Hello everyone,

I used planahead to fix the timing problems of a 1.8Ghz 32k channel
spectrometer in roach 2. I did it without troubles, using 38% of the DSP
and less of the 50% of RAMs..

After I compiled the model with the new constrains/placement and I tested
the bof, I found out that the numeric noise increased a lot as the power of
the harmonics...

 This issue results in a big decrease of the dinamic range of the
spectrometer in the whole BW (around 25 db against 40-45 db of a 1.8Ghz 16
k ch spectrometer that didn't need planahead)

I encountered this problem with an 1.8GHz 8k ch aswell.. so the issue is
not related with the increase of the number of channels..

Anyone encountered this kind of problems when using Planahead? As I
understand planahead shouldn't change the performance because it doesn't
make any change in the designs...

Any help will be appreciated!

Best Regards,
Raul Sapunar

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