Icom IC-7800

6-4
■ ∂TX function
The ∂TX function shifts the transmit frequency up to
±9.999 kHz in 1 Hz steps (10 Hz steps when cancel-
ling the 1 Hz step readout) without moving the receive
frequency.
•See(3 on p. 1-11 for function description.
[RIT/∂TX] [∂TX]
[CLEAR]
q Push [∂TX].
 •“ ” appears.
w Rotate [RIT/∂TX].
e To reset the ∂TX frequency, hold down [CLEAR] for
1 second.
 •Push[CLEAR]momentarilytoresettheRITfrequency
when the quick RIT/∂TX clear function is ON. (p.
12-18)
r To cancel the ∂TX function, push [∂TX] again.
 •“ ” disappears.
D ∂TX monitor function
[XFC]
When the ∂TX function is ON, holding down [XFC] al-
lows you to monitor the operating frequency directly.
✔ For your convenience— Calculate function
The shift frequency of the ∂TX function can be added/
subtracted to the displayed frequency.
➥ While displaying the ∂TX shift frequency, hold down
[∂TX] for 1 second.
■ Monitor function
The monitor function allows you to monitor your trans-
mit IF signals in any mode. Use this to check voice
characteristics while adjusting SSB transmit parame-
ter. (p. 12-4) The CW sidetone functions regardless of
the [MONI] switch setting.
[MONI GAIN][MONI]
q Push [MONI] to switch the monitor function ON or
OFF.
 •[MONI]indicatorabovethisswitchlightsgreen.
w Rotate [MONI GAIN] for the clearest audio output
while holding [PTT] and speaking into the micro-
phone.
NOTE: WhenusingtheVOXvoicedelay,turnthe
monitor function OFF; or transmitted audio will be
echoed.
6
FUNCTIONS FOR TRANSMIT