[Discuss-gnuradio] fft_filter_ccc adaption for different Bandwidths

[bjoernm]

Hi everyone...

I'm currently working on/with the UCLA ZigBee Physical Layer  
implementation on GnuRadio. Now my sender and receiver will change  
their bandwidth all the time, hence I need to adjust the  
BandPassFilter at reception accordingly.

Now I have seen that the signal goes through the C++ Signal Processing  
Block "fft_filter_ccc" which, as I assume, filters the signal as a  
Bandpass filter or low pass, not sure.

Anyway, I need to adjust the parameters/coefficients of  
"fft_filter_ccc" and was wondering if anyone of you knows which  
parameter of this signal processing block responsible is for the width  
of the filter?

best regards, and thank you all for answering...
B