{HEAD ~ The associated circuitry} within the transponder does the actual testing and includes an oscillator, a transmit frequency circuit, a self test interrogation circuit, and {TAIL ~ forward power detectors} 
includes
{ HEAD ~ The associated circuitry } within the transponder does the actual testing and includes an oscillator , a transmit frequency circuit , a self test interrogation circuit , and { TAIL ~ forward power detectors }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL