A dump signal 1182 clears {HEAD ~ the accumulators} at {TAIL ~ the end} of each symbol period 
at
A dump signal 1182 clears { HEAD ~ the accumulators } at { TAIL ~ the end } of each symbol period
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH