Icom IC-7410 Instruction Manual - Page 73

Split frequency operation

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■ Split frequency operation Split frequency operation allows you to transmit and receive on two different frequencies. Split frequency operation is performed using 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 in VFO A. w Push [SPLIT] to turn ON the Split operation. • The transmit (VFO B) frequency and "SPLIT" appear. e H old down [A=B] for 1 second to equalize the trans- mit (VFO B) frequency to the receive (VFO A) frequency. • The equalized transmit (VFO B) frequency appears. • The Quick Split function is much more convenient for selecting the transmit frequency. See the next section for details. r W hile holding down [XFC], rotate [DIAL] to set the transmit frequency to 21.310 MHz. • T he transmit frequency can be monitored while holding down [XFC]. t N ow 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 VFO A and VFO B. ✔ CONVENIENT • Direct frequency shift input The frequency shift can be directly entered. q Push [F-INP ENT]. w E nter the desired frequency shift with the digit keys. • 1 kHz to 1 MHz can be set. • W hen you require a minus shift direction, first push [GENE • ]. e P ush [SPLIT] to input the frequency shift to the transmit frequency, and the Split function is turned ON. [Example] To transmit on a 1 kHz higher frequency: - Push [F-INP ENT], [1.8 1] then [SPLIT]. To transmit on a 3 kHz lower frequency: - Push [F-INP ENT], [GENE • ], [7 3] then [SPLIT]. • Split Lock function Accidentally releasing [XFC] while rotating [DIAL] changes the receive frequency. To prevent this, use both the Split Lock and Dial Lock functions to change only the transmit frequency. The Split Lock function cancels the Dial Lock function while holding down [XFC] during split frequency operation. The Split Lock function is OFF by default, but can be turned ON in the Set mode. (p. 86) 6 FUNCTIONS FOR TRANSMIT [A/B] [SPLIT] [XFC] • After pushing [SPLIT] [DIAL] Appears M1 AGC TBW SCP Shows transmit (VFO B) frequency • While holding down [XFC] Shows transmit (VFO B) frequency M1 AGC +20.00k TBW SCP Shows frequency shift and direction • After setting up M1 AGC TBW SCP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 66

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6
FUNCTIONS FOR TRANSMIT
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■
Split frequency operation
Split frequency operation allows you to transmit and
receive on two different frequencies. Split frequency
operation is performed using 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 in VFO A.
w
Push [SPLIT] to turn ON the Split operation.
• The transmit (VFO B) frequency and “SPLIT” appear.
e
Hold down [A=B] for 1 second to equalize the trans-
mit (VFO B) frequency to the receive (VFO A) fre-
quency.
• The equalized transmit (VFO B) frequency appears.
• The Quick Split function is much more convenient for
selecting the transmit frequency. See the next section
for details.
r
While holding down [XFC], rotate [DIAL] to set the
transmit frequency to 21.310 MHz.
• The transmit frequency can be monitored while holding
down [XFC].
t
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 VFO A and VFO B.
✔
CONVENIENT
• Direct frequency shift input
The frequency shift can be directly entered.
q
Push [F-INP ENT].
w
Enter the desired frequency shift with the digit
keys.
• 1 kHz to 1 MHz can be set.
• When you require a minus shift direction, first push
[GENE • ].
e
Push [SPLIT] to input the frequency shift to the
transmit frequency, and the Split function is turned
ON.
[Example]
To transmit on a 1 kHz higher frequency:
- Push [F-INP ENT], [1.8 1] then [SPLIT].
To transmit on a 3 kHz lower frequency:
- Push [F-INP ENT], [GENE • ], [7 3] then [SPLIT].
• Split Lock function
Accidentally releasing [XFC] while rotating [DIAL]
changes the receive frequency. To prevent this, use
both the Split Lock and Dial Lock functions to change
only the transmit frequency. The Split Lock function
cancels the Dial Lock function while holding down
[XFC] during split frequency operation.
The Split Lock function is OFF by default, but can be
turned ON in the Set mode. (p. 86)
Appears
Shows transmit (VFO B) frequency
Shows transmit (VFO B) frequency
Shows frequency shift and direction
• While holding down [XFC]
• After setting up
• After pushing [SPLIT]
[XFC]
[DIAL]
[A/B] [SPLIT]
AGC
TBW
SCP
M1
+20.00k
AGC
TBW
SCP
M1
AGC
TBW
SCP
M1