Hi Rachel, this looks like a system overload. The source generates too much data so that the cpu will not leave any cycles for the rest of the application.
In the category "misc" there's a block called "throttle". Use it before the FFT block. It will reduce the number of samples that will go into the FFT. So the FFT function has less work. I also recently got involved with gnuradio the first time. Have a look here: http://www.csun.edu/~skatz/katzpage/sdr_project/sdr/grc_tutorial1.pdf * http://www.csun.edu/~skatz/katzpage/sdr_project/sdr/grc_tutorial2.pdf * http://www.csun.edu/~skatz/katzpage/sdr_project/sdr/grc_tutorial3.pdf * http://www.csun.edu/~skatz/katzpage/sdr_project/sdr/grc_tutorial4.pdf * This is a fantastic tutorial that should help you around these hurdles. BR Markus dl8rds Am Dienstag, den 02.11.2010, 13:05 -0400 schrieb Rachel Li: > Hi all: > > > I am using GRC 3.3 on ubuntu 10.10. After I "generate" and "execute" > the flow diagram, the graphical sink window will show up (e.g. FFT > skin or Scope sink). However, everything in this window will turn grey > after a few seconds and I am not able to click any button in the > window. When I tried to close it , it says "The window ...... is not > responding". > > > Does anyone have the same problem? Please help!! > > > Thanks a lot! > > > Rachel > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
