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Re: [Discuss-gnuradio] VrFSKDemod

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] VrFSKDemod
Date: Sun, 11 Jan 2004 23:49:19 -0800
User-agent: Internet Messaging Program (IMP) 4.0-cvs

Quoting Eric Blossom <address@hidden>:

> On Sun, Jan 11, 2004 at 09:50:51PM -0700, address@hidden wrote:
> >
> >
> > I'm trying to piece together everything necessary to decode a 9600bps EDACS
> > trunked radio control channel.
> Sounds like a good GNU Radio application...
> > The data is 2 level FSK.  I found the needs-work/VrFSKDemod.h.  How much
> work
> > does this need and/or is there a suitable alternative elsewhere?
> >
> > Attempting to use it gets complaints that VrSigProc is not a template
> class--
> > rightly so as it is not.  Any suggestions?
> >

I'd actually take a look at VrQuadratureDemod.  It puts out a floating point
value, which you would then have to slice.

If you don't have the input data in IQ format, then run it through a Hilbert
filter first.  That's your quickest bet.


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