Icom I706MKTMG Instruction Manual
Icom I706MKTMG Instruction Manual

Icom I706MKTMG Instruction Manual

Hf/vhf/uhf all mode transceiver
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INSTRUCTION MANUAL
HF/VHF/UHF ALL MODE TRANSCEIVER
i706MK™G
This device complies with Part 15 of the FCC rules. Operation is sub-
ject 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.

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Summary of Contents for Icom I706MKTMG

  • Page 1 INSTRUCTION MANUAL HF/VHF/UHF ALL MODE TRANSCEIVER i706MK™G This device complies with Part 15 of the FCC rules. Operation is sub- ject 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.
  • Page 2: Important

    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 author- ity to operate this transceiver under FCC regulations. This instruction...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS IMPORTANT ... i PRECAUTIONS ... i EXPLICIT DEFINITIONS ... i TABLE OF CONTENTS ... ii UNPACKING ... ii 1 PANEL DESCRIPTION ... 1– 8 I Front panel ... I Function switches ... I Rear and side panels ... I Function display ...
  • Page 4: Panel Description

    PANEL DESCRIPTION I Front panel RF/SQL POWER P.AMP/ATT TUNER/CALL RIT/ M-CH SHIFT PHONES 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;...
  • Page 5 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 is installed (p.
  • Page 6: I Function Switches

    PANEL DESCRIPTION I Function switches D M1 FUNCTIONS MENU 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.
  • Page 7 VOX FUNCTION (p. 26) Toggles the VOX function ON and OFF. • The [VOX GAIN] and [ANTI VOX] are avail- able 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.
  • Page 8: I Rear And Side Panels

    PANEL DESCRIPTION I Rear and side panels ANT 1 ANT 2 q GROUND TERMINAL [GND] (p. 9) Connect this terminal to a ground to prevent electri- cal shocks, TVI, BCI and other problems. w ANTENNA CONNECTORS [ANT 1], [ANT 2] (p. 11) Accept a 50 Ω...
  • Page 9: Technical Information

    !3 BEEP/SIDETONE CONTROL [BEEP/SIDETONE] Adjusts the beep tone and CW side tone audio lev- els. TECHNICAL INFORMATION • ACC SOCKET PIN # NAME Regulated 8 V output. Connects to ground. Input/output pin (HF/50 MHz). Goes to ground when transmitting. HSEND When grounded, transmits line thru 2.2 kΩ...
  • Page 10: I Function Display

    PANEL DESCRIPTION I 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.
  • Page 11: Panel Description ..................................... 1

    I Microphone (HM-103) – LOCK — – 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. TECHNICAL INFORMATION • MICROPHONE CONNECTOR Rear panel view 1 2345 678 •...
  • Page 12: Installation And Connections

    INSTALLATION AND CONNECTIONS I Unpacking After unpacking, immediately report any damage to the delivering carrier or dealer. Keep the shipping car- tons. I Grounding To prevent electrical shock, television interference (TVI), broadcast interference (BCI) and other prob- lems, ground the transceiver through the GROUND terminal on the rear panel.
  • Page 13: I Installation

    I Installation D Single body mounting MB-62 (optional) Supplied with the MB-62* *CAUTION: Non-supplied screws (longer than 8 mm) may damage the internal units. D Front panel separation ➀ While pulling the panel release button towards you, slide the front panel to the right (fig. 1). ➁...
  • Page 14: I Required Connections

    INSTALLATION AND CONNECTIONS I Required connections POWER P.AMP/ATT RIT/ TUNER/CALL M-CH PHONES HF/50 MHz ANTENNA ANT 1 ANT 2 GROUND (p. 9) Use the heaviest gauge wire or strap available and make the connection as short as possible. Grounding prevents electrical shocks, problems.
  • Page 15: I Advanced Connections

    I Advanced connections POWER P.AMP/ATT TUNER/CALL HEADPHONES PHONES SPEAKER Selectable with the [PHONE/SPEAKER] switch on the back of the front panel. DATA JACK (p. 37) COAX ANTENNA 6-pin mini DIN jack to connect to a SWITCH TNC, etc. for packet operation. ANT 1 When using a 50 MHz antenna...
  • Page 16: I Power Supply Connections

    DC POWER SUPPLY 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. Black : negative (–) terminal PS-125 / PS-85 Connect to an AC outlet using the supplied AC cable.
  • Page 17: Installation And Connections .......... 9

    I External antenna tuners and linear amplifier CONNECTING THE AH-4 Coaxial cable (from the AH-4) ANT 1 Transceiver CONNECTING THE AT-180 Coaxial cable supplied with the AT-180 [ANT 1] IC-706 Note: • Turn the IC-706MKIIG’s power OFF when connecting the AT- 180, otherwise, the CPU may malfunction and the AT-180 may not function properly.
  • Page 18: Frequency Setting

    FREQUENCY SETTING I 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 fol- lowing procedure. Note: Resetting clears all programmed contents in memory channels and returns all initial set mode and quick set mode contents to their default values.
  • Page 19: I Vfo Description

    I 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.
  • Page 20: I Frequency Setting

    FREQUENCY SETTING I Frequency setting • 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 [ BAND]/[ BAND] to select the desired band. •...
  • Page 21 • 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...
  • Page 22: I Mode Selection

    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.
  • Page 23: Receive And Transmit

    I Functions for receive D IF shift function The IF shift function electronically changes the pass- band 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...
  • Page 24 RECEIVE AND TRANSMIT D Noise blanker The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. This function is not effective for FM modes or for non pulse- type noise. If you don’t want to use the noise blanker for AM communications, the “AM noise blanker”...
  • Page 25 D RF gain and squelch The IC-706MKIIG uses the same control, [RF/SQL], to adjust one of 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 gain item in initial set mode (p.
  • Page 26 RECEIVE AND TRANSMIT D Optional filter selection Two optional filters can be installed in the IC- 706MKIIG. Narrow filters help reject interference from adjacent signals and obtain good selectivity. Wide filters provide improved audio for SSB opera- tion when no interfering signals are present. Consult the table below to select a filter most suitable for your operating needs.
  • Page 27 I DSP Functions (may require an optional unit depending on version—see p. 61) D ANF (Automatic Notch Filter) function This function automatically attenuates beat tones, tuning signals, etc., even if they are moving. The automatic notch filter functions in SSB, FM and AM modes.
  • Page 28: I Functions For Transmit

    RECEIVE AND TRANSMIT I Functions for transmit D Output power and mic gain • Setting output power ➀ Push [DISPLAY] for 2 sec. to select quick set mode. ➁ Push [MENU] one or more times to select Q1 RF POWER. ➂...
  • Page 29 D Speech compressor The IC-706MKIIG has a built-in, low distortion speech compressor circuit. This circuit increases your average talk power in SSB mode and is espe- cially useful for DX’ing when the receiving station is having difficulty copying your signal. ➀...
  • Page 30 RECEIVE AND TRANSMIT D Optional AT-180 AUTOMATIC ANTENNA TUNER The AT-180 automatic antenna tuner matches the IC- 706MKIIG 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).
  • Page 31 D Optional AH-4 AUTOMATIC ANTENNA TUNER The AH-4 matches the IC-706MKIIG 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.
  • Page 32: I Split Frequency Operation

    RECEIVE AND TRANSMIT I Split frequency operation Split frequency operation allows you to transmit and receive on two different frequencies. Split frequency operation uses 2 frequencies, one in VFO A and the other in VFO 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).
  • Page 33 D Repeater operation A repeater amplifies received signals and retransmits them at a different frequency. When using a repeater, the transmit frequency is shifted from the receive fre- quency by an offset frequency. A repeater can be accessed using split frequency operation with the shift frequency set to the repeater’s offset frequency.
  • Page 34: I Tone Squelch Operation

    RECEIVE AND TRANSMIT I Tone squelch operation Tone squelch operation is a method of communica- tions using selective calling. Only received signals having a matching tone will open the squelch. Before communicating using tone squelch, all members of your party must agree on the tone squelch frequency to use.
  • Page 35: I One-Touch Repeater

    I One-touch repeater function This function allows you to set repeater operation with the push of one switch. ➀ Push [ BAND]/[ BAND] to select the 28 MHz band. ➁ Rotate [DIAL] to select the operating frequency. ➂ Push [MODE] one or more times to select FM. ➃...
  • Page 36: I Functions For Cw

    RECEIVE AND TRANSMIT I Functions for CW D Connections for CW Rear panel For no break-in operation: Connect an external switch such [ACC] as a foot switch; or use the RTTY SEND terminal for all 9 10 11 bands. (See p. 35.) 144/430 MHz 1 2 3 HF/50 MHz...
  • Page 37 D CW pitch control The received CW audio pitch and monitored CW audio pitch can be adjusted to suit your preferences (300 to 900 Hz) without changing the operating fre- quency. ➀ Push [MODE] one or more times to select CW mode.
  • Page 38: I Functions For Rtty

    RECEIVE AND TRANSMIT I Functions for RTTY D Connections for RTTY (FSK) Rear panel Rear panel view 9 10 11 12 5 6 7 1 2 3 D Connections for AFSK Rear panel view 9 10 11 12 5 6 7 1 2 3 4 2-conductor ˝...
  • Page 39 D RTTY (FSK) operation ➀ Connect a terminal unit as at left. ➁ Select RTTY (or åRTTY—see bottom of page) mode with [MODE]. ➂ Select the desired FSK tone/shift frequencies and keying polarity as below. ➃ Set the desired frequency with the main dial. 1/4] in the M4 display when critical setting is •...
  • Page 40: I Packet Operation

    RECEIVE AND TRANSMIT I Packet operation D Connections for packet DATA IN PTTP DATA Rear panel D Data socket Rear panel view D Adjusting the transmit signal output from the TNC NOTE: For packet operation the transceiver can be set to one of two data speeds: 1200 bps or 9600 bps.
  • Page 41: I Swr

    I SWR The IC-706MKIIG has a built-in circuit for measuring antenna SWR while in SSB mode—no external equip- ment or special adjustments are necessary. D Measuring SWR The IC-706MKIIG can measure SWR in 2 ways: (A) Spot measurement; or (B) Plot measurement. (A) Spot measurement ➀...
  • Page 42: Memory And Scan Operation

    MEMORY AND SCAN OPERATION I Memory channels The transceiver has 105 memory channels (plus 2 call channels). Memory mode is useful for quickly chang- ing to often-used frequencies. All 105 memory channels are tuneable which means the programmed frequency can be tuned temporarily with the main dial, etc., in memory mode.
  • Page 43: I Memory/Call Programming

    I Memory/call programming • Programming in VFO mode ➀ Select M2 functions. • Push [DISPLAY] 1 or 2 times to select M. • Push [MENU] one or more times to select the M2 func- tions. ➁ Set the desired frequency and operating mode in VFO mode.
  • Page 44: I Frequency Transferring

    MEMORY AND SCAN OPERATION I Frequency transferring The frequency and operating mode can be transferred from memory mode to VFO mode. ➀ Select VFO mode with [ play. ➁ Select a memory channel with [M-CH]. • Select memory mode to confirm the memory channel’s contents, if desired;...
  • Page 45: I Memo Pads

    I Memo pads The transceiver has a memo pad function to store fre- quency and operating mode for easy write and recall. The memo pads are separate from memory channels. The default number of memo pads is 5, however, this can be increased to 10 in initial set mode if desired (p.
  • Page 46: I Scan Types

    MEMORY AND SCAN OPERATION I Scan types PROGRAMMED SCAN Repeatedly scans between two scan edge frequencies (scan edge memory channels 1A and 1B). Scan Scan edge 1A or 1B Jump This scan operates in VFO mode. MEMORY SCAN Repeatedly scans all programmed memory channels. S (select) Mch 2 Mch 3...
  • Page 47: I Programmed Scan Operation

    I Programmed scan operation ➀ Select VFO mode. ➁ Select the desired operating mode. • The operating mode can also be changed while scan- ning. ➂ Set [SQL] open or closed. • See page a left for squelch condition. ➃ Select S2, then push [ SCN] to start the scan.
  • Page 48: Remote Jack (Ci-V) Information

    RS-232C port. The Icom Communication interface-V (CI-V) controls the follow- ing functions of the transceiver. Up to four Icom CI-V transceivers or receivers can be connected to a personal computer equipped with an RS-232C port. See p. 55 for setting the CI-V condition using initial set mode.
  • Page 49 COMMAND TABLE Description — Send frequency data Send mode data — Read band edge frequencies — Read display frequency — Read display mode — Set frequency data Set LSB Set USB Set AM Set CW Set RTTY Set FM Set WFM —...
  • Page 50: Set Mode

    SET MODE I General Set mode is used for programming infrequently changed values or conditions of functions. The IC- 706MKIIG has 2 separate set modes: quick set mode and initial set mode. D Quick set mode operation ➀ While power is ON, push [DISPLAY] for 2 sec. •...
  • Page 51: I Quick Set Mode Items

    I Quick set mode items Q1 RF POWER (all modes) This item adjusts the RF output power. The RF out- put power can be adjusted from L, 1 to 9 and H for indication, however, it can be adjusted continuously. Q2 MIC GAIN (SSB/AM/FM only) This item adjusts microphone gain from 1 to 10 for...
  • Page 52 SET MODE Q4 CW PADDLE This item adjusts the CW paddle type. Four selec- tions are available. • n : normal (for electronic keyer use) • r : reverse (for electronic keyer use) • buG : When using the electronic key, key down produces a “dash,”...
  • Page 53: I Initial Set Mode Items

    Q8 RPTR-T SCN (repeater tone scan) During repeater operation, you can detect the tone frequency necessary to open a repeater (see p. 30). Q8 T-SQL SCN (tone squelch tone scan) During tone squelch operation, you can detect the tone frequency necessary to communicate using tone squelch (see p.
  • Page 54 SET MODE 6 AUTO OFF (auto power OFF) The auto power OFF function can be used to auto- matically turn the transceiver OFF after a specified time of operation. This item can be set to 30 min., 60 min., 90 min., 120 min., or OFF. 7 RF/SQL (SQL/AUTO/RF•SQL) The [RF/SQL] control can be set as the squelch con-...
  • Page 55 12 QUICK SPLIT (quick split function) When this item is set to ON, pushing [SPL] for 2 sec. sets the undisplayed VFO frequency to the displayed VFO frequency plus the split offset or duplex offset, and activates split operation. 13 SPLIT LOCK (split lock) When this item is ON the main dial can be used to adjust the transmit frequency (XFC) even while the...
  • Page 56: Scan Speed

    SET MODE 20 AUTO RPTR When this item is set to “on 1”, the tone encoder is not set when the auto repeater is activated; when set to “on 2” the auto repeater function also sets the tone encoder on. 21 SCAN RESUME This item sets the scan resume function ON or OFF.
  • Page 57 27 A-TUNE STRT (auto tuner start) The optional AT-180 ANTENNA TUNER matic 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.
  • Page 58 S-meter level. 34 CI-V ADDRES To distinguish equipment, each CI-V transceiver has its own Icom standard address in hexadecimal code. The IC-706MKIIG’s address is 4EH. When 2 or more IC-706MKIIG’s are connected to an optional CT-17...
  • Page 59: Maintenance

    I 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. Caution: Disconnect the DC power cable from the transceiver when changing a fuse. The IC-706MKIIG has 2 types of fuses installed for transceiver protection.
  • Page 60: Troubleshooting

    Receive signal is distor- ted with strong signals. If you are unable to locate the cause of a problem or solve it through the use of this chart, contact your nearest Icom Dealer or Service Center. POSSIBLE CAUSE power cable improperly connected.
  • Page 61 PROBLEM POSSIBLE CAUSE Transmitting is impossi- The operating frequency is not set to ble. a ham band. Output power is too low. Power is set to a lower power than maximum. Microphone gain is set too low. The antenna is not connected properly. The antenna feed line is cut or shorted.
  • Page 62: Optional Installations/Settings

    OPTIONAL INSTALLATIONS/SETTINGS I Opening the transceiver case To remove the transceiver case unscrew the 10 screws (5 in the top panel and 5 in the bottom panel) as shown in the diagram below. I UT-102 VOICE SYNTHESIZER UNIT The UT-102 announces the accessed band’s fre- quency, mode, etc.
  • Page 63: I Cr-282 High - Stability Crystal Unit

    I CR-282 HIGH STABILITY CRYSTAL UNIT By installing the CR-282, the total frequency stability of the transceiver will be improved. ➀ Remove the bottom cover as shown on the oppo- site page. ➁ Remove the 5 screws and 2 flat cables holding the PLL unit in place.
  • Page 64: Carrying Handle

    OPTIONAL INSTALLATIONS/SETTINGS I UT-106 DSP RECEIVER UNIT D Installation ➀ Open the transceiver case as shown on p. 59. ➁ Remove the 4-pin connector (P251) from J1413 on the MAIN unit (top side) and plug it into J1 of the UT-106 on the PLL unit (bottom side).
  • Page 65: I At-180 Internal Switch Description

    I 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. ➀ Remove the top cover of the AT-180. ➁ Set the tuner switches to the desired positions according to the table below.
  • Page 66: Internal Views

    INTERNAL VIEWS D 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. 430 MHz Tx power adj. 144 MHz Tx power adj. 50 MHz Tx power adj.
  • Page 67: Options

    IC-PW1 HF + 50 MHz 1 kW LINEAR AMPLIFIER AH-4 HF AUTOMATIC ANTENNA TUNER Specially designed to tune a long wire antenna for portable or mobile HF/50 MHz operation. The “PTT tune” function pro- vides simple operation. • Input power rating: 150 W PS-85 DC POWER SUPPLY Light weight switching regulator system...
  • Page 68 External speakers suitable for mobile oper- ation. SP-12: Slim-type; 8 Ω/3 W SP-10: Compact-type; 4 Ω/5 W CT-16 SATELLITE INTERFACE UNIT Easy tuning when connecting another Icom VHF transceiver for instant satellite com- munications. OPC-589 MICROPHONE ADAPTER CABLE Conversion between 8-pin modular and 8- pin metal connector for using a desktop microphone with the IC-706MKIIG.
  • Page 69: Specifications

    I GENERAL • Frequency coverage : Receive 30 kHz – 199.999999 MHz* 400–470.000 MHz* Transmit 1.800 – 1.99999 MHz* 3.500 – 3.9999 MHz* 7.000 – 7.300 MHz* 10.100 – 10.150 MHz 14.000 – 14.350 MHz 18.068 – 18.168 MHz 21.000 – 21.450 MHz 24.890 –...
  • Page 70: Menu Guide

    MENU GUIDE + power ON LOCK Initial set mode MENU No. Indication MENU Power OFF then ON to exit initial set mode. Description No. Indication Mode availability Confirmation beeps Band edge beeps Display backlighting Key backlighting Auto power OFF function RF gain/squelch control Sub dial RIT function Optional filter 1...
  • Page 71 (in memory mode) MENU MODE DISPLAY Quick set mode SSB/AM/FM mode MENU SSB mode only; FM mode only/tone squelch ON. (when split MENU DISPLAY is ON) DISPLAY (SSB/AM) (CW) DISPLAY (RTTY) MENU (FM) DISPLAY For 2 sec. CW mode FM mode only; FM mode only/tone encoder ON;...
  • Page 72 Count on us! A-5564H-1EX-r Printed in Japan 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan Copyright © 2001 by Icom Inc.
  • Page 73 Conditions •In combination with PS-125 •When connected to a power supply via OPC-639 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/CE, and that any applicable Essential Test Suite measurements have been performed.
  • Page 74: Installation Notes

    IC-706MKIIG #04 ,#14 (Spain) < Intended Country of Use > IC-706MKIIG #10, #20 (Italy) < Intended Country of Use > Count on us! A-6045H-1EU © 2001 Icom Inc. 0.7 m 29 m Printed in Japan...
  • Page 75 • Attach the ferrite bead making a loop with the cable as shown in the diagram at below left. • Fasten the ferrite bead and speaker cable with the supplied cable fastener. 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan Cable fastener pull A-6045H-2EU Count on us! Printed in Japan © 2001 Icom Inc.

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