Re: [Discuss-gnuradio] Fft scope frequent hangs

[Jonathan Jacky]

On Fri, 17 Nov 2006, Jonathan Jacky wrote:

> In fft_sink, fft_rate is the number of frames fft_sink 
> attempts to draw per second.  Try adjusting it down.  There is a similar 
> parameter frame_decim in scope_sink, again adjust this down until the display 
> updates and the program works.

Correction -- in scope_sink, you make frame_decim *larger* to display 
fewer frames, so adjust it *up* until the program works.   Or, start 
at some large value like 20 or 30, then adjust it down until the program 
stops working.

Recently Eric pointed out that both fft_rate (for fftsink and 
waterfallsink) and frame_decim (for scopesink) can be assigned in
your ~/.gnuradio/config.conf like this:

[wxgui]
fft_rate = 15     # fftsink and waterfallsink
frame_decim = 1   # scopesink

Jon Jacky