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Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device
From: |
Jeff Brower |
Subject: |
Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device |
Date: |
Wed, 19 Mar 2008 07:02:08 -0600 |
Rick-
> > I am also thinking of writing a APCO P25 Voice to AMBE2000 frame converter
> > and see
> > if the device can decode P25 as well. This may be a general IMBE and
> > AMBE codec.
> >
>
> I hope so. I looked at this a while back. What concerned me most was the
> AMBE2000/2020 documentation seemed to omit P25 style IMBE compatibility.
> Compare the docs to another DVSI product - the VC55 - to see what I mean.
If you're looking at low bitrate codecs for GNU radio, why use a hardware
(dongle)
dependent solution? You might look at MELPe, which provides 600, 1200, and
2400 bps,
and can be implemented as a software solution. MELPe is a US/NATO standard
(STANAG
4591). Common applications are HF radio and L band satellite apps where
bandwidth is
very limited.
-Jeff
- [Discuss-gnuradio] DV Dongle - AMBE USB Device, Eric A. Cottrell, 2008/03/18
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, Rick Parrish, 2008/03/19
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, Rick Parrish, 2008/03/19
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, David I. Emery, 2008/03/19
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, Rick Parrish, 2008/03/20
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, Jeff Brower, 2008/03/20
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, Rick Parrish, 2008/03/21
- Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device, Jeff Brower, 2008/03/21