[arm-allstar] DTMF tones not decoded properly

Sun Mar 31 18:14:01 EDT 2019

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
>> > > > > > >
>> > > > > > _______________________________________________
>> > > > > >
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>> > > > > >
>> > > > > > Visit the BBB and RPi2/3 web page - http://hamvoip.org
>> > > > > >
>> > > > > _______________________________________________
>> > > > >
>> > > > > ARM-allstar mailing list
>> > > > > ARM-allstar at hamvoip.org
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>> > > > >
>> > > > > Visit the BBB and RPi2/3 web page - http://hamvoip.org
>> > > > >
>> > > > _______________________________________________
>> > > >
>> > > > ARM-allstar mailing list
>> > > > ARM-allstar at hamvoip.org
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>> > > >
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>> > > >
>> > > _______________________________________________
>> > >
>> > > 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
>> > >
>> > _______________________________________________
>> >
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>> >
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>> >
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>>
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>>
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>>
>