Kenwood TS-990S Operation Manual - Page 81

5 ASSISTING YOUR SMOOTH QSO SIMPLEX OPERATION In most day to day operation, QSOs are Simplex operations using the same frequency for reception and transmission. For Simplex operation with this transceiver, you will transmit and receive in the main band. Note: ◆◆The reception capability for the main band cannot be disabled. SPLIT OPERATION You may use the Split function that allows you to transmit and receive using different frequencies when you make a QSO with the DX-pedition station. For Split operation using this transceiver, you can allocate different frequencies for the main band and sub band; one band is used for transmission and the other band for reception. Note: ◆◆Pressing [TX] (M) finishes the split operation, and the transceiver reverts to simplex operation. ◆◆To temporarily receive using the transmit frequency, use the TF-SET function. ◆◆Refer to "SUB SCREEN" for details of the display method of the sub screen. {page 4-4} FINDING THE TX FREQUENCY BY ROTATING THE TUNING CONTROL (S) To directly tune the transmit frequency, follow the instruction below during reception on the main band from the DXer. 4 4 DIRECTLY ENTERING THE FREQUENCY SPLIT SPECIFIED BY A DXer To directly enter the difference between the TX and RX frequencies specified by a DXer, follow the instruction below during reception on the main band of a signal from the DXer. 4
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4 1 Press [M▶S] to copy the operating frequency and mode for the main band to the sub band. 2 Press [TX] (S) to select the sub band enabling you to transmit. The "TX" (S) LED lights green and the "SPLIT" LED lights yellow, and you can start the split operation. 3 Tune the sub band frequency with a rotation of the Tuning (S) control to be the transmit frequency. The sub screen the frequency difference between the main band and sub band appears as ∆F. . . 1 Press [