Icom IC-R20 Instruction Manual
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Icom IC-R20 Instruction Manual

Icom ic-r20 communication receiver: instruction manual
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INSTRUCTION MANUAL
COMMUNICATIONS RECEIVER
iR20
This device complies with Part 15 of the FCC rules. Operation is sub-
ject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CEL-
LULAR RADIO TELEPHONE SERVICE SIGNALS IS PROHIBITED
UNDER FCC RULES AND FEDERAL LAW.

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  • Page 1 INSTRUCTION MANUAL COMMUNICATIONS RECEIVER iR20 This device complies with Part 15 of the FCC rules. Operation is sub- ject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 2: Important

    We want to take a couple of moments of your time to thank you for making your IC-R20 your radio of choice, and hope you agree with Icom’s philosophy of “technology first.” Many hours of research and development went into the design of your IC-R20.

  • Page 3: Precaution

    Information overheard but not intended for you cannot lawfully be used in any way. For U.S.A. only CAUTION: Changes or modifications to this device, not expressly approved by Icom Inc., could void your authority to operate this device under FCC regulations.

  • Page 4: Supplied Accessories

    *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.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS FOREWORD ... i IMPORTANT ... i EXPLICIT DEFINITIONS ... i PRECAUTION ... ii SUPPLIED ACCESSORIES ... iii OPERATING THEORY ... iii OPERATING NOTES ... iii TABLE OF CONTENTS ... iv QUICK REFERENCE GUIDE ... I–VIII ■ Preparations ... I ■...

  • Page 6: Quick Reference Guide

    QUICK REFERENCE GUIDE ■ Preparations D Batteries installation qRemove the battery cover from the receiver. wFor alkaline battery use, attach the supplied battery spacer. eInstall 3 R6 (AA) size alkaline batteries. • Be sure to observe the correct polarity. Keep the battery contacts clean to avoid rust or poor contact. It’s a good idea to clean the battery terminals once a week.

  • Page 7: Belt Clip

    D Belt clip Conveniently attaches to your belt. Attach the belt clip with the supplied screws using a phillips screwdriver. D Swivel belt clip (Option) The optional swivel belt clip (MB-86) is useful for easy attaching/detaching the receiver to/from the belt. q Attach the stopper with the supplied screws using a phillips screwdriver.
  • Page 8 QUICK REFERENCE GUIDE To remove: r Turn the receiver upside down, and then lift to release the receiver from the belt clip as shown at upper right. D D Antenna Insert the supplied antenna into the antenna connector and screw down the antenna as shown at right.

  • Page 9: Your First Scanning Experience

    ■ Your first scanning experience Now that you have your IC-R20 ready, you are probably ex- cited to start listening. We would like to take you through a few basic operation steps to make your first “Scanning Expe- rience”...
  • Page 10 QUICK REFERENCE GUIDE D Basic operation 1. Turning ON the receiver ➥ Push [POWER] for 1 sec. to turn the power ON. -DUP TSQL MODE 146 010 PSKIP √ 2. Adjusting audio level ➥ Rotate [L-DIAL] (or push [Y Y ]/ [Z Z ]) to set the desired audio level.

  • Page 11: Memory Programming

    • FM, WFM, AM, LSB, USB and CW are available. ■ Memory programming The IC-R20 has a total of 1250 memory channels (including 200 auto write channels and 50 scan edges) for storing often used receive frequency, mode, etc. 1. Setting frequency In VFO mode, set the desired receive frequency mode.

  • Page 12: Programmed Scan Operation

    QUICK REFERENCE GUIDE ■ Programmed scan operation 25 pairs, 50 channels of memories are used for programmed scan operation, that specify a scanning range. The pro- grammed scan scans between “xxA” and “xxB” (xx=00 to 24) frequencies. Therefore, before operating the programmed scan, different frequencies must be programmed into “A”...
  • Page 13 D D Starting scan 1. Select VFO mode. Push [VFO MHz] to select the VFO mode for full, band and programmed scan operation. • Select memory mode by pushing [MR S.MW] for memory or bank scan. 2. Selecting a scanning type While pushing and holding [MODE SCAN], rotate [R-DIAL] DUALWATCH...

  • Page 14: Panel Description

    Adjust audio volume level.* (p. 17) r USB JACK [USB] Connects to a PC using an optional OPC-1382 CABLE transfer the programmed contents between the IC-R20 and the connected PC. KEYPAD t EXTERNAL DC-IN CONNECTOR [DC] (p. 9) Connects an AC adaptor or an optional cigarette lighter cable for both charging the installed re-chargeable battery pack and operating.
  • Page 15 u LEFT DIAL [L-DIAL] ➥ During single band operation, rotate to adjust audio vol- ume level.* (p. 17) ➥ During dualwatch operation, activates as the tuning dial for upper side on the display.* i RIGHT DIAL [R-DIAL] ➥ Rotate to select the operating frequency.* (p. 12) ➥...
  • Page 16 PANEL DESCRIPTION t VFO/MHz KEY [VFO MHz] ➥ Push to select VFO mode. (p. 11) ➥ Push for 1 sec. to toggle between the 1 MHz or 10 MHz tuning steps (p. 14) y MODE/SCAN KEY [MODE SCAN] ➥ Push to select the operating mode (FM, WFM, MODE SCAN AM, USB, LSB, CW).
  • Page 17 !2 TONE SCAN KEY [4 T-SCAN] ➥ Inputs digit ‘4’ for frequency input, memory T SCAN channel selection, etc. ➥ Push for 1 sec. to start a tone scan. (p. 48) !3 FREQUENCY SKIP KEY [5 SKIP] ➥ Inputs digit ‘5’ for frequency input, memory SKIP channel selection, etc.
  • Page 18 PANEL DESCRIPTION !8 TUNING STEP KEY [9 TS] ➥ Inputs digit ‘9’ for frequency input, memory channel selection, etc. ➥ Push for 1 sec. to select the tuning step. (p. 14) !9 LOCK KEY [• LOCK] ➥ Inputs MHz digit for frequency input. (p. 15) LOCK ➥...

  • Page 19: Function Display

    ➥ “ ” appears when the batteries are nearing ex- haustion. • IC-R20 installed the BP-206 must be charged presently, but when it installed alkaline batteries can be operate for a while. ➥ Scrolls while charging the installed BP-206. (p. 8) ➥...
  • Page 20 PANEL DESCRIPTION r ANL/NB INDICATOR (pgs. 21, 52) ➥ “ANL” appears when the ANL (Automatic Noise Limitter) function is in use. The ANL function is available only for AM mode. ➥ “NB” appears when the noise blanker function is in use. The noise blanker function is available while in LSB/USB/CW modes.

  • Page 21: Battery Installation/Charging

    BATTERY INSTALLATION/CHARGING ■ Battery installation Make sure receiver power is turned OFF before installing or replacing the batteries. qRemove the battery cover from the receiver. wFor alkaline battery use, attach the supplied battery spacer. eInstall 3 R6 (AA) size alkaline batteries. •...

  • Page 22: Caution

    [DC] jack AC adaptor BC-149A/D Turn power OFF. Charging periods: 8 hours (w/BP-206) R R WARNING!: NEVER attempt to charge any other bat- teries. Because the IC-R20 can charge the BP-206 only. to cigarette lighter socket to AC outlet...
  • Page 23 D D CP-18A/E fuse replacement If the fuse blows or the receiver stops functioning while oper- ating with the optional CP-18A/E, find the source of the prob- lem if possible, and replace the damaged fuse with a new rated one (FGB 5 A) as shown below. Fuse 5 A Recommendation: Charge the supplied battery pack for a maximum of...

  • Page 24: Frequency And Channel Setting

    FREQUENCY AND CHANNEL SETTING ■ Mode selection D D VFO mode VFO mode is used for the desired frequency setting within the frequency coverage. ➥ Push [VFO MHz] to select VFO mode. DUALWATCH MAIN/SUB POWER MODE BAND SCAN S.MW DIAL.SEL SWEEP CENTER SCOPE...

  • Page 25: Operating Band Selection

    • Memory mode indication • TV channel indication -DUP TSQL -DUP MODE MODE 146 100 PSKIP √ √ µ “µ ” and memory channel “TV” indication appears. number appear. • PreSet channel indication • Weather channel indication (USA version only) -DUP TSQL -DUP...
  • Page 26 FREQUENCY AND CHANNEL SETTING • Available frequency bands MODE 1620 AM broadcast band MODE 2425 000 2400 MHz band MODE 1295 000 1200 MHz band MODE MODE 5 000 51 000 HF band 50 MHz band BAND : Push : Rotating while pushing Initial frequencies shown will differ according to version.

  • Page 27: Setting A Tuning Step

    8.33 kHz and 9 kHz, only appear when setting the tuning step for the VHF air band and AM broadcast band, respectively. The following tuning steps are available for the IC-R20. • 0.01 kHz • 0.1 kHz • 1.0 kHz •...
  • Page 28 FREQUENCY AND CHANNEL SETTING D D Using the keypad The frequency can be directly set via numeral keys. • When editing a frequency outside of the fre- quency range, the previously displayed frequency is automatically recalled after editing last digit. qPush [VFO MHz] to select VFO mode, if necessary.

  • Page 29: Receive Mode Selection

    ■ Receive mode selection Receive modes are determined by the physical properties of the radio signals. The receiver has 6 receive modes: FM, WFM, AM, LSB, USB and CW modes. The mode selection is stored independently in each band and memory channels. Typically, AM mode is used for the AM broadcast stations (0.495–1.620 MHz) and VHF air band (118–135.995 MHz), and WFM is used for FM broadcast stations (76–107.9 MHz).

  • Page 30: Basic Operation

    BASIC OPERATION ■ Receiving Make sure charged battery pack (BP-206) or brand new al- kaline batteries are installed (p. 8). q Push [POWER] for 1 sec. to turn power ON. wRotate [L-DIAL] (or push [Y Y ] or [Z Z ]) to set the desired audio level.

  • Page 31: Squelch Level Setting

    ■ Squelch level setting The squelch circuit mutes the received audio signal depend- ing on the signal strength. The receiver has 9 squelch levels, a continuously open setting and an automatic squelch setting. ➥ While pushing and holding [SQL], rotate [R-DIAL] to se- lect the squelch level.

  • Page 32: Attenuator Function

    BASIC OPERATION ■ Attenuator function The attenuator prevents a desired signal from distorting when very strong signals are near the desired frequency or when very strong electric fields, such as from a broadcasting sta- tion, are near your location. The attenuator gain is about 30 ➥...

  • Page 33: Duplex Operation

    ■ Duplex operation Duplex communication uses 2 different frequencies for trans- mitting and receiving. Generally, duplex is used in communi- cation through a repeater, some utility communications, etc. During duplex operation, the transmit station frequency is shifted from the receive station frequency by the offset fre- quency.

  • Page 34: Afc Function

    BASIC OPERATION ■ AFC function The AFC (Automatic Frequency Control) function tunes the displayed frequency automatically when an off-center fre- quency is received. It activates in FM/WFM modes only with single band operation. ➥ Push [0 AFC] to toggle the AFC function ON and OFF. •...

  • Page 35: Band Scope

    ■ Band scope The band scope function allows you to visually check a spec- ified frequency range. Sweep range can be selected from ±14 kHz through ±1400 kHz. q Set the desired frequency as band scope center frequency. w While pushing and holding [2 SWEEP], rotate [R-DIAL] to select the sweep steps, if desired.

  • Page 36: [Dial] Function Assignment

    BASIC OPERATION ■ [DIAL] function assignment The frequency control dial can be traded with an audio volume control dial or [Y Y ]/[Z Z ] keys to suit your preference. ➥ Push [1 DIAL.SEL] for 1 sec. to toggle the dial function from tuning dial and audio volume.

  • Page 37: Dualwatch Operation

    ■ Main band selection ➥ Push [MAIN/SUB] momentarily to select the upper band or lower band as main band (operating band) alternately. 145 250 AFC -DUP 438 000 MAIN/SUB 145 250 438 000 • Operating bands table for dualwatch operation Band A-side B-side Band...

  • Page 38: Setting Audio Volume

    DUALWATCH OPERATION ■ Setting audio volume qPush [DUALWATCH] for 1 sec. to enter the dualwatch op- eration, if necessary wPush and hold [SQL], push [Y Y ] or [Z Z ] to adjust the audio level for the main band. •...

  • Page 39: Memory Channels

    ■ General description The receiver has 1050 memory channels including 50 scan edge memory channels (25 pairs) for storage of often-used frequencies. And a total of 26 memory banks, A to Z are avail- able for usage by group, etc. Up to 100 channels can be as- signed into a bank.

  • Page 40: Memory Bank Setting

    MEMORY CHANNELS ■ Memory bank setting The IC-R20 has a total of 26 banks channels, 000 to 999, are assigned into the desired bank for easy memory management. qPush [MR S.MW] for 1 sec. to select the select memory write condition.

  • Page 41: Memory Bank Selection

    ■ Memory bank selection q Push [MR S.MW] to select memory mode. wWhile pushing [BAND], rotate [R-DIAL] to select the de- sired bank (A to Z) • The bank can also be selected by pushing [BAND] several times. • Only programmed banks are displayed. -DUP MODE 145 870...

  • Page 42: Programming Memory/Bank Name

    MEMORY CHANNELS ■ Programming memory/bank name Each memory channel can be programmed with an alphanu- meric channel name for easy recognition and can be indicated independently by channel. Names can be a maximum of 8 characters. q Push [MR S.MW] to select memory mode. w Rotate [R-DIAL] to select the desired memory channel.

  • Page 43: Selecting Memory/Bank Name Indication

    D D Available characters A B C D E F G H I J K L M N O P Q R S T U V W X Y Z a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 ‰...

  • Page 44: Copying Memory Contents

    MEMORY CHANNELS ■ Copying memory contents This function transfers a memory channel’s contents to VFO (or another memory channel). This is useful when searching for signals around a memory channel frequency and for re- calling the offset frequency, subaudible tone frequency etc. D Memory➪VFO q Select the memory channel to be copied.

  • Page 45: Memory Clearing

    ■ Memory clearing Contents of programmed memories can be cleared (blanked), if desired. qPush [MR S.MW] for 1 sec. to select the select memory write condition. • 1 short and 1 long beeps sound. • “µ µ ” indicator blinks. •...

  • Page 46: Erasing/Transferring Bank Contents

    MEMORY CHANNELS ■ Erasing/transferring bank contents The bank contents of programmed memory channels can be cleared or reassigned to another memory bank. INFORMATION: Even if the memory bank contents are cleared, the memory channel contents still remain pro- grammed. qSelect the desired bank contents to be transferred or erased from the bank.

  • Page 47: Scan Operation

    ■ Scan types Scanning searches for signals automatically and makes it easier to locate new stations for contact or listening purposes. Repeatedly scans all frequen- FULL SCAN (p. 35) cies over the entire band. 3304.999 Some frequency ranges are not scanned according to the Scan frequency coverage of the re- Jump...

  • Page 48: Full/Band/Programmed Scan

    SCAN OPERATION ■ Full/band/programmed scan q Select VFO mode with [VFO MHz]. • Select the desired frequency band with [BAND], if desired. w Set the squelch level. eWhile pushing and holding [MODE SCAN], rotate [R-DIAL] to select the desired scanning type. •...

  • Page 49: Scan Edges Programming

    ■ Scan edges programming Scan edges can be programmed in the same manner as memory channels. Scan edges are programmed into scan edges, 00A/00B to 24A/24B, in memory channels. q Push [VFO MHz] to select VFO mode. w Set the desired frequency: ➥...

  • Page 50: Memory/Bank/All Bank Scan

    SCAN OPERATION ■ Memory/bank/all bank scan q Select memory mode with [MR S.MW]. • Select the desired bank with [BAND] for bank scan. w Set the squelch level. eWhile pushing and holding [MODE SCAN], rotate [R-DIAL] to select the desired scanning type. •...

  • Page 51: Auto-Memory Write Scan

    ■ Auto-memory write scan This scan is useful for searching a specified frequency range and automatically storing busy frequencies into memory channels. The auto-memory write scan is performed with any VFO scan types (ALL, BAND, PROG). q Select VFO mode with [VFO MHz]. wPush and hold [MODE SCAN] to enter scanning type se- lection condition.

  • Page 52: Skip Channel/Frequency Setting

    SCAN OPERATION ■ Skip channel/frequency setting Memory channels can be set to be skipped for memory skip scan. In addition, memory channels can be set to be skipped for both memory skip scan and frequency skip scan. These are useful to speed up the scan interval. q Select a memory channel: ➥...

  • Page 53: Scan Resume Condition

    ■ Scan resume condition D D Scan pause timer The scan pauses when receiving signals according to the scan pause time. It can be set from 2 to 20 sec. or unlimited. q Push [8 SET] for 1 sec. to enter set mode. wRotate [R-DIAL] to select “SET EXPAND,”...
  • Page 54 SCAN OPERATION D D Scan resume timer The scan restarts after the signal disappears according to the resume time. It can be set from 0–5 sec. or unlimited. q Push [8 SET] for 1 sec. to enter set mode. wRotate [R-DIAL] to select “SET EXPAND,” then push [8 SET].

  • Page 55: Priority Watch

    ■ Priority watch types Priority watch checks for signals on the frequency every 5 sec. while operating on a VFO frequency or scanning. The receiver has 3 priority watch types to suit your needs. The watch resumes according to the selected scan resume condition.

  • Page 56: Priority Watch Operation

    PRIORITY WATCH ■ Priority watch operation D D Memory channel watch and memory scan watch q Select VFO mode; then, set an operating frequency. w Set the watching channel(s). For memory channel watch: Select the desired memory channel. For memory scan watch: Select memory mode, or the desired bank group;...
  • Page 57 D D VFO scan watch q Select memory mode. • Select a memory bank, if desired. wPush [MODE SCAN] for 1 sec. to start memory/bank scan, if desired. While scanning memory/bank channels: Starts memory/bank scan first. Memory/bank scan can- not be started after VFO scan is started. e Push [8 SET] for 1 sec.

  • Page 58: Comfortable Receiving

    COMFORTABLE RECEIVING ■ Tone/DTCS squelch operation The tone or DTCS squelch opens only when receiving a sig- nal with the same pre-programmed subaudible tone or DTCS code, respectively. You can silently wait for the specified sig- nal using the same tone. q Set the desired frequency in FM mode.

  • Page 59: Tone Squelch Frequency/Dtcs Code Setting

    ■ Tone squelch frequency/DTCS code setting 88.5 Hz and 023 is set as the default for the tone squelch fre- quency and the DTCS code, respectively. The frequency and code can be selected as desired. q Push [8 SET] for 1 sec. to enter set mode. wRotate [R-DIAL] to select “SET EXPAND,”...

  • Page 60: Dtcs Polarity Setting

    COMFORTABLE RECEIVING ■ DTCS polarity setting As well as the code setting, the polarity setting is also avail- able for the DTCS operation. When a different polarity is set, the DTCS never releases audio mute even when a signal with matched code number is received.

  • Page 61: Tone Scan

    ■ Tone scan By monitoring a signal that is being operated with pocket beep, tone or DTCS squelch function, you can determine the tone frequency or DTCS code necessary to open a squelch. qSet the frequency to be checked for a tone frequency or code.

  • Page 62: Set Mode

    Set mode is used for programming infrequently changed val- ues or conditions of functions. In addition, the IC-R20 has an expanded set mode which is used for programming even more infrequently changed val- ues or conditions of functions. When turning the expanded set mode OFF, only about one third of the set mode items are displayed for simple operation.

  • Page 63: Set Mode Items

    ■ Set mode items The following items are available in the set mode and ex- panded set mode. D D General set mode items • Priority watch (p. 51) ***-SET-MODE-*** ---------------- • Key-touch beep (p. 51) >PRIORITY-WATCH -KEY-TOUCH-BEEP • Beep output level (p. 51) -BEEP-LEVEL -BACKLIGHT •...
  • Page 64 SET MODE D D Priority watch Turn the priority watch or priority beep (priority watch with beep emission capability) ON. • ON : Start priority watch after exiting set mode. • BELL : Emits beeps and blinking “S” indicator when a signal is received on the priority frequency.
  • Page 65 D D Power save The power save function reduces the current drain to con- serve battery power. This power save function can be turned OFF, if desired. In the default setting (“AUTO” selection), the power save func- tion is activated in 1:4 (125 msec.: 500 msec.) nal is received for 5 sec.
  • Page 66 SET MODE D D AM antenna selection This setting is activated only for the AM broadcast band, 0.495–1.620 MHz (differ according to version) reception. • EXT : Use the antenna connected to the antenna con- nector. (default) • BAR : Use the internal bar antenna for AM broadcast band reception.
  • Page 67 D D Dial speed acceleration The dial speed acceleration automatically speeds up the tun- ing dial speed when rotating [R-DIAL] rapidly. • OFF : The dial speed acceleration is turned OFF. • ON : The dial speed acceleration is tuned ON. (default) DIAL-SPEED-UP DIAL-SPEED-UP...
  • Page 68 SET MODE D D Scan pause timer Selects the scan pause time. When receiving signals, the scan pauses according to the scan pause time. • 2–20 : Scan pauses for 2–20 sec. on a received signal, and selected in 2 sec. steps. (default: 10 sec.) •...
  • Page 69 D D Scope audio output Sets the audio output function while scope operation. SCOPE-AF-OUTPUT SCOPE-AF-OUTPUT ---------------- ---------------- >OFF -OFF >ON No audio output while AF output while sweep operation sweep operation The scope audio output is used for finding out the signals while scope function are modulated, unmodulated or beet signal etc.
  • Page 70 SET MODE D D Tone frequency Sets subaudible tone frequency for tone squelch operation. Total of 50 tone frequencies (67.0–254.1 Hz) are available. TONE-FREQ ---------------- --88.5 88.5 Hz setting • Available subaudible tone frequencies 67.0 79.7 94.8 110.9 131.8 69.3 82.5 97.4 114.8...
  • Page 71 D D Memory bank link Sets the linked bank for the bank-link scan. (default: All banks are ON) qRotate [R-DIAL] to select the bank that you want to change setting. BANK-LINK ---------------- >BANK-A:ON -BANK-B:ON -BANK-C:ON -BANK-D:ON -BANK-E:ON -BANK-F:ON wPush [8 SET] for 1 sec. to enter the bank link setting con- dition.
  • Page 72 D D CI-V transceive CI-V transceive operation is possible with the IC-R20 con- nected to an Icom CI-V radio. When “ON” is selected, chang- ing the frequency, operating mode, etc. on the IC-R20 automatically changes those of connected radios and vice versa.

  • Page 73: Other Functions

    ■ Antenna selection The IC-R20 has an internal bar antenna installed for receiving AM broadcast band (0.495–1.620 MHz; differ according to version) signals. In addition, the connected earphone’s cable can be used as an antenna for receiving FM broadcast band (76.000–107.995 MHz;...

  • Page 74: Weather Channel Operation

    OTHER FUNCTIONS ■ Weather channel operation D D Weather channel selection qPush [MR S.MW] several times to select the weather chan- nel group. w Rotate [R-DIAL] to select the desired weather channel. [R-DIAL] S.MW ePush [VFO MHz] to return to VFO mode, or push [MR S.MW] to select other mode to exit the weather channel.

  • Page 75: Data Cloning

    ® 98/Me/2000/XP) using the optional CS- and the optional OPC-1382 CLONING SOFTWARE . Consult the CS-R20 CABLE CLONING SOFTWARE details. IC-R20 OPC-1382 to USB jack to USB port Push to turn power ON. • The receiver shows following indications. Write to receiver...

  • Page 76: Auto Power-Off Function

    146 010 √ ■ Auto power-off function The IC-R20 can be set to automatically turn OFF after a spec- ified period in which no operation is performed. BUSY, 120 min., 90 min., 60 min., 30 min. and OFF can be specified.

  • Page 77: Ic Recorder

    ■ IC recorder The IC-R20 has an IC recorder of up to 32 tracks. The maxi- mum recording length is about 260 minutes. D D Recording a received audio q Push [ REC] momentarily to start recording. • Red LED below the [ REC] lights ON.
  • Page 78 OTHER FUNCTIONS • Playback speed setting The playback speed can be selected from 5 speeds. qPush [■ ] for 1 sec. to enter the playback speed set ≈ ≈ mode. wRotate [R-DIAL] to select the desired playback speed, then push [■ ≈...
  • Page 79 • Automatic recording The IC-R20 has an automatic recording function. When this function is activated, the receiver will record automatically when a receiving signal appears and pause when the signal disappears. This function is very useful when you want to store an uncontinuous signal.

  • Page 80: Partial Reset

    OTHER FUNCTIONS ■ Partial reset If you want to initialize the operating conditions (VFO fre- quency, VFO settings, set mode contents) without clearing the memory contents, a partial resetting function is available for the receiver. ➥ While pushing [VFO MHz], turn the power ON to partially reset the receiver.

  • Page 81: Control Command

    ■ General The IC-R20 can be connected to a PC via the PC’s RS-232C port using an optional CT-17 CI-V LEVEL CONVERTOR allows you to control the receiver from the PC and/or transfer data from the receiver to the PC.
  • Page 82 CONTROL COMMAND CI-V compatible transceiver CI-V compatible transceiver IC-R20 to [SP/CI-V] 3-conductor 3.5(d) mm plug must be used. 3.5(d) mm CI-V connections example Power supply Optional 9–15VDC BC-25 RS-232C CT-17 Computer cable 2-conductor 3.5(d) mm plug...

  • Page 83: Frequency Table

    ■ TV channels Following tables show the channels versus video and audio frequencies depending on each version. D D U.S.A. channels (unit: MHz) Freq. Freq. 59.75 553.75 65.75 559.75 71.75 565.75 81.75 571.75 87.75 577.75 179.75 583.75 185.75 589.75 191.75 595.75 197.75 601.75...
  • Page 84 FREQUENCY TABLE D D China channels Freq. Freq. 56.25 669.75 64.25 677.75 72.25 685.75 83.75 693.75 91.75 701.75 174.75 709.75 182.75 717.75 190.75 725.75 198.75 733.75 206.75 741.75 214.75 749.75 222.75 757.75 477.75 765.75 485.75 773.75 493.75 781.75 501.75 789.75 509.75 797.75 517.75...
  • Page 85 D D Indonesian channels D D Italian channels (unit: MHz) Freq. Freq. 53.75 628.75 60.75 636.75 67.75 644.75 180.75 652.75 187.75 660.75 194.75 668.75 201.75 676.75 208.75 684.75 215.75 692.75 222.75 700.75 229.75 708.75 476.75 716.75 484.75 724.75 492.75 732.75 500.75 740.75 508.75...

  • Page 86: Vhf Marine Channels

    FREQUENCY TABLE ■ VHF marine channels Ship Ship No. Transmit Receive No. Transmit Receive 156.050 160.650 156.050 156.050 156.100 160.700 156.150 160.750 156.150 156.150 156.200 160.800 156.200 156.200 156.250 160.850 156.250 156.250 156.300 156.300 156.350 160.950 156.350 156.350 156.400 156.400 156.450 156.450 156.500...

  • Page 87: Other Communications In The Usa

    ■ Other communications in the USA D D HF CB (Citizens Band) channels Frequency Frequency 26.965 MHz 27.215 MHz 26.975 MHz 27.225 MHz 26.985 MHz 27.255 MHz 27.005 MHz 27.235 MHz 27.015 MHz 27.245 MHz 27.025 MHz 27.265 MHz 27.035 MHz 27.275 MHz 27.055 MHz 27.285 MHz...
  • Page 88 FREQUENCY TABLE D D General aviation frequencies Frequency Description 121.500 Emergencies 122.000 Flight Advisory Service 122.200 Flight Service Stations 122.700 Unicom— Uncontrolled airports 122.725 Unicom— Private airports 122.750 Unicom— Air-to-air communications 122.800 Unicom— Uncontrolled airports 122.900 Search & rescue training, & uncontrolled airports 122.950 Unicom—...

  • Page 89: Other Communications-Other Countries

    ■ Other communications— other countries D D LPD (Low Power Device) channels Frequency Frequency 433.800 433.075 433.825 433.100 433.850 433.125 433.875 433.150 433.900 433.175 433.925 433.200 433.950 433.225 433.975 433.250 434.000 433.275 434.025 433.300 434.050 433.325 434.075 433.350 434.100 433.375 434.125 433.400 434.150...
  • Page 90 FREQUENCY TABLE D D UHF C.R.S (Citizen Radio Service) Frequency 476.425 MHz 476.450 MHz 476.475 MHz 476.500 MHz 476.525 MHz 476.550 MHz 476.575 MHz 476.600 MHz 476.625 MHz 476.650 MHz 476.675 MHz 476.700 MHz 476.725 MHz 476.750 MHz 476.775 MHz 476.800 MHz 476.825 MHz 476.850 MHz...

  • Page 91: Maintenance

    ■ Troubleshooting PROBLEM POSSIBLE CAUSE No power comes on. • The batteries are exhausted. • The battery polarity is reversed. No sound comes from the • Volume level is too low. speaker. • Squelch level is set too tight. • Different tone is selected with tone squelch. Sensitivity is low and only •...

  • Page 92: Specifications

    SPECIFICATIONS D D GENERAL • Frequency coverage 0.150–821.999, 851.000–866.999, 896.000–1304.999, 1305.000–3304.999 France 0.150–29.999, 50.200–51.200, 87.500–108.000, 144.000–146.000, 430.000–440.000, 1240.000–1300.000 Other than above 0.150–1304.999, 1305.000–3304.999 • Number of memory channels : 1250 (incl. 50 scan edges and 200 auto write channels) • Receive modes : FM, AM, WFM, USB, LSB, CW •...

  • Page 93: Options

    ■ Options BC-149 A/D CP-18A/E AC ADAPTOR CABLE WITH DC Allows you to operate the re- Regularly charges the installed ceiver through a 12 V cigarette battery pack (BP-206). lighter socket, and also charges 6 V DC/1 A output. the installed battery pack (BP- Same as supplied one.

  • Page 94: Driver Installation

    USB driver must be installed. Install the USB driver as follows. ■ For Microsoft ® q Connect the IC-R20 to the desired USB port using with the USB cable, OPC-1382. • “Found New Hardware” appears as below. , the w The “Found New Hardware Wizard” will come up as CLONING SOFTWARE below.
  • Page 95 eClick “Search for the best device in these locations,” click “Include the location in the search,” click [Browse] to select the CD drive. Select Select Specifiy rThe wizard starts searching for the driver and shows the dialog below during search. Click Click DRIVER INSTALLATION...
  • Page 96 DRIVER INSTALLATION tAfter the driver is found the “Hardware Installation” dialog y Windows starts installing the USB driver. box appears as below. • Click [Continue Anyway] to start the installation. Click...
  • Page 97 uAfter the installation is completed, click [Finish]. iThe “Found New Hardware Wizard,” will come up again to install the USB serial port driver. o “Hardware Update Wizard” appears as below. Select “Install from a list or specific location (Advanced)” then click [Next>]. Click !0 R epeat step e to y.
  • Page 98 !2 A fter clicking [Finish], the dialog appears as below. • Rebooting the PC is recommended. ■ For Microsoft q Connect the IC-R20 to the desired USB port using with the USB cable, OPC-1382. • “Found New Hardware” appears as below.
  • Page 99 DRIVER INSTALLATION eSelect “Search for a suitable driver for my device (recom- rSelect “CD-ROM drives,” and insert the supplied CD into mended),” then click [Next>]. the CD drive, then click [Next>]. Select Select Click Click...
  • Page 100 DRIVER INSTALLATION tWhen the driver is found, the following dialog is displayed. y After the installation is completed, click [Finish]. Click [Next>] to start the installation. Click Click...
  • Page 101 Click [Finish] to close the screen. • Rebooting the PC is recommended. ■ For Microsoft 98/98SE/Me q Connect the IC-R20 to the desired USB port using with the USB cable, OPC-1382. w The “Add New Hardware Wizard” will come up as below. Click [Next>].
  • Page 102 DRIVER INSTALLATION eSelect “Search for the best driver for your device. (Recom- mended),” then click [Next>]. rSelect “Specify a location,” and insert the supplied CD into the CD drive, click [Browse] to select the CD drive, then click [Next>]. Select Click Select Specifiy...
  • Page 103 tWhen the driver is found, the following dialog is displayed. Click [Next>] to start the installation. Click y After the installation is completed, click [Finish]. Click • Rebooting the PC is recommended. DRIVER INSTALLATION ■ COM port confirmation After the driver installation, confirm the driver availability and the port number are recommended.
  • Page 104 DRIVER INSTALLATION t Click the [Device Manager]. • Device Manager screen appears as below. yClick “ ” of the “Ports (COM & LPT)” to display the usable COM port and the port number. Click uConfirm the USB serial port availability and the COM port number.

  • Page 105: Pocket Guide

    POCKET GUIDE Important operating instructions are summed up in this and the following page for your simple reference. By cutting along the line and folding on the dotted line, it will become a card sized operating guide which can easily be carried in a card case or wallet, etc.
  • Page 107 We Icom Inc. Japan 1-1-32, Kamiminami, Hirano-ku Osaka 547-0003, Japan Declare on our sole responsibility that this equipment complies with the essential requirements of the Radio and Telecommunications Terminal Equipment Directive, 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed.
  • Page 108 ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ A-6353H-1EX-w Printed in Japan 2004 Icom Inc. © 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan...

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