The NW7.2G8.4-30-CS-I from NoiseWave is a Noise Source with Frequency 7.2 to 8.4 GHz, Excess Noise Ratio (ENR) 30 to 35 dB, Flatness -/+ 0.75 dB, Temperature Compensation -20 to +75 deg C, Voltage 28 V. More details for NW7.2G8.4-30-CS-I can be seen below.