How do I remove a DC component from a random signal?

[Act 3]

localDSP, you suggested removing the DC componet from the signal and then apply fft on it. How do I extract the DC component from the signal without affecting it.
How would I excatly know this is my DC value and then
edit my random data according to it. Your suggestion would be well appreciated.

Thanks.

[LocalDSP]

First of all, could you try not to create a new posting for every answer. Just reply by pressing either the "Answer this Question" or the "Comment this Answer" button. Otherwise this discussion thread will end all over the place making it difficult to keep track of its progresses.

So to answer this question I'll go back to your original (first) posting.

[Evan]

Act,

Here is a link to that original posting that you and LocalDSP have been using.
Why am I getting very high values for the very low frequency region of a random signal?

By sticking with the one posting we can all keep the issue together, and other readers may be able to shed some light on the question for you.