[arm-allstar] radioless node dtmf problem

[B Harvey]

Alan,

  I just bought an Alinco radio with the same mic. I noticed that the DTMF
switch on the mic needed to be switched back and forth once or twice to get
it to work. I suspect it wasn't fully engaged into the DTMF position.

      As I originally started to build a node with a Baofeng, I found that
the the DMK - URI wasn't receiving a strong enough audio signal from the
radio (e.g. DTMF tones) for node computer (RPi) to recognize. I don't
recall the wireless node schematic from memory but if you're also using a
DMK  - URI, you may need to drive pin 9 via a DC blocking capacitor instead
of pin 21. ( The folks here on Hamvoip clued me in on that one.


Brian / KK6DOQ

On Mon, Apr 22, 2019 at 10:06 AM "Alan Matthews via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> hi group
>
> I have made a radioless node and it works fine. However I am using an
> alinco EMS-57 dtmf mike powered by 5 volts from the usb, I am not sending
> any dtmf tones. Is there a setting in the software that needs adjusting?,
> or am i overlooking something. I assume this mike should work with dtmf for
> the radioless node.
>
> any help would be appreciated.
>
> regards Alan
>
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