Icom IC-7700 Instruction Manual - Page 114

6 FUNCTIONS FOR TRANSMIT ■ Split frequency operation [SPLIT] indicator A/B A=B XFC • When the split function ON Main dial SPLIT • When [XFC] is pushed • The split frequency operation is ready Split frequency operation allows you to transmit and receive in the same mode on two different frequencies. Split frequency operation is performed using 2 frequencies on the main and sub readouts. The following is an example of setting 21.290 MHz for receiving and 21.310 MHz for transmitting. q Set 21.290 MHz (USB) in VFO mode. w Push SPLIT momentarily, then push and hold A=B for 1 sec. • The quick split function is much more convenient for se- lecting the transmit frequency. See the next section for details. • The equalized transmit frequency and " SPLIT " appear on the LCD. • [SPLIT] indicator lights. • "TX" appears to show the transmit frequency readout. e Set the transmit frequency to 21.310 MHz in the following way. ➥ Rotate the main dial while pushing [XFC]. • The transmit frequency can be monitored while pushing [XFC]. r Now you can receive on 21.290 MHz and transmit on 21.310 MHz. To change the transmit and receive frequencies, push A/B to exchange the main and sub readouts. ✔ CONVENIENT • Direct shift frequency input The shift frequency can be entered directly. q Push F-INPENT . w Enter the desired shift frequency with the digit keys. • 1 kHz to 1 MHz can be set. • When you require a negative shift direction, push GENE • in advance. e Push SPLIT . • The shift frequency is input in the sub readout and the split function is turned ON. [Example] To transmit on 1 kHz higher frequency: - Push F-INPENT , 1.8 1 then SPLIT . To transmit on 3 kHz lower frequency: - Push F-INPENT , GENE • , 7 3 then SPLIT . • Split lock function Accidentally releasing [XFC] while rotating the main dial changes the receive frequency. To prevent this, use both the split lock and dial lock functions to change the transmit frequency only. The split lock function cancels the dial lock function while pushing [XFC] during split frequency operation. The dial lock's effect during split frequency operation can be selected in the set mode for both receive and transmit frequencies; or only the receive frequency. (p. 12-13) 6-6