Help with bandstop filter

[JordanJMcBain]

I've built a simple test VI to play with the point-by-point bandstop filters.  I'm using a simple point-by-point sine wave filter to generate the input.  I can't seem to get any bandstop filtering action.

Can anyone help?

[johnsold]

Jordan,

I think you need to use different values for Fs and dt. In your image it appears that Fs = 1000 and the increment added to the time for the sine function is also 1000. Connect the time to the input of the 1/x.

Lynn

[kbbersch · Accepted solution]

I don't understand why you are not incrementing time linearly.  It should be simply 0.001 * iteration.  You're adding the inverse of the time step to your time.

Also, use Wait ms instead of Wait until next multiple for your loop time.

[JordanJMcBain]

Thanks.