Measured noise of the PD and moku. The pd was connected to the CH1 and Moku CH2 was terminated with 50ohm. The Moku:Go spectrum analyzer was used to get the spectrum with 100 avg, and hamming window.

PD: PDA05CF2 : CH1 (red plot)

Moku:Go : CH2 blue in color

Fig 1: With power supply to PD off

Fig 2: With power supply to PD on