Icom IC-756PROII Instruction Manual page 8

2
PANEL DESCRIPTION
I Front panel
CEIVER
756PRO™
NB NR
BAL NR
COMP BK-IN DELAY KEY SPEED
#0 LOCK/SPEECH SWITCH [LOCK/SPEECH]
➥ Push momentarily to toggle the dial lock function
ON and OFF. (p. 46)
➥ Pushing for 1 sec. announces the S-meter indi-
cation and the selected readout frequency when
an optional UT-102 is installed. (p. 74)
#1 RIT/∂ ∂ TX CONTROL [RIT/∂ ∂ TX]
Shifts the receive and/or transmit frequency without
changing the transmit and/or receive frequency
while the RIT and/or ∂TX functions are ON.
• Rotate the control clockwise to increase the frequency,
or rotate the control counterclockwise to decrease the
frequency.
• The shift frequency range is ±9.999 kHz in 1 Hz steps
(or ±9.99 kHz in 10 Hz steps).
Low shift
#2 RIT SWITCH [RIT] (p. 34)
➥ Turns the RIT function ON and OFF when pushed.
• Use the [RIT/∂TX] control to vary the RIT frequency.
➥ Adds the RIT shift frequency to the operating fre-
quency when pushed for 1 sec.
✔ What is the RIT function?
The RIT (Receiver Incremental Tuning) shifts the receive fre-
quency without shifting the transmit frequency.
This is useful for fine tuning stations calling you on an off-fre-
quency or when you prefer to listen to slightly different-
sounding voice characteristics, etc.
#3 ∂ ∂ TX SWITCH [∂ ∂ TX] (p. 34)
➥ Turns the ∂TX function ON and OFF when
pushed.
• Use the [RIT/∂TX] control to vary the ∂TX frequency.
6
(continued)
F-1 F-2 F-3 F-4
SSB CW/RTTY AM/FM FILTER
(p. 34)
RIT/∂TX
High shift
$7 $6 $5 $4 $3 $2
1 2
1.8 3.5 7
SPLIT
4 5
10 14 18
DUAL
WATCH
7 8
21 24 28
CHANGE
0 F-INP
50
GENE
ENT
VFO/
MEMO
MP-W MP-R
MAIN/
SUB
RX
TX
F-5
REC/PLAY
EXIT/SET
➥ Adds the ∂TX shift frequency to the operating
frequency when pushed for 1 sec.
✔ What is the ∂ ∂ TX function?
The ∂TX shifts the transmit frequency without shifting the re-
ceive frequency. This is useful for simple split frequency op-
eration in CW, etc.
#4 CLEAR SWITCH [CLEAR] (p. 34)
Clears the RIT/∂TX shift frequency when pushed
for 1 sec. or when pushed momentarily, depending
on the quick RIT/∂TX clear function setting
#5 CW PITCH CONTROL [CW PITCH]
(outer control; p. 29)
Shifts the received CW audio pitch and monitored
CW audio pitch without changing the operating fre-
quency.
Lower frequency
Approx. 300 Hz
#6 MANUAL NOTCH FILTER CONTROL [NOTCH]
(inner control; p. 26)
Varies the peak frequency of the manual notch fil-
ter to pick out a receive signal from interference
while the manual notch function is ON.
• Notch filter center frequency:
SSB : 0 Hz to 5100 Hz
CW : –900 Hz + CW pitch freq. to 4200 Hz + CW
pitch freq.
AM : –5100 Hz to 5100 Hz
Lower frequency
$1 $0 #9
TWIN PBT
3
Y
6 Z
9
MW
PBT CLR NOTCH
#8
M-CL
#7
NOTCH CW PITCH
TS
#6
XFC
LOCK
#5
RIT TX CLEAR
#4
#3
RIT/ TX
#2
LOCK/SPEECH
#0 #1
NOTCH CW PITCH
Higher frequency
Approx. 900 Hz
NOTCH CW PITCH
Higher frequency
.
(p. 72)