The SynthHD from Windfreak Technologies is a dual channel software tunable RF Signal Generator and frequency sweeper that operates from 54 MHz to 13.6 GHz. It is controlled and powered by a device running Windows or Android via USB port. The generator has two independent channels can be configured to run as two different frequencies, or the same frequency with different phases. It can generate signals with an output power from -50 to 18 dBm. The SynthHD has non-volatile on board memory and can be programmed to fire up by itself on any frequency, power, sweep and modulation setting to run stand alone in the field.