[LAD] Smallest, simplest, silliest SDR?
Tim E. Real
termtech at rogers.com
Sun Feb 28 03:06:44 UTC 2010
On February 27, 2010 07:50:07 pm Gordon JC Pearce wrote:
> On Sun, 2010-02-28 at 01:41 +0100, fons at kokkinizita.net wrote:
> > On Sun, Feb 28, 2010 at 12:40:00AM +0000, Gordon JC Pearce wrote:
> > > I wanted a very simple SDR with jack inputs and outputs for a
> > > demonstration I was doing. I had a look at the DSP guts of dttsp and
> > > quisk, and sat down to code.
> > Forgive my ignorance, but what is an SDR ?
> Software-Defined Radio. Basically you downmix incoming RF to the audio
> range with two mixers fed 90 degrees out of phase. You can then munge
> this in various different ways to tune and demodulate various different
> radio signals.
> Gordon MM0YEQ
> Linux-audio-dev mailing list
> Linux-audio-dev at lists.linuxaudio.org
I read about this in Nuts And Volts magazine.
They describe in some detail how SDR works and neat DSP techniques
I searched the web but could only seem to find Windows related stuff.
Some more Linux stuff would be cool.
One still needs to build or buy a front-end first though, right?
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