I am facing issues regarding WX GUI fft sink block..
First that whatever center frequency i am providing it is showing a peak at that frequency whether input signal is there or not..??
Secondly there is a question that whether it can automatically shift to the frequency by detecting the frequency of the input signal or not??
Another issue in general that i am unable to use two sink blocks at the same time..e.g.if i am using fft sink and scope sink then when i execute it(i have no hardware attached uptill now)..then both plots are empty and i have to disable one of them to get working..??
any help would be appreciated..thnx in advance