Bedienungsanleitung Icom IC-7400 (Seite 17 von 116) (Englisch)

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PANEL DESCRIPTION

2001 NEW

@3 VOX/BREAK-IN SWITCH [VOX/BK-IN]

➥ In SSB, AM and FM modes, push momentarily to

turn the VOX function ON and OFF (p. 54); push

for 1 sec. to enter VOX set mode (p. 54).

➥ In CW mode, push momentarily to turn the semi

break-in, full break-in or break-in OFF (p. 55);

push for 1 sec. to enter break-in set mode (p. 55).

✔

What is the VOX function?

The VOX function (voice operated transmission) starts trans-

mission without pushing the transmit switch or PTT switch

when you speak into the microphone; then, automatically re-

turns to receive when you stop speaking.

✔

What is the break-in function?

Full break-in (QSK) activates the receiver between transmit-

ted dots and dashes. This is useful when operating in nets,

or during DX pileups and during contests, when “fast ex-

changes” are common.

@4 MONITOR SWITCH [MONITOR] (p. 56)

➥ Monitors your transmitted signal.

➥ Enters monitor set mode when pushed for 1 sec.

@5 FILTER SWITCH [FILTER] (p. 49)

➥ Selects one of 3 IF ﬁlter settings.

➥ Enters the ﬁlter set mode when pushed for 1 sec.

@6 CALL SWITCH [CALL] (p. 63)

Selects the call channel when pushed momentarily.

@7 TUNING DIAL (p. 21)

Changes the displayed frequency, selects set mode

items, etc.

LOCK/SPEECH SWITCH [LOCK/SPCH]

➥ Push momentarily to toggle the dial lock function

ON and OFF. (p. 52)

➥ Pushing for 1 sec. announces the selected read-

out frequency and S-meter indication when an

optional UT-102 is installed. (p. 89)

@9 RIT/

∂∂

TX CONTROL [RIT/

∂∂

TX] (pgs. 47, 56)

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 ±9.99 kHz in 10 Hz steps.

#0 RIT SWITCH [RIT] (p. 47)

➥

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.

#1 CLEAR SWITCH [CLEAR] (pgs. 47, 56)

Clears the RIT/∂TX shift frequency when pushed

for 1 sec.

•Can be cleared instantly when [CLEAR] is pushed if the

Quick RIT Clear is set to ON (p. 85).

∂∂

TX SWITCH [

∂∂

TX] (p. 56)

➥ 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

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.

#3 MEMORY CHANNEL SELECTOR [M-CH] (p. 61)

Select a memory channel.

•Rotate clockwise to increase the memory channel; ro-

tate counterclockwise to decrease the memory channel.

#4 VFO/MEMORY SWITCH [VFO/MEMO]

➥ Switches the selected readout operating mode

between the VFO mode and memory mode when

pushed. (pgs. 20, 61)

➥ Transfers the memory contents to VFO when

pushed for 1 sec. (p. 64)

#5 MEMORY CLEAR SWITCH [M-CL] (p. 62)

Clears the selected readout memory channel con-

tents when pushed for 1 sec. in memory mode.

• The channel becomes a blank channel.

• This switch does not function in VFO mode.

#6 MEMORY WRITE SWITCH [MW] (p. 62)

Stores the selected readout frequency and operat-

ing mode into the displayed memory channel when

pushed for 1 sec.

•This function is available both in VFO and memory

modes.

#7 PBT CLEAR SWITCH [PBTC] (p. 51)

Clears the PBT settings when pushed for 1 sec.

Low shift High shift

RIT/∂TX

IC-7400.qxd 02.4.2 11:35 Page 4

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