The mixed signal is coupled through a demultiplexer to respective inputs of first, second, third and fourth low pass filters, each of which has {HEAD ~ a cut} off {TAIL ~ frequency} which is one half of the decoder passband 
The mixed signal is coupled through a demultiplexer to respective inputs of first , second , third and fourth low pass filters , each of which has { HEAD ~ a cut } off { TAIL ~ frequency } which is one half of the decoder passband
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH