Re: [Discuss-gnuradio] DVB-T Reception Problem

[Ron Economos]

Something that you can try is to use the OFDM synchronization block from 
gr-isdbt.

https://github.com/git-artes/gr-isdbt

Just replace the gr-dvbt ofdm_sym_acquisition block with the one from 
gr-isdbt. Leave the freq. error output unconnected.

I believe German DVB-T is 16QAM 2/3 rate, so your captured signal should 
be at least 12 dB to 15 dB above the noise, preferably more.

Also, since you're using a B210, you can use the correct DVB-T sample 
rate of (8,000,000 * 8) / 7 Msps (instead of 10 Msps) and delete the 
rational resampler block in the flow graph.

Ron

On 12/16/2015 04:29 AM, address@hidden wrote:
> Hello all,
>
> I am trying to receive a DVB-T signal which I have recorded using a USRP
> B210.I have set all parameters correctly but I am unable to receive the
> output stream. I already verified that I have a spike at 746MHz which is
> the frequency of my broadcast station.i think the problem is with the
> synchronization. I am getting restart aquisition as my grc output
> continously. There are some messages before as well which I have attached
> as a screenshot. Anyone who could check where the error is? Thanks all
> very much.
>
> Regards
> Ahsan