164BASIC OPERATIONNew20014Duplex communication uses two different frequencies fortransmitting and receiving. Generally, duplex is used in com-munication through a repeater, some utility communications,etc.During duplex operation, the transmit station frequency isshifted from the receive station frequency by the frequencyoffset. Repeater information (frequency offset and shift di-rection) can be programmed into memory channels. (p. 19)D Settingq Set the station’s receive frequency (repeater output frequen-cy).w Hold down [SET](TS) for 1 second to enter the Set mode.e Rotate [DIAL] to select the “EXPAND” item.• “EXPAND” disappears after 1 second and “OFF” (default) and“EX” appear.[DIAL]Expand set mode itemAfter 1 sec.Setting displayr While holding down [FUNC], rotate [DIAL] to select “ON.”t Rotate [DIAL] to select the “OFFSET” item.• “OFFSET” disappears after 1 second and “0.600” (default) and“OW” appear.(Default offset differs depending on the frequency band orreceiver version.)Frequency offset item Setting displayAfter 1 sec.y While holding down [FUNC], rotate [DIAL] to set a desiredfrequency offset within 0.000–159.995 MHz range.• The tuning step, selected in the VFO mode, is used for setting.u Rotate [DIAL] to select the “DUP” item.• “DUP” disappears after 1 second and “OFF” (default) and “DP”appear.Duplex item Setting displayAfter 1 sec.i While holding down [FUNC], rotate [DIAL] to select“–DUP” or “+DUP.”o Push [SET](TS) to exit the Set mode.!0 Hold down [SQL] to directly monitor the station’s transmitfrequency (repeater input frequency).■ Duplex operation using EXPAND SET MODE