Ron Economos

I tried the new changes, but they did not help. However, by disabling volk (by commenting out the line #define USE_VOLK 1) in ofdm_sym_acquisition_impl.cc and dvbt_demap_impl.cc, the flowgraph does run....

After creating a baseband file by using a bladeRF in external loopback (with a 20 dB attenuator) running dvbt_tx_demo.grc, I've achieved a successful decode! The generated TS is completely error...

I did a little debugging. In my version with volk disabled in ofdm_sym_acquisition_impl.cc and dvbt_demap_impl.cc, the remaining GPF is caused by this code in d_viterbi.c in the function d_viterbi_chunks_init_sse2(). for...

The alignment of metric0[] and path0[] causes the GPF (when they end up on an 8-byte boundary, for example 0x0a7f5928). I'm not smart enough to align a C++ object, so...

Nitin, This project is no longer supported. It's been transferred into GNU Radio itself in the Digital Television component. You should be using those blocks and flow graphs instead. Also,...

You can try the GNU Radio blocks. The OFDM symbol acquisition block has been enhanced quite a bit with input from the gr-isdbt folks. Flow graphs are in /share/gnuradio/examples/dtv

That's about all I have for you. I always use commercial receivers, so I haven't bothered much with the DVB-T receiver. If you think it's frequency offset, then the 2K...

You could just use the old method of generating hierarchical blocks. Put ```gr-dvbs2rx/grc/hier/dvbs2rx_rx_hier.grc``` in ```gr-dvbs2rx/examples```. When you load ```dvbs2_rx.grc``` (or any other flow graph that contains the hierarchical block), the...

I usually just pause the receiver and take a screenshot. 

Maybe something like scrot? You could at least do a timed capture with that. But there's no way to know what part (or start time) of the image will be...