628 MENU SCREEN OPERATIONNew2001■ MODE/TS/TONE menu itemsD Duplex direction (DUPLEX)Sets the duplex direction. The displayed frequency shiftsthe programmed frequency in offset frequency at rightwhen monitor function is in use (After pushing and holding[CLR SQL] for 1 sec.).• +DUP : The displaying frequency shifts up during moni-tor.• –DUP : The displaying frequency shifts down duringmonitor.• OFF : Simplex operation. (default)Simplex operation Positive duplex operationD Offset frequency (OFFSET FREQ)Sets the duplex offset frequency for each frequency bandindependently within 0 to 159.995 MHz range. During duplexoperation (–DUP or +DUP), the monitoring frequency (afterpushing and holding [CLR SQL] for 1 sec.) shifts the set fre-quency.The default value may differ according to the selected fre-quency band (before accessing menu screen) and receiverversion.The selected tuning step at next column (right page) isused for the offset frequency setting.
