How Can i remove low frequency <50hz with high pass filter??

[Fonsi]

Hi,
I use a serial port acquistion, and i have a problem with the encoder, it gets bad noise with low frequency, In the icons to filter, you need a wave, i only have the sample rate and the frequency.
I thought that it would be possible to use a software high pass filter set to remove any frequency lower than 50hz from the data...
Can you help me to adjust the vi?
I attached the example vi.

Thanks.

[johnsold]

I think you may have several problems. If the first row in your data set (transposed) represents time in seconds, then the data is sampled much too slowly to detect any 50 Hz component. If it is in some other units (like milliseconds), then you must tell the analysis VIs what the actual sampling time is. The error that is produced is telling you that the Nyquist criterion is not met. That means that the sampling rate must be twice as fast as the highest frequency in the data. Tell us what the data actually represents and show us where the interference appears and perhaps we can help.

Lynn