{TAIL ~ The underlying signal} of the jittering test signal, however, continues to be {HEAD ~ the originally generated test signal} 
{ TAIL ~ The underlying signal } of the jittering test signal , however , continues to be { HEAD ~ the originally generated test signal }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD