Re: [Discuss-gnuradio] Problems with dvbt 8k 64QAM

[Ron Economos]

You have to set the Cyclic Prefix Length on the OFDM Symbol Acquisition 
block to 2048 to match the 1/4 guard interval (8192/4 = 2048).

Ron

On 03/16/2018 03:06 AM, Juan Antonio wrote:
> I have been running the file for 15 minutes and it is still working 
> even though the file source repeater is set to no.
>
>   The constellation at the exit of the FTT block engages with 64 
> points (+5), randomly engages and at 2 seconds they appear in a 
> circular way (this also made it to the adv16.cfile file), re-lock  
> them and the 2 seconds later or less appear in a circular way and so 
> consecutively
>
>   The constellation to the output of demod reference signal only 
> appears with a point in the center. The processor cores work at 50%
>
> Best  regards