The present invention endeavors to model the power line by transmitting signals onto the line and examining {HEAD ~ the response} at {TAIL ~ a receiver input} 
The present invention endeavors to model the power line by transmitting signals onto the line and examining { HEAD ~ the response } at { TAIL ~ a receiver input }
OTH OTH OTH OTH OTH OTH 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