An optional automatic light control sub system provides greatly extended dynamic range with {HEAD ~ control inputs} derived from {TAIL ~ an amplifying detector} included in each receiver to maximize occurrences of valid data points 
derived from
An optional automatic light control sub system provides greatly extended dynamic range with { HEAD ~ control inputs } derived from { TAIL ~ an amplifying detector } included in each receiver to maximize occurrences of valid data points
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH