The jittering test signal is used to test equipment to determine the effect of {TAIL ~ the jittering signal} on {HEAD ~ the equipment} 
The jittering test signal is used to test equipment to determine the effect of { TAIL ~ the jittering signal } on { HEAD ~ the equipment }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD