Icom HF/VHF/UHF ALL MODE TRANSCEIVER VFO description, Vfo, VFO Mode, Example, Memory Mode pgs

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■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 fre- quency with the main dial and select an operating mode with the [MODE] switch or call up previously accessed frequency and modes with the band stack- ing 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 SETTING 3

frequency and operating mode for operation.

	VFO	Select	MODE
	VFO	Select	SWITCH
			SWITCH
		USB
			Change
			VFO A

		CH
	M1 SPL A/B A=B		DIAL
		Transfer	Transfer
	Transfer
		MEMORY	BAND
	MEMO PAD
		CHANNEL	21.295 MHz
	28.025 MHz	7.001 MHz

• 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 operat- ing mode for that VFO appear.

[EXAMPLE]

USB	VFO is selected.
	VFO A
	CH
USB	The frequency is changed.
USB

VFO A

CH

USB	Memory mode is selected.

MEMO CH

USB	VFO is selected again.

VFO A

CH

MEMORY MODE (pgs. 39–42)

Each memory channel shows a frequency and oper- ating 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 fre- quency and operating mode appear.

[EXAMPLE]

USB	Memory channel 1 is
	selected.
MEMO	CH
USB	The frequency is changed.
USB
MEMO	CH
USB	Another memory channel
	is selected.
MEMO	CH
USB	Memory channel 1 is
	selected again.
MEMO	CH

Changed frequency (14.123 MHz) appears.

Changed frequency (14.123 MHz) does not appear and memorised frequency (14.100 MHz) appears instead.

16

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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