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6
FUNCTIONS FOR TRANSMIT
2001 NEW
Split frequency operation
Split frequency operation allows you to transmit and
receive in the same mode on two different frequencies.
The split frequency operation is basically performed
using 2 frequencies in VFO A and VFO B.
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 A.
w Push [SPLIT] to turn the split function ON, then
push [A/B] for 1 sec.
The equalized transmit (VFO B) frequency and SPLIT
appear on the LCD, and the [SPLIT] indicator lights.
e While pushing [XFC] rotate the tuning dial to set the
transmit frequency to 21.310 MHz.
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 VFO A and VFO B.
Tuning dial[XFC]
[SPLIT] Lights during split operation
[A/B]
AppearsShows transmit (VFO B) frequency
AGC
DUP
CMP
TBW
SCP
21.29OOO
Shows transmit (VFO B) frequency
Shows shift frequency and direction
AGC
DUP
CMP
TBW
SCP
+2O.OOk
While pushing [XFC]
AGC
DUP
CMP
TBW
SCP
21.31OOO
After setting up
CONVENIENT
Direct shift frequency input
The shift frequency can be entered directly.
q Push [F-INP].
w Enter the desired shift frequency with the digit
keys.
1 kHz to 1 MHz can be set.
When you require a minus 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-INP], [1.8
1
] then [SPLIT].
To transmit on 3 kHz lower frequency:
- Push [F-INP], [GENE ], [7
3
] then [SPLIT].
Split lock function
Accidentally releasing the [XFC] switch while rotating
the tuning dial changes the receive frequency. To pre-
vent this, use both the split lock and dial lock func-
tions to change the transmit frequency only. The split
lock function cancels the dial lock function while
pushing [XFC] during split frequency operation.
The dial locks effectiveness during split frequency
operation can be selected in the set mode for both
receive and transmit frequencies; or only the receive
frequency. (p. 82)
IC-7400.qxd 02.4.2 11:35 Page 58
71


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