Icom IC-R20 instruction manual Frequency and Channel Setting, Mode selection, VFO mode

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3 FREQUENCY AND CHANNEL SETTING

■Mode selection

DVFO mode

VFO mode is used for the desired frequency setting within the frequency coverage.

➥Push [VFO MHz] to select VFO mode.

• VFO mode indication

DUALWATCH

MAIN/SUB

POWER

					-DUP TSQL	AFC
BAND	VFO	MODE	MR	VFO	MODE FM ANL
	MHz	SCAN	S.MW	MHz	146 560
1	2	3	SCOPE	MHz	146 560
DIAL.SEL	SWEEP	CENTER

T-SCAN	SKIP	M.N		PSKIP
T-SCAN	SKIP	M.N
4	5	6	0 AFC	√
TONE	SET	TS
7	8	9	LOCK
ATT	RF GAIN	IC Recorder
			REC

DMemory mode/PreSet/TV/Weather† channels

Memory mode is used for operation of memory channels which have programmed frequencies. PreSet channels are used for most-often used frequencies for quick recall.

*Appears only when PreSet channels/TV channels are

programmed via the optional CS-R20.

†Available for the USA version only.

qPush [MR S.MW] several times to select the channel type.

•Memory/PreSet/TV /Weather channels can be selected in se- quence

wRotate [R-DIAL]to select the desired channel.

•Only programmed memory channels can be selected.

•Entering keypad directly can be selected the desired memory channel.

•See p. 26 for memory programming details.

What is VFO?

VFO is an abbreviation of Variable Frequency Oscillator. Fre- quencies for receiving are generated and controlled by the VFO.

DUALWATCH MAIN/SUB

	BAND	VFO	MODE
		MHz	SCAN

DIAL.SEL SWEEP CENTER

1 2 3

		• Memory mode indication
POWER
		-DUP TSQL	AFC
MR	MR	MODE FM ANL
S.MW	S.MW	146 100
	S.MW
SCOPE

T-SCAN	SKIP	M.N			PSKIP
4	5	6	0 AFC	√	µ 001
TONE	SET	TS
7	8	9	LOCK
ATT	RF GAIN	IC Recorder
			REC	“µ	” and memory channel
				“µ	” and memory channel

number appear.

11

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Contents IR20 Some frequency bands are inhibited according to version Auto write and 50 scan edge channels are includedMay occur Equipment damage may occurPrecaution Operate this device under FCC regulationsSupplied Accessories Table of Contents Batteries installation Battery pack installationQuick Reference Guide PreparationsBelt clip Swivel belt clip OptionAntenna Third-party antennas may in- crease receiver performanceCharging the battery About default settingYour ﬁrst scanning ExperienceAdjusting audio level Adjusting squelch levelBasic operation Turning on the receiverSetting frequency Receive mode selectionMemory programming Selecting a memory channelProgrammed scan operation Programming scan edges Writing a memory channelSelecting a scan edge channel B Selecting a scan edge channel aStarting scan Select VFO mode Cancelling scanStarting scan Selecting a scanning typePanel Description Front, top and side panelsEPOWER KEY Power ULEFT Dial L-DIALIRIGHT Dial R-DIAL QDUALWATCH/CLEAR KEY DualwatchOr 10 MHz tuning steps p MODE/SCAN KEY Mode ScanVOLUME/DIAL KEY 1 DIAL.SEL VFO/MHz KEY VFO MHzPush for 1 sec. to enter the set mode Inputs digit ‘5’ for frequency input, memoryInputs digit ‘0’ for frequency input, memory Inputs digit ‘8’ for frequency input, memory@2STOP/PLAY ≈ QBATTERY Indicator WDUPLEX Indicators pESIGNAL Squelch Indicators Function displayRANL/NB Indicator pgs TLOCK Indicator pYAFC Indicator p USKIP Indicators pBattery INSTALLATION/CHARGING Battery installationBattery charging Battery cautionRegular charging Charging cautionCP-18A/E fuse replacement Rapid charging with the BC-156Frequency and Channel Setting Mode selectionVFO mode Memory mode/PreSet*/TV*/Weather† channelsOperating band selection 2425 Available frequency bandsSetting a tuning step Setting a frequencyTuning step selection Using the dialUsing the keypad Frequency can be directly set via numeral keysEditting MHz to 1260.240 MHz Receive mode selection Lock functionSetting audio volume When a signal is receivedBasic Operation ReceivingSquelch level setting Monitor functionPush and hold SQL to monitor the operating frequency Attenuator function RF gainSetting Duplex operationRotate R-DIALto select Duplex AFC function NB/ANL functionBand scope Select the sweep steps, if desiredDial function assignment Single band operationMain band selection Band exchange Operating bands table for dualwatch operationSetting audio volume Squelch level setting Lower band’s squelch adjustmentMemory channel contents Memory ChannelsGeneral description Memory channel programmingMemory bank setting Push MR S.MW for 1 sec. to set the channel into the bankMemory bank selection Rotate R-DIALto select the bank channelProgramming memory/bank name Rotate R-DIALto select the desired characterSelecting memory/bank name Indication Available charactersDication type from bank name or memory name Copying memory contents Push MR S.MW for 1 sec. to clear the contents Memory clearingErasing/transferring bank contents Scan Operation Scan typesFull Scan p FREQUENCY/MEMORY Skip Function pSelect VFO mode with VFO MHz To start the scan, release Mode ScanFull/band/programmed scan Scan edges programming Select memory mode with MR S.MW Release Mode Scan to start the selected scanMemory/bank/all bank scan To stop the scan, push DualwatchAuto-memory write scan During auto-memory write scanningRecalling the stored frequencies Clearing the stored frequenciesSkip channel/frequency setting Scan pause timer Push Dualwatch to exit set modeScan resume condition SETScan resume timer Priority Watch Priority watch typesAbout priority beep function Push Dualwatch to exit set mode and start the watch Push Dualwatch to cancel the watchPriority watch operation Select the desired memory channelVFO scan watch qSelect memory mode 0Push Dualwatch to cancel the watch and scanWhile scanning memory/bank channels Comfortable Receiving Tone/DTCS squelch operationPush Dualwatch to stop the beeps and blinking man- ually Tone squelch frequency/DTCS code setting Available Dtcs code listPush 8 SET Available tone frequency listDtcs polarity setting Tone scan Push 4 T-SCANfor 1 sec. to start the tone scanSET Mode Expanded set mode ON/OFFGeneral Set mode items Expanded set mode itemsGeneral set mode items Priority watch Key-touch beepBeep output level Display backlightingPower save Noise blankerANL function AF ﬁlterNo accessible key is available, except Power and LockAM antenna selection FM antenna selectionAuto power OFF DefaultDial speed acceleration Monitor key actionScan pause timer Scan resume timerScan stop beep Turns the scan stop beep function on and OFFScope audio output Offset frequencyDuplex direction Sets the audio output function while scope operationTone frequency Dtcs codeDtcs polarity Available subaudible tone frequenciesLCD contrast can be adjusted through 15 levels Memory bank linkLCD contrast Turns weather alert function on and OFFCI-V address CI-V baud rateCI-V transceive RPush Dualwatch to exit set mode Other FunctionsAntenna selection Selecting antennaTurn the weather alert function OFF in set mode Weather channel operationWeather channel selection Weather alert functionCloning using a personal computer Data cloningReceiver shows following indications Auto power-off function Cloning errorPlaying back recorded content IC recorderRecording a received audio Playback speed setting Recording set mode Quality settingAutomatic recording Erasing recorded audioREC Same time, but cannot erase each track independentlyPartial reset Control Command Command tableData format Control Command CI-V compatible transceiverFrequency Table TV channelsS.A. channels Ccir channelsChina channels NewZealand ChannelsIndonesian channels Italian channelsTaiwan channels FOT channelsVHF marine channels Weather channelsunit MHzOther communications in the USA Channels Murs channelsHF CB Citizens Band channels Wireless Microphones General aviation frequenciesCable TV IRC LPD Low Power Device channels Unit MHz Other communications- other countriesPMR446 channels unit MHz UHF C.R.S Citizen Radio Service channels Maintenance TroubleshootingSpecifications GeneralOptions OptionsDriver Installation For Microsoft Windows XPDriver Installation Windows starts installing the USB driver After the installation is completed, click Finish 0Repeat step e to yFor Microsoft Windows 2After clicking Finish, the dialog appears as belowFound New Hardware Wizard will come up as below. Click Next Select Click Driver Installation For Microsoft Windows 98/98SE/Me Select Click COM port conﬁrmation Click the Device Manager Pocket Guide IR20Release Mode Scan to start scan Declaration Conformity We Icom Inc. Japan#07 France Kamiminami, Hirano-ku, Osaka 547-0003, Japan