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INSTRUCTION MANUAL

iR20

COMMUNICATIONS RECEIVER

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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Summary of Contents for IC-R20

Page 1: ...he 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 M...

Page 2: ...ted according to version External power supply operation 1250 memory channels with 26 banks available 200 auto write and 50 scan edge channels are included Built in bar antenna Dualwatch operation IMP...

Page 3: ...eceiver NEVER connect the receiver to a power source using re verse polarity This will damage the receiver NEVER expose the receiver to rain snow or any liquids The receiver may be damaged NEVER opera...

Page 4: ...ives 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...

Page 5: ...escription 26 Memory channel programming 26 Memory bank setting 27 Memory bank selection 28 Programming memory bank name 29 Selecting memory bank name indication 30 Copying memory contents 31 Memory c...

Page 6: ...sure to observe the correct polarity Keep battery the contacts clean It s a good idea to clean the battery terminals once a week D Belt clip Conveniently attaches to your belt Attach the belt clip us...

Page 7: ...s from dust and moisture For your information Third party antennas may in crease receiver performance D Charging the battery qInstall the battery pack BP 206 wPlug the AC adaptor into an AC outlet eIn...

Page 8: ...C via the optional OPC 1382 CLONING CABLE for Data Audio cloning tEXTERNAL DC IN CONNECTOR DC p 9 Connects an AC adaptor or an optional cigarette lighter cable for both charging the installed re charg...

Page 9: ...toggle between single band and dualwatch operation p 24 Clears numeric key input p 15 Returns to previous operating condition while setting frequency or memory channel or while in set mode Cancels the...

Page 10: ...t 1 for frequency input memory channel selection etc Push for 1 sec to trade the volume control L DIAL Y Z and tuning control R DIAL functions p 23 appears when the Y Z keys function as a volume contr...

Page 11: ...as a skip frequency while scanning p 39 4 MEMORY NAME KEY 6 M N Inputs digit 6 for frequency input memory channel selection etc Push for 1 sec to turn the memory name indi cation ON and OFF p 30 5 AF...

Page 12: ...tor function ON and OFF during normal operation p 19 1 SKIP RF GAIN KEY RF GAIN Push to select the track for recorded audio p 64 Push and hold to skip the recorded audio p 64 Push for 1 sec to enter t...

Page 13: ...duplex DUP appears when minus semi duplex repeater operation is selected eSIGNAL SQUELCH INDICATORS TSQL appears while the tone squelch function is in use p 46 DTCS appears while the DTCS squelch fun...

Page 14: ...selected WX appears when weather channel is selected Available for the USA version only and TV indi cations appear for single band operation only oSIGNAL STRENGTH INDICATOR Shows the receivng signals...

Page 15: ...observe the correct polarity Keep the battery contacts clean to avoid rust or poor con tact It s a good idea to clean the battery terminals once a week D D Battery pack installation q Remove the batte...

Page 16: ...r optional cigarette lighter cable only when charg ing the battery pack BP 206 NEVER use other manufac ture s chargers CAUTION BE SURE to disconnect the CP 18A E from the cigarette lighter socket when...

Page 17: ...D D Rapid charging with the BC 156 The optional BC 156 provides rapid charging of battery packs Charging periods 2 5 hours w BP 206 CAUTION Shorten or remove the telescoping antenna be fore charging t...

Page 18: ...or the USA version only qPush MR S MW to select the memory mode PreSet TV or Weather channel in sequence wRotate R DIAL to select the desired channel Only programmed memory channels can be selected En...

Page 19: ...ng R DIAL also selects frequency band Available frequency bands are differ depending on version See the specification for details Some frequency ranges are inhibited for the USA version due to local r...

Page 20: ...FM broadcast band VHF air band 144 MHz band 300 MHz band 1200 MHz band 2400 MHz band Push Rotating while pushing Initial frequencies shown are differ according to version AM MODE AM MODE FM MODE WFM...

Page 21: ...select the desired tuning step tPush 9 TS to return to VFO mode Setting a frequency D D Using the dial qPush VFO MHz to select VFO mode if necessary wSelect the desired frequency band with BAND Or whi...

Page 22: ...ter set tuning steps if necessary See the previ ous page for setting the tuning step 1 2 3 4 5 6 0 7 8 9 LOCK AFC DUALWATCH VFO MHz Pushing VFO MHz omits the entry of 100 kHz and below when you want t...

Page 23: ...tion access use the lock function Push LOCK for 1 sec to turn the lock function ON and OFF appears while the lock function is activated SQL and Y Y Z Z can be used while the lock function is in use wi...

Page 24: ...c level adjustment with a noise pulse count system Push and hold SQL to open the squelch manually tWhen a signal is received Squelch opens and audio is emitted The S meter shows the relative signal st...

Page 25: ...N indicates continuously open setting Monitor function This function is used to listen to weak signals without disturb ing the squelch setting or to open the squelch manually even when mute functions...

Page 26: ...etting a minimum level at which to hear signals for SSB CW modes Push RF GAIN for 1 sec to enter the RF gain set ting condition then rotate R DIAL to select the desired RF gain level Normally this set...

Page 27: ...to select OFFSET FREQ then push 8 SET yRotate R DIAL to set the desired offset frequency within 0 00000 159 99999 MHz range then push 8 SET The tuning step selected in VFO mode is used for setting Pus...

Page 28: ...se type noise when USB LSB or CW mode is selected The ANL Auto matic Noise Limitter function reduces noise components when AM mode is selected See page 22 for setting details NOTE No display indicatio...

Page 29: ...start single sweeping or push for 1 sec to start continuous sweeping Signal conditions strengths appear starting from the center of the range r Rotate R DIAL to set the highlighted cursor to the de s...

Page 30: ...00 AFC DUP DUP FM TSQL TSQL PS PS PRIO PRIO FM 000 000 00 00 FM R DIAL L DIAL DIAL SEL 1 indication indication Frequency Memory channel Audio volume R DIAL Squelch level Scanning direction Set mode it...

Page 31: ...sh DUALWATCH for 1 sec to enter the dualwatch op eration if necessary wWhile pushing and holding SQL rotate L DIAL for upper band squelch adjustment or rotate R DIAL for lower band s squelch adjustmen...

Page 32: ...uency and lower band s frequency A 145 250 438 000 AFC DUP DUP FM TSQL TSQL PS PS PRIO PRIO FM 000 000 00 00 438 000 145 250 DUP DUP FM TSQL TSQL PS PS PRIO PRIO FM 000 000 00 00 MAIN SUB 145 000 433...

Page 33: ...th R DIAL Or set the desired frequency with KEYPAD Set other data e g offset frequency duplex direction tone squelch etc if desired ePush MR S MW for 1 sec to select the select memory write condition...

Page 34: ...channel has already been assigned into a bank the previous rWhile pushing BAND rotate R DIAL to select the de sired bank group from A to Z The bank group can also be selected by pushing BAND sev eral...

Page 35: ...hannels are displayed rTo return to regular memory condition rotate R DIAL while pushing BAND or push BAND several times ATT MODE ANL AFC TSQL FM 145 870 PSKIP DUP A99 Bank initial Bank chanel number...

Page 36: ...desired character The selected character blinks While pushing 6 M N rotate R DIAL to select the character group yWhile pushing BAND rotate R DIAL to move the cur sor to left or right Push BAND to mov...

Page 37: ...R DIAL to select display in dication type from bank name or memory name ATT B GROUP1 MODE ANL AFC TSQL FM 145 700 PSKIP DUP 012 M Ricky MODE ANL AFC TSQL FM 145 700 PSKIP DUP 012 B GROUP1 MODE ANL AF...

Page 38: ...MR S MW for 2 sec at the step w can also be copied the memory contents to VFO In this case the steps e and r are not necessary D Memory memory qSelect the memory channel to be copied Push MR S MW to...

Page 39: ...MW for 1 sec to clear the contents 3 beeps sound The cleared channel changes to blank channel Return to the select memory write condition indicator blinks Push DUALWATCH to exit the select memory wri...

Page 40: ...long beeps sound Displays the original memory channel number automatically and indicator blinks Do not hold MR S MW for more than 2 sec otherwise the memory contents will be copied to VFO ePush 8 SET...

Page 41: ...edly scans all bank channels or selected bank channels The skip scan is also available SKIP SKIP A99 A03 A00 A01 A02 A04 A98 A05 FREQUENCY MEMORY SKIP FUNCTION p 39 Skips unwanted frequencies or chann...

Page 42: ...SCAN Scan pauses when a signal is received Rotate R DIAL to change the scanning direction or resumes manually Push DUALWATCH again to stop the scan About the scanning steps The selected tuning step in...

Page 43: ...R S MW for 1 sec 3 beeps sound The other scan edge channel B 00B to 24B automatically se lected when continuing to push MR S MW after programming yTo program a frequency for the other pair of scan edg...

Page 44: ...when a signal is received Rotate R DIAL to change the scanning direction or resumes manually tTo stop the scan push DUALWATCH IMPORTANT To perform memory or bank scan 2 or more memory bank channels MU...

Page 45: ...to auto memory write channel group 000 199 2 short beeps sound when stored Scan resumes after frequency storing When all channels are stored the scan is canceled auto matically and 1 long beep sounds...

Page 46: ...kipped during VFO scan such as programmed scan SKIP The channel is skipped during memory or bank scan OFF The channel or programmed frequency is scanned dur ing any scan tPush MR S MW for 1 sec to sto...

Page 47: ...h 8 SET rRotate R DIAL to select SCAN PAUSE item then push 8 SET tRotate R DIAL to set the desired scan time to pause from 2 20 sec 2 sec steps and HOLD then push 8 SET 2SEC 20SEC Scan pauses for 2 20...

Page 48: ...et mode selection ON then push 8 SET rRotate R DIAL to select SCAN RESUME item then push 8 SET tRotate R DIAL to set the desired scan resume timer from 0 5 sec 1 sec steps and HOLD 0SEC Scan restarts...

Page 49: ...a blink S This function can be activated when setting the priority watch function ON MEMORY CHANNEL WATCH While operating on a VFO fre quency priority watch checks for a signal on the selected memory...

Page 50: ...set mode and start the watch PRIO indicator appears The receiver checks the memory bank channel s every 5 sec The watch resumes according to the selected scan resume con dition p 41 uPush DUALWATCH to...

Page 51: ...type selection condition iRotate R DIAL to select the desired scan type from ALL BAND and PROG xx xx 0 24 oRelease MODE SCAN to start the VFO scan watch The receiver checks the memory channel s every...

Page 52: ...S Beep tones sound and S blinks for 30 sec rPush DUALWATCH to stop the beeps and blinking man ually S disappears and the pocket beep function is deactivated tTo cancel the tone squelch or DTCS rotate...

Page 53: ...eive interference from adjacent tone frequencies Available DTCS code list 023 025 026 031 032 036 043 047 051 053 125 131 132 134 143 145 152 155 156 162 245 246 251 252 255 261 263 265 266 271 356 36...

Page 54: ...nter set mode wRotate R DIAL to select SET EXPAND item then push 8 SET eRotate R DIAL to turn the expanded set mode ON then push 8 SET rRotate R DIAL to select DTCS POLARITY item then push 8 SET tRota...

Page 55: ...direction rotate R DIAL r When the CTCSS tone frequency or 3 digit DTCS code is matched the squelch opens and the tone frequency or code is temporarily programmed into the selected condi tion such as...

Page 56: ...ode item D D Expanded set mode ON OFF qPush 8 SET for 1 sec to enter set mode wRotate R DIAL to select SET EXPAND item ePush 8 SET to enter SET EXPAND rotate R DIAL to select the expanded set mode ON...

Page 57: ...er p 55 Scope audio output p 56 Duplex direction p 56 Offset frequency p 56 Scan stop beep p 55 Scan resume timer p 55 Tone frequency p 57 DTCS code p 57 DTCS polarity p 57 LCD contrast p 58 Memory ba...

Page 58: ...be set to ON to have a beep tone D D Display backlighting The receiver has display backlighting and function key illumi nation with a 5 sec timer for nighttime operation The back lighting can be turn...

Page 59: ...oise OFF The noise blanker function is turned OFF default ON The noise blanker function is turned ON D D ANL function The ANL Automatic Noise Limitter function reduces noise components when AM is sele...

Page 60: ...t While the key lock function is ON VOLUME and SQL can still be accessed Accessible keys can be set to one of 4 groups POWER and LOCK are also accessible during the lock however these keys are not eff...

Page 61: ...ally turn OFF after a specified period is past 30 min 1 hour 1 5 hours 2 hours BUSY and OFF default can be specified The specified period is retained even when the receiver is turned OFF by the auto p...

Page 62: ...ter the received signal disappears default 2 sec HOLD Scan pauses on the received signal even if it dis appears Rotate R DIAL to resume manually D D Scan stop beep Turns the scan stop beep function ON...

Page 63: ...ore accessing set mode and receiver version The selected tuning step in VFO mode is used for the off set frequency setting D D Duplex direction Sets the duplex direction The displaying frequency shift...

Page 64: ...3 125 131 132 134 143 145 152 155 156 162 245 246 251 252 255 261 263 265 266 271 356 364 365 371 411 412 413 423 431 432 506 516 523 526 532 546 565 606 612 624 054 065 071 072 073 074 114 115 116 12...

Page 65: ...Rotate R DIAL to select next bank and repeat q to e or push DUALWATCH to exit set mode D D LCD contrast The LCD contrast can be adjusted through 15 levels D D Weather alert function Turns weather ale...

Page 66: ...onnected controller or other Icom CI V radio default AUTO 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 f...

Page 67: ...or the FM broadcast band yPush DUALWATCH momentarily to exit set mode NOTE Some noise or spurious may be received when the inter nal bar or earphone cable is used for antenna The supplied or third par...

Page 68: ...oper ated The previously selected used weather channel is checked periodically during standby or while scanning qSelect the desired weather channel wTurn the weather alert function ON in set mode Push...

Page 69: ...CS R20 CLONING SOFTWARE and the optional OPC 1382 CLONING CABLE Consult the CS R20 CLONING SOFTWARE HELP file for details The receiver show following indications CLONE OUT CLONE CLONE IN MODE ANL AFC...

Page 70: ...can be specified The specified period is retained even when the re ceiver is turned OFF by the auto power off function To cancel the function select OFF in step e below qPush 8 SET for 1 sec to enter...

Page 71: ...y to start playing the track ePush ATT when you want to rewind or RF GAIN when you want to skip while playing rPush to stop playing Even you don t push the receiver stops automatically and returns to...

Page 72: ...en push REC rPush DUALWATCH momentarily to exit the recording set mode NOTE The IC recorder can store 32 tracks at the maximum When the 32nd track is recorded the recording function is not available e...

Page 73: ...ct the setting then push REC rPush DUALWATCH momentarily to exit the recording set mode Erasing recorded audio NOTE The IC recorder can erase the all tracks at the same time but cannot erase each trac...

Page 74: ...ailable See left for details IMPORTANT Resetting the receiver CLEARS all memory information and initializes all values in the receiver including TV chan nel skip setting While pushing VFO MHz and MR S...

Page 75: ...mmands Controller IC R20 IC R20 Controller q Preamble code fixed w Receiver s default address e Controller s default address r Command number see table below t Sub command number see table below y BCD...

Page 76: ...69 12 CONTROL COMMAND CT 17 Power supply 9 15VDC RS 232C cable IC R20 to SP CI V Computer Optional BC 25 CI V connection example 3 5 d mm GND I O GND I O 3 5 d mm stereo plug must be used...

Page 77: ...5 21 517 75 22 523 75 23 529 75 24 535 75 25 541 75 26 547 75 CH Freq 27 553 75 28 559 75 29 565 75 30 571 75 31 577 75 32 583 75 33 589 75 34 595 75 35 601 75 36 607 75 37 613 75 38 619 75 39 625 75...

Page 78: ...41 25 55 749 25 56 757 25 57 765 25 58 773 25 59 781 25 60 789 25 61 797 25 62 805 25 63 813 25 64 821 25 65 829 25 66 837 25 67 845 25 68 853 25 69 861 25 CH Freq 21 477 25 22 485 25 23 493 25 24 501...

Page 79: ...860 75 D D Italian channels unit MHz CH Freq A 59 25 B 67 75 C 87 75 D 180 75 E 188 75 F 197 75 G 206 75 H 215 75 H1 222 75 H2 229 75 21 476 75 22 484 75 23 492 75 24 500 75 25 508 75 26 516 75 27 524...

Page 80: ...61 750 23A 157 150 157 150 24 157 200 161 800 25 157 250 161 850 25b 161 850 161 850 26 157 300 161 900 27 157 350 161 950 28 157 400 162 000 28b 162 000 162 000 60 156 025 160 625 61 156 075 160 675...

Page 81: ...7000 MHz 462 7125 MHz 462 7250 MHz 467 7250 MHz CH Frequency 1 151 820 MHz 2 151 880 MHz 3 151 940 MHz 4 154 570 MHz 5 154 600 MHz CH Frequency 1 26 965 MHz 2 26 975 MHz 3 26 985 MHz 4 27 005 MHz 5 2...

Page 82: ...rol Repeaters Primary 156 300 Aircraft to ship safety 156 400 Aircraft to ship commercial 156 425 Aircraft to ship non commercial 156 450 Aircraft to ship commercial 156 625 Aircraft to ship non comme...

Page 83: ...10 433 300 11 433 325 12 433 350 13 433 375 14 433 400 15 433 425 16 433 450 17 433 475 18 433 500 19 433 525 20 433 550 21 433 575 22 433 600 23 433 625 24 433 650 25 433 675 26 433 700 27 433 725 28...

Page 84: ...775 MHz 16 476 800 MHz 17 476 825 MHz 18 476 850 MHz 19 476 875 MHz 20 476 900 MHz D D UHF C R S Citizen Radio Service channels CH Frequency 21 476 925 MHz 22 476 950 MHz 23 476 975 MHz 24 477 000 MH...

Page 85: ...e turned OFF or the beep tone level is too low The operating mode is not selected correctly EXPAND item is set to OFF Program scan edges are not programmed No or only one memory or bank channel is pro...

Page 86: ...BP 206 AF output power at 3 7 V DC 100 mW typical at 10 distortion with an 8 load Ext speaker connector 3 conductor 3 5 d mm 1 8 8 D D RECEIVER Receive system Triple conversion superheterodyne and do...

Page 87: ...ry pack Charging time 2 5 hours An AC adapter is supplied with the charger SP 13 EARPHONE Provides clear receive audio in noisy environments LC 158 CARRYING CASE Helps protect the receiver from scratc...

Page 88: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan A 6353H 1EX Printed in Japan 2004 Icom Inc...

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