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