{HEAD ~ A transceiver} within the communication device sweeps through {TAIL ~ a frequency range} of interest in order to receive signals within the frequency range 
sweeps through
{ HEAD ~ A transceiver } within the communication device sweeps through { TAIL ~ a frequency range } of interest in order to receive signals within the frequency range
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH