User manual ICOM IC-703

INSTRUCTION MANUAL HF/50 MHz ALL MODE TRANSCEIVER i703 FOREWORD Thank We understand that you have a choice of many different radios in the market place. We want to take a couple of moments of your time to thank you for making the IC-703 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-703. IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before attempting to operate the transceiver. SAVE THIS INSTRUCTION MANUAL. This manual contains important safety and operating instructions for the IC-703. FEATURES DSP features (AF DSP; UT-106 DSP UNIT required some version) All mode capability covering 160­6 m 9.0­15.87 V operation Compact with detachable front panel ±0.5 ppm of high frequency stability Built in antenna tuner Simple band scope function EXPLICIT DEFINITIONS WORD R WARNING CAUTION NOTE DEFINITION Personal injury, fire hazard or electric shock may occur. Equipment damage may occur. If disregarded, inconvenience only. No risk or personal injury, fire or electric shock. PRECAUTION R WARNING RF EXPOSURE! This device emits Radio Frequency (RF) energy. Extreme caution should be observed when operating this device. If you have any questions regarding RF exposure and safety standards please refer to the Federal Communications Commission Office of Engineering and Technology's report on Evaluating Compliance with FCC Guidelines for Human Radio Frequency Electromagnetic Fields (OET Bulletin 65). R WARNING HIGH VOLTAGE! NEVER attach an antenna or internal antenna connector during transmission. This may result in an electrical shock or burn. R NEVER apply AC to the [DC13.8V] receptacle on the transceiver rear panel. This could cause a fire or damage the transceiver. AVOID placing the transceiver against walls or putting anything on top of the transceiver. This will obstruct heat dissipation. Place unit in a secure place to avoid inadvertent use by children. During mobile operation, DO NOT operate the transceiver without running the vehicle's engine. When the transceiver's power is ON and your vehicle's engine is OFF, the vehicle's battery will soon become exhausted. Make sure the transceiver power is OFF before starting the vehicle. This will avoid possible damage to the transceiver by ignition voltage spikes. During maritime mobile operation, keep the transceiver and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications. BE CAREFUL! The rear panel will become hot when operating the transceiver continuously for long periods. BE CAREFUL! If a linear amplifier is connected, set the transceiver's RF output power to less than the linear amplifier's maximum input level, otherwise, the linear amplifier will be damaged. Use Icom microphones only (supplied or optional). Other manufacturer's microphones have different pin assignments, and connection to the IC-703 may damage the transceiver. R NEVER apply more than 16 V DC, such as a 24 V battery, to the [DC13.8V] receptacle on the transceiver rear panel. This could cause a fire or damage the transceiver. R NEVER let metal, wire or other objects touch any internal part or connectors on the rear panel of the transceiver. This may result in an electric shock. NEVER expose the transceiver to rain, snow or any liquids. AVOID using or placing the transceiver in areas with temperatures below ­10°C (+14°F) or above +60°C (+140°F). Be aware that temperatures on a vehicle's dashboard can exceed 80°C (+176°F), resulting in permanent damage to the transceiver if left there for extended periods. AVOID placing the transceiver in excessively dusty environments or in direct sunlight. Beat signals may be heard on some frequencies. These will occur as a result of circuit construction. For U.S.A. only Caution: Changes or modifications to this transceiver, not expressly approved by Icom Inc., could void your authority to operate this transceiver under FCC regulations. i TABLE OF CONTENTS Quick Reference 1 2 3 4 5 6 7 8 9 10 SUPPLIED ACCESSORIES The transceiver comes with the following accessories. Qty. q Hand microphone (HM-103) .............................. 1 w DC power cable (OPC-1229) ............................. 1 e Spare fuse (FGB 4 A) ........................................ 3 r ACC cable ...........................................................1 t 3.5 (d) mm plug ...................................................1 y 6.5 (d) mm Electronic keyer plug.........................1 u Microphone hanger..............................................1 q w FOREWORD ................................................... i IMPORTANT ...................................................i EXPLICIT DEFINITIONS .................................... i PRECAUTION ................................................i TABLE OF CONTENTS .................................... ii 1 PANEL DESCRIPTION ..................... 1­10 QUICK REFERENCE GUIDE .................. I­X I Installation ................................................ I 1. Grounding your Shack ........................... I 2. Installing your DC Power Supply ............ I 3. Installing lightning protection .................. II 4. Installing your antenna system ............... II 5. Connect other peripheral equipment ...... III I Operation ................................................ III 1. Voice ................................................ III 2. CW................................................... III 3. Other convenient items ........................ IV I Your first contact ....................................... IV D Getting started ....................................... IV D Just listening .......................................... V 1. Select the desired band ........................ V 2. Tune to the desired frequency ............... V 3. Adjust audio output .............................. V D What are you hearing? ........................... VI 1. Verify mode ....................................... VI 2. Reducing interference (Some functions may require an optioanl unit depending on version) ... VI I Ready to call CQ? .................................... IX 1. Setting up your Mic Gain ..................... IX 2. Speech compressor.............................. X I Front panel ................................................ 1 I Multi-function switches ................................. 4 D M1 functions .......................................... 4 D M2 functions .......................................... 4 D M3 functions .......................................... 4 D M4 functions .......................................... 5 D S1 functions .......................................... 6 D S2 functions .......................................... 6 D S3 functions .......................................... 6 D S4 functions (UT-106 is required for some version) ......... 6 I Rear panel ................................................ 7 D DATA socket .......................................... 8 D ACC socket............................................. 8 I Function display.......................................... 9 I Microphone (HM-103) .............................. 10 2 INSTALLATION AND CONNECTIONS ... 11­16 I Unpacking................................................ 11 I Selecting a location.................................... 11 I Grounding................................................ 11 I Antenna connection.................................... 11 I Installation ............................................. 12 D Single body mounting .............................. 12 D Stand ................................................... 12 D Front panel separation ........................... 12 D Front panel mounting .............................. 12 I Required connections................................. 13 I Advanced connections .............................. 14 I DC Power voltage .................................... 15 I DC Power supply connections ..................... 15 I Battery connections ................................. 15 I External antenna tuners and linear amplifier ... 16 11 12 13 14 e r t y u 15 16 17 18 Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries. 19 ii TABLE OF CONTENTS 3 BASIC OPERATION ........................17­26 I When first applying power (CPU resetting)...... 17 D M1 display selection .............................. 17 I Initial settings .......................................... 17 I VFO description ....................................... 18 D The differences between VFO and memory mode ....................................... 18 I Frequency setting .................................... 19 I Operating mode selection ........................... 23 I Volume setting .......................................... 23 I Squelch and receive (RF) sensitivity ............ 24 I Dial lock function ....................................... 25 I Basic transmit operation ........................... 25 D Transmitting .......................................... 25 D Maximum output power ........................... 25 D Setting output power .............................. 26 D Setting microphone gain........................... 26 5 FUNCTION FOR RECEIVE ............... 46­50 I Simple band scope .................................... 46 I Preamp and attenuator .............................. 46 I RIT function ............................................. 47 I IF shift function ....................................... 47 I Noise blanker .......................................... 48 D Noise blanker level set mode .................. 48 I AGC time constant .................................... 48 I Optional filter selection .............................. 49 I Peak meter hold ....................................... 50 I DSP Functions (may require an optional unit depending on version) .............................. 50 D ANF (Automatic Notch Filter) function ......... 50 D NR (Noise Reduction) function .................. 50 6 FUNCTION FOR TRANSMIT ............... 51­55 I Split frequency operation ........................... 51 D Quick split function ................................. 52 I Meter selection ....................................... 52 I VOX operation .......................................... 53 D VOX set mode ....................................... 53 I Speech compressor ................................. 54 D Compression level set mode ..................... 54 I SWR......................................................... 55 D Measuring SWR .................................... 55 4 RECEIVE AND TRANSMIT ............... 27­45 I Operating SSB.......................................... 27 D Convenient functions for receive ............... 27 D Convenient functions for transmit ............... 27 I Operating CW .......................................... 28 D Connections for CW .............................. 28 D CW operation ....................................... 29 D Convenient functions for receive ............... 30 D Convenient functions for transmit ............... 30 D CW reverse mode ................................. 30 D CW pitch control .................................... 31 D Electronic CW keyer .............................. 31 D CW side tone function.............................. 32 D Keyer set mode .................................... 32 I Memory keyer functions.............................. 33 D Memory keyer send menu ........................ 34 D Editing a memory keyer ........................... 35 D Contest number set mode ........................ 36 D Memory keyer set mode........................... 37 I Operating RTTY ....................................... 38 D Connections for RTTY (FSK)..................... 38 D RTTY (FSK) operation ........................... 38 D Convenient functions for receive ............... 39 D RTTY reverse mode .............................. 39 D Presetting for RTTY .............................. 40 D RTTY tone set mode .............................. 40 I Operating AM .......................................... 41 D Convenient functions for receive ............... 41 D Convenient functions for transmit ............... 41 I Operating FM .......................................... 42 D Convenient functions for receive ............... 42 D Convenient functions for transmit ............... 42 D Tone squelch operation ........................... 43 D Tone scan operation .............................. 43 D FM tone set mode ................................. 44 I Repeater operation .................................... 45 7 MEMORY OPERATION ..................... 56­60 I Memory channels .................................... 56 I Memory channel selection........................... 56 I Memory programming .............................. 57 I Memory clearing ....................................... 58 I Frequency transferring .............................. 58 I Memory names ....................................... 59 I Memo pads ............................................. 60 8 SCAN OPERATION ........................ 61­63 I Scan types ............................................. 61 I Preparation ............................................. 61 I Programmed scan operation........................ 62 I Memory scan operation .............................. 62 I Select memory scan operation ..................... 63 I Priority watch .......................................... 63 9 ANTENNA TUNER OPERATION......... 64­66 I Antenna tuner operation ........................... 64 D Internal antenna tuner.............................. 64 D Tuner operation .................................... 64 D Optional external tuner operation ............... 65 D Optional AT-180 AUTOMATIC ANTENNA TUNER operation ......... 65 D Optional AH-4 AUTOMATIC ANTENNA TUNER operation ......... 66 iii TABLE OF CONTENTS Quick Reference 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 iv 10 DATA COMMUNICATION ............... 67­70 I Connections for packet .............................. 67 D When connecting to [DATA] socket ............ 67 D When connecting to [ACC] socket ............ 67 D When connecting to [MIC] connector ......... 67 I Packet (AFSK) operation ........................... 68 D Frequency indication during AFSK operation ... 68 D SSB-D mode selection ........................... 69 D Carrier point setting................................. 69 D Adjusting the transmit signal from the TNC... 70 11 CONTROL COMMAND .................. 71­73 I Remote jack (CI-V) information .................. 71 D CI-V connection example ........................... 71 D Data format ............................................. 71 D Command table .................................... 72 D Band stacking register ........................... 73 D Codes for memory keyer contents ............ 73 D Codes for memory name contents ............ 73 29 [UP]/[DN] speed .............................. 80 30 Noise blanker in AM mode .................. 80 31 Available memo pads ........................ 80 32 Power ON check function .................. 81 33 Auto tune start function ..................... 81 34 PTT tune function .............................. 81 35 Tuner switch condition ........................ 81 36 Packet data speed ........................... 81 37 Voice synthesizer language.................. 82 38 Voice synthesizer speed ..................... 82 39 S-meter level speech ........................ 82 40 CI-V address setting ........................... 82 41 CI-V data transffer rate........................ 82 42 CI-V transceive ................................. 82 43 CI-V operating frequency data length ... 82 13 MAINTENANCE ................................. 83 I Fuse replacement .................................... 83 I Memory backup ....................................... 83 I Cleaning ................................................ 83 12 SET MODE ................................. 74­82 I General ................................................... 74 D Quick set mode operation ........................ 74 D Initial set mode operation ........................ 74 I Quick set mode items................................. 75 I Initial set mode items ................................. 76 1 Maximum output power setting ............ 76 2 Power save setting ........................... 76 3 Simple mode setting ........................... 76 4 Mode availability .............................. 76 5 Output power setting for mode ............ 76 6 Confirmation beeps ........................... 77 7 Band edges beeps ........................... 77 8 Beep level adjustment ........................ 77 9 Beep audio level limit ........................ 77 10 CW carrier point setting ..................... 77 11 CW side tone level ........................... 77 12 CW side tone level limit ..................... 77 13 SSB/CW frequency shift setting ............ 78 14 Display backlighting ........................... 78 15 Key/switch backlighting ..................... 78 16 Light timer setting .............................. 78 17 LED brightness ................................. 78 18 Automatic power OFF ........................ 78 19 Current intercept point ........................ 79 20 RF gain/squelch control ..................... 79 21 Sub dial setting ................................. 79 22 Optional filter selection........................ 79 23 Peak meter hold setting ..................... 79 24 Quick split function ........................... 79 25 Split lock function .............................. 80 26 Split offset frequency ........................ 80 27 Scan resume condition........................ 80 28 Scanning speed................................. 80 14 TROUBLESHOOTING..................... 84­85 15 OPTIONAL UNIT INSTALLATIONS AND SETTINGS ... 86­89 I Opening the transceiver case ..................... 86 I UT-102 VOICE SYNTHESIZER UNIT .................. 86 D Operation ............................................. 86 I IF filter ................................................... 87 I UT-106 DSP RECEIVER UNIT ........................ 88 I MB-72 CARRYING HANDLE ........................... 88 I AT-180 internal switch description ............... 89 16 SPECIFICATIONS .............................. 90 I General ................................................... 90 I Transmitter ............................................. 90 I Receiver ................................................ 90 I Antenna tuner .......................................... 90 17 OPTIONS .................................... 91­92 18 MENU GUIDE .............................. 93­94 19 ABOUT CE.................................... 95­96 QUICK REFERENCE GUIDE I Installation 1. Install a ground system for DC noise suppression and RFI suppression 2. Install your DC power supply 3. Install lightning protection. This will help protect more than your gear. 4. Install and connect an antenna system for the appropriate bands of operation 5. Connect other peripheral equipment. This includes microphones, headsets, TNC, amplifiers and any other equipment necessary to make your shack complete. 1. Grounding your Shack Although your radio will operate by connecting the DC power supply and antenna, it is necessary to have a good ground system in your shack. A ground connection is the electrical contact between the common point of an electrical or electronic system and the earth. A good earth ground is necessary to prevent electrical shock, eliminate problems from RFI and DC noise. With more electronic devices being used today, it is also important to reduce RFI and EMI. Although you may not see interference in your shack, without a grounding system, your neighbours may experience interference. Even though many of these devices are Part 15, where they must accept interference from their surrounding environment, it is best to eliminate as much of the possible interference from your shack. If you do not have a grounding system for your shack, depending on the location of your shack, basement or ground floor, a good ground system can be as simple as a couple of ground rods driven 6 to 8 feet into the soil. When installing your IC-703 to your grounding system, the shortest most direct connection is recommended. NOTE: There are many publications covering proper grounding techniques. Check with your local dealer for more information and recommendations. R WARNING!: NEVER ground station equipment or antennas to house gas lines. NEVER attach ground lines to plastic (pvc) pipe. D Some Symptoms if inadequate grounding a. Poor DC Ground 50/60 Hz hum on the audio either Rx or Tx without the antenna connected. If you feel a tingling sensation when you touch a metal surface. Surfaces such as the cover of your radio or power supply. b. Poor RF Ground While transmitting and you feel a tingling sensation when you touch a metal surface. Surfaces such as the cover of your radio or power supply. While transmitting, you experience interference to other electronic devices, such as the telephone, television or stereo audio systems. 2. Installing your DC Power Supply The DC power supply is a device used to convert 110/220 V AC, also know as Household current, to a steady source of 13.8 V DC. The perfect match to your IC-703 is the PS-125. This plug and play unit plugs into the DC power receptacle using an optional OPC-1248 located on the rear of the radio. Or connect the supplied DC power cable (OPC-1229) to the appropriate color coded terminals, then insert the DC connector into the DC power receptacle located on the rear of the radio. NOTE: Although the power supply current requirement is quite low during receiving, this not the case when you transmit. With many electrical devices in the shack, it is very important to verify the electrical circuit is not overloaded. I Ground PS-125 to DC A DC power power supply* receptacle Black Red _+ *13.8 V; at least 3.0 A continuous Transceiver AC outlet DC power cable Optional OPC-1248 Supplied OPC-1229 AC cable Connect to an AC outlet using the supplied AC cable. 4 A fuses QUICK REFERENCE GUIDE Although you may not live in an area with high occurrence for lightning storms, it is always wise to take precautions for lightning or static discharges. Proper lightning protection not only offers protection to the ham gear, but the shack and most importantly the operator. NOTE: There are many publications covering proper lightning protection, check with your local dealer for more information and recommendations. 4. Installing your antenna system Whether your IC-703 is your first radio or one of many, one of your key elements in a great shack is the antenna system. There is a connection on the back of your IC-703, for HF and 6 m. If you are using one antenna for HF and 6 m, for simplicity, connect the antenna coax to ANT. ANTENNA Connect a HF/50MHz antenna Impedance: 50 PL-259 CONNECTOR INSTALLATION EXAMPLE q 30 mm Slide the coupling ring down. Strip the cable jacket and soft solder. Strip the cable as shown at left. Soft solder the center conductor. Slide the connector body on and solder it. Screw the coupling ring onto the connector body. Coupling ring 10 mm (soft solder) 10 mm w Soft solder 1­2 mm e solder solder r 30 mm 9/8 in 10 mm 3/8 in 1­2 mm 1/16 in R WARNING: Although a mag mount antenna works great on a vehicle, DO NOT use the IC-703 with this type of antenna. CAUTION: Although your IC-703 has protection to drop down power with a high SWR, this does not completely protect the transceiver from transmission without an antenna. Make sure you have an antenna connected whenever you transmit with your radio. NOTE: There are many publications covering proper antennas and their installation, check with your local dealer for more information and recommendations. Your IC-703 is equipped with an internal antenna tuner (ATU) for operation on 160­6 m. This ATU is designed to work with an unbalanced 50 feedline. The purpose of the internal antenna tuner is to match the impedance of your antenna system to as close to a 50 load as possible. This ATU will not operate with a long wire or ladder line (450 or other balanced feedlines). An external ATU such as the AH-4 would be necessary for this kind of operation. Antenna SWR Each antenna is tuned for a specified frequency range and SWR may be increased out-of-range. When the SWR is higher than approx. 2.0:1, the transceiver's power drops to protect the final transistors. In this case, an antenna tuner is useful to match the transceiver and antenna. Low SWR allows full power for transmitting even when using the antenna tuner. The IC-703 has an SWR meter to monitor the antenna SWR continuously. II Quick Reference 3. Installing lightning protection QUICK REFERENCE GUIDE 5. Connect other peripheral equipment Everyone has his or her favorite ad-on gear; now is the time to connect this gear! We will cover the basic devices that can be connected to your IC-703. If you do not see the particular item you are wanting to connect, refer to the Advance Connections section starting on page 14. I Operation 1. Voice Microphones: Connect the microphone to the modular-type connector bottom of the front panel or back of the radio. Front panel MICROPHONES Rear panel HM-103 SM-20 OPC-589 2. CW CW Key: There are several types of keys or keyers that can be used with your IC-703. a. Iambic Key paddle: Use a 6.35(d) mm (1/4) stereo plug and connect to the [KEY] jack located on the rear of the radio. Rear panel b. Straight Key: Use a 6.35(d) mm (1/4) mono plug and connect key to the back of the radio. c. External Keyer: Use a 6.35(d) mm (1/4) mono plug and connect to the back of the radio. d. Computer Keying: Use a 6.35(d) mm (1/4) mono plug and connect to the back of the radio. Rear panel CW KEY When connecting a paddle (dot) (com) (dash) CW KEY A straight key can be used when the internal electronic keyer is turned OFF in keyer set mode. (p. 32) When connecting a straight key or else (+) (_) NOTE: You will need to select the type of keyer you are using in the keyer set mode. There are many advanced CW functions in this set mode. Until you have a full understanding of these functions change only the items necessary. III QUICK REFERENCE GUIDE Headphones: A 3.5(d) mm (1/4) mono jack for operation without using the internal or external speakers. Perfect for operation without disturbing others in the room. External Speaker: A 3.5(d) mm (1/8) mono jack for operation with an external speaker. (Input impedance: 8 /Max. input power: 5 W) Rear panel SPEAKER Front panel or HEADPHONES PHONES SPEAKER Select `PHONES' with the [PHONES/SPEAKER] switch on the back of the front panel. Front panel SPEAKER PHONES SPEAKER Select `SPEAKER' with the [PHONES/SPEAKER] switch on the back of the front panel. I Your first contact Now you should have your IC-703 installed in your shack, and like a kid on his birthday, you are probably excited to get on the air. We would like to take you through a few basic operation steps to make your first "On The Air" an enjoyable experience. D Getting started 1. Before powering up your radio, you may want to make sure the following controls are set in the following positions: 2. Resetting the CPU: Although you have purchased a brand new radio, some settings may be changed from the factory defaults during the QC process. So your radio can start from Factory Defaults resetting the CPU is necessary. (Refer to p.17) [POWER] [Y] · [AF] · [RF/SQL] · [SHIFT] : Commonly referred to as the volume: fully counter clockwise. : The control for the RF Gain and Squelch circuits: 12 o'clock. : Shifts the IF center frequency: 12 o'clock [Z] IV Quick Reference 3. Other convenient items QUICK REFERENCE GUIDE D Just listening 1. Select the desired band On your IC-703, an easy way of changing bands is by using the [(Y)BAND] or [(Z)BAND] located just right corner on the front panel. [Y] Push [(Y)BAND] or [(Z)BAND] to select the desired band. · Pushing [(Y)BAND] or [(Z)BAND] continuously scrolls through the available bands. [Z] · Say you want to go to 20 meters or 14 MHz; you would push [(Y)BAND] or [(Z)BAND] several times to select it. This will change the displayed operating frequency to the 20-meter band. NOTE: The band stacking register can also be used to select bands. (Refer to p. 22) 2. Tune to the desired frequency Directly left of the [(Y)BAND]/[(Z)BAND] is the main dial. This will allow you to dial in the frequency you want to operate. You will notice the tuning speed [TS] is 10 Hz resolution. Page 20 will instruct you on how to set the tuning speed [TS] for 1 Hz resolution. 3. Adjust audio output Adjust this control to a comfortable audio level. AF RF/SQL Decreases Increases No audio output Max. audio output V QUICK REFERENCE GUIDE Stop and focus on what you are hearing. Do you hear a lot of noise? Is the signal intelligible? Are you set up for the right mode? How about the filters? 1. Verify mode Although your IC-703 will automatically select USB or LSB in the HF bands, it will not select any of the other modes. You will need to select the proper mode whether CW, RTTY, AM or FM. MODE Hint! The Band Stacking Register will memorize the last frequency used in the band, as well as the Mode, Filter, Tuner and AGC settings. This makes band hoping much easier. 2. Reducing interference (some functions may require an optional unit depending on version) Your IC-703 has many features to reduce QRM and QRN from the desired signal. a. Noise Reduction: The noise reduction system on your IC-703 is part of the DSP. This is used to reduce the hiss and QRM levels. q Select S4 (DSP menu). · Push [DISPLAY] once or twice to select S. · Push [MENU] one or more times to select S4. b. Adjusting the Noise Reduction: The noise reduction is completely variable on how much of the DSP Noise Reduction is used. q Push [(F-3)NRL] to indicate the noise reduction level. w Rotate the [M-CH] control to set the noise reduction level. e Push [(F-3)NRL] to exit the noise reduction level set mode. w Push [(F-2)NR] to activate the noise reduction function. · "DSP" and "NR" appear when the function is ON. [MENU] [(F-2)] [DISPLAY] USB [M-CH] USB [(F-3)] Appear DSP NR BLANK S1 PO 3 5 7 9 5 20 40 60dB 10 DSP NR BLANK S1 3 5 7 9 5 20 40 60dB 10 VFO A VFO A CH S4 ANF NR NRL CH S4 LEVEL 4 NRL Hint! How far you advance the NR control will determine how much the noise can be effectively reduced. Adjusting the noise reduction level too high may cause some distortion to occur on the received signal. The noise reduction level should only be set as high as is necessary. Use this setting, along with RF gain, NB (noise blanker, if needed), and IF filters as well, to minimize the effects of noise on the target signal. VI PO Noise reduction ON Noise reduction OFF Quick Reference D What are you hearing? QUICK REFERENCE GUIDE c. Automatic Notch: The automatic notch will track up to heterodynes. This is helpful for eliminating annoying transmitter "tune up" tones on any band, and to minimize continuous tone "heterodynes" encountered on the 40 meter phone bands at night, for example. Once selected an icon will appear "ANF" on the display. q Select S4. · Push [DISPLAY] once or twice to select S. · Push [MENU] one or more times to select S4. [(F-1)] [MENU] USB [DISPLAY] w Push [(F-1)ANF] to activate the automatic notch filter. NOTE: Your IC-703 is equipped with an AGC circuit. This allows the DSP to filter out interfering signals and QRM, while also taking this interference out of the AGC. Bottom line, this will either eliminate or greatly reduce the pumping of the AGC from the interfering signal. Appear DSP ANF BLANK S1 PO 3 5 7 9 5 20 40 60dB 10 VFO A S4 ANF NR NRL CH Hint! The Automatic Notch will not operate in the CW, RTTY or SSB-D modes. d. Noise Blanker: The noise blanker function reduces pulse-type noise such as that generated by automobile ignition systems. This function is not effective for FM modes or for non pulse-type noise. q Select M3. · Push [DISPLAY] once or twice to select M. · Push [MENU] one or more times to select M3. e. Adjusting the Noise Blanker: The noise blanker is completely variable on how much of the Noise Blanker is used. q Push [(F-2)NB] for 1 sec. to enter the noise blanker level set mode. w Rotate the main dial to set the noise blanker level. e Push [DISPLAY] to exit the noise blanker level set mode. w Push [(F-2)NB] to activate the noise blanker. · "NB" appears when the function is ON. [MENU] [(F-2)] [DISPLAY] USB USB [(F-2)] [DISPLAY] Main dial Appears NB S1 PO 3 5 7 9 5 20 40 60dB 10 BLANK VFO A M3 FIL NB MET CH N1 NB LEVEL Hint! When using the noise blanker, received signals may be distorted if the noise blanker level setting has been too high. VII QUICK REFERENCE GUIDE Narrow filters help reject interference from adjacent signals and obtain good selectivity. Wide filters provide improved audio for SSB operation when no interfering signals are present. Narrow filters for AM/FM modes are standard. FILTER PRESETTING: After you install a filter (see p. 87 for installation), you must specify the installed filter in initial set mode (item "22 OPT. FIL" ; see p. 79). FILTER ON/OFF: q Select M3. · Push [DISPLAY] once or twice to select M. · Push [MENU] one or more times to select M3. [(F-1)] [MENU] N W [DISPLAY] USB BLANK S1 PO 3 5 7 9 5 20 40 60dB 10 VFO A M3 FIL NB Either these appears when selected MET CH w Push [(F-1)FIL] momentarily to select the narrow filter; push for 1 sec. to select the wide filter. · ã appears when the narrow filter is selected; ç appears when the wide filter is selected. NOTE: When selecting the narrow filter (or wide filter), the graphic passband is changed (see diagram below). wide is selected Normal operation narrow is selected We hope these pointers have been helpful. Now you are ready for the "Ready to call CQ?". VIII Quick Reference f. Filter: One optional filter can be installed in the IC-703. QUICK REFERENCE GUIDE I Ready to call CQ? [POWER]: OFF [P.AMP/ATT]: OFF (indicator lights out) [TUNER]: OFF (indicator lights out) [RIT/SUB]: OFF (indicator lights out) [SHIFT]: Center AF RF SQL [AF]: Max. CCW MODE Y BAND CCW : counterclockwise [RF/SQL]: Center POWER P.AMP ATT TS RX TUNER RIT SUB M-CH SHIFT TX DISPLAY PHONES LOCK BAND MENU F1 F2 F3 Z [LOCK]: OFF (indicator light out) 1. Setting up your Mic Gain Microphone gain must be adjusted properly so that your signal does not distort when transmitted. q Select SSB or another phone mode (AM or FM mode). w Push [DISPLAY] for 1 sec. to select quick set mode. e Push [MENU] one or more times to select "Q2 MIC GAIN." · The ALC meter is selected automatically when operating in SSB mode. [MENU] USB [DISPLAY] Main dial r While speaking into the microphone, rotate the main dial to adjust the microphone gain so that the ALC meter does not peak past the ALC zone. · While transmitting at your normal voice level, the ALC meter should read at about the middle of the ALC zone. · Be sure the mic gain is in the range of 2 to 5. S1 ALC 3 5 7 9 20 40 60dB Q2 MIC GAIN ALC ALC zone t Push [DISPLAY] to exit quick set mode. IX QUICK REFERENCE GUIDE The IC-703 has a built-in, low distortion speech compressor circuit. This circuit increases your average talk power in SSB mode and is especially useful for DX'ing when the receiving station is having difficulty copying your signal. q Select USB or LSB mode. w Select the ALC meter. · Push [DISPLAY] once or twice to select M. · Push [MENU] one or more times to select M3, then push [(F-3)MET] one or more times to select "ALC." · Push [MENU] one more time to select M4. [(F-3)] [MENU] [(F-2)] [DISPLAY] Main dial USB e Select M4. r Push [(F-2)COM] to turn the speech compressor function ON. · "COM" appears. S1 ALC 3 5 7 9 20 40 60dB t Push [(F-2)COM] for 1 sec. to enter the compression level set mode (p. 54). y Rotate the main dial to set the speech compression level. NOTE: When the ALC meter peaks at light the ALC zone, your transmitted voice may be distorted. C1 COMP LEVEL ALC ALC zone Hint! Voice patterns and audio characteristics vary with each operator, therefore the Microphone gain, speech compression settings will be different for each operator. Actual on air experimenting is necessary to get just the right sound. It's best to test and adjust your audio on the air, while someone who knows what your real voice sounds like listens, and provides and opinion on your audio quality. Verify you have selected a clear frequency and call out your CQ! X Quick Reference 2. Speech compressor 1 q PANEL DESCRIPTION I Front panel we AF RF SQL r t yu MODE i Y BAND o POWER P.AMP ATT USB TS @2 @1 @0 !9 RX TUNER RIT SUB M-CH SHIFT S1 PO 3 5 7 9 5 20 40 60dB 10 VFO A CH TX PHONES M1 SPL A/B XFC MENU F1 F2 F3 !0 DISPLAY LOCK BAND Z !8 !7 !6 !5 !4 !3 !2 !1 q POWER SWITCH [POWER] (p. 17) While transceiver's power is OFF: Push to turn power ON. · Turn the DC power supply ON in advance. · When setting as RF gain/squelch control Noise squelch (FM mode) Squelch is open. Recommended level Maximum RF gain RF gain adjustable range While transceiver's power is ON: Push momentarily to indicate the connected power supply voltage. Push for 1 sec. to turn power OFF. w AF GAIN CONTROL [AF] (inner control; p. 17) Varies the audio output level from the speaker. AF RF/SQL S-meter squelch Decreases Increases · When functioning as RF gain control (Squelch is fixed open; SSB, CW, RTTY only) Maximum RF gain Adjustable range Minimum RF gain No audio output Max. audio output e RF GAIN CONTROL/SQUELCH CONTROL [RF/SQL] (outer control; p. 24) Adjusts the RF gain and squelch threshold level. The squelch removes noise output from the speaker (closed condition) when no signal is received. · The squelch is particularly effective for FM. It is also available for other modes. · 12 to 13 o'clock position is recommended for any setting of the [RF/SQL] control. · The control can be set as `Auto' (RF gain control in SSB, CW and RTTY; squelch control in AM and FM) or squelch control (RF gain is fixed at maximum) in initial set mode as follows. (p. 79) MODE SSB, CW RTTY AM, FM AUTO SET MODE SETTING SQL RF GAIN + SQL SQL SQL RF GAIN + SQL RF GAIN + SQL · When functioning as squelch control (RF gain is fixed at maximum.) Noise squelch threshold (FM mode) Noise squelch (FM mode) S-meter squelch threshold S-meter squelch Squelch is open. RF GAIN SQL Shallow Deep 1 PANEL DESCRIPTION 1 r FUNCTION DISPLAY Shows the operating frequency, dot matrix indications, selected memory channel, etc. See p. 9 for details. t TUNING STEP SWITCH [TS] (pgs. 19­21) While in SSB/CW/RTTY modes, push momentarily to turn the programmable tuning step ON and OFF. While in FM/AM mode push momentarily to toggle the programmable tuning step and 1 MHz quick tuning step. · While the programmable tuning step indicator is displayed, the frequency can be changed in programmed kHz steps. Programmable tuning step indicator USB o UP/DOWN (BAND) SWITCHES [Y/Z(BAND)] Push momentarily to select a band. · Can also be used to advance or back the quick set mode items, initial set mode items, etc. Push and hold to scroll through the bands continuously. !0 MAIN DIAL TENSION LATCH Selects the main dial tension. · 2 positions are available. !1 MICROPHONE CONNECTOR (p. 10) Modular-type microphone connector--Accepts the supplied microphone (HM-103). · The optional OPC-589 can be used to connect an 8-pin microphone such as the SM-8 or SM-20, if desired. · A microphone connector is also available on the rear panel. DO NOT connect 2 microphones simultaneously. 1 · 0.01 (FM/AM mode only), 0.1, 1, 5, 9, 10, 12.5, 20, 25 and 100 kHz tuning steps are available. · 1 MHz quick tuning step are only available in FM and AM modes. !2 LOCK SWITCH [LOCK] Push momentarily to toggle the dial lock function ON and OFF. · The dial lock function electronically locks the main dial. While the programmable tuning step is OFF, turns the 1 Hz step ON and OFF when pushed for 1 sec. · 1 and 10 Hz steps are only available in SSB, CW and RTTY modes. · 1 Hz indication appears, and the frequency can be changed in 1 Hz steps. When the optional UT-102 VOICE SYNTHESIZER UNIT is installed (p. 86), push for 1 sec. to have the frequency, etc. announced. · UT-102 operation can be adjusted in the initial set mode (p. 82). LOCK While the programmable tuning step is ON, enters the tuning step selection mode when pushed for 1 sec. y MODE SWITCH [MODE] (p. 23) Push momentarily to cycle through the operating modes: USB/LSB CW RTTY/SSB-D FM/AM Push for 1 sec. to toggle the following operating modes: USB LSB CW Memory keyer mode RTTY SSB-D (SSB data mode) FM AM u RECEIVE/TRANSMIT INDICATORS [RX]/[TX] [RX]: Lights green while receiving a signal and when squelch is open. [TX]: Lights red while transmitting. i MAIN DIAL Changes the displayed frequency, sets the values of selected initial set mode items, etc. Lights while the lock function is activated. !3 DISPLAY SWITCH [DISPLAY] (p. 94) Push momentarily to select one of the three menu sets: M1 to M4, S1 to S4 and G1 to G4. Push for 1 sec. to enter the quick set mode. !4 MULTI-FUNCTION SWITCHES [F1] / [F2] / [F3] Push to select the function indicated in the dot matrix display above these switches. (pgs. 4­6, 94) · Functions vary depending on the menu set selected. Push to edit a character for memory keyer programming or memory name. (pgs. 35, 59) !5 MENU SWITCH [MENU] (p. 94) Push this switch one or more times to select menus within a menu set (M, S or G), or push to advance through the quick set mode and initial set mode displays. Push for 1 sec. to jump between two different function menu sets. 2 1 PANEL DESCRIPTION !6 RIT/SUB DIAL SWITCH [RIT/SUB] (pgs. 21, 47) Push to toggle the RIT or SUB DIAL function ON and OFF--initial set mode is used to select the desired action*. · Lights green when the SUB DIAL function is ON; lights red when the RIT function is ON. · Use the [M-CH] control to vary the RIT frequency or SUB DIAL frequency (see below). !9 HEADPHONE JACK [PHONES] (p. 14) Accepts headphones with 8­16 impedance. · When headphones are connected, no receive audio comes from the speaker. · When the PHONES/SPEAKER switch on the back of the front panel is set to the [SPEAKER] position, an external speaker can be connected. This is convenient for mobile or outdoor operation. Back of the front panel PHONES SPEAKER When the RIT function is ON, push for 1 sec. to add or subtract the shifted frequency to the operating frequency. RIT/ SUB PHONES SPEAKER Lights red while the RIT function is activated; green while the SUB DIAL function is activated. *Even if RIT is selected in initial set mode, RIT cannot be selected when operating AM or FM modes. What is the RIT function? The RIT (Receiver Incremental Tuning) shifts the receive frequency without shifting the transmit frequency. This is useful for fine tuning stations calling you on an off-frequency or when you prefer to listen to slightly differentsounding voice characteristics, etc. @0 TUNER SWITCH [TUNER] (pgs. 64­66) Push momentarily to toggle the automatic antenna tuner function ON and OFF (bypass). · Lights red when the automatic antenna function is ON. Push this switch for 1 sec. to manually tune the antenna. · When the tuner cannot tune the antenna, the tuning circuit is bypassed automatically after 20 sec. TUNER !7 SHIFT CONTROL [SHIFT] (outer control; p. 47) Shifts the center frequency of the receiver's IF passband. · Rotate the control clockwise to shift the center frequency higher, or rotate the control counterclockwise to shift the center frequency lower. · When rotate the control, the IF passband is graphically displayed and changes in accordance with the [SHIFT] control. M-CH SHIFT M-CH SHIFT M-CH SHIFT Lights while the automatic tuning function is activated. @1 FRONT PANEL LATCH (p. 12) Pull away from the transceiver (towards yourself when looking at the front of the transceiver) to detach the front panel from the main body of the transceiver. @2 PRE AMP/ATTENUATOR SWITCH [P.AMP/ATT] (p. 46) Push momentarily to turn the preamp ON or OFF. Push for 1 sec. to turn the 20 dB attenuator ON; push momentarily to turn the attenuator OFF. · Lights green when the preamp is ON; lights red when the 20 dB attenuator is ON. Shifts low Center Shifts high P.AMP/ATT !8 M-CH CONTROL [M-CH] (inner control) When the RIT or SUB DIAL functions are OFF, rotate to select a memory channel number (p. 56). Shifts the receive frequency while the RIT function is ON in SSB, CW and RTTY modes (see above or p. 47). · RIT variable range is ± 9.99 kHz Lights green while the preamp is activated; lights red while the attenuator is activated. What is the preamp? The preamp amplifies received signals in the front end circuit to improve the S/N ratio and sensitivity. Turn ON `P.AMP' when receiving weak signals. Changes the operating frequency in the selected tuning steps while the SUB DIAL function is ON (p. 21). M-CH SHIFT What is the attenuator? 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 station, are near your location. Decreases Increases 3 PANEL DESCRIPTION 1 I Multi-function switches D M1 functions D M2 functions