1 GHz to 18 GHz Horn Antenna The Type 115 Pulse Generator is a multi purpose instrument which generates pulses with a variety of controllable characteristics. It has a maximum repetition rate of 10 MHz, a maximum amplitude of +-10 volts and a minimum risetime and falltime of 10 ns. Those pulse characteristics which are controllable are: the repetition rate, width, amplitude, risetime, falltime, DC offset and polarity. Its five modes of operation include an undelayed pulse, a delayed pulse (with a calibrated delay), paired pulses, and externally triggered burst of pulses and an externally grated burst of pulses. In addition to the output pulse, there is an undelayed and a delayed trigger output.