Re: [Discuss-gnuradio] ATSC demod tips
Eric Blossom wrote: > > > If you are trying to capture continuous data, there is no substitute > for a disk subsystem that can sustain the required throughput. > > For capturing short segments (<500 MB raw data) is a ram disk not sufficient? -- View this message in context: http://www.nabble.com/ATSC-demod-tips-tp19446876p19614781.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
RE: [Discuss-gnuradio] ATSC demod tips
Wuest Brandon-WTVR47 wrote: > > >> I got a few underruns during the "usrp_rx_cfile". >> About 10 in 10 seconds. The raw data file is 446 meg. > > Underruns are bad. > > Try capturing the data to a ram disk instead of your hard drive if you > do not have a faster hard drive setup available (i.e. RAID). I used the > ATSC demodulator a few months back and was never able to successfully > store that data down to my hard drive, so I allocated a 512 MB ramdisk > and used that which worked great. > I am having the same issue. When using a ramdisk I get no usrp overruns but still the output file is empty. When putting the output of each py file in its own file, I found btl-fsd.py outputs nothing. Are there any obvious reasons why this would be happening? Is there anything I can do to narrow down the problem? -- View this message in context: http://www.nabble.com/ATSC-demod-tips-tp19446876p19611184.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] help! ImportError
Joreen Tan wrote: > > I'm totally new to gnuradio.. i installed gnuradio via fedora 6 and the > installation was successful. however, i get the ImportError when i tried > to run a program. Below are the exact codes i typed. > > [EMAIL PROTECTED] ~]# cd gnuradio-3.1.2/gnuradio-examples/python/usrp > [EMAIL PROTECTED] usrp]# python usrp_spectrum_sense.py > Traceback (most recent call last): > File "usrp_spectrum_sense.py", line 23, in? > from gnuradio import gr, gru, eng_notation, optfir, window > ImportError: No module named gnuradio > > I did try to search for possible solutions but i really don't understand > how should i do it as in the codes to type as i'm really totally new to > this. can anyone please help me with this? > This problem has to do with the python interpreter not being able to find where certain gnu radio files were installed. You can fix this by creating a file that points python in the right direction. To do this you can run these commands: su echo "/usr/local/lib/python2.4/site-packages" | tee /usr/lib/python2.4/site-packages/gnuradio.pth exit This might change depending on your python installation. The first directory is the location of gnu radio's python files, the second is a location where python already looks for files. -- View this message in context: http://www.nabble.com/comedilib-question-tp18958726p18970529.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
