Icom IC-R2500 Instruction Manual

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Icom IC-R2500 Instruction Manual Manual pdf 26 page image

194 BASIC OPERATIONDuplex 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 offset fre-quency. Repeater information (offset frequency and shift di-rection) can be programmed into memory channels. (p. 24)DD Setting [qPush the desired band’s [MAIN] to select the main band.w Push [SET•SKIP] to enter set mode.ePush [SET•SKIP] or [ATT•PRIO] several times until theduplex direction setting item “OFF dP,” “DUP– dP” or “DUP+dP ” appears.rRotate the main band’s [DIAL] to select the duplex direc-tion, “DUP– dP” or “DUP+ dP .”tPush [SET•SKIP] once to advance to the offset frequencysetting item.yRotate the main band’s [DIAL] to set the desired offset fre-quency within 0.000–1000.000 MHz range.• The tuning step, selected in VFO mode, is used for setting.• Push [MHz•TS] then rotate the main band’s [DIAL] to changethe frequency in 10 MHz steps, or push again then rotate themain band’s [DIAL] to change the frequency in 1 MHz steps.(Each push toggles 1MHz, 10 MHz or selected tuning steps.)uPush any key for main band to exit set mode.[SET•SKIP][DIAL][ATT•PRIO]■ Duplex operation