On Fri, May 30, 2008 at 1:40 PM, Nate Duehr <[EMAIL PROTECTED]> wrote:
> Someone mentioned a while back that there's a software-based CODEC that > someone used to make the "D-STAR extender" using the discriminator > output of a regular FM receiver, and the software. > > I wonder if something like that could be used for getting the audio from > the local systems more inexpensively than "wasting" a transceiver on it. > An old scanner and 5 minutes to stick a wire at a decent discriminator > tap point, is a lot cheaper than buying a rig to dedicate to listening > to the local system for things like this. > > > > > Nate, Not aware of a software CODEC, there is a software solution for pulling the data stream off a discriminator. Tried it with an old scanner and seemed to work OK, but for audio I think its still involves getting DVSI's AMBE chip in the stream some way. Satoshi's circuit might help, but I don't know that you will save that much since he's using Icom's card for the IC2200H plus some additional circuitry. (I'd just go with the 2200.) Now if someone came up with an AMBE chip to discriminator/modulator kit that didn't involve the Icom card there may be some savings. -- John D. Hays Phone: 206-801-082 Fax: 866-309-6077 Email: [EMAIL PROTECTED] VOIP/SIP: [EMAIL PROTECTED] [Non-text portions of this message have been removed]
