The respective outputs from the high group divider and {TAIL ~ the low group divider} are supplied to {HEAD ~ a high group sine wave signal generator} and a low group sine wave signal generator 
The respective outputs from the high group divider and { TAIL ~ the low group divider } are supplied to { HEAD ~ a high group sine wave signal generator } and a low group sine wave signal generator
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH