christianhbye
commented
10 months ago Comparison between autocorrelation spectra with different DC/DC converters. Top: Lab power supply at 6V without converter, middle: linear regulator (LM7806), bottom: buck converter used in the field (Jielaite LK1263).
Seeing ripples in auto spectra from Marjum close to bright tones. Timescale does not seem to line up with cable reflection for 500m fiber optic. Reproduced in lab. Not present in crosses.