The STZ-60390320-12-I1 from ERAVANT is a Noise Source with Frequency 60 to 90 GHz, Excess Noise Ratio (ENR) 18 to 20 dB, Flatness ±1.5 dB, Voltage 18 to 30 V, Current 45 to 100 mA. Tags: Waveguide Noise Source. More details for STZ-60390320-12-I1 can be seen below.