A system and related method for generating a test signal with controllable amounts of signal jitter includes a pattern generator, a programmable arbitrary waveform generator and a phase modulator. Two cover portions, one of which is slidably inserted inside the other are secured together. After curing, the exposed surface is then ground and acid-etched to define fissures, cracks, andor sharp edges of the aggregate. The polycrystalline diamond table includes a first region extending inwardly from at least a portion of the upper surface and at least a portion of the at least one side surface.