Systems and methods for analyzing an electrosurgical unit are provided. One system includes an electrosurgical unit analyzer having an input configured to receive radio frequency (RF) signals from an electrosurgical generator and a measurement subsystem configured for programmable waveform detection corresponding to the received RF signals. The measurement subsystem includes a field-programmable gate array (FPGA) defining one or more thresholds for the waveform detection. The electrosurgical unit analyzer further includes a user interface displaying information relating to individual pulses detected from the RF signals.