Re: [Discuss-gnuradio] Unable to find field sync for over the air HDTV signal

['Eric Blossom']

On Wed, Oct 10, 2007 at 06:34:40PM -0500, Nirali Patel wrote:
> Hi Eric,
> 
> Attached is the screenshot for the spectrum at 587Mhz. I will soon get a
> link so next time I won't attach! 
> It looks like there is some multipath towards the upper end but not a deep
> notch or anything severe that would prevent field sync. The SNR does not
> seem that bad either at 57dB gain. I will try to move my antenna to another
> place to see if I can get a completely flat spectrum.
> With a gain setting of 50 I get slightly higher SNR and the field sync stays
> on for a longer time before the equalizer loses it. 
> Your thoughts appreciated.

FYI, if you turn on the "Average" option (right click in fft display), it's
even easier to see what's going on.

> Thanks,
> Nirali
> 
> > What does the output of usrp_fft -d 8 -f 587M look like?
> 
> Eric