[arm-allstar] DMK URI mic in

[Doug Crompton]

Simon,

  Mic out should go to pin 21.  The speaker to 22 through an amplifier. The
grounds can connect together. Also remember that PTT from the mic goes to
COS on the URI. You do not use PTT coming FROM the URI. You also need to
wire power from the FOB +5 to the mic and you could also use it to power an
amplifier for a speaker. See the radioless node howto from the hamvoip.org
web page. -

https://hamvoip.org/hamradio/USBFOB_without_radio/



*73 Doug*

*WA3DSP*

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

On Fri, Dec 9, 2016 at 3:27 PM, "Simon Keys via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Hi all, hope you are well.
>
> I am building a radioless node and having a few challenges getting the mic
> to work. I'm using the Alinco EMS-57.
>
> Should I wire the mic out (Pin 1) to Pin 9 or Pin 21 of the URI?
>
> And do I need to use the separate "mic ground" (Pin 7) and if so do I just
> short that to the chassis/cable ground?
>
> Many thanks for the help you provide the Allstar community.
>
> Regards
> Simon ZL1OE
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