Icom Ic-703 Hf/50mhz All Mode Tranciever Instruction Manual

							26
3BASIC OPERATION
q
Push [DISPLAY] for 1 sec. to select quick set mode.
wPush [MENU] one or more times to select “Q1 RF
POWER.”
eRotate the main dial to select the desired output.
• Output power is displayed in 11 steps (L, 1–9 and H)
but is continuously selectable.
rPush [DISPLAY] to exit quick set mode.
•Available power
*Carrier power
PO
S1
5 5 379
20 40
10 60dB
USB
Q1  RF  POWER
Maximum output 
power is selected.
[DISPLAY]Main dial[MENU]
DSetting output power
Microphone gain must be adjusted properly so that
your signal does not distort when transmitted.
qSelect SSB or another phone mode (AM or FM
mode).
w
Push [DISPLAY] for 1 sec. to select quick set mode.
ePush [MENU] one or more times to select “Q2
MIC GAIN.”
• The ALC meter is selected automatically when operat-
ing in SSB mode.
rWhile speaking into the microphone adjust the mi-
crophone gain so that the ALC meter does not
peak past the ALC zone.
tPush [DISPLAY] to exit quick set mode.
ALC
ALC zone
ALCS15 379
20 40 60dB
USB
Q2  MIC  GAIN
Microphone gain 
is set to 5.
[DISPLAY]Main dial[MENU]
DSetting microphone gain
QUICK SET MODE
Power supplySSB/CW
AM*
voltageRTTY/FM
13.8 V
0.1–10 W 0.1–4 W
(DC power mode)
9.6 V
0.1–5 W 0.1–2 W
(Battery mode)
QUICK SET MODE
3 
						

							DConvenient functions for receive
DConvenient functions for transmit
4
27
RECEIVE AND TRANSMIT
Operating SSB
qPush [(Y)BAND]/[(Z)BAND] to select the desired
band.
wPush [MODE] momentarily or push for 1 sec. to se-
lect LSB or USB mode.
• Below 10 MHz LSB is automatically selected; above
10 MHz USB is automatically selected.
eRotate [AF] control to set audio to a comfortable lis-
tening level.
rRotate the main dial to tune a desired signal.
• S-meter indicates received signal strength.
tPush [PTT] (microphone) to transmit.
• The TX indicator lights red.
ySpeak into the microphone at your normal voice
level.
• Adjust ‘MIC GAIN’ at this step, if necessary. (p. 26)
uRelease [PTT] (microphone) to return to receive.
RLSB
CH VFO APO
S1
5 5 379
20 40
10 60dB
USBCW RTTYAM WFM
M1  SPL  A/B  XFC
[TX] indicator [MODE]
Main dial
[AF]
[Y]
[Z]
“LSB” or “USB” appears
•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.
•IF shift(p. 47)
➥Rotate [SHIFT] control.•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.
•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.
• Push [(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.
•Speech compressor(p. 54)
➥While “M4” is selected, push [
(F-2)COM] to turn
the speech compressor ON and OFF.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
• “COM” appears when the speech compressor is set
to ON.
• Push [
(F-2)COM] for 1 sec. to enter the compression
level set mode.
•Carrier frequency control(p. 75)
➥While “Q3” is selected, rotate main dial to adjust
the audio tone.
• Push [DISPLAY] for 1 sec. to enter the quick set
mode.
• Push [MENU] one or more times to select Q3.
•VOX (voice operated transmit)(p. 53)
➥While “M4” is selected, push [
(F-1)VOX] to turn
the VOX function ON and OFF.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
• “VOX” appears when the VOX function is set to ON.
• Push [(F-1)VOX] for 1 sec. to enter the VOX set mode. 
						

							28
4RECEIVE AND TRANSMIT
DConnections for CW
Operating CW
Rear panel
CW
K4 CW PADDLE
K4 CW PADDLE
K4 CW PADDLE
K4 CW PADDLE
K4 CW PADDLE
CW
CW
CW
CW
Paddle [KEY]
[MICROPHONE]Straight key
MicrophoneKeyer set mode setting Rear panel
4
8
12
[ACC]
1 2 3
76 5
9
10 11
13
For no break-in operation:
Connect an external switch 
such as a foot switch; or use 
the RTTY SEND terminal for 
all bands. (See p. 38)
See p. 31 for connection details: 
Paddle operation from front panel 
MIC connector
.
Normal
Reverse
Bug
4 
						

							29
4RECEIVE AND TRANSMIT
DCW operation
qConnect a paddle or straight key as at previous
page.
wPush [
(Y)BAND]/[(Z)BAND] to select the desired
band.
ePush [MODE] momentarily to select CW mode.
• After CW mode is selected, push [MODE] for 1 sec. to
toggle between CW and Memory keyer modes.
rWhile the quick set mode item “Q3” is selected in
CW mode, rotate main dial to select CW or CWå
mode.
• Push [DISPLAY] for 1 sec. to enter the quick set mode.
• Push [MENU] one or more times to select Q3.
• Push [DISPLAY] momentarily to return to normal oper-
ating mode.
tRotate [AF] control to set audio to a comfortable
listening level.
yRotate the main dial to simultaneously tune a de-
sired signal and its side tone.
uSet CW setting in the keyer set mode.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
• Push [
(F-2)KEY] for 1 sec. to enter the keyer set mode.
(p. 32)
iSet CW break-in operation as semi break-in, full
break-in or OFF.
• Push [MENU] one or more times to select “K1  BK-
IN.”
• Rotate the main dial to select CW break-in operation.
➧FULL : full break-in
➧on : semi break-in
➧OFF : no break-in (ACC socket connection is neces-
sary as at previous page.)
oSet the CW delay time when semi break-in opera-
tion is selected.
• Push [MENU] one or more times to select “K2  BK-
IN DELAY.”
• Rotate the main dial to set the desired delay time (see
p. 32 for details).
!0Keying to transmit, use the electric keyer or pad-
dle to key your CW signals.
• The TX indicator lights red.
• The Po meter indicates transmitted CW signal
strength.
!1Release keying to return to receive.
BK
VFO A CW
CW
K2BK-IN
DELAY M4KEY 1/4
AGC
Delay time of 6.0 
dots is selected 
for semi break-in 
operation.
CHPO
S1
5 5 3792040
10 60dB
CW
K1BK-IN
Semi break-in 
operation is 
selected.
Appears
RLSB
CH VFO APO
S1
5 5 379
20 40
10 60dB
USBCWRTTYAM WFM
M4  1/4  KEY  AGC
F 2
[TX] indicator [MODE]Main dial
[DISPLAY] [F-2] [MENU][AF]
[Y]
[Z]
“CW” or “CWå” appears 
						

							30
4RECEIVE 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.
•Push [(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.
•1⁄4function
➥While “M4” is selected, push [
(F-1)1/4] to turn
the 1⁄4function 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.
DConvenient functions for receive
DConvenient functions for transmit
DCW reverse mode
The CWå(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].
w
Push [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
CWåmodes.
• Check the interference tone.
rPush [DISPLAY] momentarily to exit quick set mode.
• Receive audio tone response
(Reverse) CWå (Normal) CW
BFO 600 Hz
signal inteference
signal 600 Hz
BFO inteference
[MODE] Main dial[DISPLAY] [MENU]
QUICK SET MODE
4 
						

							31
4RECEIVE AND TRANSMIT
DCW pitch control
The received CW audio pitch and monitored CW
audio pitch can be adjusted to suit your preferences
(300 to 900 Hz) without changing the operating fre-
quency.
qEnter the keyer set mode.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
• Push [
(F-2)KEY] for 1 sec. to enter the keyer set mode.
wPush [MENU] one or more times to select “K3 CW
PITCH,” then rotate the main dial to set the de-
sired pitch.
ePush [DISPLAY] to exit the keyer set mode.
K3
CW
PITCH
CWThis shows the 
default setting for 
the CW pitch 
control (600 Hz).
Main dial [DISPLAY] [MENU][F-2]
DElectronic CW keyer
The IC-703 has an electronic keyer. Both keying
speed and weight (the ratio of dot : space : dash) can
be set.
•Setting the electronic keyer
qEnter the keyer set mode.
•Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
• Push [
(F-2)KEY] for 1 sec. to enter the keyer set mode.
wPush [MENU] one or more times to select “K4 CW
PADDLE,” then rotate the main dial to select the
paddle type.
• When “ud” is selected, the up/down switches on the mi-
crophone can be used as a paddle.
ePush [MENU] one more time to select item “K5
RATIO,” then rotate the main dial to select the de-
sired weight.
• Key weight can be selected from 2.8 to 4.5.
• Check the selected ratio with the side tone function in
CW mode.
rPush [DISPLAY] momentarily to return to M4.
tPush [DISPLAY] for 1 sec. to enter quick set mode.
yPush [MENU] once or twice to select “Q2  KEY
SPEED,” then rotate the main dial to select the de-
sired keying speed.
• [M-CH] or [Y]/[Z] can also be used to select “Q2 KEY
SPEED.”
• Keying speed can be selected from 6 to 60 wpm.
uPush [DISPLAY] momentarily to return to M4.
Paddle operation from front panel MIC connector
Connect a CW paddle as at right to operate an elec-
tronic keyer from the front panel MIC connector.
• This function is available from the front panel mic
connector only.
• Be sure to select item “n,” “r,” “buG” or “oFF” in K4
CW PADDLE in the keyer set mode. (p. 32)
• Connect straight key to “DOT” side.
front panel
MIC connector
MIC U/D CW
paddle
DOT
E
DASH
w u
3.9 kΩ ±5%
2.2 kΩ ±5%
KEYING WEIGHT EXAMPLE: morse code “K”
DASH
Weight setting:
1:1:3 (default)
Weight setting:
AdjustedDASH DOT
(Fixed*)
Adjustable range SPACE (Fixed*)
*SPACE and DOT length can be adjusted
  with “Q2 KEY SPEED” only.
Main dial [DISPLAY] [MENU][F-2][M-CH]
[Y]
[Z] 
						

							While M4is selected in CW mode, push [(F-2)KEY] for
1 sec. to enter the keyer set mode.
32
4RECEIVE AND TRANSMIT
K1 BK-IN
This item sets the CW break-in operation. The break-
in operation is selectable from off, on and FULL.
The default is OFF.
CW
K2 BK-IN DELAY
This item adjusts break-in delay time for CW semi
break-in operation. The delay time is selectable from
2.0 to 13.0 (dots).
The default is 7.5 dots.
CW
K3 CW PITCH
This item sets the CW pitch. CW pitch is adjustable
from 300 to 900 Hz in 10 Hz steps.The default is 600 Hz.CW
K4 CW PADDLE
This item adjusts the CW paddle type. Four selec-
tions are available.
• n : normal (for electronic keyer use)
• r : reverse (for electronic keyer use)
• buG : When using the electronic keyer, key down
produces a “dash,” releasing the key automat-
ically produces a “dot(s).”
• oFF : Turns OFF the electronic keyer (for straight
key use)
• ud : For using the microphone’s [UP]/[DN] keys in-
stead of the CW paddle.
The default is “n,” normal.
CW
K5 RATIO
This item adjusts the CW key ratio (or weight). The
ratio can be selected from 2.8 to 4.5.The default is 3.0.CW
DCW side tone function
DKeyer set mode
When the transceiver is in the receive condition (and
the break-in function is OFF— below) you can listen
to the tone of your CW signal without actually trans-
mitting. This allows you to match your transmit signal
exactly to another station’s. This also convenient for
CW practice. CW side tone level can be adjusted in
the initial set mode (p. 77).
4 
						

							33
4RECEIVE AND TRANSMIT
The transceiver has a number of convenient functions
for the electronic keyer that can be accessed from the
memory keyer menu.
qSelect CW mode with [MODE].
wPush [MODE] for 1 sec. to select the memory
keyer send menu.
• Push [MODE] momentarily to return to normal CW op-
erating mode.
ePush [DISPLAY] to enter the memory keyer menu.
See the diagram below.
• Push [DISPLAY] momentarily to return to the memory
keyer send menu.
[DISPLAY]
[MODE]
CH VFO APOS1
1 1.5 2 3 55 379
20 40
10 60dB
CW
∞
BLANK
CH VFO APOS1
1 1.5 2 3 55 379
20 40
10 60dB
∞
BLANK
M4  1/4  KEY  AGC
CW
-1  MK1  MK2  MK3
F 1 F 2 F 3 MENU
F 1 F 2 F 3 MENUF 1 F 2 F 3 MENUF 1 F 2 F 3 MENU
CW
Ä  MK1  MK2  MK3
F 1 F 2 F 3 MENU
CW
Ä  EDT  001  SET
F 1 F 2 F 3 MENU
CW
Ä  ÅCFU  TU  Ç
_
Push [MENU](Ä)
or [DIAPLAY]Push [MENU](Ä)
or [DIAPLAY]Push [MENU](Ä)
or [DIAPLAY] Push [MENU](
Ä)
or [DIAPLAY]
CW
Ä  ÅUR  5NN*  BÇ
_
CW
Ä  ÅCQ  TEST  CÇ
_
MENUMENU
CW
02  MSG  DISPLAY
CW
01  REPEAT  TIME
CW
03  PRESENT  No.
CW
02  CNT  UP  TRIG
CW
01  NUM  STYLE
MODE
MODE
DISPLAY
DISPLAY• CW mode
• Edit menu• Contest number set mode• Menory keyer set mode • Memory keyer send menu
• Memory keyer menu
Push Push
Push
Push Push PushPush*Push*
*Set mode item can be selected
 with [Y BAND]/[Z BAND] or
 [M-CH] during set mode. Push [F-1]
Push
[DISPLAY]Push
[DISPLAY] Push [F-2]
Push [F-3] Push
for 1 sec.
Memory keyer functions 
						

							34
4RECEIVE AND TRANSMIT
Pre-set characters can be sent using the memory
keyer send menu. Contents of the memory keyer are
set using the edit menu.
•Transmitting
qSelect CW mode with [MODE].
wPush [MODE] for 1 sec. to enter the memory keyer
send menu.
eSet the break-in function ON (p. 32).
• When step ris performed during the break-in func-
tion OFF, monitors the memory keyer contents.
rPush one of the function keys ([(F-1)MK1] to 
[
(F-3)MK3]) to send the contents of the memory
keyer.
• Pushing a function key for 1 sec. repeatedly sends the
contents and blinks “MK1,” “MK2” or “MK3” indication;
push any function key to cancel the transmission.
• Keying with the connected straight key or paddle to
[KEY] on the rear panel is also cancels the transmis-
sion.
• Under bars (___) are indicated for the count up trig-
ger set channel.
• The contest number counter is incremented each time
the contents are sent.
• Push [MENU] to reduce the contest number count by 1
when resending contents to unanswered calls.
tPush [MODE] momentarily to exit memory keyer
send menu and return to normal CW mode indica-
tion.
-1  CQ  TEST  CQ
-1  MK1  MK2  MK3---
-1  UR  5NN001  B
-1  CFM  TU 
• Memory keyer send menu
• MK1 send indication
• MK2 send indication
• MK3 send indicationCount up trigger
indication
Counter
CW
-1  MK1  MK2  MK3
F 1 F 2 F 3 MENU
CH VFO APOS1
5 5 379
20 40
10 60dB
CW
BLANK
---
Sends [(F-1)MK1]–[(F-3)MK3] contents. • Memory keyer send menu
[MENU]
[F-3][F-1]
[F-2]
[MODE]
DMemory keyer send menu
4 
						

							35
4RECEIVE AND TRANSMIT
The contents of the memory keyer memories can be
set using the memory keyer edit menu. The memory
keyer can memorize and re-transmit 3 CW key codes
for often-used CW sentences, contest numbers, etc.
Total capacity of the memory keyer is 50 characters
per memory channel.
•Programming contents
qSelect CW mode with [MODE].
wEnter the memory keyer menu.
• Push[MODE] for 1 sec. to enter the memory keyer
send menu.
• Push
[DISPLAY] momentarily to enter the memory
keyer menu.
ePush [(F-1)EDT] to enter the edit menu.
rPush the multi-function key, [
(F-1)MK1], [(F-2)MK2]
or [
(F-3)MK3], to select the desired memory keyer
channel to be edited.
tInput the desired character by rotating the main
dial.
• Selectable characters (with the main dial);
NOTE: 
“
^” is used to transmit a following word with no
space such as 
AR. Put “^” before a text string
such as ^AR, and the string “
AR” is sent with no
space.
“
*” is used to insert the CW contest number.
The contest number automatically increments
by 1. This function is only available for one
memory keyer channel at a time. Memory keyer
channel MK2 used “
*” by default.
Push [(F-2)] to erase characters.
yPush [
(F-1)ç] or [(F-3)å] to move the cursor back-
wards or forwards, respectively.
uRepeat steps tand yto input the desired char-
acters.
iPush [MENU] or [DISPLAY] three times to return
to the keyer send menu. 
Pre-programmed contents
Ä  MK1  MK2  MK3
Ä  EDT  001  SET
Ä  Å    [ DEL]    Ç
Ä  ÅCFU  TU  Ç 
-
Ä Å Ç
-
-
Ä ÅQ Ç
Ä ÅSL  TU  D Ç
Ä  ÅYUA  TEST Ç
-
F 1
F 2
F 3
Displays “[DEL]” for 1 sec. then shows
the default contents.
Push [F-2] to erase characters.
• Example display— when inputting QSL TU
  DE JA3YUA TEST into MK3 • Memory keyer menu
• Edit menu
• MK3 indication (default)Push
Push
[MENU][DISPLAY]
[F-3][F-1]
[F-2]
[MODE]Main dial
CW
Ä  ÅCFU  TU  Ç
_
CW
Ä  ÅUR  5NN*  BÇ
_
CW
Ä  ÅCQ  TEST  CÇ
_
• MK1 indication (default)• MK2 indication (default)• MK3 indication (default)
Contest number counter is set
by entering an asterisk (*).
A B C D E F G H I J K L M N O P Q R S T
U V W X Y Z / ? . , * ^
CH CONTENTS
MK1 CQ TEST CQ TEST DE ICOM ICOM T
MK2 UR 5NN* BK
MK3 CFM TU
DEditing a memory keyer