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Re: [Discuss-gnuradio] Amateur television ATV
From: |
Lamar Owen |
Subject: |
Re: [Discuss-gnuradio] Amateur television ATV |
Date: |
Thu, 27 Apr 2006 12:45:44 -0400 |
User-agent: |
KMail/1.9.1 |
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