This classic grid type is used by the vast majority of printing companies for the production of full-colour printed matter. With AM (Amplitude Modulation) grid, the distance between the centres of the points remains the same and the size of the point varies. In this type of grid, these points, which vary in size, are tightly arranged on imaginary lines. The more dotted lines per cm, the higher the resolution. Uncoated paper often has a grid of 60 (60 lines per cm) and coated paper usually has a grid of 70 and some printing works have a grid of 80 lines. By setting these fixed dot lines at a different angle per sub-colour (C105º/M75º/Y90º/K45º), the rosette pattern so characteristic of AM-raster is created.