RF switch with built in pulse modulator covering the frequecy range 100MHz to 6GHZ. Isolation of 30dB at 4GHz and switching speed of 33nS. The switch has a P0.1dB of 29dBm and a IP3 of +49dBm at 6GHz. The internal pusle modulator function allows the user to set pulse width and rate using a PC based GUI stored in flash on the device. The pulse timing is controlled with a crystal oscillator. Applications include switching between two sources and pulse amplifier testing.