At the receiver, the information received immediately after this presetting period will be, effectively, from an IIR with a known initial memory state which is identical to {HEAD ~ the initial state} of {TAIL ~ the receiver FIR filter memory} 
At the receiver , the information received immediately after this presetting period will be , effectively , from an IIR with a known initial memory state which is identical to { HEAD ~ the initial state } of { TAIL ~ the receiver FIR filter memory }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL