Other environmental conditions that interfere with the transmitting and receiving signals may further bear on the values of {TAIL ~ V1} and {HEAD ~ V2} 
Other environmental conditions that interfere with the transmitting and receiving signals may further bear on the values of { TAIL ~ V1 } and { HEAD ~ V2 }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD