Icom HF/VHF/UHF ALL MODE TRANSCEIVER, iC-706MKTMG Optional AH-4AUTOMATIC Antenna Tuner operation

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RECEIVE AND TRANSMIT 4

DOptional AH-4AUTOMATIC ANTENNA TUNER operation

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.

AH-4 setting example:

For mobile operation

Optional AH-2b antenna element

AH-4 operation

Tuning is required for each frequency. Be sure to re-tune the antenna before transmitting when you change the frequency—even slightly.

➀Set the desired frequency in an HF band.

•The AH-4 will not operate on frequencies outside of ham bands.

USB

For outdoor operation

Long wire

RWARNING: HIGH VOLTAGE!

NEVER touch the antenna element while tuning or transmitting.

NEVER operate the AH-4 without an antenna wire. The tuner and transceiver will be damaged.

NEVER operate the AH-4 when it is ungrounded.

➁Push and hold [TUNER] for 2 sec.

•The [TUNER] light ﬂashes and “CW” appears while tun- ing.

Push [TUNER] for 2 sec.

CW

➂The [TUNER] light lights constantly when tuning is complete.

•When the connected wire cannot be tuned, the [TUNER] light goes out, the AH-4 is bypassed and the antenna wire is connected to the antenna connector on the transceiver directly.

Transmitting before tuning may damage the trans- ceiver. Note that the AH-4 cannot tune when using a 1⁄2 λ long wire or multiple of the operating frequency.

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

➃To bypass the AH-4 manually, push [TUNER].

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]” oper- ation and activates ﬁrst transmission on the new fre- quency. This function is turned ON in initial set mode, item 13 (p. 54).

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Contents I706MKG Word Definition Rwarning PrecautionsTable of Contents Front panel Panel Description0MAIN Dial Tension Latch @2PREAMP/ATTENUATOR Switch P.AMP/ATT 2LOCK Switch LockFunction switches Function p VOX Function pSpeech Compressor p BREAK-IN pRear and side panels ACC PIN # Name Description Specifications Color When connecting the ACC conversion cable OPC-599ACC Socket Function display 1DOT Matrix Indicators3FUNCTION Indicators 4DSP IndicatorsHM-103 Schematic Diagram ➊UP/DOWN Switches UP/DN ➋LOCK Switch Lock➌PTT Switch PTT Microphone ConnectorGrounding Installation and ConnectionsPL-259 Connector Installation Example UnpackingFront panel separation InstallationSingle body mounting StandRtty Terminal Required connectionsAdvanced connections Connecting a NON-ICOM Power supply connectionsConnecting the PS-85 DC Power Supply Connecting a NON-ICOM DC Power SupplyExternal antenna tuners and linear ampliﬁer Connecting the AH-4Connecting the AT-180 Connecting the IC-PW1Power OFF Frequency SettingWhen ﬁrst applying power CPU resetting Initial settingsVFO VFO ModeMemory Mode pgs VFO descriptionBand selection Frequency settingProgrammable tuning steps Hz and 10 Hz tuning stepsSub dial function MHz quick tuning stepTS Switch Flow Chart SSB/CW/RTTY modes Any mode FM/WFM/AM modes➁ Push F-1-F-3 to select a band stacking register Mode selectionOperating Mode Selection Quick band change functionRIT function Receive and TransmitFunctions for receive If shift functionPeak meter hold Noise blankerAGC time constant Preamp and attenuatorSimple band scope RF gain and squelchRF/SQL control priority SSB Filter PresettingOptional ﬁlter selection Filter ON/OFFANF Automatic Notch Filter function Ceiver maintains the ON/OFF condition when pushing F-2NRNR Noise Reduction function Functions for transmit Output power and mic gainDMeter function VOX operation Speech compressorOptional AT-180 Automatic Antenna Tuner operation Manual TuningTuner Operation PTT tune function ➂ The Tuner light lights constantly when tuning is completeOptional AH-4AUTOMATIC Antenna Tuner operation AH-4 operationSplit lock function Split frequency operationQuick split function ➀ Select VFO a and set the frequency to 7.057 MHz/CW➄ Push and hold PTT to transmit release PTT to receive Repeater operation➂ Push F-3SCN to toggle tone scan operation on and OFF Tone squelch operationTone scan operation ➅ Communicate in the usual mannerFrequency Duplex Direction One-touch repeater functionAuto repeater function This function automatically activates the repeater setElec KEY Functions for CWConnections for CW CW operationCW pitch control CW reverse modeDElectronic CW keyer Quick SET Mode Setting the electronic keyerConnections for Rtty FSK Functions for RttyConnections for Afsk Rtty FSK operation Presetting for RttyRtty Afsk operation Data socket Adjusting the transmit signal output from the TNCPacket operation Connections for packetSpot measurement Measuring SWRPlot measurement Memory clearing Memory and Scan OperationMemory channels Memory channel selectionProgramming in memory mode Programming in VFO modeMemory/call programming Editing programming memory names Frequency transferringMemory names Calling up memory names➀ Select the S1 display Memo padsWriting frequencies and operating modes into memo pads Calling up a frequency from a memo padPreparation Scan typesPriority watch Programmed scan operationMemory scan operation Select memory scan operationCI-V connection example Remote Jack CI-V InformationData format VFO A=B Command TableGeneral SET ModeQuick set mode operation Initial set mode operationQ4 VOX Gain SSB/AM/FM only Quick set mode itemsQ3 VOX Delay SSB/AM/FM only Q2 MIC Gain SSB/AM/FM onlyQ5 Anti VOX SSB/AM/FM only Initial set mode items RF/SQL SQL/AUTO/RFSQL DUP HF duplex offset Quick Split quick split functionSplit Lock split lock SPL Offset split offsetScan Resume scan resume AM NB Noise blanker in AM modePWR on CHK Power on check Auto Rptr auto repeaterVsend SEL ACC socket output 29 9600 Mode Data socket speedTune Strt auto tuner start PTT Tune PTT tune functionCI-V TRN CI-V transceive LVL Spch S-level speechCI-V Addres CI-V address CI-V Baud CI-V data rateCleaning MaintenanceFuse replacement Memory backupPower Supply Receive Problem Possible Cause Solution TroubleshootingTransmit Display Scan Problem Possible Cause Solution Opening the transceiver case Optional INSTALLATIONS/SETTINGSIf ﬁlters DOperation InstallationS2 S1 B a AT-180 internal switch descriptionPIN no Description Name Top view Internal ViewsBottom view Options SP-21EXTERNAL Speaker SP-7EXTERNAL SpeakerSP-10EXTERNAL Speaker SP-12EXTERNAL Speaker SP-20EXTERNAL SpeakerSpecifications Indication Description No. Indication + power onPower OFF then on to exit initial set mode Menu GuideMenu Display SSB/AM/FM mode CW mode Rtty modeMode Display For 2 secCount on us