Manual Icom IC-756PRO (page 8 of 84) (English)

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PANEL DESCRIPTION

@8 LOCK SWITCH [LOCK] (p. 45)

Turns the dial lock function ON and OFF.

@9 RIT/

∂∂

TX CONTROL [RIT/

∂∂

TX] (p. 34)

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).

#0 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 2 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.

∂∂

TX SWITCH [

∂∂

TX] (p. 34)

➥Turns the ∂TX function ON and OFF when

pushed.

•Use the [RIT/∂TX] control to vary the ∂TX frequency.

➥Adds the ∂TX shift frequency to the operating fre-

quency when pushed for 2 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.

#2 CLEAR SWITCH [CLEAR] (p. 34)

Clears the RIT/∂TX shift frequency when pushed

for 2 sec.

#3 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.

#4 MANUAL NOTCH FILTER CONTROL [NOTCH]

(inner control; p. 27)

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

NOTCH

CW PITCH

Lower frequency Higher frequency

Approx. 300 Hz

Approx. 900 Hz

Lower frequency Higher frequency

NOTCH

CW PITCH

RIT/∂TX

Low shift High shift

NB NR

BAL NR

COMP KEY SPEED BK-IN DELAY

LOCKTX

TWIN PBT

CW PITCH

F-1 F-2 F-3 F-4 F-5

SPEECH LOCK

RIT/ TX

TXRIT CLEAR

SPLIT

MP-W MP-R

DUAL

WATCH

VFO/

MEMO

MAIN/

SUB

CHANGE

1.8

3.5

GENE

•

F-INP

ENT

M-CL

XFC

CEIVER

i756PRO

PBT CLR NOTCH

NOTCH

SSB

CW/RTTY

AM/FM FILTER EXIT

$5 $4 $3

$0$1$2

■ Front panel (continued)

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Icom IC-756PRO Manual

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