I have Spectrum Lab, for some reason always had trouble with it. I'll make a note and see what I can do. THanks. Kurt ----- Original Message ----- From: "Andy - KU4XR" <ku4xr at yahoo.com> : Spectrum Labratory has a 3-D section in the software. I don't know : if it is what your looking for, but you might check it out to see.