Icom IC-706MKIIG, I706MKTMG User Manual

INSTRUCTION MANUAL

i706MK™G

HF/VHF/UHF ALL MODE TRANSCEIVER

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

EXPLICIT DEFINITIONS

PRECAUTIONS

IMPORTANT

Read this instruction manual carefully

before attempting to operate the transceiver.

Save this instruction manual. This instruction

manual contains important safety and operating instructions for the IC-706MKIIG.

RWARNING HIGH VOLTAGE! NEVER

attach an antenna or internal antenna connector during transmission. This may result in an electrical shock or burn.

RNEVER apply AC to the [DC13.8V] socket on the

transceiver rear panel. This could cause a ﬁre or ruin the transceiver.

RNEVER apply more than 16 V DC, such as a 24 V

battery, to the [DC13.8V] socket on the transceiver rear panel. This could cause a ﬁre or ruin the transceiver.

RNEVER let metal, wire or other objects touch any

internal part or connectors on the rear panel of the transceiver. This will cause electric shock.

RNEVER expose the transceiver to rain, snow or

any liquids.

NEVER allow children to play with the transceiver.

AVOID using or placing the transceiver in areas with

temperatures below –10°C (+14°F) or above +60°C (+140°F). Be aware that temperatures on a vehicle’s dashboard can exceed 80°C, resulting in permanent damage to the transceiver’s front panel if left there for extended periods.

AVOID placing the transceiver in excessively dusty environments or in direct sunlight.

AVOID placing the transceiver against walls or putting anything on top of the transceiver. This will obstruct heat dissipation.

During mobile operation, DO NOT operate the transceiver without running the vehicle’s engine. When transceiver power is ON and your vehicle’s engine is OFF, the vehicle’s battery will soon become exhausted.

Make sure the transceiver power is OFF before starting the vehicle. This will avoid possible damage to the transceiver by ignition voltage spikes.

During maritime mobile operation, keep the transceiver and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications.

BE CAREFUL!

The heatsink will become hot when

operating the transceiver continuously for long periods.

BE CAREFUL! If a linear ampliﬁer is connected, set the transceiver’s RF output power to less than the linear ampliﬁer’s maximum input level, otherwise, the linear ampliﬁer will be damaged.

Use Icom microphones only (supplied or optional). Other manufacturer’s microphones have different pin assignments and connection to the IC-706MKIIG may damage the transceiver.

Beat signals may be heard on some frequencies. These will occur as a result of circuit construction.

For U.S.A. only

Caution: Changes or modiﬁcations to this transceiver, not expressly approved by Icom Inc., could void your authority to operate this transceiver under FCC regulations.

The explicit deﬁnitions described below apply to this instruction manual.

WORD DEFINITION

RWARNING

Personal injury, fire hazard or electric shock may occur.

CAUTION

Equipment damage may occur.

NOTE

If disregarded, inconvenience only. No risk of personal injury, ﬁre or electric shock.

TABLE OF CONTENTS

IMPORTANT ............................................................. i

PRECAUTIONS ........................................................ i

EXPLICIT DEFINITIONS .......................................... i

TABLE OF CONTENTS ............................................ ii

UNPACKING ............................................................. ii

1 PANEL DESCRIPTION .....................................1–8

■ Front panel ............................................................... 1

■ Function switches ..................................................... 3

■ Rear and side panels ............................................... 5

■ Function display ....................................................... 7

■ Microphone (HM-103) ............................................... 8

2 INSTALLATION AND CONNECTIONS .......... 9– 14

■ Unpacking ................................................................. 9

■ Grounding ................................................................. 9

■ Antenna .................................................................... 9

■ Installation ................................................................ 10

■ Required connections ............................................... 11

■ Advanced connections ............................................. 12

■ Power supply connections ........................................ 13

■ External antenna tuners and linear ampliﬁer ............ 14

3 FREQUENCY SETTING................................ 15–19

■ When ﬁrst applying power (CPU resetting) .............. 15

■ Initial settings ............................................................ 15

■ VFO description ........................................................ 16

■ Frequency setting ..................................................... 17

■ Mode selection ......................................................... 19

4 RECEIVE AND TRANSMIT .......................... 20– 38

■ Functions for receive ................................................ 20

■ Functions for transmit ............................................... 25

■ Split frequency operation .......................................... 29

■ Tone squelch operation ............................................ 31

■ Tone scan operation ................................................. 31

■ One-touch repeater .................................................. 32

■ Auto repeater function .............................................. 32

■ Functions for CW ...................................................... 33

■ Functions for RTTY .................................................. 35

■ Packet operation ...................................................... 37

■ SWR ......................................................................... 38

5 MEMORY AND SCAN OPERATION ............ 39–44

■ Memory channels ..................................................... 39

■ Memory channel selection ........................................ 39

■ Memory clearing ....................................................... 39

■ Memory/call programming ........................................ 40

■ Frequency transferring ............................................. 41

■ Memory names ......................................................... 41

■ Memo pads ............................................................... 42

■ Scan types ................................................................ 43

■ Preparation .............................................................. 43

■ Programmed scan operation .................................... 44

■ Memory scan operation ............................................ 44

■ Select memory scan operation ................................. 44

■ Priority watch ............................................................ 44

6 REMOTE JACK (CI-V) INFORMATION ........ 45–46

7 SET MODE .................................................... 47–55

■ General ..................................................................... 47

■ Quick set mode items ............................................... 48

■ Initial set mode items ............................................... 50

8 MAINTENANCE ................................................... 56

■ Fuse replacement ..................................................... 56

■ Memory backup ........................................................ 56

■ Cleaning ................................................................... 56

9 TROUBLESHOOTING .................................. 57– 58

10 OPTIONAL INSTALLATIONS/SETTINGS .. 59–62

■ Opening the transceiver case ................................... 59

■ UT-102

VOICE SYNTHESIZER UNIT

............................... 59

■ CR-282

HIGH-STABILITY CRYSTAL UNIT

........................ 60

■ IF ﬁlters ..................................................................... 60

■ UT-106

DSP RECEIVER UNIT

....................................... 61

■ MB-72

CARRYING HANDLE

.......................................... 61

■ AT-180 internal switch description ............................ 62

11 INTERNAL VIEWS ............................................. 63

12 OPTIONS .................................................... 64– 65

13 SPECIFICATIONS ............................................. 66

14 MENU GUIDE ..............................................67–68

UNPACKING

Accessories included with the IC-706MKIIG:

Qty.

q DC power cable* ....................................................1

w Hand microphone (HM-103)...................................1

e Spare fuse (30 A) ...................................................2

r Spare fuse (4 A) .....................................................1

t RTTY key plug........................................................1

y Electronic keyer plug ..............................................1

u ACC cable ..............................................................1

i Ferrite bead** .........................................................1

*OPC-639 for Europe versions (differs from the diagram at

left), OPC-025D for other versions.

**Not supplied with some versions.

■ Front panel

q POWER SWITCH [POWER] (p. 15)

Turns power ON and OFF.

• Push momentarily to turn power ON.

• Push for 2 sec. to turn power OFF.

w AF GAIN CONTROL [AF] (inner control; p. 15)

Rotate clockwise to increase the audio output from the speaker; rotate counterclockwise to decrease the audio output from the speaker.

e RF GAIN CONTROL/SQUELCH CONTROL

[RF/SQL] (outer control; p. 22)

➥ Adjusts the squelch threshold level (to mute noise

when receiving no signal) in all modes.

➥ This control can be used for RF gain control to

adjust receiver gain manually.

• RF gain selection can be set in initial set mode (p. 50).

• RF gain is usable in SSB/CW/RTTY modes only.

r FUNCTION DISPLAY

Shows the operating frequency, dot matrix indications, selected memory channel, etc. See p. 7 for details.

t TUNING STEP SWITCH [TS] (pgs. 17, 18)

➥ Push momentarily to cycle between 1 Hz/10 Hz,

programmable and 1 MHz tuning steps.

• 1 and 10 Hz steps are only available in SSB, CW and RTTY modes; 1 MHz steps are only available in FM, WFM and AM modes.

➥ Push for 2 sec. to toggle between 1 and 10 Hz

steps, or; when the programmable tuning steps is indicated, push for 2 sec. to enter programmable tuning step mode.

y MODE SWITCH [MODE] (p. 19)

➥ Push momentarily to cycle through the operating

modes: USB/LSB ➧ CW/CWå ➧ RTTY/åRTTY ➧

➧ FM/WFM/AM

➥ Push and hold for 2 sec. to toggle between the

following operating modes: USB ↔ LSB CW ↔ CWå RTTY↔ åRTTY FM → WFM → AM → FM, etc.

RECEIVE/TRANSMIT INDICATORS [RX]/[TX]

[RX] lights green while receiving (and squelch opens); [TX] lights red while transmitting.

i MAIN DIAL

Changes the displayed frequency, selects initial set mode items, etc.

o UP/DOWN (BAND) SWITCHES [Y/Z(BAND)]

➥ Push to select a band.

• Can also be used to advance quick set mode items, initial set mode items, etc.

➥ Push and hold to scroll through the bands contin-

uously.

!0 MAIN DIAL TENSION LATCH

Selects the main dial tension.

• 2 positions are available.

!1 MICROPHONE CONNECTOR (p. 8)

Modular-type microphone connector—connects the supplied microphone (HM-103).

• The optional OPC-589 can be used to connect an 8-pin microphone such as the SM-8 or SM-20, if desired.

• A microphone connector is also available on the rear

PANEL DESCRIPTION

HF/VHF/UHF TRANSCEIVER

i706MK™G

RIT/ SUB

MENU F-1 F-2 F-3

MODE

BAND

DISPLAY

LOCK

M-CH

PHONES

TUNER/CALL

P.AMP/ATT

POWER

SHIFT

RF/SQL

w e

!2!3!4!5!6!7!8

VFO A

537920401060dB

USB

SPL

A/B A=B

PANEL DESCRIPTION

panel. DO NOT connect 2 microphones simultaneously.

!2 LOCK SWITCH [LOCK]

➥ Push momentarily to turn the dial lock function

ON and OFF.

• The dial lock function electronically locks the main dial.

➥ When the optional UT-102

VOICE SYNTHESIZER

UNIT

is installed (p. 52), push for 2 sec. to have

the frequency, etc. announced.

• UT-102 operation can be adjusted in initial set mode (pgs. 53, 54).

!3 DISPLAY SWITCH [DISP] (p. 68)

➥ Push momentarily to select one of the three menu

sets: M1 to M4, S1 to S4 and G1 to G4.

➥ Push for 2 sec. to select quick set mode.

!4 FUNCTION SWITCHES [F1]/[F2]/[F3] (pgs. 3, 4, 68)

Push to select the function indicated in the dot matrix display above these switches.

• Functions vary depending on the menu set selected.

!5 MENU SWITCH [MENU] (p. 68)

➥Push this switch one or more times to select

menus within a menu set (M, S or G), or push to advance through the quick set mode and initial set mode displays.

➥ Push and hold to jump between two different

function menu sets.

!6 RIT/SUB DIAL SWITCH [RIT/SUB] (p. 20)

➥ Push to toggle the RIT or SUB DIAL function ON

and OFF—initial set mode is used to select the desired action*.

• Lights green when the SUB DIAL function is ON; lights red when the RIT function is ON.

• Use the [M-CH] control to vary the RIT frequency or SUB DIAL frequency (see above).

➥ When the RIT function is ON, push for 2 sec. to

add or subtract the shifted frequency to the operating frequency.

*Even if RIT is selected in initial set mode, RIT cannot be

selected when operating AM, FM or WFM modes.

!7 SHIFT CONTROL [SHIFT] (outer control; p. 20)

Shifts the center frequency of the receiver’s IF passband.

• Rotate the control clockwise to shift the center frequency higher, or rotate the control counterclockwise to shift the center frequency lower.

• When the graphic menu display (

G2) is selected, the IF

passband is graphically displayed and changes in accordance with the [SHIFT] control (see p. 20).

!8 M-CH CONTROL [M-CH] (inner control)

➥

When the RIT or SUBDIAL functions are OFF, rotate to select a memory channel number (p. 35).

➥ Shifts the receive frequency while the RIT func-

tion is ON in SSB, CW and RTTY modes (see below and p. 20).

• RIT variable range is ± 9.99 kHz

➥ Changes the operating frequency in the selected

tuning steps while the SUB DIAL function is ON (p. 18).

!9 HEADPHONE JACK [PHONES] (p. 12)

Accepts headphones with 4–16 Ω impedance.

• When headphones are connected, no receive audio comes from the speaker.

• When the PHONES/SPEAKER switch on the back of the front panel is set to the [SPEAKER] position, an external speaker can be connected. This is convenient for mobile or outdoor operation.

@0 TUNER/CALL SWITCH [TUNER/CALL]

(pgs. 26, 27)

➥ During HF/50 MHz operation, push this switch

momentarily to toggle the automatic antenna tuner function ON/OFF.

• An optional antenna tuner must be connected.

➥ During HF/50 MHz operation, push this switch for

2 sec. to manually tune the antenna.

• An optional antenna tuner must be connected.

➥ During 144/430 MHz operation, push this switch

momentarily to select the call channel (or the previous channel/frequency when the call channel is already selected). (p. 39)

•“C1” is the 144 MHz call channel and “C2” is the 430 MHz call channel.

FRONT PANEL LATCH (p. 10) Pull away from the transceiver (towards yourself when looking at the front of the transceiver) to detach the front panel from the main body of the transceiver.

@2 P

REAMP/ATTENUATOR SWITCH [P.AMP/ATT]

(p. 21)

➥ Push momentarily to turn the preamp ON or OFF. ➥ Push and hold to turn the 20 dB attenuator ON;

push momentarily to turn the attenuator OFF.

• Lights green when the preamp is ON; lights red when the 20 dB attenuator is ON.

LOCK

Lights while the lock function is activated.

RIT SUB

Lights red while the RIT function is activated; green while the SUB DIAL function is activated.

TUNER/CALL

Lights while the automatic tuning function is activated.

P.AMP/ATT

Lights green while the preamp is activated; lights red while the attenuator is activated.

■ Function switches

D M1 FUNCTIONS

SPLIT OPERATION (p. 29)

Toggles the split function ON and OFF.

•“ä”appears when the split function is ON.

• The function of [F-3] changes to XFC when the

split function is ON.

VFO A/B SELECTION (p. 16)

➥ Toggles between VFO A and VFO B in

VFO mode.

➥ Toggles between transmission VFO and

reception VFO during split operation.

➥ Toggles between the transmit and

receive frequencies (and modes) of memory channels when the split function is turned ON.

VFO EQUALIZATION (p. 16)

Equalizes the frequency and operating mode of the two VFO’s.

• The rear (undisplayed) frequency and operating mode are equalized to the front (displayed) VFO frequency and operating mode.

TRANSMIT FREQUENCY CHECK (p. 29)

Appears when the split function is turned ON—monitors the transmit frequency when pushed and held.

• While pushed, the transmit frequency can be changed with the main dial.

D M2 FUNCTIONS

MEMORY WRITE (p. 40)

Stores the displayed frequency and operating mode into the displayed memory channel.

MEMORY TRANSFER (p. 41)

Transfers the frequency and operating

mode in the selected memory channel to a

VFO.

VFO/MEMORY (p. 39)

Toggles between VFO and memory

modes.

MEMORY CLEAR (p. 39)

Clears the selected memory channel’s contents.

•“}” appears.

D M3 FUNCTIONS

NARROW FILTER (p. 23)

Toggles the narrow ﬁlter (or wide ﬁlter—

push for 2 sec.) ON and OFF.

•“ã”appears when the narrow ﬁlter is ON; “ç”

appears when the wide ﬁlter is ON.

• An optional narrow ﬁlter and presetting in initial set mode (p. 51) is necessary to use the following: CW/RTTY narrow: FL-100, FL-101 or FL-232 SSB narrow: FL-223 SSB wide: FL-103

NOISE BLANKER (p. 21)

Turns the noise blanker ON and OFF.

• The noise blanker does not function in FM and WFM modes; the “AM Noise blanker” item in initial set mode must be set to ON for the noise blanker to work in AM mode (p. 53).

METER SELECTION (p. 25)

Selects the type of meter displayed (during transmit) in the function display.

• Power, ALC or SWR metering can be selected.

• Only an S-meter is available for receive.

D M4 FUNCTIONS

DURING SSB/AM OPERATION:

DURING CW OPERATION:

DURING RTTY OPERATION:

DURING FM OPERATION:

F-3

MET

F-2

F-1

FIL

F-2

MCL

F-3

V/M

F-2

MÜV

F-1

F-3

XFC

F-3

A=B

F-2

A/B

F-1

SPL

PANEL DESCRIPTION

F-1

FIL

F-2

F-3

MET

F-1

VOX

F-2

COM

F-3

AGC

F-1 F-2

BRKi/4

F-3

AGC

F-1

F-2

MÜV

MCL

F-3

V/M

(in memory mode)

F-1

1/4

F-2 F-3

AGC

F-1

VOX

F-2

TSQ

F-3

TON

F-1

SPL

F-2

A/B

XFC

F-3

A=B

PANEL DESCRIPTION

VOX FUNCTION (p. 26)

Toggles the VOX function ON and OFF.

• The [VOX GAIN] and [ANTI VOX] are available on the side panel.

• VOX delay can be set in quick set mode (p. 48).

SPEECH COMPRESSOR (p. 26)

Toggles the speech compressor ON and OFF.

• The [COMP GAIN] control is available on the side panel.

AGC (p. 21)

Changes the time constant of the AGC circuit.

BREAK-IN (p. 33)

Selects semi break-in, full break-in (QSK) and break-in OFF

•“BK” or “F-BK” appears when selecting semi break-in or full break-in, respectively.

• An external switch, such as a foot switch, is necessary to connect to the ACC socket (pin 3, pin 7 or RTTY SEND—see p. 35) to use no break-in operation.

1/4 FUNCTION (p. 36)

Toggles the 1/4 function ON and OFF.

• When the 1⁄4 function is ON, a bar appears under the

⁄4 indication and ﬁne tuning can be

used.

TONE SQUELCH (p. 31)

Toggles the tone squelch function ON and OFF (a tone squelch frequency must be selected in Quick Set mode).

•“FM-TSQL” appears when the function is ON.

REPEATER TONE OPERATION (p. 30)

➥ Toggles the subaudible tone encoder for

repeater use ON and OFF.

•“FM-T” appears when the function is ON.

➥ Transmits a 1750 Hz tone burst when

pushed and held during transmission.

• Tone frequencies or tone burst can be set in initial set mode (p. 49).

D S1 FUNCTIONS

MEMORY WRITE (p. 40)

Stores the displayed frequency and operating mode into the displayed memory channel.

MEMO PAD WRITE (p. 42) Stores the displayed frequency and operating mode into a memo pad.

MEMO PAD READ (p. 42) Calls up a memo pad.

D S2 FUNCTIONS

SCAN (p. 44)

Starts and stops the scan function.

PRIORITY WATCH (p. 44) Starts and stops priority watch.

SELECT SCAN (p. 44) Toggles the select setting ON and OFF for the selected memory channel.

VFO/MEMORY (p. 44) Toggles between VFO and memory modes.

D S3 FUNCTIONS

QUICK BAND CHANGE FUNCTION (p. 19)

This item provides access to the band stacking register. By default the 7, 50 and 144 MHz bands are displayed. Push [F-1] to [F-3] for 2 sec. to select a new band if desired.

• A mode is memorized along with the frequency for each band.

D S4 FUNCTIONS (may be optional for some ver.)

AUTOMATIC NOTCH FILTER (p. 24)

This function automatically attenuates beat tones, tuning signals, etc., even if they are moving.

NOISE REDUCTION (p. 24) This function reduces noise components and picks out desired signals which are buried in the noise.

NOISE REDUCTION DISPLAY (p. 24) This displays the noise reduction level when using the noise reduction function.

F-3

NRL

F-2

F-1

ANF

F-3

V/M

F-2

SEL

F-2

PRI

F-1

SCN

F-3

MPR

F-2

MPW

F-1

F-3

TON

F-2

TSQ

F-1

1/4

F-2

BRK

F-3

AGC

F-2

COM

F-1

VOX

F-1

F-2

MPW

F-3

MPR

F-1

SCN

F-2

PRI

SEL

F-3

V/M

(in memory mode)

F-1

F-2

F-3

144

F-1

ANF

F-2

F-3

NRL

PANEL DESCRIPTION

■ Rear and side panels

q GROUND TERMINAL [GND] (p. 9)

Connect this terminal to a ground to prevent electrical shocks, TVI, BCI and other problems.

ANTENNA CONNECTORS [ANT 1], [ANT 2] (p. 11)

Accept a 50 Ω antenna with an PL-259 type plug.

• [ANT 1] is for connection to an HF/50 MHz antenna.

• [ANT 2] is for connection to 144 MHz antenna.

• These connectors are switched above or below 60 MHz.

DATA JACK [DATA] (p. 12) 6-pin min DIN jack to connect a TNC, etc. for packet operation.

ACCESSORY SOCKET [ACC] (p. 6) Enables connection to external equipment such as a TNC for data communications, a linear ampliﬁer or an automatic antenna selector/tuner, etc.

• See page at right for socket information.

RTTY JACK [RTTY] (p. 35) Connects an external terminal unit for RTTY (FSK) operation.

• The keying polarity and mark/shift frequencies can be

selected in quick set mode (p. 48).

y CI-V REMOTE CONTROL JACK [REMOTE]

(p. 45) Designed for use with a personal computer for remote operation of transceiver functions.

u MICROPHONE CONNECTOR [MIC] (p. 11)

Accepts the supplied microphone (connected in parallel with the front panel’s [MIC] connector).

• See pgs. 1 and 2 for microphone notes.

• See p. 8 for microphone connector information.

i ELECTRONIC KEYER JACK [KEY] (p. 33)

Accepts a paddle to activate the internal electronic keyer.

• Selection between the internal electronic keyer and

straight key operation can be made in quick set mode. (p. 49)

o DC POWER SOCKET [DC13.8V] (p. 13)

Accepts 13.8 V DC through the supplied DC power cable.

!0 EXTERNAL SPEAKER JACK [EXT SP] (p. 12)

Accepts a 4–16 Ω speaker.

!1 TUNER CONTROL SOCKET [TUNER] (p. 12)

Accepts the control cable from an optional AH-3

AUTOMATIC ANTENNA TUNER

!2 SPEECH COMPRESSION LEVEL CONTROL

[COMP GAIN] (p. 26)

Adjusts the compression level.

• This control is available only when the speech compressor is ON.

COMP

GAIN /SIDE T

BEEP

DC 13.8V

EXT SP

MIC

KEY

TUNER

ANT 1

ANT 2

GND

er ui

!2 !3

!0!1

When connecting a straight key

When connecting a paddle

(dot) (com) (dash)

(⊕)

Rear panel view

Recommended level

Counterclockwise decreases

Clockwise increases

COMP

GAIN /SIDE T

BEEP

• ACC SOCKET

• When connecting the ACC conversion cable (OPC-599)

PANEL DESCRIPTION

!3 BEEP/SIDETONE CONTROL [BEEP/SIDETONE]

Adjusts the beep tone and CW side tone audio levels.

TECHNICAL INFORMATION

ACC PIN # NAME DESCRIPTION SPECIFICATIONS COLOR

1 8 V Regulated 8 V output.

Output voltage : 8 V ±0.3 V Output current : Less than 10 mA

brown

2 GND Connects to ground. red

3 HSEND

Input/output pin (HF/50 MHz). Goes to ground when transmitting. When grounded, transmits (connected to 8V

line thru 2.2 kΩ resistance/144 MHz operation)

Ground level :–0.5 V to 0.8 V Input current : Less than 20 mA

(HF/50 MHz bands)

orange

4 BDT Data line for the optional AT-180. yellow

5 BAND

Band voltage output. (Varies with amateur band)

Output voltage : 0 to 8.0 V green

6 ALC ALC voltage input.

Control voltage : –4 to 0 V Input impedance : More than 10 kΩ

blue

7 VSEND

Input/output pin (144 MHz). Goes to ground when transmitting. When grounded, transmits

(connected to 8V

line thru 2.2 kΩ resistance/HF•50 MHz operation)

Ground level :–0.5 V to 0.8 V Input current : Less than 20 mA

(144 MHz band)

purple

8 13.8 V 13.8 V output when power is ON. Output current : Max. 1 A gray

9 TKEY Key line for the AT-180. white

10 FSKK

RTTY keying input. Connected in parallel to the [RTTY] jack.

Ground level :–0.5 to 0.8 V Input current : Less than 10 mA

black

11 MOD Modulator input.

Input impedance :10 kΩ Input level :Approx. 100 mV rms

pink

12 AF

AF detector output. Fixed, regardless of [AF] position.

Output impedance : 4.7 kΩ Output level : 100 to 350 mV rms

light blue

13 SQLS

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

light green

Rear panel

view

1234

8765

10 11 12

Color refers to the cable strands of the supplied cable.

ACC 1

ACC 2

➀ FSKK ➄ AF ➁ GND ➅ SQLS

➂ HSEND ➆ 13.8 V ➃ MOD ➇ ALC

➀ 8 V ➄ ALC ➁ GND ➅ VSEND

➂ HSEND ➆ 13.8 V ➃ BAND

1122334

8877665

10 11 12

PANEL DESCRIPTION

■ Function display

q NARROW/WIDE FILTER INDICATORS

➥ “ã” appears when selecting AM narrow or FM

narrow modes.

➥ When installing an optional narrow ﬁlter, narrow

mode can be selected in CW, RTTY and SSB modes.

• When the SSB wide ﬁlter is installed, “ç” appears

during wide mode selection.

w MODE INDICATORS

Show the operating mode.

e PROGRAMMABLE/1 MHz TUNING STEP

INDICATORS

➥➌a appears when the programmable tuning step

is selected.

➥➌b appears when the 1 MHz tuning step is

selected.

r SPLIT INDICATOR

Shows that the split frequency function is activated.

t FREQUENCY READOUT

Shows the operating frequency.

•“C” appears in place of the 1 Hz digit when the call chan- nel is selected.

y DUPLEX INDICATORS

➥ “DUP+” appears during plus duplex operation. ➥ “DUP–” appears during minus duplex operation.

u BLANK INDICATOR

Shows that the displayed memory channel is not programmed.

• This indicator appears both in VFO and memory modes.

i VFO/MEMORY INDICATORS

VFO A or B appears when VFO mode is selected; MEMO appears when memory mode is selected.

o SELECT INDICATOR

Shows that the displayed memory channel is designated as a select memory channel.

!0 MEMORY CHANNEL NUMBER READOUT

Shows the selected memory channel number.

!1 DOT MATRIX INDICATORS

These alphanumeric readouts show a variety of information such as current functions of the “F” keys [F1] to [F3], memory channel names, set mode items, etc. See p. 68 for an overview of these indicators.

!2 METER READOUTS

➥ Functions as an S-meter while receiving. ➥ Functions as a power, ALC or SWR meter while

transmitting.

Note: The SWR meter does not function in the 144 MHz band.

!3 FUNCTION INDICATORS

➥ “NB” appears when the noise blanker is activat-

ed.

➥ “VOX” appears when the VOX function is select-

ed.

➥ “F-BK” appears when full break-in operation is

selected and only “BK” appears when semi break-in operation is selected.

➥ “COM” appears when the speech compressor is

activated.

➥ “FAGC” appears when the fast AGC function is

selected.

!4 DSP INDICATORS

Appear when the optional DSP unit is installed and activated.

N W R SPL

LSB

DSP

NB VOX F-BK COM F

VFO A

DUP

VFO B MEMO

AGC

ALC SWR PO

1 1.5 2 3 5

53792040

∞

60dB

USB CW RTTY

AM WFM TSQL

BLANK

ANF

qw r

SPL

A/B

A=B

• MICROPHONE CONNECTOR

PANEL DESCRIPTION

■ Microphone (HM-103)

➊ UP/DOWN SWITCHES [UP]/[DN]

Change the operating frequency.

• Push and hold to change the frequency continuously.

• Tuning step is 50 Hz when no TS indicator appears.

➋ LOCK SWITCH [LOCK]

Locks the [UP]/[DN] switches.

➌ PTT SWITCH [PTT]

Push and hold to transmit; release to receive.

TECHNICAL INFORMATION

PIN NO. FUNCTION DESCRIPTION

1 +8 V DC output Max. 10 mA

Frequency up Ground

Frequency down Ground through 470 Ω

Squelch open “LOW” level

Squelch closed “HIGH” level

➃ PTT

➅ Microphone input

➁ Frequency up/down

➆ GND

➀ +8 V DC output

➇ Squelch switch

➄ GND (microphone ground)

➂ AF output

Rear panel view

1 2345 678

• HM-103 SCHEMATIC DIAGRAM

4700p

10µ

0.33µ

MICROPHONE

MIC ELEMENT

2.2k

470

DOWN UP

PTT

RECEIVE TRANSMIT

MICROPHONE CABLE

MICROPHONE PLUG

12345678

Caution: DO NOT short pin 1 to ground as

this can damage the internal 8 V regulator.

➊

LOCK

DN UP

OFF ON

➋

➌

INSTALLATION AND CONNECTIONS

■ Unpacking

After unpacking, immediately report any damage to the delivering carrier or dealer. Keep the shipping cartons.

For a description and a diagram of accessory equipment included with the IC-706MKIIG, see UNPACKING on p. ii of this manual.

■ 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.

For best results, connect a heavy gauge wire or strap to a long earth-sunk copper rod. Make the distance between the GROUND terminal and ground as short as possible.

■ Antenna

Select antenna(s), such as a well-matched 50 Ω antenna, and feedline. The transmission line should be a coaxial cable. 1.5 : 1 or better of Voltage Standing Wave Ratio (VSWR) is recommended for your required band. Of course, the transmission line should be a coaxial cable.

CAUTION: Protect your transceiver from lightning

using a lightning arrestor.

RWARNING: NEVER connect the [GND] ter-

minal to a gas or electric pipe, since the connection could cause an explosion or electric shock.

30 mm

10 mm (soft solder)

10 mm

1–2 mm

solder solder

Soft solder

Coupling ring

PL-259 CONNECTOR INSTALLATION EXAMPLE

➀➂

➃

➁

Slide the coupling ring down. Strip the cable jacket and soft solder.

Slide the connector body on and solder it.

Screw the coupling ring onto the connector body.

Strip the cable as shown at left. Soft solder the center conductor.

(10 mm ≈

⁄8 in)

;

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 transistors. In this case, an optional 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-706MKIIG has an SWR meter to monitor the antenna SWR continuously.

;;

To raise the stand:

With the transceiver upside down, pull the stand towards the rear panel and then upwards, as illustrated below.

INSTALLATION AND CONNECTIONS

■ Installation

D Single body mounting D Stand

*CAUTION: Non-supplied screws (longer than 8 mm)

may damage the internal units.

MB-62 (optional)

Supplied with the MB-62*

Pull back

then up

D Front panel separation

D Front panel mounting

➀ While pulling the panel release button towards you,

slide the front panel to the right (ﬁg. 1).

➁ Attach the optional OPC-581 to the main body and

tighten the supplied screw as in ﬁg. 2.

➂ Attach the other end of the OPC-581 to the

detached front panel as in ﬁg. 3.

➀ Attach the MB-63 to a ﬂat surface using the two

supplied screws (ﬁg. 1).

➁ Fix the detached front panel to the MB-63 as illus-

trated in ﬁg. 2.

Be careful of the orientation of the MB-63, otherwise, the front panel may become attached in the opposite direction.

fig. 1

fig. 2

fig. 3

fig. 1

fig. 2

INSTALLATION AND CONNECTIONS

■ Required connections

DC 13.8V

EXT SP

MIC

KEY

TUNER

ANT 1

ANT 2

GND

HF/VHF/UHF TRANSCEIVER

i706MK™G

RIT/ SUB

MENU F-1 F-2 F-3

MODE

DISPLAY

LOCK

M-CH

PHONES

TUNER/CALL

P.AMP/ATT

POWER

SHIFT

RF/SQL

BAND

MICROPHONE (p. 8)

HF/50 MHz ANTENNA

RTTY TERMINAL UNIT

(p. 35)

2 m ANTENNA

PS-85

GROUND

(p. 9)

HM-103

See p. 13 for details.

CW KEY (p. 33)

Use the heaviest gauge wire or strap available and make the connection as short as possible.

Grounding prevents electrical shocks, TVI and other problems.

INSTALLATION AND CONNECTIONS

■ Advanced connections

DC 13.8V

EXT SP

MIC

KEY

TUNER

ANT 1

ANT 2

GND

OPC-589 (p. 65)

DESKTOP (p. 64) MICROPHONE

SPEAKER

Selectable with the [PHONE/SPEAKER] switch on the back of the front panel.

ACC SOCKET (p. 6)

REMOTE

(p. 45)

Used for computer control and transceive.

DATA JACK

(p. 37)

6-pin mini DIN jack to connect to a TNC, etc. for packet operation.

AH-3

(p. 14)

AH-2b

COAX ANTENNA SWITCH

EXTERNAL SPEAKER (p. 65)

HEADPHONES

SP-21

When using a 50 MHz antenna separately since the AH-3 can only be used for the HF bands.

HF/VHF/UHF TRANSCEIVER

i706MK™G

RIT/ SUB

MENU F-1 F-2 F-3

MODE

DISPLAY

LOCK

M-CH

PHONES

TUNER/CALL

P.AMP/ATT

POWER

SHIFT

RF/SQL

BAND

CONNECTING THE PS-125 / PS-85 DC POWER SUPPLY

PS-125 / PS-85

Connect to an AC outlet using the supplied AC cable.

DC power cable

DC power socket

CONNECTING A NON-ICOM DC POWER SUPPLY (For Europe versions)

Transceiver

DC power

socket

To non-Icom power supply

[GND]

OPC-639

CONNECTING A NON-ICOM DC POWER SUPPLY

Transceiver

DC power socket

To AC outlet

Supplied DC power cable

13.8 V

Black

30 A fuses

Red

20 A

INSTALLATION AND CONNECTIONS

■ Power supply connections

Use the optional PS-125 / PS-85 DC POWER SUPPLY when operating the IC-706MKIIG with AC power. Refer to the diagram below for connection.

CAUTION: Before connecting the DC power

cable, check the following important items. Make 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 : positive (+) terminal Black : negative (–) terminal

Grommet

CONNECTING A VEHICLE BATTERY

NEVER

connect to

a 24 V battery.

Note: Use terminals for

the cable connections.

Crimp

Solder

Supplied DC power cable

red

black

12 V battery

Note: When using the PS-125, the IC706MKIIG Europe version complies with EMC directives even if the OPC-639 is not used.

INSTALLATION AND CONNECTIONS

■ External antenna tuners and linear ampliﬁer

AH-4

ANT 1

Transceiver

Coaxial cable

(from the AH-4)

To the AH-2b or an antenna element

CONNECTING THE AH-4

The AH-4 can be used for the HF bands and 50 MHz band only.

CONNECTING THE AT-180

Ground

HF to 6 m antenna

[TRANSCEIVER]

[ANT 1] [ACC] [ACC]AT-180

ACC cable supplied with the AT-180

Coaxial cable supplied with the AT-180

IC-706

one of two connectors

ACC-1 REMOTE

INPUT-1 ANT1

ANT

Mini-plug cable

ACC cable

7-pin side

AC outlet (220–240 V)

IC-PW1

GND

ACC REMOTE

Transceiver

Coaxial cable

To an antenna

OPC-599 conversion cable

CONNECTING THE IC-PW1

Note:

• Turn the IC-706MKIIG’s power OFF when connecting the AT180, otherwise, the CPU may malfunction and the AT-180 may not function properly.

• The OPC-742 is required when using

both the AT-180 and a 2

m linear ampliﬁer.

Do not connect [ANT 2] to the AT-180. When using an HF to 2 m wide antenna, use a duplexer between the AT-180 and antenna since 2 m signals do not pass through the AT-180.

[ANT 1]

Transceiver

Duplexer

HF to 2 m antenna

AT-180

[ANT 2]

FREQUENCY SETTING

■ When ﬁrst applying power (CPU resetting)

Before ﬁrst applying power, make sure all connections required for your system are complete by referring to section 2. Then, reset the transceiver using the following procedure.

➀ Make sure the transceiver power is OFF. ➁ While pushing [Y] and [Z], push [POWER] to turn

power ON.

• The internal CPU is reset.

• The transceiver displays as shown at right when reset-

ting is complete.

D M1 display selection

If you can’t ﬁgure out how to return to the M1 display: While pushing [MENU], turn power ON.

■ Initial settings

After resetting the transceiver, set controls and switches as shown in the diagram below.

Note: Resetting clears all programmed contents in

memory channels and returns all initial set mode and quick set mode contents to their default values.

BLANK

VFO A

5379204060dB

USB

SPL

A/B

A=B

The transceiver displays its initial frequency and mode.

[POWER]

[Y]

[Z]

PO 5

[AF]: Max. CCW

[RF/SQL]: Max. CCW

[LOCK]: OFF (indicator light out)

[POWER]: OFF

[SHIFT]: Center

[P.AMP/ATT]: OFF (indicator lights out)

[TUNER/CALL]: OFF (indicator lights out)

[RIT/SUB]: OFF (indicator lights out)

CCW: counterclockwise

Turn power ON, then check the display. If any of the following indicators appear, turn them OFF as follows:

• Tuning step indicators,

, (SSB, CW or RTTY):

Push [TS].

• MHz tuning step indicator, Z, (FM, WFM or AM): Push [TS].

• 1 Hz frequency readout (SSB, CW or RTTY): Push and hold [TS].

• Memory mode indicator, MEMO: Use [(F-3)V/M] in the M2 display (p. 68).

• Split indicator, ä: Use [(F-1)SPL] in the M1 display (p. 68).

FREQUENCY SETTING

■ VFO description

VFO is an abbreviation of Variable Frequency Oscillator, and traditionally refers to an oscillator. The IC-706MKIIG’s VFO can store a frequency and an operating mode.

You can call up a desired frequency to a VFO with the memo pad-read switch (p. 42) or with the memory transfer switch (p. 42). You can also change the frequency with the main dial and select an operating mode with the [MODE] switch or call up previously accessed frequency and modes with the band stacking register (p. 19).

The IC-706MKIIG has two VFOs, specially suited for split frequency operation. The VFOs are called VFO A and VFO B. You can use the desired VFO to call up a

frequency and operating mode for operation.

VFO A

USB

SPL

A/B

A=B

VFO

MODE

SWITCH

MEMORY

CHANNEL

DIAL

MEMO PAD

28.025 MHz

7.001 MHz

21.295 MHz

BAND

Select

Change

Transfer

• The differences between VFO and memory mode

VFO MODE

Each VFO shows a frequency and operating mode. If the frequency or operating mode is changed, the VFO automatically memorizes 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 appear.

[EXAMPLE]

MEMORY MODE

(pgs. 39–42) 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 memory mode.

When a memory channel is selected from another memory channel or VFO mode, the memorized frequency and operating mode appear.

[EXAMPLE]

VFO A

USB

VFO A

USB

VFO is selected.

The frequency is changed.

MEMO

VFO A

USB

VFO is selected again.

Changed frequency (14.123 MHz) appears. Changed frequency (14.123 MHz) does not appear and

memorised frequency (14.100 MHz) appears instead.

USB

Memory mode is selected.

USB

Memory channel 1 is selected.

The frequency is changed.

MEMO

USB

Memory channel 1 is selected again.

USB

Another memory channel is selected.

FREQUENCY SETTING

• Programmable tuning steps

Programmable tuning steps are available to suit your operating requirements. These tuning steps are:

• Independently selectable for each mode

• Selectable from 0.01 (FM/WFM/AM only), 0.1, 1, 5,

9, 10, 12.5, 15, 20 and 100 kHz

➀ Push [TS] one or more times until the programma-

ble tuning step indicator, “Z,” appears above the 1 kHz digit.

• Rotating the main dial changes the frequency according to the set tuning step.

➁ Push [TS] for 2 sec. while the programmable tun-

ing step indicator appears to enter the tuning step selection mode.

• Rotate DIAL appears.

➂ Rotate the main dial to set the desired tuning step.

• Change the mode and select tuning steps for other modes, if desired.

➃ Push [TS] to exit the tuning step selection mode. ➄ Rotate the main dial to change the frequency

according to the set tuning step.

• Band selection

All HF ham bands, the 50 MHz band, the 144 MHz band and a general coverage receiver band are included in the IC-706MKIIG.

Push [

(Y)BAND]/[(Z)BAND] to select the desired

band.

• Pushing [(Y)BAND]/[(Z)BAND] continuously scrolls through the available bands.

Note: The band stacking register can also be used to select bands. Refer to p. 19.

USB

LSB

■ Frequency setting

Programmable tuning step indicator

10 kHz tuning step is selected for USB operation.

VFO A

537920401060dB

USB

M1 A/B A=B

DIAL

SPL

Rotate

• 1 Hz and 10 Hz tuning steps

When neither the quick tuning step or programmable tuning step, “Z,” appear, rotating the main dial changes the frequency in increments of 1 or 10 Hz. These tuning steps are only available in SSB, CW and RTTY modes.

➀ Select SSB, CW or RTTY mode if necessary. ➁ Push [TS] for 2 sec. to toggle between the 1 and

10 Hz step settings.

• 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 main dial changes the frequency in 10 Hz steps.

Rotating the main dial changes the frequency in 1 Hz steps.

Push

for 2 sec.

VFO A

USB

VFO A

USB

FREQUENCY SETTING

• 1 MHz quick tuning step

The quick tuning step function allows you to change the frequency in 1 MHz steps when rotating the main dial. This function is only available in FM, WFM and AM modes.

➀ Select FM, WFM or AM mode if necessary. ➁ Push [TS] momentarily to toggle between the 1

MHz tuning step and the programmable tuning step.

•“Z” appears above the 1 MHz indicator when the 1 MHz tuning step is selected.

• When the 1 MHz tuning step is selected, slow rotation of the main dial changes the frequency in 1 MHz steps and fast rotation of the main dial changes the frequency in 5 MHz steps.

Quick tuning step indicator

Rotating the main dial changes the frequency in 1 MHz steps.

[TS] SWITCH FLOW CHART

SSB/CW/RTTY modes Any mode FM/WFM/AM modes

USB

10 Hz tuning

USB

1 Hz tuning

momentarily momentarily

momentarily

2 sec.2 sec.

2 sec.

1 MHz tuning

USB

Programmable step tuning (100 Hz –100 kHz)

Selectable for each mode.

USB

Rotate DIAL

• Sub dial function

The sub dial function allows you to change the operating frequency using the [M-CH] control. This gives you more control in tuning since the [M-CH] knob is detented—each click changes the frequency according to the set tuning step. This function is always available in FM, WFM and AM modes. However, in SSB, CW and RTTY modes, the set mode item “Sub dial function,” must be set to “FrEq.”

➀ Push [RIT/SUB] to turn the sub dial function ON.

• The [SUB] indicator lights green; if it lights red, the RIT function is activated—sub dial function must be set in initial set mode in this case.

➁ Rotate [M-CH] to change the operating frequency

according to the set tuning steps.

➂ Push [RIT/SUB] again to turn the function OFF.

• The [SUB] indicator turns off.

[SUB] switch

Indicator lights green while the sub dial function is activated.

[M-CH] control

RIT/ SUB

FREQUENCY SETTING

• Quick band change function

The quick band change function automatically stores the last frequency and mode used for each band in a band stacking register. This is convenient for contest operation, etc. The tables below show the quick band change default settings for each band.

➀ Select S3.

• Push [DISPLAY] when M or G is displayed.

• Push [MENU] twice to select

S3.

➁ Push [F-1]–[F-3] to select a band stacking register.

• The default settings for [F-1]–[F-3] are 7, 144 and 430 MHz bands, respectively.

➂ To change the settings for [F-1]–[F-3] from their

defaults, push [F-1]–[F-3] for 1 sec. one or more times to until the desired band appears in the display above the corresponding switch.

• The last-used frequency and mode for the selected band are displayed.

*General refers to the general coverage receiver (

GEN in

the display) and the range varies according to version.

** 1.83000 MHz

for Italy version (#10,#20).

■ Mode selection

The following modes are available in the IC706MKIIG:

SSB (LSB/USB), CW, CW-å (CW reverse), FM, WFM (receive only), AM, RTTY and åRTTY (RTTY reverse).

To select the desired mode of operation push [MODE] one or more times, then push [MODE] for 2 sec., if necessary. See the diagram at right for the order of selection.

• The selected mode is indicated in the function display.

Note: If a desired mode cannot be selected, it may be hidden using Initial Set mode (p. 50).

OPERATING MODE SELECTION

MODE

Push

momentarily

MODE

Push

for 2 sec.

USB LSB

CW CWå

RTTY åRTTY

FM WFM AM

BAND FREQUENCY MODE

18 MHz 18.15000 MHz USB

21 MHz 21.30000 MHz USB

24 MHz 24.95000 MHz USB

28 MHz 28.60000 MHz USB

50 MHz 50.10000 MHz USB

144 MHz 145.00000 MHz FM

BAND FREQUENCY MODE

1.9 MHz

1.91000 MHz**

3.5 MHz 3.56000 MHz LSB

7 MHz 7.06000 MHz LSB

10 MHz 10.13000 MHz CW

14 MHz 14.10000 MHz USB

General* 15.10000 MHz USB

BLANK

VFO A

5379204060dB

USB

144

430

Display shows the default bands for the quick band change function.

PO 5

BLANK

VFO A

5379204060dB

USB

GEN

144

Display shows [F-2] has been changed from its default of the 50 MHz band to the general receiver band.

PO 5

430 MHz 433.00000 MHz FM

RECEIVE AND TRANSMIT

The IF shift function electronically changes 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 15 Hz steps in SSB/CW/RTTY modes and up to ±250 Hz in 3 Hz steps in CW-ã/RTTY-ã modes. The IF shift is not available in FM and AM modes.

➀ Adjust the [SHIFT] control for a minimum interfer-

ence signal level.

• The audio tone may be changed while the IF shift is in use.

➁ Set the shift control to its center position when

there is no interference.

• Graphic display

The IF shift is displayed graphically (for about 1 sec.) each time the shift control is rotated.

M-CH M-CH M-CHSHIFT SHIFT SHIFT

Shifts low Center Shifts high

D RIT function

The RIT (Receive Incremental Tuning) function compensates for off-frequencies of communicating stations. The function shifts the receive frequency up to ±9.99 kHz in 10 Hz steps without moving the transmit frequency. The [SUB/RIT] switch in Initial Set Mode must be set to RIT mode in advance (p. 51).

➀ Push [RIT].

• The [RIT] indicator lights red.

➁ Rotate the [M-CH] control to cancel the off-fre-

quencies.

• The transmit frequency is not shifted.

➂ To cancel the RIT function, push [RIT] again.

• The [RIT] switch indicator goes out.

• Calculate function

The shift frequency of the RIT function can be added/subtracted to the displayed frequency.

While the RIT indicator is lit, push and hold [RIT] for 2 sec.

Note: The RIT function is not available in FM, WFM or AM modes regardless of the Initial Set mode setting (p. 51).

[RIT] switch

Indicator lights red while RIT function is activated.

Push for 2 sec.

[M-CH] control

USB

VFO A

5379204060dB

USB

D IF shift function

■ Functions for receive

+ 52 hidden pages