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