Icom IC-R20 Setting audio volume Squelch level setting, Lower band’s squelch adjustment

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5 DUALWATCH OPERATION

■ Setting audio volume

■ Squelch level setting

qPush [DUALWATCH] for 1 sec. to enter the dualwatch op-				qPush [DUALWATCH] for 1 sec. to enter the dualwatch op-
eration, if necessary				eration, if necessary
wPush and hold [SQL], push [Y] or [Z] to adjust the audio				wWhile pushing and holding [SQL], rotate [L-DIAL]for
level for the main band.				upper band’s squelch adjustment, or rotate [R-DIAL]for
• Pushing and holding either key changes the audio level continu-				lower band’s squelch adjustment.
ously.				• “LEVEL 1” is loose squelch and “LEVEL 9” is tight squelch.
• The display shows the volume level while setting.				• “AUTO” indicates automatic level adjustment with a noise pulse
				count system.
	-DUP TSQL		PS	• “OPEN” indicates continuously open setting.
	145 25000 PRIO000			• “OPEN” indicates continuously open setting.
	145 25000 PRIO000
	FM			[L-DIAL]
	AFC -DUP TSQL		PS	[L-DIAL]	-DUP TSQL		PS
SQL	438 000	00 PRIO		[R-DIAL]	145 250	00 PRIO
SQL			000				000
			000				000
	FM				FM
					AFC -DUP TSQL		PS
			PS		438 000	00 PRIO
			PS	SQL			000
	145 250			SQL			000
			000		FM
			000
	VOL
							PS

Upper band setting	145.250
	145.250
PS	SQUELCH:AUTO

438 000 000

VOL

Lower band setting

While pushing either [Y] or [Z], rotate [L-DIAL]for upper

band’s volume adjustment, or [R-DIAL]for lower band’s volume adjustment.

Upper band setting

PS

438.000

SQUELCH:LEVEL9

Lower band setting

25

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Contents IR20 May occur Some frequency bands are inhibited according to versionAuto write and 50 scan edge channels are included Equipment damage may occurPrecaution Operate this device under FCC regulationsSupplied Accessories Table of Contents Quick Reference Guide Batteries installationBattery pack installation PreparationsBelt clip Swivel belt clip OptionAntenna Third-party antennas may in- crease receiver performanceYour ﬁrst scanning Charging the batteryAbout default setting ExperienceBasic operation Adjusting audio levelAdjusting squelch level Turning on the receiverMemory programming Setting frequencyReceive mode selection Selecting a memory channelSelecting a scan edge channel B Programmed scan operationProgramming scan edges Writing a memory channel Selecting a scan edge channel aStarting scan Starting scan Select VFO modeCancelling scan Selecting a scanning typePanel Description Front, top and side panelsIRIGHT Dial R-DIAL EPOWER KEY PowerULEFT Dial L-DIAL QDUALWATCH/CLEAR KEY DualwatchVOLUME/DIAL KEY 1 DIAL.SEL Or 10 MHz tuning steps pMODE/SCAN KEY Mode Scan VFO/MHz KEY VFO MHzInputs digit ‘0’ for frequency input, memory Push for 1 sec. to enter the set modeInputs digit ‘5’ for frequency input, memory Inputs digit ‘8’ for frequency input, memory@2STOP/PLAY ≈ ESIGNAL Squelch Indicators QBATTERY IndicatorWDUPLEX Indicators p Function displayYAFC Indicator p RANL/NB Indicator pgsTLOCK Indicator p USKIP Indicators pBattery INSTALLATION/CHARGING Battery installationRegular charging Battery chargingBattery caution Charging cautionCP-18A/E fuse replacement Rapid charging with the BC-156VFO mode Frequency and Channel SettingMode selection Memory mode/PreSet*/TV*/Weather† channelsOperating band selection 2425 Available frequency bandsTuning step selection Setting a tuning stepSetting a frequency Using the dialEditting MHz to 1260.240 MHz Using the keypadFrequency can be directly set via numeral keys Receive mode selection Lock functionBasic Operation Setting audio volumeWhen a signal is received ReceivingPush and hold SQL to monitor the operating frequency Squelch level settingMonitor function Attenuator function RF gainRotate R-DIALto select Duplex SettingDuplex operation 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 adjustmentGeneral description Memory channel contentsMemory Channels 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 characterDication type from bank name or memory name Selecting memory/bank name IndicationAvailable characters Copying memory contents Push MR S.MW for 1 sec. to clear the contents Memory clearingErasing/transferring bank contents Full Scan p Scan OperationScan types FREQUENCY/MEMORY Skip Function pFull/band/programmed scan Select VFO mode with VFO MHzTo start the scan, release Mode Scan Scan edges programming Memory/bank/all bank scan Select memory mode with MR S.MWRelease Mode Scan to start the selected scan To stop the scan, push DualwatchRecalling the stored frequencies Auto-memory write scanDuring auto-memory write scanning Clearing the stored frequenciesSkip channel/frequency setting Scan resume condition Scan pause timerPush Dualwatch to exit set mode SETScan resume timer About priority beep function Priority WatchPriority watch types Priority watch operation Push Dualwatch to exit set mode and start the watchPush Dualwatch to cancel the watch Select the desired memory channelWhile scanning memory/bank channels VFO scan watch qSelect memory mode0Push Dualwatch to cancel the watch and scan Push Dualwatch to stop the beeps and blinking man- ually Comfortable ReceivingTone/DTCS squelch operation Push 8 SET Tone squelch frequency/DTCS code settingAvailable Dtcs code list Available tone frequency listDtcs polarity setting Tone scan Push 4 T-SCANfor 1 sec. to start the tone scanGeneral SET ModeExpanded set mode ON/OFF General set mode items Set mode itemsExpanded set mode items Beep output level Priority watchKey-touch beep Display backlightingANL function Power saveNoise blanker AF ﬁlterAM antenna selection No accessible key is available, exceptPower and Lock FM antenna selectionDial speed acceleration Auto power OFFDefault Monitor key actionScan stop beep Scan pause timerScan resume timer Turns the scan stop beep function on and OFFDuplex direction Scope audio outputOffset frequency Sets the audio output function while scope operationDtcs polarity Tone frequencyDtcs code Available subaudible tone frequenciesLCD contrast LCD contrast can be adjusted through 15 levelsMemory bank link Turns weather alert function on and OFFCI-V transceive CI-V addressCI-V baud rate Antenna selection RPush Dualwatch to exit set modeOther Functions Selecting antennaWeather channel selection Turn the weather alert function OFF in set modeWeather channel operation Weather alert functionReceiver shows following indications Cloning using a personal computerData cloning Auto power-off function Cloning errorRecording a received audio Playing back recorded contentIC recorder Playback speed setting Recording set mode Quality settingREC Automatic recordingErasing recorded audio Same time, but cannot erase each track independentlyPartial reset Data format Control CommandCommand table Control Command CI-V compatible transceiverS.A. channels Frequency TableTV channels Ccir channelsZealand China channelsNew ChannelsTaiwan channels Indonesian channelsItalian channels FOT channelsVHF marine channels Weather channelsunit MHzHF CB Citizens Band channels Other communications in the USAChannels Murs channels Cable TV IRC Wireless MicrophonesGeneral aviation frequencies PMR446 channels unit MHz LPD Low Power Device channels Unit MHzOther communications- other countries 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 yFound New Hardware Wizard will come up as below. Click Next For Microsoft Windows2After clicking Finish, the dialog appears as below 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