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Re: [Discuss-gnuradio] Amateur television ATV

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] Amateur television ATV
Date: Wed, 26 Apr 2006 11:03:38 -0700
User-agent: Thunderbird 1.5 (X11/20051201)

Matteo Campanella wrote:
> hello, In the case of atv, as I believe the passband of the signal is
> way too large for the throughput of usrp usb, are there any special
> techniques/tricks to achieve some sort of result?

I believe that most ATV is AM (almost 12 MHz) instead of VSB (6 MHz).
If that is true, then you could do an AM demodulation in the FPGA pretty
easily.  You would tune the picture carrier to the center of the
passband.  Of course, the TVRX filters are only 6 MHz wide, so you'd
lost the high frequency content of the signal, and probably the sound


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