[App_rpt-users] Activate PTT pin on CM108 without asterisk

[Corey Dean]

You could just invert it using a pnp and a 10k resistor.

Corey

> On May 9, 2015, at 9:08 AM, Skyler F <electricity440 at gmail.com> wrote:
> 
> Is there a way to tell pin 13 on the CM108 sound card to activate High vs Low? 
> 
> Although this is off topic, I thought maybe people here would know: 
> 
> I want to use a USB sound FOB for APRS with XASTIR, and I want to see if I can use a cheap sound card instead of a TNC. If nothing else, I will have to use a VOX circuit, but it would be cool if I could script XASTIR to tell the USB card to activate high/low when it PTT's. 
> 
> If anybody has experience with XASTIR, do you know if you can even use sound cards in it? Or does it have to be a TNC.
> 
> 73,
> Skyler
> KDØWHB
> 
> -- 
> Skyler Fennell
> amsatnet.info
> KDØWHB
> electricity440 at gmail.com
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