...

There are a few upper and lower outliers in the "noisy" run so when I cut lex1 to >100 and <1000 I get
noisy RMS is 2.137363
clean RMS is 2.030238

Comparison of cut on distribution statistics

Noisy run
Mean/RMS for adcn0 is 522.198370 / 45.660070
Mean/RMS for adcn1 is 198.362319 / 22.961862
Mean/RMS for adcn2 is 430.747800 / 4.349292
Mean/RMS for adcn3 is 212.980719 / 0.604945
Mean/RMS for adcp0 is 581.069746 / 45.380801
Mean/RMS for adcp1 is 230.566253 / 34.672148
Mean/RMS for adcp2 is 512.517857 / 5.275627
Mean/RMS for adcp3 is 204.628235 / 0.779602

Not noisy run
Mean/RMS for adcn0 is 521.426602 / 15.194472
Mean/RMS for adcn1 is 198.049501 / 2.361731
Mean/RMS for adcn2 is 430.746586 / 3.423744
Mean/RMS for adcn3 is 212.976366 / 0.519290
Mean/RMS for adcp0 is 580.000000 / 15.111143
Mean/RMS for adcp1 is 229.865940 / 2.030238
Mean/RMS for adcp2 is 512.040047 / 3.405283
Mean/RMS for adcp3 is 204.285058 / 0.539917

Noisy with cut on adc<1000
Mean/RMS for adcn0 is 521.471715 / 11.076650
Mean/RMS for adcn1 is 198.102498 / 2.370902
Mean/RMS for adcn2 is 430.747800 / 4.349292
Mean/RMS for adcn3 is 212.980719 / 0.604945
Mean/RMS for adcp0 is 580.307742 / 13.940864
Mean/RMS for adcp1 is 230.175100 / 4.464143
Mean/RMS for adcp2 is 512.517857 / 5.275627
Mean/RMS for adcp3 is 204.628235 / 0.779602

Not noisy with cut on adc<1000
Mean/RMS for adcn0 is 521.294550 / 9.904404
Mean/RMS for adcn1 is 198.049501 / 2.361731
Mean/RMS for adcn2 is 430.746586 / 3.423744
Mean/RMS for adcn3 is 212.976366 / 0.519290
Mean/RMS for adcp0 is 579.878661 / 10.781662
Mean/RMS for adcp1 is 229.865940 / 2.030238
Mean/RMS for adcp2 is 512.040047 / 3.405283
Mean/RMS for adcp3 is 204.285058 / 0.539917