip.
> That
> >> > > seemed
> >> > > > to
> >> > > > > > make no difference at all. Even though I get proper decodes in
> >> CLI,
> >> > > > they
> >> > > > > > still don't resolve to working commands over the Allstar
> >> network.
> >> > Any
> >> > > > > other
> >> > > > > > suggestions? As I mentioned earlier, pre-emphasis and
> >> de-emphasis
> >> > are
> >> > > > > > currently disabled.
> >> > > > > >
> >> > > > > > Brian / KK6DOQ
> >> > > > > >
> >> > > > > > On Fri, Mar 29, 2019 at 1:18 PM "Don Backstrom - AA7AU via
> >> > > > ARM-allstar" <
> >> > > > > > arm-allstar at hamvoip.org> wrote:
> >> > > > > >
> >> > > > > > > On Fri 29-Mar-19 11:37, "B Harvey via ARM-allstar" wrote:
> >> > > > > > > > I can't test actual
> >> > > > > > > > levels or wide / narrow mode so I'll have to wait until I
> >> get
> >> > > home
> >> > > > to
> >> > > > > > try
> >> > > > > > > > those out.
> >> > > > > > >
> >> > > > > > >         From our tech write-up: "If you are having issues
> ...
> >> and
> >> > > are
> >> > > > > > > experiencing audio levels or DTMF decoding/encoding
> >> difficulties,
> >> > > > use a
> >> > > > > > > service monitor to check to see if the module is actually
> >> > programed
> >> > > > to
> >> > > > > > > Wideband mode"
> >> > > > > > >
> >> > > > > > > > Another thing that occurred to me is that perhaps I'm too
> >> close
> >> > > > > > > > to the node when I'm transmitting from my HT and I may
> have
> >> > some
> >> > > > > > de-sense
> >> > > > > > > > thing going on.
> >> > > > > > >
> >> > > > > > >         That obviously can also give you issues. Also
> remember
> >> > > *low*
> >> > > > > > power.
> >> > > > > > >
> >> > > > > > >         Doug and David are the experts here, especially on
> all
> >> > the
> >> > > > > other
> >> > > > > > > settings. I'm just an interested HamVoip user chiming in on
> >> DTMF,
> >> > > as
> >> > > > we
> >> > > > > > > did battle with those issues for quite some time before
> >> > discovering
> >> > > > the
> >> > > > > > > 818 probs and others like issues.
> >> > > > > > >
> >> > > > > > >         One other note on DTMF: on many HTs when you PTT and
> >> then
> >> > > key
> >> > > > > > your
> >> > > > > > > DTMF
> >> > > > > > > code in you get output from your HT speaker - which *can*
> >> lead to
> >> > > > real
> >> > > > > > > feedback probs as your mike is open and listening during
> PTT.
> >> > Find
> >> > > > the
> >> > > > > > > setting and disable tone output from DTMF entry. Also, watch
> >> your
> >> > > > > > > background noise/conversation/etc at anytime you are using
> PTT
> >> > even
> >> > > > if
> >> > > > > > > just to key in DTMF - you're OTA!
> >> > > > > > >
> >> > > > > > >         Good luck,
> >> > > > > > >
> >> > > > > > >         - Don - AA7AU
> >> > > > > > > _______________________________________________
> >> > > > > > >
> >> > > > > > > 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
> >> > > > > >
> >> > > > > _______________________________________________
> >> > > > >
> >> > > > > 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
> >> > > >
> >> > > _______________________________________________
> >> > >
> >> > > 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
> >> >
> >> _______________________________________________
> >>
> >> 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
>

More information about the ARM-allstar mailing list