The VSG25A hardware features a 12-bit I/Q baseband arbitrary waveform generator which can be clocked at virtually any frequency from 54 kHz to 180 MHz, and includes a 4096 x 16 bit pattern buffer for built-in or custom modulation. The included software automatically generates CW: 100 MHz to 2.5 GHz, -40 dBm to +10 dBm, AM / FM: 30 Hz to 40 MHz modulation rates, sine, triangle, square, ramp and pulse: 6 ns to 25 ms width, 12 ns to 1 second period.