RE: [Discuss-gnuradio] APCO 25

[Matthew Kaufman]

Hm. I guess that when I think "APCO25 for hams" I think of using enough
of the real APCO25 that hams who happen to be talking to you from their
Motorola Astro can be heard and understood. If that doesn't work, why
not just toss the rest of the protocol too?

Matthew Kaufman
address@hidden

> -----Original Message-----
> From: Ettus, Matt [mailto:address@hidden 
> Sent: Friday, January 17, 2003 3:07 PM
> To: 'address@hidden'; address@hidden; address@hidden
> Subject: RE: [Discuss-gnuradio] APCO 25
> 
> 
> > You have the source code to the IMBE vocoder? Or enough
> > specification to
> > write one?
> 
> There is enough spec to write one, I believe, but that isn't 
> necessary. There are a bunch of free vocoders which could be 
> easily substituted.  It won't work for ham to fire department 
> comms, but ham to ham would be fine.
> 
> > Once you've got that part, the rest is (relatively) easy.
> > Unfortunately, the 
> > last time I poked at this problem, IMBE was patented by DVSI, 
> > and unavailable
> > (code OR specs needed to write your own) for this sort of 
> application.
> 
> Very true
>