a first synthesizer in signal communication with the main path and the error path configured to generate {HEAD ~ an output signal} responsive to {TAIL ~ the intermodulation compensation signal}, 
responsive to
a first synthesizer in signal communication with the main path and the error path configured to generate { HEAD ~ an output signal } responsive to { TAIL ~ the intermodulation compensation signal } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH