[App_rpt-users] app_rpt and P25 (?)
"Jeremy R. Geeo [KDØEAV]"
kd0eav at gmail.com
Wed Feb 15 21:02:48 EST 2012
FYI - This link is working now...
There does appear to be a channel driver that can be dropped into the
Asterisk source tree called chan_usrp.
Finally found it in their source tree: trunk/repeater/src/lib/
This driver appears to be a bi-directional UDP interface between
Asterisk and a USRP device (or discrimator tap type interface) using GNU
Radio. It looks like it is capable of interfacing multiple SDR P25
and/or analog channels into Asterisk. That's a big statement. Assuming
some higher horsepower hardware running all of this, it can
simultaneously receive (if I'm reading this right, it can actually
transceive) multiple P25 (voice/data) streams and FM analog streams
(each on a seperate app_rpt channel). The data stream can apparently be
sent over to wireshark to be decoded (which also has to be patched).
Haven't tried any of this yet. But with the right hardware, it appears
that this would be fully function as a P25 interface (and more) into
- Jeremy, KD0EAV
On 01/16/12 21:24, Ramesh Dhami (VA3UV) wrote:
> Hey All;
> Does anyone know anything about this project:
> This article seems to suggest some sort of 'channel driver' between
> app_rpt and P25????
> Unfortunately, the link in the article redirects to a University in
> Australia, which prompts for a user name and passwd!
> Anyone have any scoop on this?
> App_rpt-users mailing list
> App_rpt-users at ohnosec.org
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