can you send me the output from the console? and the command line you used. -Daniel ----- Original Message ---- From: John Clark <email@example.com> To: Daniel Garcia <firstname.lastname@example.org> Cc: GNURadio Discussion List <email@example.com> Sent: Friday, February 23, 2007 1:16:55 PM Subject: Re: [Discuss-gnuradio] NTSC Receiver Daniel Garcia schrieb: > Hello, > > I've completed a prototype for an NTSC decoder blockset for gnu radio. > It's not very sophisticated but it lets you see video on the screen > using gr-video-sdl. My development platform is Ubuntu 6.10 x86. All I got was a black window. I know there is an analog TV station on the channel because my current work is using the USRP + fft to monitor the spectrum. When I display the FFT there is clearly a analog TV chanel with a 'classic' signature... i.e. clearly deliniated peaks for all signal elements, Video, Chomanence, and Audio. What could be going wrong with my setup. John Clark. ____________________________________________________________________________________ Never Miss an Email Stay connected with Yahoo! Mail on your mobile. Get started! http://mobile.yahoo.com/services?promote=mail
on 2007-02-23 20:26
on 2007-02-23 22:01
Daniel Garcia schrieb: > can you send me the output from the console? and the command line you used. > > -Daniel This is what I get: ./usrp_tv_rcv_testingNTSC.py -n -f 477.25 -d 26 Using RX d'board A: TV Rx Rev 3 width:156 height:262 d_output_buffer_size:40872 LEADING_EDGE_DETECTION_THRESHOLD: 0.9 TRAILING_EDGE_DETECTION_THRESHOLD: 0.3 SDL screen_mode 32 bits-per-pixel SDL overlay_mode 842094169 FYI: No Powermate or Contour Knob found TV Channel 15 should be 476 - 482, and the Video at 477.25, which I see on my FFT display of the channel. John Clark.
on 2007-02-24 00:53
On 2/23/07, John Clark <firstname.lastname@example.org> wrote: > Daniel Garcia schrieb: > > can you send me the output from the console? and the command line you used. > > > > -Daniel > This is what I get: > > ./usrp_tv_rcv_testingNTSC.py -n -f 477.25 -d 26 This may be a stupid question, but does it matter that the frequency specified there does not have the "M" suffix that the example webpage uses? > ./usrp_tv_rcv_testingNTSC.py -n -f 477.25 -d 26 ./usrp_tv_rcv_testingNTSC.py -n -f 481.25M -d 26 R C