The SynthHD from Windfreak Technologies is a dual channel software tunable RF Signal Generator and frequency sweeper that operates from 10 MHz to 15 GHz. It is controlled and powered by a device running Windows or Android via a USB port. The generator has two independent channels that can be configured to run at two different frequencies, or at the same frequency with different phases. It can generate signals with an output power from -40 to 20 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.