{TAIL ~ The characteristics} of {HEAD ~ jitter} include the level of error, the frequency of change in the error and whether the change is periodic or random 
{ TAIL ~ The characteristics } of { HEAD ~ jitter } include the level of error , the frequency of change in the error and whether the change is periodic or random
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH