The 626A SHF Generator/Doubler provides frequency coverage in the 10 to 15.5GHz range. Frequency calibration is dial direct in MHz with an accuracy of ?1%. Delivers 10 mW to 1 pW output power with calibrated output and internal or external square wave, FM, or pulse modulation. Source impedance of 50-ohms nominal with WR75 waveguide connector. Built to last, the 626A will provide years of dependable service.