Make branch in svn

Dear all,
I am still quite new to the svn concept. I am using it two months now and I was just commiting and updating my local copy.

Now I have implemented some extra features (like gps support) and I want to have two projects

-the original version
-the new with the gps

I think this in the svn is called branch and one can create a new branch in the project.

Could you please help me understand how I can do that? I am using kdesvn but also I can try the cli version.