{TAIL ~ Cable interconnect} introduces additional unknown delays that have to be removed in {HEAD ~ a calibration process} 
{ TAIL ~ Cable interconnect } introduces additional unknown delays that have to be removed in { HEAD ~ a calibration process }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD