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