  Direction-dependent effects (DDEs) represent a major challenge both for
calibration of new radio telescopes, and for advancing the state of the art of
existing ones. Various approaches to the problem are currently in development.
This paper describes several WSRT observations where a pointing error --
commonly thought to be a major contributor to DDEs at higher frequencies -- was
deliberately introduced. These observations were reduced using the MeqTrees
package, using two different approaches to correct for DDEs: differential gain
solutions, and a direct solution for pointing errors. The results of this are
analysed and compared.
