Re: [Discuss-gnuradio] Amateur television ATV

[Lamar Owen]

On Wednesday 26 April 2006 16:25, Matt Ettus wrote:
> Lamar Owen wrote:
> > If it's true DSB AM, then just tune to one side, filtering out one
> > sideband, and treat it as single sideband.  Would want to watch out for
> > aliasing, of course, from the rejected sideband.  Unless you're real
> > good, and set it so that the aliased sideband folds into the passband
> > perfectly... :-)  the sidebands are, after all, identical in AM.

> If you do what I suggested you don't have to tune exactly because you
> can do an AM detection.

Sure; there's the tradeoff of exactness of tuning versus received bandwidth.  
Depends entirely on which is more important, and which is simpler to 
implement.
-- 
Lamar Owen
Director of Information Technology
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC  28772
(828)862-5554
www.pari.edu