Re: [Discuss-gnuradio] How to capture video frame over the air

2014-03-26 Thread Ruecan
Thank you Ron for this explanation. -- View this message in context: http://gnuradio.4.n7.nabble.com/How-to-capture-video-frame-over-the-air-tp47242p47252.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing li

Re: [Discuss-gnuradio] How to capture video frame over the air

2014-03-26 Thread Ron Economos
Your capture frequency is way off. WUSA-TV transmits on RF channel 9, which is 186 to 192 MHz. You want to capture the center of the channel, so 189 MHz is the correct number. http://en.wikipedia.org/wiki/North_American_television_frequencies The 5 MHz sample rate is too low. The signal is 6 MHz

[Discuss-gnuradio] How to capture video frame over the air

2014-03-26 Thread Ruecan
Hello GR, I tried to capture some TV broadcast video frames using rx_samples_to_file --args "addr=myusrp" --file myfile.dat --time 120 --freq 450.75e6 --rate 5e6 --gain 30 Then I tried to play back that file using : tx_samples_from_file --args "addr=myusrp" --file=myfile --type short --rate 6.2