The present invention is a signal observation system for controlling {HEAD ~ a plurality} of {TAIL ~ receiver channels} simultaneously 
of
The present invention is a signal observation system for controlling { HEAD ~ a plurality } of { TAIL ~ receiver channels } simultaneously
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH