INSTRUCTION MANUAL
HF ALL BAND TRANSCEIVER
i718
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TABLE OF CONTENTS
1
IMPORTANT ............................................................ i
EXPLICIT DEFINITIONS .......................................... i
PRECAUTIONS ........................................................ i
6 MEMORY OPERATION .............................. 35–38
n Memory channels ........................................... 35
n Memory channel selection .............................. 35
n Memory channel programming ....................... 36
n Frequency transferring ................................... 37
n Memory clearing ............................................. 38
1 TABLE OF CONTENTS ...................................... 1
SUPPLIED ACCESSORIES .................................... 1
2 PANEL DESCRIPTION ................................... 2–8
n Front panel ....................................................... 2
n Function display ............................................... 5
n Rear panel ........................................................ 6
n Microphone (HM-36) ........................................ 8
7 SCANS ........................................................ 39–40
n Scan types ..................................................... 39
n Preparation ..................................................... 39
n Programmed scan operation .......................... 40
n Memory scan operation .................................. 40
3 INSTALLATION AND CONNECTIONS ........ 9–14
n Unpacking ........................................................ 9
n Selecting a location .......................................... 9
n Grounding ........................................................ 9
n Antenna connection ......................................... 9
n Required connections .................................... 10
n Advanced connections ................................... 11
n Power supply connections ............................. 12
n Liner amplifier connections ............................. 13
n External antenna tuners ................................. 14
8 SET MODE .................................................. 41–47
n General .......................................................... 41
n Quick set mode items ................................ 42-43
n Initial set mode items ................................ 44-47
9 INSTALLATION AND CONNECTIONS ...... 48–51
n Opening the transceiver’s case ...................... 48
n Optional bracket and carrying handle.............. 48
n CR-338 HIGH STABILITY CRYSTAL UNIT ........ 49
n UT-102 VOICE SYNTHESIZER UNIT ................ 49
n UT-106 DSP RECEIVE UNIT ............................ 50
n Optional IF filters ............................................ 50
n AT-180 internal switch description ................. 51
4 FREQUENCY SETTING .............................. 15–19
n When first applying power .............................. 15
n Initial setting ................................................... 15
n VFO description ............................................. 16
n Frequency setting ........................................... 17
n Dial lock function ............................................ 19
10 MAINTENANCE ........................................ 52–53
n Troubleshooting ............................................. 52
n Fuse replacement .......................................... 53
n Resetting the CPU ......................................... 53
5 RECEIVE AND TRANSMIT ......................... 20–34
n Mode selection ............................................... 20
n Squelch and RF gain ...................................... 20
n Function for receive ........................................ 21
n DSP function (option) ..................................... 23
n Filter selection ................................................ 24
n Filter setting .................................................... 25
n Function for transmit ...................................... 26
n Split frequency operation ............................... 30
n SWR ............................................................... 30
n Function for CW ............................................. 31
n Function for RTTY .......................................... 33
11 SPECIFICATIONS .......................................... 54
12 OPTIONS .................................................. 55–56
13 CONTROL COMMAND ............................ 57–58
n Remote jack (CI-V) information ...................... 57
14 INTERNAL VIEWS .......................................... 59
n Top view ......................................................... 59
n Bottom view .................................................... 59
15 INSTALLATION NOTES ................................. 60
n DECLARATION OF CONFORMITY ............... 61
SUPPLIED ACCESSORIES
q
w
The transceiver comes with the following accessories.
Qty.
e
r
q DC power cable ................................................... 1
w Hand microphone (HM-36) ................................. 1
e Fuse (FGB 20 A; for DC cable) ........................... 1
r Fuse (FGB 4 A; internal use) .............................. 1
1
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PANEL DESCRIPTION
2
n Front panel
Speaker
Function Display
@
!
!
!
@
IC-718
A=B
A/B
V/M
MW
1
4
2
3
6
9
MODE
FIL
TS
M-CL
SCN
ANF
M
V
5
8
0
SPL
VOX
7
F-INP
ENT
.
NR
!
!
SET
NB
COMP
ATT
q
w
PWR
AF
RF/SQL
RIT
SHIFT
MIC
PHONES
P.AMP
TUNER
!
!
!
LOCK
Z DN
UP Y
CH
e
r t
y u
i
o
! !
or rotate the control counterclockwise to decrease the
RIT
q POWER SWITCH [PWR]
Push momentarily to turn power ON.
frequency. “
” appears on the display.
• The shift frequency range is 1.2 kHz.
• Turn the optional DC power supply ON in advance.
Push for 1 sec. to turn power OFF.
While pushing and holding [SET], push [PWR]
to enter the initial set mode. (p. 41)
u IF SHIFT CONTROLS [SHIFT] (Outer control; p.
21)
Shifts the center frequency of the receivers’s IF
pass-band.
w MICROPHONE CONNECTOR [MIC]
Accepts supplied or optional microphone.
• See p. 55 for appropriate microphones.
•
Rotate the control colckwise to shift the center
frequency higher, or rotate the control counterclockwise
to shift the center frequency lower.
• See p. 8 for microphone connector information.
i LOCK SWITCH [LOCK] (p. 19)
Push momentarily to turn the dial lock function ON
and OFF.
e HEADPHONE JACK [PHONES] (p. 11)
Accepts headphones (8 Ω).
• The dial lock function electronically locks the main dial.
• When the optional UT-102 VOICE SYNTHESIZER UNIT is
installed (p. 49), push for 1 sec. to have the frequency,
etc. announced.
• When headphones are connected, the internal speaker
or connected external speaker does not function.
r AF CONTROL [AF] (inner control)
Varies the audio output level from the speaker.
• UT-102 operation can be adjusted in initial set mode
(p. 46).
t RF GAIN/SQUELCH CONTROL [RF/SQL]
(outer control; pgs. 20, 44)
o MAIN DIAL
Adjusts the squelch threshold level. The squelch
removes noise output from the speaker (closed
condition) when no signal is received.
Changes the displayed frequency, selects quick/
initial set mode items, etc.
• The squelch is available for all modes.
! PREAMP SWITCH [P.AMP] (p. 21)
• The control can be set as the squelch plus RF gain
controls or squelch control only (RF gain is fixed at
maximum) in initial set mode.
ꢀPush momentarily to turn the preamp ON or OFF.
! CH SWITCH [CH] (p. 35)
ꢀPush momentarily to turn the memory channel
select function ON or OFF.
• [MEMO] blinks while memory channel select function is
turned on.
y RIT CONTROLS [RIT] (Inner control; p. 21)
Shifts the receive frequency without changing
the transmit frequency.
•
Rotate the control clockwise to incerase the frequency,
2
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2
PANEL DESCRIPTION
• Push several times (or push and hold) [√ DN]/[UP ∫]
until desired memory channel appears.
ꢀPush [NB] for 1 sec to enter the noise blanker
level setting condition.
• After pushing [F-INP/ENT], push desired memory
channel number from the keypad, then push [FINP/
ENT] again to select the memory channel directory.
• Push [CH] to exit the memory channel select function.
! QUICK TUNING STEP SWITCH [TS] (pgs. 18, 19)
Selects a quick tuning step or turns the quick
tuning step OFF.
• While the quick tuning indicator () is displayed,
the frequency can be changed in kHz step.
While the quick tuning step is OFF, it turns the 1
Hz step ON and OFF when pushed for 1 sec.
• 1 Hz indication appears and the frequency can be
changed in 1 Hz steps.
! MEMORY CHANNEL (BAND) UP/DOWN
SWITCHES [√ DN]/[UP ∫] (p. 35)
Push one or more times to select the memory
channel, while [MEMO] indicator is blinking.
Push to select a band.
Push to select the quick/initial set mode items
while quick/initial set mode is selected.
While the kHz quick tuning step is selected, it enters
tuning step set mode when pushed for 1 sec.
@ FILTER SWITCH [FIL] (p. 24)
! ATTENUATOR SWITCH [ATT] (p. 22)
ꢀPush to toggle the 20 dB attenuator function ON
and OFF.
Push momentarily to toggle between the pre-
programmed normal, wide and narrow IF filters
for the selected operating mode.
! TUNER SWITCH [TUNER] (pgs. 28, 29)
Push momentarily to toggle the automatic
antenna tuner function ON/OFF.
@ MODE SWITCHES [LSB/USB]/[CW/CW-R]/
[RTTY/RTTY-R]/[AM] (p. 20)
Push to toggle an operating mode.
• Push[MODE] for 1 sec. during SSB mode to toggle
• An optional antenna tuner must be connected.
Push for 1 sec. to manually tune the tuner.
• An optional antenna tuner must be connected.
• When the tuner cannot tune the antenna, the tuning
between LSB or USB.
• Push [MODE] for 2 sec. during CW or RTTY mode, to
toggle between CW and CW reverse or RTTY and
circuit is bypassed automatically after 20 sec.
RTTY reverse. “
” appears on the display.
! SET SWITCH [SET]
Push for 1 sec. to enter the quick set mode. (p.
41)
Pushing and holding [SET], and then push
[POWER] to enter the initial set mode. (p. 41)
Push to toggle the meter function; (p. 26)
• PO: indicates the relative RF output power.
• ALC: Indicates ALC level.
• SWR: indicates the SWR over the transmission line.
! MIC COMPRESSOR SWITCH [COMP] (p. 27)
Toggles the Mic. compressor function ON and OFF.
! KEYPAD
The keypad can be used for several functions as
discribed below:
• [F-INP/ENT], keypad then [F-INP/ENT].
— Direct frequency input. (pgs. 4, 7)
•
[CH], [F-INP/ENT], keypad then [F-INP/ENT] then [V/M]
— Memory channel selection. (pgs. 4, 35)
• [V/M], [A=B], [A/B], [MW], [M-CL], [M≈V], [SPL],
[SCAN], [VOX], [NR] (option) and [ANF] (option)
switch. (p. 4)
! NOISE BLANKER SWITCH [NB] (p. 22)
ꢀToggles the noise blanker ON and OFF. The
noise blanker reduces pulse-type noise such as
that generated by automobile ignition systems.
This function is not effective against non pulse-
type noise.
3
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2
PANEL DESCRIPTION
n Front panel (continued)
#
#
A=B
A/B
V/M
MW
1
4
2
5
8
0
3
6
9
MODE FILTER
TS
@
@
@
@
A=B
A/B
V/M
MW
1
4
2
3
6
9
M=CL
SCN
ANF
M
V
#
#
M=CL
SCN
ANF
M
V
5
8
0
SPL
VOX
7
@
@
@
SPL
VOX
7
F-INP
ENT
.
NR
F-INP
ENT
.
NR
SET
NB
COMP
ATT
@
P.AMP
TUNER
K
DN
UP
CH
Z
Y
@ VFO/MEMORY SWITCH/1 [V/M•1] (pgs. 16, 35)
Toggles the operating mode between VFO
mode or memory mode when pushed.
@ SCAN SWITCH/8 [SCAN•8] (p. 39)
Push momentarily to start/stop the programmed
scan in VFO mode.
Push momentarily to start/stop the memory scan
in memory mode.
@ MEMORY WRITE SWITCH/4 [MW•4] (p. 36)
Stores the displayed frequency and operating
mode into the selected memory channel when
pushed for 1 sec.
@ VOX SWITCH/9 [VOX•9] (p. 27)
Turn the VOX function ON or OFF when pushed
in SSB modes.
@ SPLIT SWITCH/7 [SPL•7] (p. 30)
Turns the split frequency operation ON or OFF
when pushed.
# M≈V SWITCH/6 [MV•6] (p. 37)
Transfers the memory contents to VFO when
pushed for 1 sec.
@ NR SWITCH/. [NR• . ] (p. 23)
Toggles the optional noise reduction function ON
or OFF when pushed. Functions in all modes.
• An optional UT-106 DSP UNIT is required.
• [NR] appears on the display.
# MEMORY CLEAR SWITCH/5 [M=CL•5] (p. 38)
ꢀClears the selected readout memory channel
contents when pushed for 1 sec. in memory mode.
• [BLANK] appears above the memory channel number.
Enters noise reduction level set mode when
pushed for 1 sec.
# VFO SELECT SWITCH/3 [A/B•3] (p. 16)
Toggles between VFO A or VFO B in VFO
mode.
@ ANF SWITCH/0 [ANF•0] (p. 23)
ꢀToggles the Automatic Notch Filter function ON or
OFF. Functions in SSB and AM modes.
• An optional UT-106 DSP UNIT is required.
• [ANF] appears on the display.
Toggles between transmission VFO and
reception VFO during split operation.
# VFO EQUALIZATION SWITCH/2 [A=B•2]
Equalize the frequency and operating mode of the
two VFO’s.
@ FRQUENCY INPUT/ENTER SWITCH
[F-INP/ENT]
•
The VFO B frequency and operating mode are equalized
[F-INP/ENT], then keypad then [F-INP/ENT]
with the VFO A frequency and operating mode.
— Direct frequency input. (p. 17)
[CH] then [F-INP/ENT], then keypad then
[F-INP/ENT]. Push [CH].
— Direct memory number selection. (p. 35)
4
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2
PANEL DESCRIPTION
n Function display
!
!
!
!
q
w
e
r
!
!
!
t
y
u
!
i
o
!
!
q LOCK INDICATOR (p. 19)
o SIGNAL/SQL/RF-GAIN METER
Appears when the dial lock function is in use.
Functions as an S-meter while receiving.
Functions as a Power, ALC or SWR meter while
w RECEIVE INDICATOR
transmitting. (p. 26)
Appears while receiving a signal or when the
squelch is open.
! VFO/MEMORY INDICATOR (p. 16)
“VFO A” or “B” appears when VFO mode is
selected.
e TUNE INDICATOR
Appears while the automatic tuning function is
“MEMO” appears when memory mode is selected.
activated.
! MEMORY CHANNEL NUMBER READOUT (p. 35)
r TRANSMIT INDICATOR
Shows the selected memory channel number.
Appears while transmitting.
! BLANK INDICATOR (p. 38)
t FUNCTION INDICATORS
Shows that the displayed memory channel is not
“P.AMP” appears when antenna preamp is in
programmed.
use.
• This indicator appears both in VFO and memory mode.
“ATT” appears when the attenuator function is in
use.
“NB” appears when the Noise Blanker function
is turned ON.
! SPLIT INDICATORS (p. 30)
Appears when the split frequency operation is in
use.
“BK” appears when the semi break-in function is
selected in quick set mode.
“F-BK” appears when the full break-in function
activates in CW mode. (p. 31)
“VOX” appears when the VOX function is
selected in quick set mode.
! RIT INDICATOR (p. 21)
Appears when the RIT function is in use.
! FREQUENCY READOUT
Shows the operating frequency.
“COM” appears when the speech compressor
activates in SSB mode.
“SCAN” appears when the scan function is
activated.
! REVERSE INDICATOR (p. 20)
Appears when the CW reverse or RTTY reverse
mode is selected.
• Flashes when scan is paused.
!
WIDE/NARROW FILTER INDICATORS (pgs. 24, 25)
” appears when the wide IF filter is selected.
ꢀ“ ” appears when the narrow IF filter is
“
y DSP UNIT INDICATOR
Appears when an optional UT-106 DSP UNIT is
installed.
selected.
! PROGRAMMABLE TUNING STEP INDICATORS
Appears when the programmable tuning step is
selected.
u
AUTOMATIC NOTCH FILTER INDICATOR (p. 23)
Appears when the optional Automatic Notch Filter
function is in use.
! MODE INDICATORS (p. 20)
i NOISE REDUCTION INDICATOR (p. 23)
Appears when the optional Noise Reduction
function is in use.
Indicates the selected operating mode.
5
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2
PANEL DESCRIPTION
n Rear panel
q
w
e
!
o
i
u
y
t
r
u ELECTRONIC KEYER JACK [KEY]
Accepts a paddle to activate the internal electronic
keyer.
q ANTENNA TERMINAL [ANT] (p. 10)
Connects a 50 Ω antenna with a PL-259 connector
and a 50 Ω coaxial cable.
• Selection between the internal electronic keyer and
straight key operation can be made in initial set mode.
w DC POWER SOCKET [DC 13.8V] (p. 12)
Accepts 13.8V DC through the supplied DC power
cable.
(⊕)
When connecting
a straight key
(dot)
When connecting
(com)
Rear panel view
a paddle
(dash)
e TUNER CONTROL SOCKET [TUNER] (p. 14)
Accepts the control cable from an optional AH-4
AUTOMATIC ANTENNA TUNER.
i ALC INPUT JACK [ALC]
Connects to the ALC output jack of a non-Icom
linear amplifier.
r CI-V REMOTE CONTROL JACK [REMOTE] (p. 57)
Designed for use with a personal computer for
remote operation of transceiver functions.
o SEND CONTROL JACK [SEND] (p. 14)
Goes to ground while transmitting to control
external equipments such as a liner amplifier.
• Max. control level: 16 V DC/2 A
t EXTERNAL SPEAKER JACK [EXT SP] (p. 11)
Connects an 8 Ω external speaker, if desired.
• When an external speaker is connected, the internal
speaker does not function.
! GROUND TERMINAL [GND] (p. 9)
Connects the terminal to ground.
y ACCESSORY SOCKET [ACC] (p. 7)
Enables connection to external equipment such as
an optional AT-180 AUTOMATIC ANTENNA TUNER,
a TNC for data communications or a liner amplifier,
etc.
6
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2
PANEL DESCRIPTION
D ACC SOCKET INFORMATION
• ACC socket
ACC
PIN # NAME
DESCRIPTION
SPECIFICATIONS
Output voltage
Output current
:8 V 0.3 V
:Less than 10 mA
1
2
8 V
Regulated 8 V output.
GND
Connects to ground.
Input/output pin.
Goes to ground when transmitting.
When grounded, transmits.
Ground level
Input current
:–0.5 V to 0.8 V
:Less than 20 mA
3
SEND
4
5
BDT
Data line for the optional AT-180.
Band voltage output.
(Varies with amateur band)
BAND
Output voltage
Control voltage
:0 to 8.0 V
:–4 to 0 V
13
6
7
ALC
NC
ALC voltage input.
9
5
1
10 11 12
Input impedance :More than 10 kΩ
6
2
7
3
8
4
Rear panel
view
8
13.8 V 13.8 V output when power is ON.
Output current
:Max. 1 A
9
TKEY
FSKK
Key line for the AT-180.
RTTY keying input.
Ground level
Input current
:–0.5 to 0.8 V
:Less than 10 mA
10
Input impedance :10 kΩ
11
12
13
MOD
AF
Modulator input.
Input level
:Approx. 100 mV
rms
AF detector output.
Fixed, regardless of [AF] position.
Output impedance :4.7 kΩ
Output level
:100 to 300 mV rms
Squelch output.
Goes to ground when squelch opens.
SQL open :Less than 0.3 V/5 mA
SQL closed :More than 6.0 V/100 µA
SQLS
• When connecting the ACC conversion cable (OPC-599)
q FSKK
t AF
2
8
5
4
w GND
e SEND
r MOD
y SQLS
u 13.8 V
i ALC
3
1
6
7
13
9
5
1
10 11 12
ACC 1
6
2
7
3
8
4
q 8 V
t ALC
2
5
4
w GND
y NC
3
1
e SEND
r BAND
u 13.8 V
6
7
ACC 2
7
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2
PANEL DESCRIPTION
n Microphone (HM-36)
q
w
q UP/DOWN SWITCHES [UP]/[DN]
Change the selected readout frequency or memory
channel.
w PTT SWITCH
Push and hold to transmit; release to receive.
• Continuous pushing changes the frequency or memory
channel number continuously.
• The [UP]/[DN] switch can simulate a key paddle.
Preset in the CW PADDL in initial set mode. (p. 31)
• MICROPHONE CONNECTOR
[MIC]
PIN NO.
FUNCTION
DESCRIPTION
Max. 10 mA
(Front view)
w
+8 V DC output
Frequency up
Frequency down
Squelch open
Squelch closed
i Main readout AF output
(varies with [AF]/[BAL])
Ground
e
r
q Microphone input
u GND
Ground through 470 Ω
“LOW” level
(Microphone ground)
w +8 V DC output
y GND (PTT ground)
“HIGH” level
e Frequency up/down
t PTT
r Main readout squelch switch
CAUTION: DO NOT short pin 2 to ground as this
can damage the internal 8 V regulator.
• HM-36 SCHEMATIC DIAGRAM
MICROPHONE
MICROPHONE CABLE MICROPHONE PLUG
+
2k
10µ
4700p
+
0.33µ
4700p
MIC
ELEMENT
q
u
w
i
r
y
DOWN
UP
e
t
PTT
RECEIVE
TRANSMIT
470
8
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INSTALLATION AND CONNECTIONS
3
n Unpacking
n Antenna connection
After unpacking, immediately report any damage to the
delivering carrier or dealer. Keep the shipping cartons.
For radio communications, the antenna is of critical
importance, along with output power and sensitivity.
Select antenna(s), such as a well-matched 50
Ω
For a description and a diagram of accessory
equipment included with the IC-718, see ‘Supplied
accessories’ on p. 1 of this manual.
antenna, and feedline. 1.5:1 or better of Voltage
Standing Wave Ratio (VSWR) is recommended for your
desired band. Of course, the transmission line should be
a coaxial cable.
CAUTION: Protect your transceiver from
n Selecting a location
lightning by using a lightning arrestor.
Select a location for the transceiver that allows
adequate air circulation, free from extreme heat, cold,
or vibrations, and away from TV sets, TV antenna
elements, radios and other electro-magnetic sources.
PL-259 CONNECTOR INSTALLATION EXAMPLE
q
30 mm
Slide the coupling ring
down. Strip the cable
jacket and soft solder.
The base of the transceiver has an adjustable stand
for desktop use. Set the stand to one of two angles
depending on your operating conditions.
Coupling ring
10 mm (soft solder)
w
10 mm
Soft
Strip the cable as
shown at left. Soft
solder the center
conductor.
solder
1–2 mm
solder solder
e
r
Slide the connector
body on and solder it.
Screw the coupling
ring
onto
the
connector body.
30 mm ≈ 9⁄8 in 10 mm ≈ 3⁄8 in 1–2 mm ≈ 1⁄16 in
n Grounding
To prevent electrical shock, television interference
(TVI), broadcast interference (BCI) and other
problems, ground the transceiver through the
GROUND terminal on the rear panel.
Antenna SWR
Each antenna is tuned for a specified frequency
range and SWR may be increased out-of-range.
When the SWR is higher than approx. 2.0:1, the
transceiver’s power drops to protect the final
transistor. In this case, an antenna tuner is useful
to match the transceiver and antenna. Low SWR
allows full power for transmitting even when using
the antenna tuner. The IC-718 has an SWR meter to
For best results, connect a heavy gauge wire or strap
to a long earth-sunk copper rod. Make the distance
between the [GND] terminal and ground as short as
possible.
monitor the antenna SWR continuously
.
R WARNING: NEVER connect the
[GND] terminal to a gas or electric pipe, since the
connection could cause an explosion or electric
shock.
9
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3
INSTALLATION AND CONNECTIONS
n Required connections
• Front panel
i718
V/M
MW
1
4
A=B2
A/B
3
6
9
MODE
FIL
TS
M-CL
M
V
5
MICROPHONES (p. 55)
SPL
SCN
VOX
7
8
F-INP
ENT
.
NR
ANF
0
SET
NB
COMP
ATT
PWR
AF
RF/SQL
RIT
SHIFT
MIC
PHONES
P.AMP
TUNER
LOCK
CH
Z
DN
UP
Y
HM-36
SM-20
• Rear panel
DC POWER SUPPLY
PS-85
ANTENNA (p. 56)
[Example]: 1.8–30 MHz bands
AH-710
ft
.3
0
8
;
m
.5
24
x.
ro
pp
a
GROUND (p. 9)
CW KEY
Use the heaviest gauge wire
or strap available and make
the connection as short as
possible.
A straight key can be used when the
internal electronic keyer is turned
OFF in “CW PADDL” in initial set
mode. (p. 31)
Grounding prevents electrical
shocks, TVI and other
problems.
10
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3
INSTALLATION AND CONNECTIONS
n Advanced connections
• Front panel
IC-718
V/M
MW
1
4
A=B2
A/B
3
6
9
MODE
FIL
TS
M-CL
M
V
5
SPL
SCN
VOX
7
8
F-INP
ENT
.
NR
ANF
0
SET
NB
COMP
ATT
PWR
AF
RF/SQL
RIT
SHIFT
MIC
PHONES
MIC
P.AMP
TUNER
LOCK
The AFSK modulation signal can be
CH
Z
DN
UP
Y
input from [MIC]. (p. 33)
HEADPHONES
• Rear panel
[REMOTE] (p. 57)
Used for computer control and transceive operation.
AH-4 (p. 55)
with
AH-2b
or long wire
ANTENNA (p. 13)
Connects a liner amprifier, etc.
ACC SOCKETS (p. 7)
EXTERNAL SPEAKER (p. 55)
[SEND], [ALC]
(p. 14)
Used for connecting a
non-Icom linear ampli-
fier.
SP-21, etc
11
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3
INSTALLATION AND CONNECTIONS
n Power supply connections
CAUTION: Before connecting the DC power
cable, check the following important items. Make
Use an optional PS-85 DC POWER SUPPLY when
operating the IC-718 with AC power. Refer to the
diagrams below.
sure:
• The [POWER] switch is OFF.
• Output voltage of the power source is 12–15 V
when you use a non-Icom power supply.
• DC power cable polarity is correct.
Red
Black
: positive + terminal
: negative _ terminal
CONNECTING PS-85 DC POWER SUPPLY
PS-85
Connect to an AC outlet
using the supplied AC cable.
1
3
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
DC power
socket
DC power cable
CONNECTING NON-ICOM DC POWER SUPPLY
DC power supply AC outlet
13.8 V 20 A
DC power
socket
_
+
13
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
AC cable
_
black
+red
Supplied
DC power cable
20 A fuses
CONNECTING A VEHICLE BATTERY
NOTE: Use terminals for
the cable connections.
NEVER connect to
a 24 V battery.
+ red
Crimp
_ black
Grommet
12 V
Solder
battery
Supplied
DC power cable
Fuses
NEVER connect to a battery without supplied DC fuses,
otherwise the fire hazard may occur.
12
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3
INSTALLATION AND CONNECTIONS
n Linear amplifier connections
CONNECTING THE IC-PW1
Remote control cable (supplied with the IC-PW1)
ACC cable (supplied with the IC-PW1)
OPC-599 conversion cable
To an
antenna
ACC-1
(option)
REMOTE
ANT
Coaxial cable
(supplied with the IC-PW1)
INPUT1
REMOTE
ACC
EXCITER
1&2
1
GND
13
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
GND
IC-PW1
IC-718
Ground
AC outlet
(Non-European versions : 100–120/220–240 V
European version : 230 V)
CONNECTING THE IC-4KL
Coaxial cable (supplied with the IC-4KL)
ACC cable (supplied with the IC-4KL)
To an
antenna
OPC-599 conversion cable
(option)
ACC
IC-4KL
Remote
controller
IC-4KL
13
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
IC-718
Remote control cable
(supplied with the IC-4KL)
Ground
AC outlet (220–240 V)
13
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3
INSTALLATION AND CONNECTIONS
CONNECTING A NON-ICOM LINER AMPLIFIER
To an
antenna
R WARNING:
Set the transceiver output
50 Ω coaxial cable
power and linear amplifier
ALC output level referring
to the linear amplifier
instruction manual.
IC-718
ANT
RF OUTPUT RF INPUT
SEND
ALC
13
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
The ALC input level must
be in the range 0 V to –4 V,
and the transceiver does not
accept positive voltage. Non-
matched ALC and RF power
settings could cause a fire or
ruin the linear amplifier.
Non-Icom linear amplifier
ALC
SEND
The specifications for the SEND relay are 16 V
DC 2 A. If this level is exceeded, a large external
relay must be used.
n External antenna tuners
CONNECTING THE AH-4 (p. 29)
Long wire or optional AH-2b
Coaxial cable (from the AH-4)
Control cable
IC-718
AH-4
Ground
Ground
CONNECTING THE AT-180 (p. 28)
Turn the IC-718’s power OFF when connecting
the AT-180, otherwise, the CPU may malfunction
and the AT-180 may not function properly.
DO NOT! connect AT-180 and AH-4 at the same
time. Both tuners will not function correctly.
ACC cable supplied with the AT-180
Coaxial cable supplied
with the AT-180
HF
antenna
one of two
[ANT]
AT-180 [ACC]
connectors
[ACC]
IC-718
1
3
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
Ground
14
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FREQUENCY SETTING
4
n When first applying power (CPU resetting)
Before first applying power, make sure all
connections required for your system are complete
by referring to Chapter 3. Then, reset the transceiver
using the following procedure.
Resetting CLEARS all programmed contents in
memory channels and returns programmed values
in quick/initial set mode to default values.
[Z] [Y]
[PWR]
q Make sure the transceiver power is OFF.
w While pushing and holding [∫ UP] and [√ DN],
push [PWR] for 1 sec. to turn power ON.
• The internal CPU is reset.
Under cooler temperatures, the LCD may appear
dark and unstable after turning power ON. This is
normal and does not indicate any equipment
malfunction.
• The transceiver displays its initial VFO frequencies
when resetting is complete.
e All quick/initial set mode settings are returned to
default values. (p. 41)
n Initial settings
After resetting the transceiver, set controls and
switches as shown in the figure below.
CCW : counterclockwise
[METER]: Po
[NB], [COMP]:
OFF
[POWER]: OFF
[P.AMP], [ATT],:
OFF
[AF]: Max. CCW
[LOCK]: OFF
[RIT]: Center
[RF/SQL]: 12 o'clock
[IF SHIFT]: Center
Turn power ON, then check the display. If any of the
following indicators appear, turn them OFF as follows:
• Quick tuning step indicator “Z”: Push [TS].
• 1 Hz frequency readout
:
Push [TS] for 1 sec.
(while quick tuning
step is OFF)
• RIT indicator “ RIT
• Split indicator “
”
: Center.
: Push [SPL].
”
15
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4
FREQUENCY SETTING
n VFO description
VFO is an abbreviation of Variable Frequency
Oscillator, and traditionally refers to an oscillator.
The IC-718 VFO can store a frequency and an
operating mode.
You can call up a desired frequency to the VFO with
the keypad or the memory transfer function (see p. 37).
You can also change the frequency with the tuning dial
and select the operating mode with the [MODE] switch
or call up previously accessed frequency and modes
with the band stacking register (p. 18).
The IC-718 has two VFOs, specially suited for split
frequency opration. The VFOs are called VFO A and
VFO B. You can call up the desired VFO.
• Differences between VFO mode and memory mode
VFO MODE
MEMORY MODE (pgs. 35–38)
Each VFO shows a frequency and operating mode.
If the frequency or operating mode is changed, the
VFO automatically memorizes the new frequency or
new operating mode.
Each memory channel shows a frequency and
operating mode like a VFO. Even if the frequency
or mode is changed, the memory channel does not
memorize the new frequency or operating mode.
When the VFO is selected from another VFO
or memory mode, the last-used frequency and
operating mode for that VFO appears.
When the memory channel is selected from another
memory channel or VFO mode, the memorized
frequency and operating mode appear.
[EXAMPLE]
[EXAMPLE]
VFO is selected.
Memory channel 1
is selected.
The frequency
is changed.
The frequency
is changed.
Memory mode
is selected.
Another memory
channel is selected.
VFO is selected
again.
Memory channel 1
is selected again.
Changed frequency (14.123 MHz) appears.
Changed frequency (14.123 MHz) does not appear and
memorized frequency (14.100 MHz) appears instead.
16
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4
FREQUENCY SETTING
n Frequency setting
• For general coverage receiver use
The IC-718 has a general coverage receiver band.
q Push [∫ UP] or [√ DN] one or more times to
D Using the tuning dial
q Push [∫ UP] or [√ DN] one or more times to
select the desired ham band.
select the general coverage receiver band.
w Select the desired operating mode with the mode
Note: Even if you select the ham band, you can set the
transceiver to the general coverage frequency. When
the displayed frequency exits the transmit frequency
range (ham band), a band edge beep may be emitted
(depends on initial set mode programming).
switch. (p. 20).
e Rotate the tuning dial to set the desired frequency
D Direct frequency entry with keypad
The transceiver has a keypad for direct frequency
entry as described below.
w Push [•] on the keypad.
e Push the numeral keys to enter the frequency
digits below 1 MHz.
q Push [F-INP/ENT], then push the numeral keys
on the keypad to enter the MHz digits for the
desired frequency.
• If a key is mistakenly pushed, push [SET] (or any key
except keypad) and start again from the beginning.
r Push [F-INP/ENT] to set the input frequency.
•
When pushing [F-INP/ENT] after entering the MHz
digits, zeros are automatically entered for the kHz digits.
• If a key is mistakenly pushed, push [SET] (or any key
except keypad) and start again from the beginning.
• When entering the same MHz digits as the displayed
frequency, this step can be skipped.
[EXAMPLE]
•Start
F-INP
ENT
•To set to 21.025 MHz
F-INP
ENT
ANF
A=B
NR
M=CL
2
V/M
A=B
1
0
2
5
•To set to 706 KHz (0.706 MHz)
F-INP
ENT
ANF
ANF
NR
SPL
7
M
V
0
6
0
•To set to 7 MHz
F-INP
ENT
SPL
7
•To change 14.195 to 14.850 MHz
F-INP
ENT
NR
SCN
M=CL
8
5
17
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4
FREQUENCY SETTING
D Band stacking resister
The band stacking register automatically stores the
last frequency and mode used for each band. This
is convenient for contest operation, etc. The tables
below shows the band stacking register default
settings for each band.
BAND
18 MHz
21 MHz
24 MHz
28 MHz
29 MHz
BAND
BAND
USB
USB
USB
USB
USB
BAND
1.9 MHz
3.5 MHz
7 MHz
BAND
1.91000 MHz
3.55000 MHz
7.05000 MHz
10.12000 MHz
14.10000 MHz
15.10000 MHz
BAND
CW
18.10000 MHz
21.20000 MHz
24.95000 MHz
28.50000 MHz
29.50000 MHz
LSB
LSB
CW
10 MHz
14 MHz
General
USB
USB
D Band selection
All HF ham bands and a general coverage receiver
band are included in the IC-718.
Z
DN
Push [∫ UP]/[√ DN] to select the desired band.
• Pushing [∫ UP]/[√ DN] continuously scrolls through the
available bands.
General (new)
UP Y
Note: For example, if 6.10000 MHz is resistered as
the General coverage frequency, then the General
coverage band automatically positions itself between
3.5 MHz and 7 MHz band.
General (old)
D Programmable tuning steps
Programmable tuning steps are available to suit your
operating requirements.
These tuning steps are:
• Selectable from 0.1, 1, 5, 9, 10, 100 kHz
Programmable tuning
step indicator
q
Push [TS], the programmable tuning step indicator,
“,” then appears above the 1 kHz.
• Rotating the tuning dial changes the frequency
according to the set tuning step.
10 KHz tuning steps is
selected.
w Push [TS] for 2 sec. while the programmable
tuning step indicator appears to enter the tuning
step set mode.
e Rotate the tuning dial to set the desired tuning
step.
r Push [TS] to exit the tuning step set mode.
t Rotate the tuning dial to change the frequency
according to the set tuning step.
18
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4
FREQUENCY SETTING
D 1 Hz and 10 Hz tuning steps
When the programmable tuning step, “,” disappear,
rotating the tuning dial changes the frequency in
increments of 1 or 10 Hz.
Rotating the tuning dial
changes the frequency
in 10 Hz steps.
q
Push [TS] one or more times until the programmable
TS
tuning step indicator “” disappears.
w Push [TS] for 1 sec. to toggle between the 1 and
10 Hz step settings.
Push
for 1 sec.
• When the 1 Hz step is selected, the 1 Hz digit
appears in the frequency indication; when the 10 Hz
step is selected, the 1 Hz digit disappears from the
frequency indication.
Rotating the tuning dial
changes the frequency
in 1 Hz steps.
[TS] SWITCH FLOW CHART
Programmable step tuning
(100 Hz –100 kHz)
10 Hz tuning
momentarily
1 sec.
1 sec.
momentarily
1 sec.
1 Hz tuning
Selectable for each mode.
n Dial lock function
The dial lock function prevents accidental changes
caused by the tuning dial. The lock function
electronically locks the dial.
“LOCK” appears while the lock
function is activated.
Push [LOCK] momentarily to toggle the lock function
ON and OFF.
• “LOCK” appears in the function display while the lock
function is activated.
19
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5
RECEIVE AND TRANSMIT
n Mode selection
The following modes are available in the IC-718:
SSB (LSB/USB), CW, CW REV (CW reverse), RTTY,
RTTY REV (RTTY reverse) and AM.
OPERATING MODE SELECTION
MODE
Push [MODE] one or more times to select desired
operation mode.
Push [MODE] for 1 sec. to toggle between USB
and LSB. (SSB mode only)
Push
USB
CW
LSB
CW
momentarily
MODE
Push [MODE] for 1 sec. to toggle between CW
and CW reverse or RTTY and RTTY reverse. (CW
and RTTY mode only)
Push
RTTY
RTTY
for 1 sec.
• The selected mode is indicated in the function display.
AM
Note: If desired mode cannot be selected, it’s use
may inhibited by initial set mode. (p. 44)
n RF gain and Squelch
The IC-718 uses the same control, [RF/SQL], to
adjust either the RF gain or the squelch. [RF/SQL]
adjusts either the RF gain or the squelch depending
on the operating mode selected and the condition of
the RF/SQL item in initiaset mode (p. 44).
• When set as the [RF/SQL] control
Maximum RF gain
Squelch is open.
S-meter squelch
threshold
RF gain adjustable
range
S-meter squelch
• [RF/SQL] control priority
Set mode
setting
USB, LSB,
CW, RTTY
AM
• When set as the [SQL] control
rS (RF/SQL)
RF/SQL
RF/SQL
SQL*
(default)
RF GAIN
At (AUTO)
Sq (SQL)
S-meter squelch
threshold
SQL*
SQL*
Squelch is open.
S-meter squelch
* The RF gain is set to maximum level when the [RF/SQL]
is set as [SQL] control.
Shallow
Deep
• When set as the [RF] control
The RF (Radio Frequency) gain is used to adjust the
receiver gain.
• Shallow rotation moves the S-meter to the right indicating
the signal strength which can be received.
Maximum RF gain
Adjustable range
Minimum RF gain
The recommended position for RF gain is the 12
o’clock position since this sets RF gain to the max.
The SQUELCH removes noise output from the
speaker (closed condition) when no signal is received.
The squelch is available for the other modes.
• A segment appears in the S-meter to indicate the
S-meter squelch level.
20
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5
RECEIVE AND TRANSMIT
n Function for receive
ï IF shift function
The IF shift function electronically narrows the
passband frequency of the IF (intermediate frequency)
and cuts out higher or lower frequency components of
the IF to reject interference. The function shifts the IF
frequency up to 1.2 KHz in SSB/CW/RTTY modes
and up 250 Hz in CW-narrow/RTTY narrow modes.
The IF shift is not available in AM mode.
IF SHIFT OPERATION EXAMPLE
• Adjust the [SHIFT] control for a minimum
interference signal level.
• When IF shift is used, the audio tone may be
changed.
• Set the IF shift control to its center position when
there is no interference.
Both controls at
center position
Cutting a lower
passband
Cutting higher
passbands
SHIFT
SHIFT
SHIFT
Passband
Passband
Interference
Interference
IF center frequency
Desired signal
Desired signal
ï RIT function
The RIT (Receive Incremental Tuning) function
compensates for off-frequencies of communicating
stations. The function shifts the receive frequency up
to 1.2 KHz without moving the transmit frequency.
w To cancel the RIT
function, rotate the RIT
control to the center
RIT off position
position.
RIT
• “
” disappears.
q Rotate the RIT control to cancel the off-
frequencies.
RIT
• “
” appears on the display.
• The transmit frequencies are not shifted.
ï Preamp
The preamp amplifies received signals in the front
end circuit to improve the S/N ratio and sensitivity.
Turn this function ON when receiving weak signals.
Push [P.AMP] to toggle between preamp or turn
the preamp OFF.
Appears when the
preamp ON.
• Preamp functions below 1.59999 MHz, but sensitivity
may reduce in some cases.
21
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5
RECEIVE AND TRANSMIT
ï Attenuator
The attenuator prevents desired signals from distorting
when very strong signals are near the desired
frequency or when very strong electric fields, such as
from broadcasting stations, are near your location.
Push [ATT] to toggle the 20 dB attenuator function
ON and OFF.
Appears when the
attenuator ON.
• “ATT” appears when the attenuator is turned ON.
ï Noise blanker
The noise blanker reduces pulse-type noise such as
that generated by automobile ignition systems.
q Push the [NB] switch to turn the noise blanker ON
or OFF.
w Push the [NB] for 1 sec. to enter the noise blanker
level setting condition.
Y
Y
e Rotate the tuning dial to adjust the noise blanker
level.
[NB] switch
r Push [NB] to exit the setting condition.
t Push [NB] again to turn the noise blanker function
OFF.
• [NB] indicator disappears.
• When using the noise blanker, received signals
may be distorted if they are excessively strong.
• The noise blanker function in AM mode can
be deactivated depending on initial set mode
setting. (p. 45)
ï Peak meter hold
The peak meter hold function freezes the highest
displayed bar segment in any meter function for about
0.5 sec. so that you can more easily read the meter.
This function can be turned ON and OFF in initial set
mode (p. 45).
Initial reception of a signal
results in an S-meter reading
of 40 dB.
The highest indicated bar
remains displayed for 0.5 sec.
even when the signal strength
decreases.
22
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5
RECEIVE AND TRANSMIT
n DSP function (Requires an optional UT-106 DSP UNIT)
ï NR (Noise reduction) function
When an optional UT-106 is installed (DSP appears
in the function display), noise reduction function can
be used.
• Noise reduction example
Noise reduction OFF
Noise components
Noise reduction activated
Desired
signal (CW)
The noise reduction function reduces noise
components and picks out desired signals which
are buried in noise. The received AF signals are
converted to digital signals and then the desired
signals are separated from the noise.
q Push [NR] to turn the noise reduction ON.
• [NR] indicator appears.
Higher setting of the [NR] level results in audio
signal masking or distortion. Set the [NR] level for
maximum clarity. The noise reduction function is
available in all modes.
w Push [NR] for 1 sec. to enter the noise reduction
level setting condition.
e Rotate the tuning dial to adjust the noise
reduction level.
r Push [NR] to exit the setting condition.
t Push [NR] again to turn the noise reduction OFF.
• [NR] indicator disappears.
ï ANF (Automatic Notch Filter) function
When an optional UT-106 is installed (DSP appears
in the function display), an auto notch function can
be used.
Auto notch OFF
Auto notch ON
The function automatically attenuates more than
3 beat tones, tuning signals, etc., even if they are
moving.
Desired
signal (AF)
Desired
signal (AF)
The auto notch functions in SSB mode only.
q Select SSB mode.
w Push [ANF] to turn the auto notch function ON.
• [ANF] indicator appears.
Unwanted tone
frequency
Particular frequency
is attenuated
e Push [ANF] again to cancel the function.
• [ANF] indicator disappears.
23
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5
RECEIVE AND TRANSMIT
n Filter selection
The filter selection switches the IF passband width
as shown in the table at right.
• Optional filter variations
Name
FL-52A
FL-53A
FL-96
Band width
Mode
CW/RTTY-N
CW/RTTY-N
SSB-W
The filter selection is automatically memorized in
each mode.
500 Hz/-6dB
250 Hz/-6dB
2.8 KHz/-6dB
1.8 KHz/-6dB
3.3 KHz/-6dB
q Select the desired mode with the mode switches.
w Push [FIL] one or more times to select the desired
filter combination.
FL-222
FL-257
SSB-N
SSB-W
•
ã or ç does not appear while in normal IF filter mode.
• ç appears when the wide IF filter is selected.
• ã appears when the narrow IF filter is selected.
When an optional filter is installed, set the optional
filter in initial set mode. An optional filter is not
selected by default.
Through
• Filter construction
2nd IF signal
CFWS450HT (6 kHz)***
FL-65 (2.4 kHz)*
2nd IF signal/DET
FL-257 (3.3 kHz)**
FL-96 (2.8 kHz)**
FL-222 (1.8 kHz)**
FL-52A (500 Hz)**
FL-53A (250 Hz)**
* AM; Narrow,
SSB/CW/RTTY; Normal
** OPTION
*** AM; Normal,
SSB/CW/RTTY; Wide
• Filter selection table
no
FL-52A
6 K*
FL-53A
FL-96
FL-222
FL-257
6 K*
6 K*
3.3 K
2.4 K
WIDE
NORMAL
NARROW
WIDE
6 K*
2.4 K
6 K*
2.4 K
250*
6 K*
2.4 K
250
6 K*
2.4 K
1.8 K
6 K*
2.8 K
SSB
CW
2.4 K
500*
6 K*
2.4 K
6 K*
6 K*
3.3 K
2.4 K
6 K*
2.8 K
NORMAL
NARROW
WIDE
2.4 K
2.4 K
500
2.4 K
2.4 K
1.8 K
6 K*
6 K*
6 K*
6 K*
6 K*
6 K*
2.4 K
250
2.8 K
3.3 K
RTTY
AM
NORMAL
NARROW
WIDE
2.4 K
2.4 K
500
2.4 K
2.4 K
1.8 K
2.4 K
NORMAL
NARROW
6 K
6 K
6 K
6 K
6 K
6 K
2.4 K
500*
2.4 K
250*
2.4 K
2.8 K*
2.4 K
1.8 K*
2.4 K
3.3 K*
2.4 K
( Hz )
Note:
*This selection can be used when the expanded filter
selection function is turned on in the initial set mode. (see right)
24
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5
RECEIVE AND TRANSMIT
n Filter setting
When an optional filter is installed, set the optional
filters in initial set mode. Optional filters are not
selected by default. (p. 47)
• Optional filter selection
D Optional filter setting
q While pushing and holding [SET], push [POWER]
to enter initial set mode.
w Push [UP Y] or [Z DN] one or more times until
“FIL” appears on the display.
e Rotate the tuning dial to select the installed filter.
• “no,” “52A,” “53A,” “96,” “222” and “257” indicate no
optional filter, FL-52A, FL-53A, FL-96, FL-222 and
FL-257, indicate respectively for 455 kHz IF filter
selection.
• Expanded filter selection “on”
r Push [PWR] to exit initial set mode.
D Expanded filter selection
• Wide filter setting
The selectable filter combinations can be expanded
by setting the expanded filter selection to ON. Then
extra wide or narrow filter can be selected on desired
mode.
q While pushing and holding [SET], push [PWR] to
enter initial set mode.
• Narrow filter setting
w Push [UP Y] or [Z DN] one or more times until
“EXP FIL” appears.
e Rotate the tuning dial to turn the expanded filter
selection ‘on’.
• If ‘on’ is selected, the expanded filter selection can be
used.
• Wide filter setting table
• Wide/narrow filter selecting
no
FL-52A
FL-53A
FL-96
FL-222
FL-257
r Push [UP Y] one or more times
until “WIDE ” or “NAR ”
appears on the display.
t Push [MODE] one or more times
to select the desired mode.
y Rotate the tuning dial to select a
filter.
u Repeat steps t and y to select
IF filters for other modes, if
desired.
• The filter combinations are stored
depending on operating modes.
i Push [POWER] to exit initial set
mode.
no
THU (6 K)
no
no
THU (6 K)
no
no
THU (6 K)
no
96 (2.8 K)
THU (6 K)
96 (2.8 K)
THU (6 K)
96 (2.8 K)
THU (6 K)
– – –
no
THU (6 K)
no
257(3.3 k)
THU (6 K)
SSB
257(3.3 k)
THU (6 K)
257(3.3 k)
THU (6 K)
– – –
CW
THU (6 K)
no
THU (6 K)
no
THU (6 K)
no
THU (6 K)
no
RTTY
THU (6 K)
– – –
THU (6 K)
– – –
THU (6 K)
– – –
THU (6 K)
– – –
AM
: default
• Narrow filter setting table
no
FL-52A
FL-53A
FL-96
FL-222
FL-257
– – –
no
no
– – –
– – –
222 (1.8 K)
SSB
52A (500)
52A (500)
53A (250)
53A (250)
– – –
– – –
– – –
– – –
222 (1.8 K)
222 (1.8 K)
– – –
– – –
CW
RTTY
AM
52A (500)
53A (250)
NOR (2.4 K)
NOR (2.4 K)
257 (3.3 K)
NOR (2.4 K)
96 (2.8 K)
NOR (2.4 K)
52A (500)
NOR (2.4 K)
53A (250)
NOR (2.4 K)
222 (1.8 K)
: default
25
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5
RECEIVE AND TRANSMIT
n Function for transmit
ï Output power and microphone gain
• Setting output power
q Push [SET] for 1 sec. to select quick set mode.
w Push [∫ UP]/[√ DN] one or more times to select
“RF Power”.
Maximum output
power is selected.
e Rotate the main dial to select the desired output.
• Output power is displayed in 101 steps (L, 1–99 and
H) but is continuously selectable.
• Available power
SSB/CW/RTTY:
AM:
2 (or less) –100 W
2 (or less) –40 W*
*Carrier power
• Setting microphone gain
Microphone gain must be adjusted properly so that
your signal does not distort when transmitted.
q Select SSB or another phone mode.
w Push [SET] for 1 sec. to enter the quick set mode.
e Push [∫ UP]/[√ DN] one or more times to select
“MIC GAIN”.
Microphone gain is
set to 50.
r When speaking into the microphone adjust the
mic gain so that the ALC meter does not peak
past the ALC zone.
ALC zone
t Push [SET] to exit quick set mode.
ï Meter function
The bar meter in the function display acts as an
S-meter (for relative signal strength) during receive
and can be selected for one of three functions during
transmit.
DISPLAY
MEASUREMENT
INDICATION
Indicates the relative RF output power.
Po
Indicates the ALC level. When the
meter movement shows the input signal
level exceeds the allowable level, the
ALC limits the RF power. In such cases,
reduce the microphone gain (see
above).
• Push [SET] one or more times to select the PO,
ALC and SWR meter mode.
ALC
Indicates the SWR over the transmis-
sion line.
SWR
26
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5
RECEIVE AND TRANSMIT
ï Microphone compressor
IC-718 has a built-in, low distortion Mic compressor
circuit. This circuit increases your average talk power
in SSB mode and is especially useful for DX’ing
when the receiving station is having difficulty copying
your signal.
Y
Y
q Selecting USB or LSB mode.
w Select the mic gain display in quick set mode.
• Push [SET] for 1 sec. to select quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select “MIC
[COMP] switch
GAIN”.
e Adjust the mic gain by rotating the main [DIAL].
•
While transmitting at your normal voice level, the ALC
meter should read at about the middle of the ALC zone.
• Be sure the mic gain is in the range of 20 to 50.
r Push [SET] to exit the quick set mode.
t Push [COMP] to turn mic compressor ON.
y Push [SET] one or more times to select the ALC
meter.
u While speaking into the microphone at a normal
voice level, confirm the ALC level so that the ALC
meter peak does not past the ALC zone.
• If the ALC meter peak past the ALC zone, re-adjust
the mic. gain.
ALC zone
Adjust [MIC GAIN] so that the ALC
meter reads within the ALC zone.
Note: When the ALC meter peaks above the ALC
zone, your transmited voice may be distorted.
ï VOX operation
The VOX (Voice-operated Transmission) function
toggles between transmit and receive with your
voice. This function provides an opportunity to input
log entries into your computer, etc. while operating.
q Push [VOX] to turn the function ON.
w Select “VOX Gain” in quick set mode.
• Push [SET] for 1 sec. to select quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select
“VOX GAIN”
[VOX] switch
Y
Y
e While speaking into the microphone, adjust [VOX
GAIN] until the transceiver is transmitting.
r Select “VOX Delay” in quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select
“VOX Delay”
t While speaking into the microphone, adjust [VOX
DELAY] as desired.
y Select “ANTI-VOX” in quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select “AN
VOX”
u If the receive audio from the speaker toggles the
transceiver to transmit during receive, adjust the
“ANTI-VOX” to the point where it has no effect.
i Push [SET] to exit the quick set mode.
27
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5
RECEIVE AND TRANSMIT
ï Optional AT-180 AUTOMATIC ANTENNA TUNER operation
The AT-180 automatic antenna tuner matches the
IC-718 to the connected antenna automatically. Once
the tuner matches an antenna, the variable capacitor
angles are memorized as a preset point for each
frequency range (100 kHz steps). Therefore, when you
change the frequency range, the variable capacitors
are automatically preset to the memorized point.
• MANUAL TUNING
During SSB operation on HF bands at low voice
levels, the AT-180 may not be tuned correctly. In such
cases, manual tuning is helpful.
Push and hold [TUNER] for 1 sec. to start manual
tuning.
• CW mode is selected, a side tone is emitted, and “
” blinks; then, the previous mode is selected.
CAUTION: NEVER transmit with the tuner ON
when no antenna is connected. This will be damage
both the transceiver and the antenna tuner.
DO NOT! connect the AT-180 and AH-4 at
the same time. Both turners will not be function
correctly.
Y
Y
TUNER OPERATION
[TUNER]
Push and hold 1 sec. to start manual
tuning.
• Tuner type setting (p.46)
q Push [PWR] for 1 sec. to turn power OFF.
w While pushing and holding [SET], push [PWR] to
turn power ON.
If the tuner cannot reduce the SWR to less than
e Push [UP Y] or [Z DN] one or more times to
select [TUNER].
r Rotate the main dial to select “18”.
• AT-180 AUTOMATIC ANTENNA TUNER is selected.
1.5:1 after 20 sec. of tuning, “
case, check the following:
” goes out. In this
• the antenna connection and feedline
• the antenna SWR (p. 26; meter function)
NOTE: NEVER select “4” (AH-4 AUTOMATIC
ANTENNA TUNER), otherwise the transceiver
transmits automatically when turning the power ON.
Push [TUNER] to cancel unexpected tramsmission.
Then, re-select the tuner type correctly.
• Through inhibit
The AT-180 has a through inhibit condition. When
selecting this condition, the tuner can be used at
poor SWR’s. In this case, automatic tuning in the
HF bands activates only when exceeding SWR 3:1.
Therefore, manual tuning is necessary each time
you change the frequency. Although termed “through
inhibit,” the tuner will be “through” if the SWR is
higher than 3:1 after tuning.
y Push [PWR] for 1 sec. to turn power OFF.
u Push [PWR] to turn power ON again.
• AUTO TUNE:
Push [TUNER] to turn the tuner ON. The antenna is
tuned automatically during transmission when the
antenna SWR is higher than 1.5:1.
CONVENIENT
• Tuner sensitive condition
• When the tuner is OFF, “
” goes out.
If you require critical tuning at any time during
transmission, select the tuner sensitive condition.
See p. 51 for selection.
• Automatic tuner start
If you want to turn OFF the tuner under conditions
of VSWR 1.5:1 or less, use “automatic tuner on” and
turn the tuner OFF. See p. 46 for turning the function
ON and OFF.
Y
Y
[TUNER]
Tuning indicator;
28
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RECEIVE AND TRANSMIT
ï Optional AH-4 AUTOMATIC ANTENNA TUNER operation
The AH-4 matches the IC-718 to a long wire antenna
more than 7 m/23 ft long (3.5 MHz and above).
• See p. 14 for connection.
• See the AH-4 instruction manual for AH-4
installation and antenna connection details.
TUNER OPERATION
Tuning is required for each frequency. Be sure to
re-tune the antenna before transmitting when you
change the frequency–even slightly.
AH-4 setting example:
• Tuner type setting (p.46)
q Push [PWR] for 1 sec. to turn power OFF.
w While pushing and holding [SET], push [PWR] to
turn power ON.
For mobile operation
Optional AH-2b
antenna element
e Push [UP Y] or [Z DN] one or more times to
select [TUNER].
r Rotate the main dial to select “4”.
• AH-4 AUTOMATIC ANTENNA TUNER is selected.
y Push [PWR] for 1 sec. to turn power OFF.
u Push [PWR] to turn power ON again.
For outdoor operation
Long wire
• MANUAL TUNING
q Set the desired frequency in an HF band.
• The IC-718 will not transmit outside of the ham bands,
AH-4
the AH-4 tuner will tune all frequencies 3.5 to 30 MHz.
w Push and hold [TUNER] for 1 sec.
• “
” blinks and “CW” appears while tuning.
R WARNING: HIGH VOLTAGE!
NEVER touch the antenna element while tuning or
transmitting.
Y
Y
NEVER operate the AH-4 without an antenna wire.
The tuner and transceiver will be damaged.
[TUNER]
NEVER operate the AH-4 when it is ungrounded.
e “
” lights constantly when tuning is complete.
Transmitting before tuning may damage the transceiver.
Note that the AH-4 cannot tune when using a 1⁄2 λ long
wire or multiple of the operating frequency.
• When the connected wire cannot be tuned, the “
”
goes out, the AH-4 is bypassed and the antenna wire
is connected to the antenna connector on the
transceiver directly.
r To bypass the AH-4 manually, push [TUNER].
Tuning indicator;
Blinks: Tuning now
Appears: Tune is completed
Disappears: Tune is not completed
CONVENIENT
• PTT tune function
The AH-4 is always tuned when the PTT is pushed
after the frequency is changed (more than 1%).
This function removes the “push and hold [TUNER]”
operation and activates first transmission on the new
frequency. This function is turned ON in initial set
mode (p. 46).
29
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5
RECEIVE AND TRANSMIT
n Split frequency operation
Split frequency operation allows you to transmit and
receive on two different frequencies. Split frequency
operation uses two frequencies, one in VFO A and
the other in VFO B.
push [A/B].
Following is an example of setting 7.057 MHz, CW
mode in VFO A (for receive) and 7.025 MHz, CW
mode in VFO B (for transmit).
q Select VFO B and set the frequency to 7.025
MHz/ CW.
w Push [A/B] to select VFO A and set the frequency
to 7.057 MHz/CW.
e Push [SPL] to turn the split frequency operation
ON.
• Split operation is now set for receive 7.057 MHz/CW
and transmit 7.025 MHz/CW.
• To change the receive frequency, rotate the main dial,
to change the transmit frequency, rotate the main dial
during transmit mode.
To exchange the transmit and receive frequencies,
n SWR
The IC-718 has a built-in circuit of measuring antenna
SWR—no external equipment or special adjustments
are necessary.
ï Measuring SWR
q Confirm that the output power is over 30 W.
w Push [SET] one or more times to select the SWR
meter.
e Push [MODE] one or more times to select CW or
RTTY operation.
• Key down or push [PTT] to transmit; then read
the actual SWR from the meter:
≤ 1.5 well matched antenna
≥ 1.5 check antenna or cable connection, etc.
The best match is in this range.
30
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5
RECEIVE AND TRANSMIT
n Function for CW
ï Connection for CW
Initial set mode setting (p. 45)
9
5
1
1
0
1
1
1
2
6
2
7
3
8
4
: normal
[ELEC KEY]
For no break-in operation:
Paddle
Connect an external switch such as
a foot switch; or use the RTTY
SEND terminal for all bands.
[ACC]
: reverse
13
10 11 12
9
5
1
(See p. 33)
6
2
7
3
8
4
: off
Straight key
See p. 32 for connection details:
Paddle operation from front panel
MIC connector.
: UP/DN key
Microphone
[MICROPHONE]
ï CW operation
q Connect a paddle or straight key as above.
w Select CW (or CW-REV) mode with [MODE].
e Set CW break-in operation as semi break-in, full
break-in or OFF. (See p. 42)
CW mode and semi
break-in operation
is selected.
• Push [SET] for 1 sec. to enter quick set mode.
• Push [∫ UP]/[√ DN] one or more times until “BK–IN”
appears, then rotate the main dial to select the desired
condition:
FL: full break-in
SE: semi break-in
oF: no break-in
Delay time of 6 dots
is selected in quick
set mode for semi
break-in operation.
r Set the CW delay time when semi break-in
operation is selected. (See p. 43)
• Push [SET] for 1 sec. to enter quick set mode; push
[∫ UP]/[√ DN] one or more times until “BK–DELAY”
appears, then rotate the main dial to set the desired
delay time.
31
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5
RECEIVE AND TRANSMIT
ï CW pitch control
The received CW audio pitch and monitored CW
audio pitch can be adjusted to suit your preferences
(300 to 900 Hz) with out changing the operating
frequency.
This shows the
default setting for
the CW pitch control
(600 Hz).
q Push [SET] for 1 sec. to enter quick set mode.
w Push [∫ UP]/[√ DN] one or more times until “CW
PITCH” appears, then rotate the main dial to set
the desired pitch.
ï CW reverse mode
1/3 octave
1/2 octave
BFO
The CW-R (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.
Push for 1 sec.
BFO
MODE
q Push [MODE] one or more times to select CW
mode.
w Push [MODE] for 1 sec. to toggle between CW
and CW-R modes.
Desired signal Interference
Desired signal Interference
(600 Hz)
(800 Hz)
(600 Hz)
(400 Hz)
CW mode (USB side)
CW REV mode (LSB side)
ï Electronic CW keyer
The IC-718 has an electronic keyer. Both keying
speed and weight (the ratio of dot : space : dash)
can be set in quick set mode.
KEYING WEIGHT EXAMPLE: morse code “K”
DOT
DASH
DASH
(Fixed*)
• Setting the electronic keyer
q Push [MODE] one or more times to select CW
Weight setting:
1:1:3 (default)
mode.
w While pushing and holding [SET], push [POWER]
to enter initial set mode.
Weight setting:
Adjusted
e Push [∫ UP]/[√ DN] one or more times until “CW
PADDL” appears, then rotate the main dial to
select the paddle type.
Adjustable range
SPACE (Fixed*)
• When “ud” is selected, the up/down switches on the
microphone can be use as a paddle.
• When using up/down switches as a paddle, squeeze
*SPACE and DOT length can be adjusted with “KEY SPD”
in the quick set mode only.
keying function is not available.
r Push [∫ UP]/[√ DN] one or more times until “KEY
RAT” appears, then rotate the main dial to select
the desired weight.
Paddle operation
front panel
MIC connector
• Key weight can be select from 2.8 to 4.5.
t Push [∫ UP]/[√ DN] one or more times until “KEY
SPD” appears, then rotate the main dial to select
the desired weight.
DOT
E
y
3.9 kΩ ±5%
2.2 kΩ ±5%
CW
paddle
MIC U/D
e
• Key weight can be select from 6 to 60.
DASH
Paddle operation from front panel MIC connector
Connect a CW paddle as at right to operate an
electronic 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,”or “oF” in CW PADDL in
initial set mode.
• Connect straight key to “DOT” side.
32
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5
RECEIVE AND TRANSMIT
n Function for RTTY
ï Connection for RTTY(FSK)
Rear panel
TU or TNC
Personal computer
2-conductor 1/8˝ plug
AF
GND
Use either the ACC or one of the two 1/8˝ plugs.
Rear panel
view
SQL*1
AF out
SEND
GND
13
9 10 11 12
5
1
6
2
7
3
8
4
*
1Connect SQL line when required.
FSKK
ï Connection for AFSK
[MIC] connector
(Front panel view)
q Mic input
i AF output
u Mic GND
y PTT GND
t PTT
r SQL
To a TU or TNC
and personal computer.
1
3
7
5
2
8
4
6
Use either the ACC or microphone connector.
[ACC] connector
Rear panel
view
SQL*1
13
9 10 11 12
AF out
AF in
5
1
6
2
7
3
8
4
*
1Connect SQL line when required.
SEND
GND
33
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RECEIVE AND TRANSMIT
ï RTTY (FSK) operation
q Connect a terminal unit as at p. 34.
w Select RTTY (or RTTY-R) mode with [MODE].
e Select the desired FSK tone and shift frequencies
as below.
RTTY mode
is selected.
r Set the desired frequency with the main dial.
t Operate the connected PC or TNC (TU).
PRESETTING FOR RTTY
• Tone frequency
RTTY mark frequency
is set to 2125 Hz.
2125, 1615 and 1275
Hz are available.
q Push [SET] for 1 sec. to enter quick set mode.
w Push [∫ UP]/[√ DN] one or more times until
“TON 2125” appears, then rotate the main dial to
select the desired tone frequency.
• Sift frequency
q Push [SET] for 1 sec. to enter quick set mode.
w Push [∫ UP]/[√ DN] one or more times until
“SIFT 170” appears, then rotate the main dial to
select the desired tone frequency.
RTTY sift frequency is
set to 850 Hz.
850, 425, 200 and
170 Hz are available.
• RTTY reverse mode
Received characters are occasionally garbled when
the receive signal is reversed between MARK and
SPACE. This reversal can be caused by incorrect
TNC connections, settings, commands, etc.
Normal
mark
Reverse
mark
space
space
2125
Hz
2125
Hz
170
Hz
170
Hz
To receive a reversed RTTY signal correctly, select
RTTY-R (RTTY reverse) mode.
• Push [MODE] for 1 sec. to select RTTY-R (RTTY
reverse) mode.
BFO
BFO
displayed freq.
displayed freq.
ï RTTY (AFSK) operation
q Connect a terminal unit as p. 33.
w Select SSB (LSB) mode with [MODE].
• Generally, LSB is used on the HF bands.
e Select the desired FSK tone/shift frequencies and
keying polarity the same way as FSK operation.
r Set the desired frequency with the main dial.
t Operate the connected PC or TNC (TU).
34
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MEMORY OPERATION
6
n Memory channels
The transceiver has 101 memory channels. The
memory mode is very useful for quickly changing to
often-used frequencies.
All 101 memory channels are tuneable which means
the programmed frequency can be tuned temporarily
with the tuning dial, etc. in memory mode.
MEMORY
MEMORY
TRANSFER
TO VFO
OVER-
WRITING
CHANNEL
NUMBER
CAPABILITY
CLEAR
Yes
CHANNEL
Regular memory
channels
One frequency and one mode in
each memory channel.
1–99
Yes
Yes
Yes
Yes
Scan edge
memory
channels
One frequency and one mode in
each memory channel as scan
edges for programmed scan.
P1, P2
No
n Memory channel selection
D Using the [UP Y] or [Z DN] keys
D Using the keypad
q Push [V/M] to select memory mode.
• “MEMO” appears.
q Push [V/M] to select memory mode.
• “MEMO” appears.
w Push [CH] to enter memory CH select mode.
• “MEMO” blinks.
w Push [CH] to enter memory CH select mode.
• “MEMO” blinks.
e Push [UP Y] or [Z DN] several times to select the
desired memory channel.
e Push [F-INP/ENT], then push the desired memory
channel number using the keypad.
r Push [F-INP/ENT] to select the desired memory
channel.
• Push and hold [UP Y] or [Z DN] for continuous
selection.
r Push [CH] to exit memory CH select mode.
t To return to VFO mode, push [V/M] again.
t Push [CH] to exit memory CH select mode.
V/M
1
V/M
1
CH
CH
F-INP
ENT
DN
UP
Z
Y
or
A=B
V/M
1
2
F-INP
ENT
CH
CH
35
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6
MEMORY OPERATION
n Memory channel programming
Memory channel programming can be performed
either in VFO mode or in memory mode.
[EXAMPLE]: Programming 7.086 MHz/LSB into
D Programming in VFO mode
memory channel 10.
q Set the desired frequency and operating mode in
VFO mode.
w Push [CH], then push [UP Y] or [Z DN] several
times to select the desired memory channel.
• “MEMO” blinks.
• “BLANK” appears if the selected memory channel is a
blank channel.
or keypad
MODE
e Push [MW] for 1 sec. to program the displayed
frequency and operating mode into the memory
channel.
CH
r Push [CH] to exit memory channel select mode.
Z
DN
UP
Y
or
Push for 1 sec.
MW
4
Beep
Beep
Beep
CH
[EXAMPLE]: Programming 21.280 MHz/CW into
D Programming in memory mode
memory channel 18.
q Select the desired memory channel with [UP Y]
or [Z DN] in memory mode.
• “BLANK” appears if the selected memory channel is a
blank channel (and does not have contents).
w Set the desired frequency and operating mode in
memory mode.
V/M
1
• To program a blank channel, use direct frequency
entry with the keypad in advance.
e Push [MW] for 1 sec. to program the displayed
frequency and operating mode into the memory
channel.
Z
DN
UP
CH
Y
or
• Preamp setting, attenuator on/off,and AGC setting
can also be programmed into a memory channel.
CH
then
F-INP
ENT
F-INP
ENT
[2], [1], [.], [2], [8]
Push for 1 sec.
MW
4
Beep
Beep
Beep
36
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6
MEMORY OPERATION
n Frequency transferring
The frequency and operating mode in a memory
channel can be transferred to the VFO.
Frequency transferring can be performed in either
VFO mode or memory mode.
TRANSFERRING EXAMPLE IN VFO MODE
D Transferring in VFO mode
This is useful for transferring programmed contents
to VFO.
Operating frequency
: 21.320 MHz/USB (VFO)
Contents of M-ch 12
: 14.180 MHz/CW
q Select VFO mode with [V/M].
w Push [CH], then select the memory channel to be
transferred with [UP Y] or [Z DN].
• “BLANK” appears if the selected memory channel is a
blank channel.
CH
e Push [M≈V] for 1 sec. to transfer the frequency
and operating mode.
• Transferred frequency and operating mode appear on
the frequency readout.
r Push [CH] to exit memory channel select mode.
Y
Z
UP
DN
or
Push for 1 sec.
M
V
6
Beep
Beep
Beep
CH
37
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6
MEMORY OPERATION
TRANSFERRING EXAMPLE IN MEMORY MODE
D Transferring in memory mode
This is useful for transferring frequency and
operating mode while operating in memory mode.
Operating frequency
: 14.020 MHz/CW (M-ch 16)
Contents of M-ch 16
: 14.018 MHz/CW
When you have changed the frequency or
operating mode in the selected memory channel:
• Displayed frequency and mode are transferred.
• Programmed frequency and mode in the
memory channel are not transferred, and they
remain in the memory channel.
Rotate dial.
q Push [CH], then select the memory channel to
be transferred with [UP Y] or [Z DN] in memory
mode.
• And, set the frequency or operating mode if required.
w Push [M≈V] for 1 sec. to transfer the frequency
and operating mode.
Push for 1 sec.
M
V
6
Beep
Beep
Beep
• Displayed frequency and operating mode are
transferred to the VFO.
V/M
1
e To return to VFO mode, push [V/M] momentarily.
VFO A is displayed.
V/M
1
M-ch 16 is displayed.
n Memory clearing
Any unnecessary memory channels can be cleared.
The cleared memory channels become blank
channels.
q Select memory mode with [V/M].
w Push [CH], then select the memory channel to be
cleared with [UP Y] or [Z DN].
e Push [M-CL] for 1 sec. to clear the contents.
• The programmed frequency and operating mode
disappear.
Push for 1 sec.
M-CL
5
Beep
Beep
Beep
• “BLANK” appears.
r To clear other memory channels, repeat steps w
and e.
38
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SCANS
7
n Scan types
PROGRAMMED SCAN
MEMORY SCAN
Repeatedly scans between two scan edge frequencies
(scan edge memory channels P1 and P2).
Repeatedly scans all programmed memory channels.
BLANK
Scan edge
P1 or P2
Scan edge
P2 or P1
Mch 2
Mch 3
Mch 4
Mch 6
Mch 1
Mch 5
Scan
Jump
BLANK
Mch 7
Mch 99
This scan operates in VFO mode.
This scan operates in memory mode.
nꢀPreparation
• Squelch condition
• Channels
For programmed scan/auto memory write scan:
Program scan edge frequencies into scan edge
memory channels P1 and P2.
Scan
start
with
Programmed scan
Memory scan
For memory scan:‑
Program 2 or more memory channels except scan
edge memory channels.
The scan continues Scan pauses on
until it is stopped man- each channel when
ually, and does not the scan resume is
pause even if it detects ON; not applicable
Squelch
open
signals.
when OFF.
• Scan resume ON/OFF
You can select the scan to resume or cancel when
detecting a signal, in set mode. Scan resume ON/OFF
must be set before operating a scan. See p. 45 for
ON/OFF setting and scan resume condition details.
Scan stops when detecting a signal.
Squelch
open
closed
If you set scan resume ON in Initial set mode,
the scan pauses for 10 sec. when detecting a
signal, then resumes. When a signal disap-
pears while scan is paused, scan resumes 2
sec. later.
• Scan speed
Scan speed can be selected from 2 levels, high or
low, in Initial set mode. See p. 45 for details.
39
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7
SCANS
n Programmed scan operation
q Select VFO mode with [V/M].
w Select the desired operating mode.
• The operating mode can also be changed while
scanning.
e Set [RF/SQL] open or closed.
• See previous page for scan condition.
• If the [RF/SQL] control function is set as RF control,
the squelch always opens. See pgs. 15, 20 for details.
r Push [SCAN] to start the programmed scan.
• “SCAN” appears while scanning.
t When the scan detects a signal, the scan stops,
pauses or ignores it depending on the resume
setting and the squelch condition.
y To cancel the scan, push [SCAN].
If the same frequencies are programmed into the
scan edge memory channel P1 and P2,
programmed scan does not start.
n Memory scan operation
q Select memory mode with [V/M].
w Select the desired operating mode.
• The operating mode can also be changed while
scanning.
e Set [RF/SQL] open or closed.
• See previous page for scan condition.
• If the [RF/SQL] control function is set as RF control,
the squelch always opens. See pgs. 14, 30 for details.
r Push [SCAN] to start the memory scan.
• “SCAN” appears while scanning.
t When the scan detects a signal, the scan stops,
pauses or ignores it depending on the resume
setting and the squelch condition.
y To cancel the scan, push [SCAN].
2 or more memory channels must be programmed
for memory scan to start.
40
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SET MODE
8
n General
[DIAL]
Set mode is used for programming infrequently
changed values or conditions of functions. The IC-718
has 2 separate set modes: quick set mode and initial
set mode.
[SET]
D Quick set mode operation
q While power is ON, push [SET] for 1 sec.
[] [Y]
•
Quick set mode is selected and one of its items appears.
[DISPLAY EXAMPLE: QUICK SET MODE]
w Push [UP Y] or [Z DN] to select the desired item.
e Rotate the main dial to set the values or conditions
for the selected item.
Item
r Repeat w and e to set other items.
t To exit quick set mode, push [SET] momentarily.
Value of
Condition
D Initial set mode operation
q Push [POWER] for 1 sec. to turn power OFF.
w While pushing and holding [SET], push [POWER]
to turn power ON.
[DIAL]
• Initial set mode is selected and one of its items appears.
e Push [UP Y] or [Z DN] to select the desired item.
r Rotate the main dial to set the values or conditions
for the selected item.
[SET]
[PWR]
t Repeat e and r to set other items.
y To exit initial set mode, push [PWR] for 1 sec. to
turn power OFF.
[Z] [Y]
u Push [PWR] to turn power ON again.
• The conditions selection in intial set mode are now
effective.
[DISPLAY EXAMPLE: INITIAL SET MODE]
Item
Value of
Condition
41
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8
SET MODE
n Quick set mode items
• RF power
This item adjusts the RF output power. The RF output
power can be adjusted from L, 1 to 99 and H for indication,
however, it can be adjusted continuously.
•The default is H (maximum power).
Note that while adjusting the output power, the power
meter is displayed automatically.
• Mic gain
This item adjusts microphone gain from 0 to 99 and H for
indication, however, it can be adjusted continuously.
The default is 50.
• VOX gain
This item adjusts the VOX gain for the VOX (voice
activated transmit) function.
The default is 50.
• VOX delay
This item adjusts VOX (voice activated transmit) delay
time. The delay time can be adjusted from 0 to 2 sec. in
0.1 sec. units.
The default is 10 (1.0 sec).
• Anti VOX level
This item adjusts the ANTI-VOX gain for the VOX (voice
activated transmit).
The default is 50.
• CW pitch
This item adjusts CW pitch. CW pitch is adjustable from
300 Hz to 900 Hz in 10 Hz steps.
The default is 60 (600 Hz).
• BK-IN
This item selects break-in type for CW operation. There
are three selectable values:
oF : No break-in operation available (default).
SE : Semi break-in operation available.
FL : Full break-in operation available.
42
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8
SET MODE
• 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 (dots).
The default is 7.
• Key speed
This item adjusts the CW key speed. The key speed can
be selected from 6 to 60* wpm.
The default is 20 wpm.
* 40, 44, 47, 50, 52, 54, 56, 57, 59 can not be selected.
• Key ratio
This item sets the CW key ratio (or weight). The ratio can
be selected from 2.8 to 4.5.
The default is 30 (3.0).
• RTTY mark tone
This item selects RTTY tone. There are 3 selectable
values: 1275, 1615 and 2125 Hz.
The default is 2125 Hz.
• RTTY shift
This item adjusts RTTY shift. There are 4 selectable
values: 170, 200, 425 and 850.
The default is 170 Hz.
• Dimmer
This item selects LCD back light brightness. There are 3
selectable values: Off, Low and High.
The default is HI (High).
43
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8
SET MODE
n Initial set mode items
• Mode select
This item is available in all modes, and allows you to
simplify operation by inhibiting the selection of unneeded
operating modes during normal operation. For example if
you are operating mobile and only plan on using LSB and
USB modes, use “MODE SELECTION” to inhibit access
to all other modes (CW, RTTY and AM), thereby making
selection of LSB and USB quick and easy.
The default is on for all operating modes. To toggle an
operating mode on or off, push [MODE] one or more times
until the desired mode is displayed. Then rotate the main
dial to set on or off.
• RF/SQL VR
The [RF/SQL] control can be set as the RF/squelch control
or automatic (acts as squelch in AM modes; as RF in SSB/
CW/RTTY modes) or the squelch control. (See p. 20)
The default is rS (RF/squelch).
• Beep
A beep sounds each time a switch is pushed to confirm it.
This function can be turned OFF for silent operation.
The default is on.
• Beep level
This item adjusts the confirmation beep level.
The default is 50.
• Band edge beep
A beep sounds when an operating frequency enters
or exits a transmit frequency range. This functions
independent of the confirmation beep setting.
The default is on.
• Side-tone level
This item adjusts the CW side-tone level.
The default is 30.
44
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8
SET MODE
• Meter peak hold
This item selects meter peak hold function on or off.
The default is on.
• Scan speed
This item sets the rate at which channels or frequencies
are scanned during scan operations. High or Low can be
selected.
The default is HI (High).
• Scan resume
This item sets the scan resume function ON or OFF.
ON: scan resumes 10 sec. after stopping on a signal
(or 2 sec. after a signal disappears); OFF: scan soes
not resume after stopping on a signal. For the priority
watch, setting to OFF pauses the watch until the signal
disappears and scan resumes.
The default is on.
• AM Noise blanker
When this item is set to ON, the noise blanker
function is available on AM mode. This is useful when
communicating in AM mode (the noise blanker function
should not be used when listening to regular AM
broadcasts as it may degrade the receive audio).
The default is on.
• Auto TS
This item sets auto tuning speed. The tuning dial normally
changes the frequency 2.5 KHz/revolution in 10 Hz tuning
step. When auto tuning step is turned on this increases
to 50 KHz/revolution in 50 Hz tuning step during quick
rotation of the dial.
The default is on.
• Key type
This item adjusts the CW paddle type. Four selections are
available.
• n : normal (for electronic keyer use)
• r : reverse (for electronic keyer use)
• oF: Turns OFF the electronic keyer (for straight key use)
• ud : For using the microphone’s [UP]/[DN] keys insted
of the paddle.
The default is n (normal).
45
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8
SET MODE
• Tuner type
This item selects optional antenna tuner type.Three
selections are available.
• no : No optional tuner connected.
• 4 : The optional AH-4 antenna tuner is connected.
• 18 : The optional AT-180 antenna tuner is connected
The default is no.
• Auto tune
The optional AT-180 ANTENNA TUNER has an automatic
start capability which starts tuning if the SWR is higher
than 1.5—3.
When “off” is selected, the tuner remains OFF even
when the SWR is poor (1.5—3). When “on” is selected,
automatic tune starts even when the tuner is turned OFF.
The default is oF (OFF).
• PTT tune
When an optional AH-4 or AT-180 AUTOMATIC ANTENNA
TUNER is connected, tuning can be started automatically at
the moment the PTT is pushed.
The default is oF (OFF).
• Speech language
When an optional UT-102 VOICE SYNTHESIZER UNIT is
installed, you can select between English and Japanese
as the language.
The default is En (English).
• Speech speed
When an optional UT-102 VOICE SYNTHESIZER UNIT is
installed, you can select faster or slower synthesizer output.
The default is HI (High).
• Speech S-meter level
When an optional UT-102 is installed, the synthesizer can
be set to read the frequency/mode only (OFF), or both the
frequency/mode and S-meter level (ON).
The default is on.
• CI-V baud rate
This item sets the data transfer rate. When “Auto” is
selected, the baud rate is automatically set according to
the connected controller or remote controller.
The default is At (Auto).
46
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8
SET MODE
• CI-V address
To distinguish equipment, each CI-V transceiver has its
own Icom standard address in hexadecimal code. The
IC-718’s address is 5E.
When 2 or more IC-718s are connected to an optional
CT-17 CI-V LEVEL CONVERTER, rotate the main dial to select
a different address for each IC-718 in the range 01H to 7FH.
The default is 5E.
• CI-V Transceive
Transceive operation is possible with the IC-718
connected to other Icom HF transceivers or receivers.
When “on”is selected, changing the frequency, operating
mode, etc. on the IC-718 automatically changes those of
connected transceivers (or receivers) and vice versa.
The default is on.
• CI-V 731 mode
When connecting the IC-718 to the IC-735 for transceive
operation, you must change the operating frequency data
to 4 bytes.
• This item MUST be set to “on” when operating transceiver with
the IC-735.
The default is oF (off).
• OPTION Filter
When an optional IF filer is installed, this selection is
necessary, otherwise the filters cannot be selected.
Selections available are FL-96, FL-222, FL-52A, FL-53A,
FL-257 and none (default). See p. 24 for usable filters for
each mode and see P. 50 for filter installation.
• Expand Filter
When an optional IF filter is installed, this selection
expands filter and filter selection (W/N) key combination
on operating mode independently.
The default is oF (off).
• Filter select (Wide/Narrow)
When an optional IF filter is installed, you can arrange the
filter and filter selection key combination. (p. 25)
47
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INSTALLATION AND CONNECTIONS
9
n Opening the transceiver’s
case
Follow the case and cover opening procedures
shown here when you want to install an optional unit
or adjust an internal unit, etc.
CAUTION: DISCONNECT the DC power cable
from the IC-718 before performing any work on the
transceiver. Otherwise, there is danger of electric
shock and/or equipment damage.
q Remove the 5 screws from the top of the
transceiver and 4 screws from the sides, then lift
up the top cover.
w Remove the 5 screws from the bottom of the
transceiver, then remove the bottom cover.
n Optional bracket and carrying handle
D Mounting bracket
An optional IC-MB5 MOBILE MOUNTING BRACKET is
available to install the radio under a table, on a wall,
in a vehicle, etc.
Select an area to mount the receiver keeping in mind
that the weight of the transceiver is approx. 3.80kg.
D Carrying handle
An optional handle allows you to easily carry and
transport the transceiver.
Attach the MB-23 CARRYING HANDLE with the
supplied rubber feet as shown.
48
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9
INSTALLATION AND CONNECTIONS
n CR-338 high stability crystal unit
By installing the CR-338, the total frequency stability
of the receiver will be improved.
r Remove the supplied internal crystal and replace
with the CR-338.
t Return the PLL unit, plugs and flat cables to their
original positions.
y Adjust the reference frequency at C16 using a
frequency counter if desired.
q Remove the bottom cover as shown in the
diagram before.
w Disconnect W2 from J4401 (MAIN unit) and W3
from J4201 (MAIN unit).
• Connect the frequency counter to P. 2 (PLL unit).
e Remove 9 screws from the PLL unit, disconnect
P4 from J201 (MAIN unit) and P2 from J401
(MAIN unit), then remove the PLL unit.
u Return the bottom cover to its original position.
Internal crystal
CR-338
W 2
W 3
J 4201
J 4401
PLL unit
P 4
PLL unit
J 201
Solder 4 leads
C 16
MAIN unit
J 401
P 2; Frequency check point
(Connect a frequency counter
and adjust the frequency to
64.00000 MHz with C 16.)
n UT-102 voice synthesizer unit
The UT-102 announces the received frequency, mode,
S-meter level and current time in a clear, electronically-
generated voice, in English (or Japanese).
Push [LOCK] for 1 sec. to announce the frequency,
etc.
q Remove the bottom cover as shown above.
w
Remove the protective paper attached to the
bottom of the UT-102 to expose the adhesive strip.
e Plug UT-102 into J2501 on the MAIN unit as
shown at right.
r Return the bottom cover to its original position.
49
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9
INSTALLATION AND CONNECTIONS
n UT-106 DsP receive unit
The UT-106 provides AF DSP functions such as
noise reduction and auto notch.
Turn the unit over
flat cable
q Remove the bottom cover.
w Slide the insulating case onto the UT-106 as
shown right. (Fig. 1)
P 2601
UT-106
e Remove the connection cable (P2601) from
J2602 on the MAIN unit. Connect the cable into
J1 on the UT-106.
P 1 (from UT-106)
r Plug the connection cable (P1) from the UT-106
to J2602 on the MAIN unit.
t Plug the flat cable into J3 on the UT-106 and to
J2603 on the MAIN unit.
• Take care regarding the conductor direction.
y Turn the UT-106 unit over. (Fig. 2)
• No need to fix with an adhesive strip, etc.
J 2602
MAIN unit
insulating case
J 2603
Fig. 1
• Turn the unit over
u Put the UT-106 on the MAIN unit.
insulating case
• No need to fix with an adhesive strip, etc.
Rear panel
• Ensure that the surplus cable from UT-106 is stored
�
UT-106
under the unit.
i Return the bottom cover to its original position.
UT-106
J 2602
Flat cable*
Surplus cable
J 2603
J 2602
Main unit
* Supplied with UT-106
Fig. 2
n Optional IF filters
Several IF filters are available for the IC-718. You can
install 1 filter for 455 kHz IF. Choose the appropriate
filter for your operating needs. (pgs, 24−25)
t Solder the 4 leads.
y Return the MAIN unit and bottom cover to their
original positions.
After filter installation, specify the installed filter
using initial set mode. (p. 47) Otherwise, the
installed filter will not function properly.
D Installation
q Remove the bottom cover as shown on the p. 48.
w
Remove 7 screws, connection cable p1 from J1,
p5 from J701, W4 from J4101 and W5 from J4001
and 2 Tr-clampers as shown in the diagram below.
Optional IF filter
e Install the desired 455 KHz filter as shown in the
diagram below.
r
Mounting the filter with supplied washers and nuts.
P 5
P 1
J 1
W 4
Tr-clamper
J 4101
Solder 4 leads
J 701
W 5
MAIN unit
Tr-clamper
50
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9
INSTALLATION AND CONNECTIONS
� AT-180 internal switch description
The optional AT-180 has 3 operating conditions for
HF band operation. Select a suitable condition
according to your antenna system.
qRemove the top cover of the AT-180.
wSet the tuner switches to the desired positions
according to the table below.
SW Position
Operation
•AT-180 inside top cover
The tuner operating condition is set by S2
described below.
A
(default)
THROUGH INHIBIT
The tuner tunes the antenna even when
the antenna has poor SWR (up to VSWR
3:1 after tuning). In this case, manual tun-
ing is necessary each time you change the
frequency although the tuner automatically
starts tuning when the VSWR is higher
than 3:1. This setting is called “through
inhibit,” however, the tuner is set to
“through” if the VSWR is higher than 3:1
after tuning.
S2
S1
D C B A
B
C
TUNER SENSITIVE CONDITION
The tuner tunes each time you transmit
(except SSB mode). Therefore, the lowest
SWR is obtained at any given time.
For SSB mode, the same condition is as
the “D” position below.
NORMAL CONDITION
The tuner tunes when the SWR is higher
than 1.5:1. Therefore, the tuner activates
only when tuning is necessary.
D
(default)
•Connector information for ACC(2) socket
•Speci cations for the AT-180
•Frequency coverage : 1.9–54 MHz
2
5
4
•Input impedance
•Maximum input
power
: 50 Ω
: 120 W
3
1
ACC 2
6
7
•Minimum tuning
power
: 8 W
•Matching impedance : 16.7–150 Ω (HF band)
PIN NO./
NAME
DESCRIPTION
range
20–125 Ω (50 MHz band)
: Less than SWR 1.5:1
: Less than 1.0 dB
•Tuning accuracy
•Insertion loss
Regulated 8 V output.
(10 mA max.)
q8 V
(after tuning)
: 13.8 V DC/1 A (supplied from
the transceiver’s ACC socket)
wGND
Connects to ground.
•Power supply
requirements
Input/output pin.
Goes to ground when transmitting (20 mA
max). When grounded, transmits.
eSEND
rBAND
•Dimensions (mm/in) : 167(W)×58.6(H)×225(D)
69⁄16(W)×25⁄17(H)×87⁄8(D)
Band voltage output.
(Varies with amateur band; 0 to 8.0 V).
•Weight
•Supplied accessories: coaxial cable (1 m)
ACC cable (DIN 13 pins)
: 2.4 kg; 5 lb 4 oz
,
tALC
yNC
ALC output voltage (–4 to 0 V).
No connection.
u13.8V
13.8 V output when power is ON (1 A max).
51
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MAINTENANCE
10
n Troubleshooting
The following chart is designed to help you correct
problems which are equipment malfunctions.
If you are not able to locate the cause of a problem
or solve it through the use of this chart, contact your
nearest Icom Dealer or Service Center.
PROBLEM
POSSIBLE CAUSE
SOLUTION
REF.
Power does not come on • DC power cable is improperly connected.
when the [POWER] switch • Fuse is blown.
• Reconnect the DC power cable correctly.
• Check for the cause, then replace the fuse p. 53
with a spare one.
p. 12
is pused.
• Power supply not turned ON.
(Fuses are installed in the DC power cable
and the internal PA unit.)
No sounds comes from • Volume level is too low.
the speaker.
• Rotate [AF] clockwise to obtain a sutable lis- p. 2
tening level.
• The squelch is closed.
• Rotate [RF/SQL] to 10 o’clock position to open p. 2
the squelch.
•
The transceiver is in the transmitting condition.
•
Check the SEND line of an external unit, if de- p. 6
sired.
Sensitivity is low.
• The antenns is not connected properly.
• Reconnect to the antenna connector.
—
• The antenna is for another band is connected. • Connect an antenna suitable for the operating —
frequency.
• The antenna is not properly tuned.
• Push [TUNER] for 2 sec. to manually tune the p. 3
antenna.
• The attenuator is activated.
• Push [ATT] to select “ATT” OFF.
p. 3
Receive audio is distorted. • The operating mode is not selected correctly. • Select a suitable operating mode.
p. 20
p. 21
p. 21
p. 22
• IF SHIFT function is activated.
• Noise blanker function is activated.
• Preamp is activated.
• Rotate the SHIFT control to center position.
• Push [NB] to turn the function OFF.
• Push [P.AMP] to turn the function OFF.
• The noise reduction is activated and the [NR] • Set the [NR] control for maximum readability.
control is set too high.
p. 23
p. 17
Transmitting is impossible. • The operating frequency is not set to a ham • Set the frequency to a ham band.
band.
Output power is too low.
• [RF POWER] is set too low.
• [MIC GAIN] is set too low.
• Set [RF POWER] to a suitable position.
• Set [MIC GAIN] to a suitable position.
p. 42
p. 42
• The antenna for another band is selected.
• Select an antenna suitable for the operating p. 10
frequency.
• The antenna is not properly tuned.
• Push [TUNE] for 2 sec. to manually tune the p. 3
antenna.
No contact possible with • RIT function is activated.
• Push [RIT] to turn the function OFF.
• Push [SPLIT] to turn the function OFF.
p. 21
pgs. 7,
31, 32
another station.
• Split frequency function is activated.
Transmitted signals are • [MIC GAIN] too high.
• Set [MIC GAIN] to a suitable position.
• Turn [COMP] OFF.
p. 2
p. 27
distorted.
• [COMP] function is activated.
Programmed scan does • Squelch is open.
• Set [RF/SQL] to the threshold point.
p. 3
not stop.
• [RF/SQL] is assigned to RF gain control and • Reset [RF/SQL] control assigned and set it to p. 30
squelch is open.
the threshold point.
Programmed scan does • The same frequencies have been programmed
not start. in scan edge memory channels P1 and P2.
•
Program different frequencies in scan edge p. 40
memory channels P1 and P2.
Memory scan does not • 2 or more memory channels have not been • Program 2 or more memory channels.
start. programmed.
p. 40
The displayed frequency • The dial lock function is activated.
does not change prooerly. • A quick set mode screen is selected.
• The internal CPU has mulfunctioned.
• Push [LOCK] to deactivate the function.
• Push [SET] to exit the quick set mode.
• Reset the CPU.
p. 6
p. 41
p. 53
52
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MAINTENANCE 10
DC POWER CABLE FUSE REPLACEMENT
n Fuse replacement
If a fuse blows or the transceiver stops functioning,
try to find the source of the problem, and replace the
damaged fuse with a new, rated fuse.
20 A
fuse
CAUTION:-DISCONNECT the DC power cable
from the transceiver when changing a fuse.
The IC-718 has 2 types of fuses installed for
transceiver protection.
• DC power cable fuses �������� FGB 20 A
• Circuitry fuse ������������ FGB 4 A
CIRCUITRY FUSE REPLACEMENT
The 13.8 V DC from the DC power cable is applied
to all units in the IC-718 through the circuitry fuse.
This fuse is installed in the MAIN unit.
FGB 4 A
PA unit
q Remove the top cover as shown on p. 48
w Replace the circuitry fuse as shown in the
diagram at right.
e Replace the top cover.
When first applying power or when the function
seems to be displaying erroneous information, reset
the CPU as follows:
n Resetting the CPU
q Make sure transceiver power is OFF.
w While pushing [UP Y] and [Z DN], push [PWR] to
turn power ON.
• The internal CPU is reset.
• The transceiver displays its initial VFO frequencies
when resetting is complete.
[Z] [Y]
[PWR]
Resetting CLEARS all programmed contents in
memory channels and returns programmed values
in set mode to their defaults.
53
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SPECIFICATIONS
11
D General
• Spurious emissions : Less than –50 dB below
peak output power
*Spurious freq.; Below 30 MHz: –50 dB
Above 50 MHz: –60 dB
• Frequency coverage : Receive
0.03–29.999999 MHz*1
Transmit
1.800– 1.999999 MHz*2
3.500– 3.999999 MHz*2
7.000– 7.300000 MHz
10.100–10.150000 MH
14.000–14.350000 MHz
18.068–18.168000 MHz
21.000–21.450000 MHz
24.890–24.990000 MHz
28.000–29.700000 MHz
NOTE: Limit in dB decreases linearly with thw logarithm of
frequency in the range 30 MHz to 50 MHz.
• Carrier suppression : More than 40 dB
• Unwanted sideband : More than 50 dB
• Microphone connector: 8-pin connector (600 Ω)
• Key connector
: 3-conductor 6.5 (d) mm (1⁄4˝)
*1Guaranteed range: 0.5–29.999999 MHz
*2Varies according to version
• SEND/ALC connector : Phono (RCA)
• Mode
: USB, LSB, CW, RTTY, AM,
: 101 (99 regular, 2 scan edges)
D Receiver
• Receive system
: Double-conversion
superheterodyne system
• Number of memory
channels
• Sensitivity
SSB, CW, RTTY
AM
:
• Frequency stability
:
Less than 200 Hz from 1
min. to 60 min. after power
on. After that rate of stability
less than 30 Hz/hr. at +25°C
( + 7 7 ° F ) . T e m p e r a t u r e
fluctuations 0°C to +50°C
(+32°F to +122°F) less than
350 Hz.
0.16 µV (1.8–29.999999 MHz)
13 µV (0.5–1.799999 MHz)
2 µV (1.8–29.999999 MHz)
• Squelch sensitivity (threshold):
SSB, CW, RTTY Less than 5.6 µV
• Selectivity
:
SSB, CW, RTTY More than 2.1 kHz/–6 dB
Less than 4.5 kHz/–60 dB
AM
• Power supply
requirement
: 13.8 V DC 15%
(negative ground)
More than 6 kHz/–6 dB
Less than 20 kHz/–40 dB
• Current drain
(at 13.8 V DC)
: Receive
Standby
1.3 A
• Spurious and image rejection ratio:
More than 70 dB
Max. audio 2.0 A
Transmit
(1.8–29.999999 MHz)
Max. power 20.0A
• RIT variable range
: 1200 Hz
•
Operatable temp. range: –10°C to +60°C; +14°F to
• Audio output power : More than 2.0 W at 10%
(at 13.8 V DC)
+140°F
distortion with an 8 Ω load
• Antenna connector
• Dimensions
: SO-239 (50 Ω)
• PHONES connector
:
3-conductor 6.35 (d) mm (1⁄4˝)
:
240(W) × 95(H) × 239(D) mm
• External SP connector: 2-conductor 3.5 (d) mm (1⁄8˝)
(projections not included) 97⁄16(W) × 33⁄4(H) × 913⁄32(D) in
/8 Ω
• Weight (approx.)
: 3.8 kg; 8 lb 6 oz
• ACC connector
: 13-pin
• REMOTE connector : 2-conductor 3.5 (d) mm (1⁄8˝)
D Transmitter
• Output power
SSB, CW, RTTY
AM
:
:
2–100 W
2–40 W
• Modulation system
SSB
AM
Balanced modulation
Low level modulation
All stated specifications are typical and subject to
change without notice or obligation.
54
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OPTIONS
12
IC-PW1 HF + 50 MHz 1 KW LINER AMPLIFIER
AT-180 HF + 50 MHz
AUTOMATIC ANTENNA TUNER
Full-duty 1 kW linear
amplifier including an
automatic antenna
tuner. Has automatic
t u n i n g a n d b a n d
selection capability.
Full break-in (QSK)
operation is possible.
The amplifier/power
supply unit and the
remote control unit are
separated.
Fully automatic antenna tuner with
preset memories for each 100 kHz.
Unique “Automatic tuner on ” function
is available. See p. 51 for AT-180
specifications.
AH-2b ANTENNA ELEMENT
PS-85 DC POWER SUPPLY
AH-4 HF + 50 MHz AUTOMATIC
ANTENNA TUNER
A
2 . 5
m
l o n g
antenna element
for mobile operation
with the AH-4.
• Frequency
coverage:
3.5–28 MHz bands
with the AH-4
Specially designed to tune a long
wire antenna for portable or mobile
HF operation. The PTT tuner start
function provides simple operation.
• Input power rating: 120 W
Light weight switching regulator
system power supply.
• Output voltage: 13.8 V DC
• Max. current drain: 20 A
SM-8 DESKTOP MICROPHONE
SM-20 DESKTOP MICROPHONE
SM-6 DESKTOP MICROPHONE
Including 2 connection cables
for simultaneous connection of 2
transceivers. Has [UP]/[DOWN]
switches. .
Unidirectional, electret microphone
for base station operation. Includes
[UP]/[DOWN] switches and a low cut
function.
Electret condenser-type desktop
microphone.
HM-36 HAND MICROPHONE
SP-20 EXTERNAL SPEAKER
SP-21 EXTERNAL SPEAKER
4 audio filters; headphone jack; can
connect to 2 transceivers.
• Input impedance: 8 Ω
Hand microphone equipped with
[UP]/[DOWN] switches.
Designed for base station operation.
Input impedance: 8 Ω
Same as supplied.
• Max. imput power: 5 W
Max. input power: 5 W
55
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12
OPTIONS
SP-7 EXTERNAL SPEAKER
FL-52A, FL-53A, FL-96, FL-222
UT-106 DSP RECEIVE UNIT
and FL-257 455 KHz FILTERS
• FL-52A: 500 Hz/–6dB (CW/RTTY
narrow)
• FL-53A: 250 Hz/–6dB (CW narrow)
• FL-96: 2.8 KHz/–6dB (SSB wide)
• FL-222: 1.8 KHz/–6dB (SSB narrow)
• FL-257: 3.3 KHz/–6dB (SSB wide)
Compact speaker for base station
operation. Height can be adjusted for
your convenience.
Provides AF DSP functions such as
noise reduction and auto notch.
UT-102 VOICE SYNTHESIZER
CR-338 HIGH-STABILITY
MB-23 CARRYING HANDLE
CRYSTAL UNIT
C o n t a i n s a t e m p e r a t u r e -
compensating oven heater and
crystal unit for improved frequency
stability.
Announces the receive frequency,
mode, S-meter level and current time
in a clear, electronically-generated
voice, in English (or Japanese).
Carrying handle, convenient for
portable operation.
• Frequency stability: 0.5 ppm
AH-710 FOLDED DIPOLE
IC-MB5 MOBILE MOUNTING
CT-17 CI-V LEVEL
ANTENNA
BRACKET
CONVERTER
Covers from 1.9–30 MHz bands. Has
an SO-239 connector. 30 m (98.4 ft)
coaxial cable with PL-259 connector
is supplied.
For remote receiver control using
a personal computer. You can
change frequencies, operating mode,
memory channels, etc.
Transceiver mounting bracket for
mobile operation.
OPC-599 ADAPTER CABLE
13-pin, ACC connector to 7-pin + 8-pin ACC connector.
56
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CONTROL COMMAND
13
n Remote jack (CI-V) information
• CI-V connection example
BC-25
(optional)
The transceiver can be connected through an
optional CT-17 CI-V LEVEL CONVERTER to a personal
computer equipped with an RS-232C port. The Icom
Communications Interface-V (CI-V) controls the
following functions of the transceiver.
IC-718
9–15
V DC
personal
computer
Up to 4 Icom CI-V transceivers or receivers can be
connected to a personal computer equipped with an
RS-232C port. See p. 32 for setting the CI-V condition
using set mode.
ct-17
mini-plug cable
• Data format
The CI-V system can be operated using the following
data formats. Data formats differ according to
command numbers. A data area or sub command is
added for some commands.
CONTROLLER TO IC-718
OK MESSAGE TO CONTROLLER
q
w
e
r
t
y
u
FE FE 5E E0 Cn Sc Data area FD
FE FE E0 5E FB FD
NG MESSAGE TO CONTROLLER
IC-718 TO CONTROLLER
q
w
e
r
t
y
u
FE FE E0 5E FA FD
FE FE E0 5E Cn Sc Data area FD
57
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13
CONTROL COMMAND
• Command table
Command Sub command
Description
Send frequency data
Send mode data
Read Upper/Lower frequencies
Read frequencies
Read operating mode
Set operating frequency
Set mode
00
01
02
03
04
05
06
—
—
—
—
—
—
—
—
00
01
A0
B0
—
—
—
—
—
00
01
D0
D3
00
01
—
—
01
02
03
06
09
0A
0B
0C
0F
Set VFO
Set VFO A
07
Set VFO B
VFO A=B
VFO A � B
Set Memory
Set Memory CH
Memory write
Memory � VFO
Memory clear
Scan stop
08
09
0A
0B
Prog/Memo Scan Start
Resume OFF
Resume ON
SPLIT OFF
0E
0F
SPLIT ON
10
11
Set TS
ATT
AF Gain
RF Gain
14
SQL Level
NR Level
CW Pitch
RF Power
MIC Gain
KEY Speed
BK-IN Delay
Read SQL Open/Close
Read SIG (S-meter) level
PRE-AMP
01
02
15
16
02
22
40
41
44
46
47
00
NB
NR
Auto Notch
COMP
VOX
BK-IN
19
Read ID
58
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INTERNAL VIEW
14
n Top view
Caution:
The transceiver has been
thoroughly tested and
adjusted at the factory
before being shipped.
The transceiver warranty
does not cover any
problems caused by
unauthorized internal
adjustment.
Drive ID adj. (R 21)
Final ID adj. (R 24)
Final amplifier (2SC2094x2)
Fuse (FGB 4 A)
FILTER unit
PA unit
R 25
n Bottom view
Carrier suppression adj.
(R 2303)
IC APC adj. (R 1720)
Tx power adj. (R 1707)
MAIN unit
AM Tx carrier adj.
(R 1730)
Reference freq. adj. (C 16)
Optional crystal (CR-338)
Optional IF filter
(See p. 24)
PLL unit
59
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INSTALLATION NOTES
15
For amateur base station installations, it is
recommended that the forwards clearance in front of
the antenna array is calculated relative to the EIRP
(Effective Isotropic Radiated Power). The clearance
height below the antenna array can be determined in
most cases from the RF power at the antenna input
terminals.
In all cases any possible risk depends on the
transmitter being activated for long periods. (actual
recommendation limits are specified as an average
of 6 minutes) Normally the transmitter is not active for
long periods of time. Some radio licenses will require
that a timer circuit automatically cuts the transmitter
after 1–2 minutes etc.
As different exposure limits have been recommended
for different frequencies, a relative table shows a
guideline for installation considerations.
Similarly some types of transmitter, SSB, CW, AM,
etc. have a lower ‘average’ output power and the
perceived risk is even lower.
Below 10 MHz, the recommended limits are specified
in terms of V/m or A/m fields as they are likely to fall
within the near-field region. Similarly, at antennae
may be physically short in terms of electrical length
and that the installation will require some antenna
matching device which can create high intensity
magnetic fields. Analysis of such MF installations
is best considered in association with published
guidance notes such as the FCC OET Bulletin 65
Edition 97-01 and its annexes relative to amateur
transmitter installations. Further information can be
Versions of the IC-718 which display the “CE”
symbol on the serial number seal, comply with
the essential requirements of the European
Radio and Telecommunication Terminal
Directive 1999/5/EC.
This warning symbol indicates that this
equipment operates in non-harmonised
frequency bands and/or may be subject to
licensing conditions in the country of use. Be
sure to check that you have the correct version
of this radio or the correct programming of
this radio, to comply with national licensing
requirement.
• Typical amateur radio installation
Exposure distance assumes that the predominant
radiation pattern is forwards and that radiation
vertically downwards is at unity gain (sidelobe
suppresion is equal to main lobe gain). This is true of
almost every gain antenna today. Exposed persons
are assumed to be beneath the antenna array and
have a typical height to 1.8 m.
The figures assume the worst case emission of
constant carrier.
For the bands 10 MHz and higher the following power
density limits are recommended :
10–30 MHz
2 W/sq m
Watts (EIRP)/ Clearance heights
List of Country codes (ISO 3166-1)
1
10
25
100
1000
2.1 (m)
2.8
3.4
5
Country
Codes
Country
Codes
1
2
3
4
5
6
7
8
9
Austria
AT
BE
BG
HR
CZ
CY
DK
EE
FI
FR
DE
GR
HU
IS
18 Liechtenstein
19 Lithuania
20 Luxembourg
21 Malta
22 Netherlands
23 Norway
LI
LT
Belgium
Bulgaria
Croatia
Czech Republic
Cyprus
Denmark
Estonia
Finland
12
LU
MT
NL
NO
PL
PT
RO
SK
SI
ES
SE
CH
TR
GB
Watts (EIRP)/ Forward clearance
100
2 (m)
6.5
20
24 Poland
1,000
10,000
100,000
25 Portugal
26 Romania
27 Slovakia
28 Slovenia
29 Spain
30 Sweden
31 Switzerland
32 Turkey
10 France
11 Germany
12 Greece
13 Hungary
14 Iceland
15 Ireland
16 Italy
65
IE
IT
33 United Kingdom
17 Latvia
LV
60
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15
INSTALLATION NOTES
DECLARATION
OF CONFORMITY
We Icom Inc. Japan
1-1-32, Kamiminami, Hirano-ku
Osaka 547-0003, Japan
Declare on our sole responsibility that this equipment complies with the
essential requirements of the Radio and Telecommunications Terminal
Equipment Directive, 1999/5/EC, and that any applicable Essential Test
Suite measurements have been performed.
Düsseldorf 17th July 2007
Place and date of issue
Kind of equipment: HF ALL BAND TRANSCEIVER
Icom (Europe) GmbH
Himmelgeister straße 100
D-40225 Düsseldorf
Type-designation:
i718
Authorized representative name
Version (where applicable):
This compliance is based on conformity according to Annex III of the
directive 1999/5/EC using the following harmonised standards:
i) EN 301 489-1 V1.4.1 (August 2000)
H. Ikegami
General Manager
ii) EN 301 489-15 V1.2.1 (August 2002)
iii) EN 301 783-2 V1.1.1 (September 2000)
iv) EN 60950-1: 2001
Signature
Version and Frequency coverage
EUR (#03)
Tx
FRA (#05)
Tx
Rx
Rx
1.800000 – 1.999999
0.500000 – 29.999999
1.810000 – 1.850000
1.810000 – 1.850000
3.500000 – 3.800000
7.000000 – 7.100000
10.100000 – 10.150000
14.000000 – 14.350000
18.068000 – 18.168000
21.000000 – 21.450000
24.890000 – 24.990000
28.000000 – 29.700000
3.500000 – 3.800000
7.000000 – 7.100000
10.100000 – 10.150000
14.000000 – 14.350000
18.068000 – 18.168000
21.000000 – 21.450000
24.890000 – 24.990000
28.000000 – 29.700000
3.500000 – 3.800000
7.000000 – 7.100000
10.100000 – 10.150000
14.000000 – 14.350000
18.068000 – 18.168000
21.000000 – 21.450000
24.890000 – 24.990000
28.000000 – 29.700000
ESP (#06)
ITA (#04)
Tx
Rx
Tx
Rx
1.830000 – 1.850000
3.500000 – 3.800000
7.000000 – 7.100000
10.100000 – 10.150000
14.000000 – 14.350000
18.068000 – 18.168000
21.000000 – 21.450000
24.890000 – 24.990000
28.000000 – 29.700000
1.830000 – 1.850000
3.500000 – 3.800000
7.000000 – 7.100000
10.100000 – 10.150000
14.000000 – 14.350000
18.068000 – 18.168000
21.000000 – 21.450000
24.890000 – 24.990000
28.000000 – 29.700000
1.800000 – 1.999999
3.400000 – 3.999999
6.900000 – 7.499999
9.900000 – 10.499999
13.900000 – 14.499999
17.900000 – 18.499999
20.900000 – 21.499999
24.400000 – 25.099999
28.000000 – 29.999999
0.500000 – 29.999999
(Unit: MHz)
61
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IC-718 #03
(Europe)
< Intended Country of Use >
AT BE CY CZ DK EE
FI
IT
FR DE GR HU IE
LV LT LU MT NL
PL PT SK SI
ES SE
GB IS
RO TR HR
LI
NO CH BG
IC-718 #04
(Italy)
< Intended Country of Use >
AT BE CY CZ DK EE
FI
IT
FR DE GR HU IE
LV LT LU MT NL
PL PT SK SI
ES SE
GB IS
RO TR HR
LI
NO CH BG
IC-718 #05
(France)
< Intended Country of Use >
AT BE CY CZ DK EE
FI
IT
FR DE GR HU IE
LV LT LU MT NL
PL PT SK SI
ES SE
GB IS
RO TR HR
LI
NO CH BG
IC-718 #06
(Spain)
< Intended Country of Use >
AT BE CY CZ DK EE
FI
IT
FR DE GR HU IE
LV LT LU MT NL
PL PT SK SI
ES SE
GB IS
RO TR HR
LI
NO CH BG
A-5649D-1EX-y
Printed in Japan
© 2000–2007 Icom Inc.
Printed on recycle paper with soy ink.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
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