[op25-dev] chan_usrp in asterisk idea

Ryan Schilder rjschilder at gmail.com
Mon Dec 30 15:40:28 UTC 2013

Hi everyone,

After getting the repeater working in op25/asterisk i'm still stuck with
the problem of PTT control. I see on the app_rpt page there are
instructions for modifying a CM108 usb sound card (which i attempted to
order, but the order got cancelled because they are on backorder...). I was
reading this page http://yo3iiu.ro/blog/?p=324 and was wondering if
something similar could be done with the chan_usrp in asterisk (or
soundcard_tx.py in op25). The part that interested me was using a serial
connection to do the signaling for PTT.

Just a thought,

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