Icom IC-7800

6-6
■ Split frequency operation
Split frequency operation allows you to transmit and
receive in the same mode on two different frequen-
cies. The 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 hold down [M=S]
for 1 second.
 •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“
” ap-
pear on the LCD.
 •[SPLIT]indicatorlights.
 •“TX”appearstoshowthetransmitfrequencyreadout.
e Set the transmit frequency to 21.310 MHz in one of
following ways.
• When the split function ON ➥ Rotate the main dial while holding down [XFC].
➥ Rotate the sub dial.
  •Thetransmitfrequencycanbemonitoredwhilehold-
ing down [XFC] or using dualwatch.
r Now you can receive on 21.290 MHz and transmit
on 21.310 MHz.
To change the transmit and receive frequencies, push
[CHANGE] to exchange the main and sub readouts.
• When [XFC] is pushed
✔ CONVENIENT
• Direct shift frequency input
The shift frequency can be entered directly.
qPush[F-INP•e n t ].
w Enter the desired shift frequency with the digit keys.
 •1kHzto9.999MHzcanbeset.
 •Whenyourequireaminusshiftdirection,push[GENE•.]
in advance.
• The split frequency operation is ready 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•e n t ],[1.8•1]then[SPLIT].
To transmit on 3 kHz lower frequency:
 -Push[F-INP•e n t ],[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 holding
down [XFC] during split frequency operation.
The dial lock’s effectiveness during split frequency op-
eration can be selected in the set mode for both re-
ceive and transmit frequencies; or only the receive fre-
quency. (p. 12-16)
6
FUNCTIONS FOR TRANSMIT
Sub dialMain dial
[SPLIT][CHANGE]
[XFC]
[M=S]
[SPLIT] indicator