ICOM IC-703 Manual Do Utilizador

30

4

RECEIVE AND TRANSMIT

• Preamp and attenuator (p. 46)

➥ Push [P.AMP/ATT] momentarily to set the preamp

ON or OFF.

• Lights green when the preamp is set to ON.

➥ Push [P.AMP/ATT] for 1 sec. to set the attenuator

ON.

• Push [P.AMP/ATT] momentarily to turn the attenua-

tor OFF.

• Lights red when the attenuator is set to ON.

• Noise blanker (p. 48)

➥ While “M3” is selected, push [

(F-2)

NB] to turn the

noise blanker ON and OFF.

• Push [DISPLAY] once or twice to select 

M.

• Push [MENU] one or more times to select 

M3.

• “NB” appears when the noise blanker is set to ON.
• Push [

(F-2)

NB] for 1 sec. to enter the noise blanker

set mode.

• AGC (auto gain control) (p. 48)

➥ While “M4” is selected, push [

(F-3)

AGC] to select

AGC fast and AGC slow.

• Push [DISPLAY] once or twice to select 

M.

• Push [MENU] one or more times to select 

M4.

• “F

AGC

” appears when the fast time constant is se-

lected.

• IF shift (p. 47)

➥ Rotate [SHIFT] control.

• Noise reduction (p. 50)

➥ While “S4” is selected, push [

(F-2)

NR] to turn the

noise reduction ON and OFF.

• Push [DISPLAY] once or twice to select 

S.

• Push [MENU] one or more times to select 

S4.

• P

ush [(F-3)

NRL] then rotate [M-CH] to adjust the

noise reduction level.

•

“NR” appears when the noise reduction is set to ON.

• Auto notch filter (p. 50)

➥ While “S4” is selected, push [

(F-1)

ANF] to turn the

auto notch filter function ON and OFF.

•

“ANF” appears when the noise reduction is set to
ON.

➥ While “M4” is selected, push [

(F-1)

1/4] to turn

the

1

⁄

4

function ON and OFF.

• Push [DISPLAY] once or twice to select 

M.

• Push [MENU] one or more times to select 

M4.

• Break-in function (p. 32)

➥ While “M4” is selected, push [

(F-2)

KEY] for 1 sec.

to enter the keyer set mode.

• Push [DISPLAY] once or twice to select 

M.

• Push [MENU] one or more times to select 

M4.

➥ Rotate the main dial to select the break-in OFF,

semi break-in or full break-in.

• “BK” or “F-BK” appears when the semi break-in or full

break-in is set to ON, respectively.

D

D

DCW reverse mode

The CW

å (CW Reverse) mode receives CW signals

with a reverse side CW carrier point like that of LSB
and USB modes. Use this mode when interference
signals are near the desired signal and you want to
change the interference tone.

qSelect CW mode with [MODE].

wPush [DISPLAY] for 1 sec. to enter quick set mode.

ePush [MENU] one or more times to select “Q3 CW

REV,” then rotate the main dial to select CW and
CW

å modes.

• Check the interference tone.

rPush [DISPLAY] momentarily to exit quick set mode.

å

BFO

600 Hz

signal

inteference

signal

600 Hz

BFO

inteference

[MODE]

Main dial

[DISPLAY]

[MENU]