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Re: [Discuss-gnuradio] atsc_cpll finally works
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] atsc_cpll finally works |
Date: |
Wed, 21 May 2008 10:02:54 -0700 |
User-agent: |
Mutt/1.5.17 (2007-11-01) |
On Wed, May 21, 2008 at 07:12:39AM -0400, Charles Swiger wrote:
>
> Now my question: Is it possible to tune the usrp so the carrier is at
> +.31 Mhz ? (band center at 3, from -.2 to 6.2Mhz?) Then we could run
> the cpll at 6.4 or 8Msps and get another big performance boost, maybe.
> Right now the pll at 19.2 Mhz (6.4 * 3) is an expensive part.
No problem tuning the USRP where ever you want. Between the VCO on
the d'board the DDC we've got 0.01Hz resolution.
> Eric, I guess the bit timing loop would work at 24Mhz (8 * 3).
I wouldn't expect that to be a problem.
Eric