The TEP2000-4 is a digital RF phase shifter for with a 400 degree phase range and a low insertion loss of 4 dB. It operates from 1 to 2 GHz and is powered by a USB Interface. The phase shifter can be controlled with a GUI on any windows based computer. It is a 12 bit phase shifter with a 0.25 degree resolution. The TEP2000-4 can handle up to 20 dBm of input power.