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