I forgot to answer your DTV question. At this time, there is no GNU Radio based receiver for DVB-S2 (or DVB-T2). One issue that stands in the way is developing a software LDPC decoder with sufficient performance (ideally, at least 50 Mbps for DVB-T2 and even more for DVB-S2).

Therefore, all the DTV transmitters in gr-dtv have been tested with hardware receivers. For DVB-T2, I'm using the PCTV 292e which works very well and is fully integrated into the latest Linux kernels.

http://www.pctvsystems.com/Products/ProductsEuropeAsia/Hybridproducts/PCTVtripleStick/tabid/308/language/en-US/Default.aspx

Based on the good performance of the DVB-T2 USB stick, the PCTV 460e or 461e may be a good choice for DVB-S2.

http://www.pctvsystems.com/Products/ProductsEuropeAsia/Satelliteproducts/PCTVDVBS2Stick/tabid/236/language/en-GB/Default.aspx

Ron

On 11/05/2015 05:00 AM, chai E wrote:
hello all
i am using
https://github.com/gnss-sdr/gnss-sdr    [text_sink],
but there is nothing show when i use text_sink
this is my grc file,
is there some one who konw how to use this demo

another question ,i want to test the example of DTV in gnuradio ,but there is only transmitter,where i can got a demo of DTV-dvbs2 receicer based on gnuradio,

thank you


--Ekko



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