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Icom IC-R20 instruction manual Supplied Accessories

Models: IC-R20

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SUPPLIED ACCESSORIES

q w

e

r

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qAntenna ………………………………………………………1

wBelt clip (MB-98) …………………………………………1 set eBattery spacer ………………………………………………1

rHand strap …………………………………………………1

tBattery pack* (BP-206) ……………………………………1

yAC adaptor*(BC-149A/D) …………………………………1

(The shape of the BC-149A and BC-149D are different.) *Not supplied with some versions.

OPERATING THEORY

Electromagnetic radiation which has frequencies of 20,000 Hz (20 kHz*) and above is called radio frequency (RF) energy because it is useful in radio transmissions. The IC- R20 receives RF energy from 0.150 MHz* to 3304.999 MHz and converts it into audio frequency (AF) energy which in turn actuates a loudspeaker to create sound waves. AF energy is in the range of 20 to 20,000 Hz.

*kHz is an abbreviation of kilohertz or 1000 hertz, MHz is abbreviation of megahertz or 1,000,000 hertz, where hertz is a unit of frequency.

OPERATING NOTES

The IC-R20 may receive its own oscillated frequency, result- ing in no reception or only noise reception, on some frequen- cies.

The IC-R20 may receive interference from extremely strong signals on different frequencies or when using an external high-gain antenna.

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Icom IC-R20 instruction manual Supplied Accessories

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 dialFrequency can be directly set via numeral keys Using the keypadEditting MHz to 1260.240 MHz Receive mode selection Lock functionSetting audio volume When a signal is receivedBasic Operation ReceivingMonitor function Squelch level settingPush and hold SQL to monitor the operating frequency Attenuator function RF gainDuplex operation SettingRotate 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 characterAvailable characters Selecting memory/bank name IndicationDication 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 pTo start the scan, release Mode Scan Select VFO mode with VFO MHzFull/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 types Priority WatchAbout 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 channel0Push Dualwatch to cancel the watch and scan VFO scan watch qSelect memory modeWhile scanning memory/bank channels Tone/DTCS squelch operation Comfortable ReceivingPush 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 scanExpanded set mode ON/OFF SET ModeGeneral Expanded set mode items 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 baud rate CI-V addressCI-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 functionData cloning Cloning using a personal computerReceiver shows following indications Auto power-off function Cloning errorIC recorder Playing back recorded contentRecording a received audio Playback speed setting Recording set mode Quality settingAutomatic recording Erasing recorded audioREC Same time, but cannot erase each track independentlyPartial reset Command table Control CommandData 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 MHzChannels Murs channels Other communications in the USAHF CB Citizens Band channels General aviation frequencies Wireless MicrophonesCable TV IRC Other communications- other countries LPD Low Power Device channels Unit MHzPMR446 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 y2After clicking Finish, the dialog appears as below For Microsoft WindowsFound 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