fft sampling

[Dost]

I have data  sampled at 1000 hz.I have about 2400 data points .I want to do FFt on this data ,. by theory i know that it will give me 500 frequecy window having 1200 dat apoints. I used express VI of spectral measurement  it gives me  frquency till 250 hz having interval of 25 hz. what should i do to  properly do FFT. Any comments.

Dost

[hannahW]

This is a duplicate of a post here:

http://forums.ni.com/ni/board/message?board.id=170&message.id=238311