INSTRUCTION MANUAL HF/50 MHz ALL MODE TRANSCEIVER i703
FOREWORD IMPORTANT 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.
TABLE OF CONTENTS QUICK REFERENCE GUIDE ……………… I–X ■ 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 ■ Operation ………………………………………… III 1. Voice ………………………………………… III 2. CW…………………………………………… III 3.
TABLE OF CONTENTS 3 BASIC OPERATION ……………………17–26 5 FUNCTION FOR RECEIVE …………… 46–50 ■ When first applying power (CPU resetting)…… 17 D M1 display selection ………………………… 17 ■ Initial settings …………………………………… 17 ■ VFO description ………………………………… 18 D The differences between VFO and memory mode ………………………………… 18 ■ Frequency setting ……………………………… 19 ■ Operating mode selection ……………………… 23 ■ Volume setting …………………………………… 23 ■ Squelch and receive (RF) sensitivity ………… 24 ■ Dial lock function ………………………………… 25 ■ Basic t
10 DATA COMMUNICATION …………… 67–70 ■ 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 ■ 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 ……………… 71–73 ■ Remote jack (CI-V) information ……………… 71 D CI-V connection exam
QUICK REFERENCE GUIDE ■ 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.
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. Quick Reference 3. Installing lightning protection NOTE: There are many publications covering proper lightning protection, check with your local dealer for more information and recommendations. 4.
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. ■ Operation 1. Voice Microphones: Connect the microphone to the modular-type connector bottom of the front panel or back of the radio.
3. Other convenient items 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 Ω/Max. input power: 5 W) Rear panel SPEAKER Front panel Quick Reference QUICK REFERENCE GUIDE or HEADPHONES PHONES ∫ SPEAKER √ Select ‘PHONES’ with the [PHONES/SPEAKER] switch on the back of the front panel.
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] [Z] Push [(Y)BAND] or [(Z)BAND] to select the desired band. • Pushing [(Y)BAND] or [(Z)BAND] continuously scrolls through the available bands. • Say you want to go to 20 meters or 14 MHz; you would push [(Y)BAND] or [(Z)BAND] several times to select it.
D What are you hearing? 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.
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. [(F-1)] [MENU] q Select S4. • Push [DISPLAY] once or twice to select S. • Push [MENU] one or more times to select S4.
f. Filter: One optional filter can be installed in the IC-703. 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).
QUICK REFERENCE GUIDE ■ Ready to call CQ? [POWER]: OFF [P.AMP/ATT]: OFF (indicator lights out) [AF]: Max. CCW AF RF SQL MODE CCW : counterclockwise Y BAND POWER TS [RF/SQL]: Center P.AMP ATT RX [TUNER]: OFF (indicator lights out) TUNER TX RIT SUB M-CH SHIFT DISPLAY PHONES LOCK BAND [RIT/SUB]: OFF (indicator lights out) MENU F 1 F 2 Z F 3 [LOCK]: OFF (indicator light out) [SHIFT]: Center 1.
2. Speech compressor 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.” [(F-3)] [MENU] [(F-2)] [DISPLAY] Main dial e Select M4.
1 PANEL DESCRIPTION ■ Front panel q w e AF y u t r RF SQL o i MODE POWER Y BAND USB TS P.AMP ATT @2 @1 @0 RX TUNER S1 RIT SUB M-CH SHIFT PHONES 3 5 7 9 20 40 60dB 5 PO VFO A TX CH 10 M1 SPL A/B XFC !0 DISPLAY LOCK !9 BAND MENU !8 !7 !6 F 1 !5 F 2 Z F 3 !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.
PANEL DESCRIPTION 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. 19–21) ➥ 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.
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). ➥ When the RIT function is ON, push for 1 sec. to add or subtract the shifted frequency to the operating frequency. !9 HEADPHONE JACK [PHONES] (p.
PANEL DESCRIPTION 1 ■ Multi-function switches D M1 functions D M2 functions M1 SPL A/B XFC M2 MW MCL V/M MENU F-1 F-2 F-3 MENU F-1 F-2 F-3 SPLIT OPERATION (p. 30) ➥ Push momentarily to toggle the split funcSPL tion ON and OFF. (p. 51) F-1 • “ä”appears when the split function is ON. ➥ Push for 1 sec. to turn the quick split function ON. (p. 52) • The offset frequency must be programmed in advance using initial set mode. (p.
1 PANEL DESCRIPTION METER SELECTION (p. 52) the type of meter displayed (durMET Selects ing transmit) in the function display. F-3 • Power, ALC or SWR metering can be selected. • Only an S-meter is available for receive. SPEECH COMPRESSOR (p. 54) ➥ Push momentarily to toggle the speech COM compressor ON and OFF. F-2 • “COM” appears when the speech compressor is ON. ➥ Push for 1 sec. to enter the compression level set mode. • The COMP gain can be set in compression level set mode.
PANEL DESCRIPTION D S1 functions S1 MENU MW F-1 1 D S3 functions MPW F-2 MPR S3 7 F-3 MENU F-1 MEMORY WRITE (p. 57) for 1 sec. to store the selected MW Push readout frequency and operating mode F-1 into the displayed memory channel. MEMO PAD WRITE (p. 60) to store the the selected readout MPW Push frequency and operating mode into a F-2 memo pad. MEMO PAD READ (p. 60) Push to call up a memo pad. 14 21 F-2 F-3 QUICK BAND CHANGE FUNCTION (p.
1 PANEL DESCRIPTION ■ Rear panel e t y r u i w q !0 q ANTENNA CONNECTOR [ANT] (p. 13) Accepts a 50 Ω antenna with a PL-259 connector. w GROUND TERMINAL [GND] (p. 11) Connect this terminal to a ground to prevent electrical shocks, TVI, BCI and other problems. e DATA SOCKET [DATA] (pgs. 8, 14) 6-pin min DIN socket to connect a TNC (Terminal Node Controller), etc. for packet operation. • See page at right for socket information. r ACCESSORY SOCKET [ACC] (pgs.
PANEL DESCRIPTION 1 D DATA socket DATA 6 PIN No. NAME 1 DATA IN 2 GND Common ground for DATA IN, DATA OUT and AF OUT. 3 PTT P PTT terminal for packet operation. Connect ground to transmit data. 5 4 4 3 2 5 1 DESCRIPTION Input terminal for data transmit. (1200 bps: AFSK/9600 bps: G3RUH, GMSK) DATA OUT Data out terminal for 9600 bps operation only. AF OUT Data out terminal for 1200 bps operation only. Squelch out terminal.
1 PANEL DESCRIPTION ■ Function display q rb !3 N W e w LSB USB CW R RTTY AM FM TSQL SPL DSP ra t ANF NR !2 !1 NB VOX F-BK COM F AGC S1 3 5 ALC SWR PO 1 1.5 2 7 9 20 3 5 40 60dB ∞ 10 BLANK VFO A VFO B MEMO S CH u y i o M1 SPL A/B XFC !0 q NARROW/WIDE FILTER INDICATORS ➥ “ã” appears when selecting AM narrow or FM narrow modes. ➥ When installing an optional narrow filter, narrow mode can be selected in CW, RTTY and SSB modes.
PANEL DESCRIPTION 1 ■ Microphone (HM-103) q e LOCK DN UP OFF ON w 1 q UP/DOWN SWITCHES [UP]/[DN] w LOCK SWITCH [LOCK] Change the operating frequency. Locks the [UP]/[DN] switches. • Push and hold to change the frequency continuously. • Tuning step is 50 Hz when no TS indicator appears. e PTT SWITCH [PTT] Push and hold to transmit; release to receive. TECHNICAL INFORMATION • MICROPHONE CONNECTOR Rear panel view PIN NO.
2 INSTALLATION AND CONNECTIONS ■ Unpacking ■ Antenna connection After unpacking, immediately report any damage to the delivering carrier or dealer. Keep the shipping cartons. For radio communications, the antenna is of critical importance, along with output power and sensitivity. Select antenna(s), such as a well-matched 50 Ω antenna, and feedline. 1.5:1 or better of Voltage Standing Wave Ratio (VSWR) is recommended for your desired band. Of course, the transmission line should be a coaxial cable.
INSTALLATION AND CONNECTIONS 2 ■ Installation D Single body mounting MB-62 (optional) D Stand Spring washer Nut To raise the stand: With the transceiver upside down, pull the stand towards the rear panel and then upwards, as illustrated below. Supplied with the MB-62* then up Pull back Flat washer 2 *CAUTION: Non-supplied screws (longer than 8 mm) may damage the internal units. D Front panel separation q While pulling the panel release button towards you, slide the front panel to the right (fig. 1).
2 INSTALLATION AND CONNECTIONS ■ Required connections AF RF SQL MODE Y BAND POWER TS P.AMP ATT RX TUNER TX RIT SUB M-CH SHIFT DISPLAY PHONES LOCK BAND MENU F 1 F 2 F 3 Z MICROPHONE (p. 10) GROUND (p. 11) Use the heaviest gauge wire or strap available and make the connection as short as possible. HM-103 Grounding prevents electrical shocks, TVI and other problems. CW KEY (p. 28) HF/50 MHz ANTENNA Connects to DC 9.0–15.8 V power supply. See p. 15 for details.
INSTALLATION AND CONNECTIONS 2 ■ Advanced connections AF RF SQL MODE Y BAND POWER TS P.AMP ATT RX TUNER TX RIT SUB M-CH SHIFT DISPLAY PHONES LOCK BAND MENU HEADPHONES F 1 F 2 F 3 Z OPC-589 (p. 92) SPEAKER 2 or Selectable with the [PHONE/SPEAKER] switch on the back of the front panel. EXTERNAL SPEAKER (p. 91) SM-20 ACC SOCKET (p. 8) DATA SOCKET (p. 8) 6-pin mini DIN socket to connect to a TNC, etc. for packet operation. AH-2b AH-4 (p. 16) SP-7/SP-10 DESKTOP (p.
2 INSTALLATION AND CONNECTIONS ■ DC Power voltage Depending on the applied voltage from the connected power supply, a boarder voltage of 11.0 V is set as the point where the IC-703 switches between normal operating mode (over 11.0 V), and battery operating mode (under 11.0 V: power save mode). when the voltage reaches 11.5 V. This 0.5 V voltage difference prevents irregular switching between normal mode and battery mode, caused by the voltage drop which are current capacity, receiving or transmitting.
INSTALLATION AND CONNECTIONS 2 ■ External antenna tuners and linear amplifier CONNECTING THE AH-4 Long wire or optional AH-2b IC-703 AH-4 ANT Ground Ground Coaxial cable (from the AH-4) CONNECTING THE AT-180 HF to 6 m antenna ACC cable supplied with the AT-180 [ANT] [ACC] [ACC] 2 one of two connectors IC-703 AT-180 Ground Coaxial cable supplied with the AT-180 [ANT] [TRANSCEIVER] Ground Note: Turn the IC-703’s power OFF when connecting the AT-180, otherwise, the CPU may malfunction and
3 BASIC OPERATION ■ When first applying power (CPU resetting) Before first applying power, make sure all connections required for your system are complete by referring to Chapter 2. Then, reset the transceiver using the following procedure. [POWER] [Y] Resetting CLEARS all programmed contents in memory channels and returns all initial set mode and quick set mode contents to their default values. [Z] q Make sure the transceiver power is OFF. w While pushing [Y] and [Z], push [POWER] to turn power ON.
BASIC OPERATION 3 ■ VFO description VFO is an abbreviation of Variable Frequency Oscillator, and traditionally refers to an oscillator. The IC-703’s VFO can store a frequency and an operating mode. You can call up a desired frequency to a VFO with the memo pad-read switch (p. 60) or with the memory transfer switch (p. 58).
3 BASIC OPERATION ■ Frequency setting • Band selection All HF ham bands, the 50 MHz band and a general coverage receiver band are included in the IC-703. [Y] Push [(Y)BAND]/[(Z)BAND] to select the desired band. [Z] • Pushing [(Y)BAND]/[(Z)BAND] continuously scrolls through the available bands. The band stacking register can also be used to select bands. Refer to p. 22. FM LSB Z USB Z USB USB • Programmable tuning steps Programmable tuning steps are available to suit your operating requirements.
BASIC OPERATION 3 • 1 Hz and 10 Hz tuning steps When neither the quick tuning step or programmable tuning step “Z ” appear, rotating the main dial changes the frequency in increments of 1 or 10 Hz. These tuning steps are only available in SSB, CW and RTTY modes. [MODE] q Select SSB, CW or RTTY mode if necessary. w Push [TS] for 1 sec. to toggle between the 1 Hz and 10 Hz step settings.
3 BASIC OPERATION • [TS] switch flow chart SSB/CW/RTTY modes Any mode FM/AM modes Appears USB TS 10 Hz tuning momentarily USB FM TS Programmable step tuning (100 Hz –100 kHz) 1 sec. momentarily 1 MHz tuning 1 sec. TS TS 1 sec. momentarily USB 1 Hz tuning Appears USB Appears Rotate DIAL Selectable for each mode. • Sub dial function The sub dial function allows you to change the operating frequency using the [M-CH] control.
BASIC OPERATION 3 • Quick band change function The quick band change function automatically stores the last frequency and mode used for each band in a band stacking register. This is convenient for contest operation, etc. The tables below show the quick band change default settings for each band. q Select S3. • Push [DISPLAY] once or twice to select S. • Push [MENU] one or more times to select S3. w Push [F-1], [F-2] or [F-3] to select a band stacking register.
3 BASIC OPERATION ■ Operating mode selection The following modes are available in the IC-703: SSB (LSB/USB), CW, CW-å (CW reverse), RTTY and åRTTY (RTTY reverse), FM, AM. [MODE] • SSB (LSB/USB), CW, RTTY, SSB-D, FM and AM modes selection To select the desired mode of operation, push [MODE] one or more times, then push [MODE] for 1 sec., if necessary. See the diagram at right for the order of selection. • The selected mode is indicated in the function display.
BASIC OPERATION 3 ■ Squelch and receive (RF) sensitivity Adjusts the RF gain and squelch threshold level. The squelch removes noise output from the speaker (closed position) when no signal is received. [RF/SQL] • The squelch is particularly effective for FM mode. It is also available for other modes. • The control can be set as the RF gain control only (squelch is fixed open) or squelch control (RF gain is fixed at maximum) in initial set mode (p. 79). See below right.
3 BASIC OPERATION ■ Dial lock function The dial lock function prevents accidental changes caused by the tuning dial. ➥ Push [LOCK] to turn the dial lock function ON and OFF. • “LOCK” indicator lights while the dial lock function is activated. [LOCK] Lights while the dial lock function is activated. ■ Basic transmit operation D Transmitting Before transmitting, monitor your selected operating frequency to make sure transmitting won’t cause interference to other stations on the same frequency.
BASIC OPERATION D Setting output power 3 QUICK SET MODE q Push [DISPLAY] for 1 sec. to select quick set mode. w Push [MENU] one or more times to select “Q1 RF POWER.” e Rotate the main dial to select the desired output. Main dial • Output power is displayed in 11 steps (L, 1–9 and H) but is continuously selectable. r Push [DISPLAY] to exit quick set mode. • Available power Power supply voltage 13.8 V (DC power mode) 9.6 V (Battery mode) [MENU] SSB/CW RTTY/FM AM* 0.1–10 W 0.1–4 W 0.1–5 W 0.
4 RECEIVE AND TRANSMIT ■ Operating SSB q Push [(Y)BAND]/[(Z)BAND] to select the desired band. w Push [MODE] momentarily or push for 1 sec. to select LSB or USB mode. [AF] [TX] indicator [MODE] [Y] • Below 10 MHz LSB is automatically selected; above 10 MHz USB is automatically selected. e Rotate [AF] control to set audio to a comfortable listening level. r Rotate the main dial to tune a desired signal. • S-meter indicates received signal strength.
RECEIVE AND TRANSMIT 4 ■ Operating CW D Connections for CW Rear panel Keyer set mode setting CW [ACC] K4 CW PADDLE [KEY] Normal CW K4 CW PADDLE Reverse Paddle 4 CW 4 3 2 1 8 7 6 5 12 11 10 9 13 For no break-in operation: Connect an external switch such as a foot switch; or use the RTTY SEND terminal for all bands. (See p. 38) K4 CW PADDLE Bug CW Straight key K4 CW PADDLE CW [MICROPHONE] See p. 31 for connection details: Paddle operation from front panel MIC connector.
4 RECEIVE AND TRANSMIT D CW operation q Connect a paddle or straight key as at previous page. w Push [(Y)BAND]/[(Z)BAND] to select the desired band. e Push [MODE] momentarily to select CW mode. [AF] [TX] indicator [MODE] Main dial [Y] • After CW mode is selected, push [MODE] for 1 sec. to toggle between CW and Memory keyer modes. [Z] r While the quick set mode item “Q3” is selected in CW mode, rotate main dial to select CW or CWå mode. [MENU] • Push [DISPLAY] for 1 sec. to enter the quick set mode.
RECEIVE AND TRANSMIT 4 D Convenient functions for receive • Preamp and attenuator (p. 46) ➥ Push [P.AMP/ATT] momentarily to set the preamp ON or OFF. • Lights green when the preamp is set to ON. ➥ Push [P.AMP/ATT] for 1 sec. to set the attenuator ON. • Push [P.AMP/ATT] momentarily to turn the attenuator OFF. • Lights red when the attenuator is set to ON. • Noise blanker (p. 48) ➥ While “M3” is selected, push [(F-2)NB] to turn the noise blanker ON and OFF. • Push [DISPLAY] once or twice to select M.
4 RECEIVE AND TRANSMIT D CW pitch control The received CW audio pitch and monitored CW audio pitch can be adjusted to suit your preferences (300 to 900 Hz) without changing the operating frequency. q Enter the keyer set mode. • Push [DISPLAY] once or twice to select M. • Push [MENU] one or more times to select M4. • Push [(F-2)KEY] for 1 sec. to enter the keyer set mode. [MENU] w Push [MENU] one or more times to select “K3 CW PITCH,” then rotate the main dial to set the desired pitch.
RECEIVE AND TRANSMIT 4 D CW side tone function When the transceiver is in the receive condition (and the break-in function is OFF— below) you can listen to the tone of your CW signal without actually transmitting. This allows you to match your transmit signal exactly to another station’s. This also convenient for CW practice. CW side tone level can be adjusted in the initial set mode (p. 77). D Keyer set mode While M4 is selected in CW mode, push [(F-2)KEY] for 1 sec. to enter the keyer set mode.
4 RECEIVE AND TRANSMIT ■ Memory keyer functions The transceiver has a number of convenient functions for the electronic keyer that can be accessed from the memory keyer menu. q Select CW mode with [MODE]. w Push [MODE] for 1 sec. to select the memory keyer send menu. [MODE] • Push [MODE] momentarily to return to normal CW operating mode. e Push [DISPLAY] to enter the memory keyer menu. See the diagram below. • Push [DISPLAY] momentarily to return to the memory keyer send menu.
RECEIVE AND TRANSMIT 4 D Memory keyer send menu Pre-set characters can be sent using the memory keyer send menu. Contents of the memory keyer are set using the edit menu. [MODE] • Transmitting q Select CW mode with [MODE]. w Push [MODE] for 1 sec. to enter the memory keyer send menu. e Set the break-in function ON (p. 32). • When step r is performed during the break-in function OFF, monitors the memory keyer contents.
4 RECEIVE AND TRANSMIT D Editing a memory keyer The contents of the memory keyer memories can be set using the memory keyer edit menu. The memory keyer can memorize and re-transmit 3 CW key codes for often-used CW sentences, contest numbers, etc. Total capacity of the memory keyer is 50 characters per memory channel. [MODE] Main dial • Programming contents q Select CW mode with [MODE]. w Enter the memory keyer menu. • Push [MODE] for 1 sec. to enter the memory keyer send menu.
RECEIVE AND TRANSMIT 4 D Contest number set mode This menu is used to set the contest (serial) number and count up trigger, etc. • Setting contents q Select CW mode with [MODE]. w Enter the memory keyer menu. • Push [MODE] for 1 sec. to enter the memory keyer [MODE] Main dial send menu. • Push [DISPLAY] momentarily to enter the memory keyer menu. e Push [(F-2)001] to enter the contest number set [Y] mode. r Push [MENU] once or twice to select the desired set item. • [M-CH] or [Y]/[Z] can also be used.
4 RECEIVE AND TRANSMIT D Memory keyer set mode This set mode is used to set the memory keyer repeat time and indication type of the messages. • Setting contents q Select CW mode with [MODE]. w Enter the memory keyer menu. • Push [MODE] for 1 sec. to enter the memory keyer [MODE] Main dial send menu. • Push [DISPLAY] momentarily to enter the memory keyer menu. e Push [(F-3)SET] to enter the memory keyer set [Y] mode. r Push [MENU] to select the desired set item.
4 RECEIVE AND TRANSMIT ■ Operating RTTY D Connections for RTTY (FSK) Rear panel [ACC] TU or TNC Rear panel view Personal computer 4 3 2 1 8 7 6 5 12 11 10 9 13 MSEND (orenge) GND (red) FSKK (black) SQL*1 (light green) AF out (light blue) 4 *1Connect SQL line when required. Colors refer to connection to the supplied ACC cable. D RTTY (FSK) operation q Connect a terminal unit as at above. w Push [(Y)BAND]/[(Z)BAND] to select the desired band. e Push [MODE] momentarily to select RTTY mode.
4 RECEIVE AND TRANSMIT D Convenient functions for receive • Preamp and attenuator (p. 46) ➥ Push [P.AMP/ATT] momentarily to set the preamp ON or OFF. • Lights green when the preamp is set to ON. ➥ Push [P.AMP/ATT] for 1 sec. to set the attenuator ON. • Push [P.AMP/ATT] momentarily to turn the attenuator OFF. • Lights red when the attenuator is set to ON. • Noise blanker (p. 48) ➥ While “M3” is selected, push [(F-2)NB] to turn the noise blanker ON and OFF. • Push [DISPLAY] once or twice to select M.
RECEIVE AND TRANSMIT 4 D Presetting for RTTY Tone frequency q Push [MODE] momentarily to select RTTY mode. [MODE] Main dial • After RTTY mode is selected, push [MODE] for 1 sec. to toggle between RTTY and SSB-D modes. w Enter the RTTY tone set mode. • Push [DISPLAY] once or twice to select M. • Push [MENU] one or more times to select M4. • Push [(F-2)TON] for 1 sec. to enter the RTTY tone set mode (below).
4 RECEIVE AND TRANSMIT ■ Operating AM q Push [(Y)BAND]/[(Z)BAND] to select the desired band. w Push [MODE] momentarily or push for 1 sec. to select AM mode. [AF] [TX] indicator [MODE] [Y] • After FM or AM mode is selected, push [MODE] for 1 sec. to toggle between FM and AM modes. e Rotate [AF] control to set audio to a comfortable listening level. r Rotate the main dial to tune a desired signal. [Z] Main dial “AM” appears • S-meter indicates received signal strength.
4 RECEIVE AND TRANSMIT ■ Operating FM q Push [(Y)BAND]/[(Z)BAND] to select the desired band. w Push [MODE] momentarily or for 1 sec. to select FM mode. [AF] [TX] indicator [MODE] [Y] • After FM or AM mode is selected, push [MODE] for 1 sec. to toggle between FM and AM modes. e Rotate [AF] control to set audio to a comfortable listening level. r Rotate the main dial to tune a desired signal. [Z] Main dial “FM” appears • S-meter indicates received signal strength.
4 RECEIVE AND TRANSMIT D Tone squelch operation Tone squelch operation is a method of communications using selective calling. Only received signals having a matching tone will open the squelch. Before communicating using tone squelch, all members of your party must agree on the tone squelch frequency to use. [MODE] Main dial q Push [MODE] one or more times to select FM mode. w Select M4. [F-2] [DISPLAY] [MENU] FM • Push [DISPLAY] once or twice to select M.
RECEIVE AND TRANSMIT 4 D FM tone set mode While M4 is selected in FM mode, push [(F-2)TON] for 1 sec. to enter the FM tone set mode. T1 RPTR TONE This item selects a subaudible tone for FM-T mode operation to access a repeater. There are 50 tones available from 67.0 Hz to 254.1 Hz (see table at right). FM The default is 88.5 Hz. • Available subaudible tone frequencies (Unit: Hz) 085.4 088.5 091.5 094.8 097.4 100.0 103.5 67.0 69.3 71.9 74.4 77.0 79.7 82.5 107.2 110.9 114.8 118.8 123.0 127.3 131.
4 RECEIVE AND TRANSMIT ■ Repeater operation A repeater amplifies received signals and re-transmits them at a different frequency. When using a repeater, the transmit frequency is shifted from the receive frequency by an offset frequency. A repeater can be accessed using split frequency operation with the shift frequency set to the repeater’s offset frequency. [MODE] Main dial q Set the offset frequency and turn ON the quick split function in initial set mode in advance (pgs. 79, 80).
FUNCTION FOR RECEIVE 5 ■ Simple band scope This function allows you to visually “sweep” an area surrounding the set frequency for other signals. Detected signals are indicated graphically in the dot matrix section of the display. Main dial NOTE: Use the attenuator or turn OFF the preamp when using the band scope on a band containing a lot of noise. [F-1] [F-3] [MENU] [F-2] [DISPLAY] q Set a mode and frequency. w Select G1. • Push [DISPLAY] once or twice to select G.
5 FUNCTION FOR RECEIVE ■ RIT function The RIT (Receive Incremental Tuning) function compensates for off-frequencies of communicating stations. The function shifts the receive frequency up to ±9.99 kHz in 10 Hz steps without moving the transmit frequency. “21 SUB DIAL” item in initial set mode must be set to RIT mode in advance. (p. 79) q Push [RIT]. [M-CH] [RIT] • The [RIT] indicator lights red. w Rotate the [M-CH] control to cancel the off-frequencies. • The transmit frequency is not shifted.
FUNCTION FOR RECEIVE 5 ■ Noise blanker The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. This function is not effective for FM mode or for non pulsetype noise. If you don’t want to use the noise blanker for AM communications, the “30 AM NB” item in initial set mode must be turned OFF (ON is the default setting—p. 80). [MENU] q Select M3. • Push [DISPLAY] once or twice to select M. • Push [MENU] one or more times to select M3.
5 FUNCTION FOR RECEIVE ■ Optional filter selection One optional filter can be installed in the IC-703. Narrow filters help reject interference from adjacent signals and obtain good selectivity. NOTE: When selecting the narrow filter (or wide filter), the graphic passband is changed. (see diagram below) Wide filters provide improved audio for SSB operation when no interfering signals are present. Consult the table below to select a filter most suitable for your operating needs.
FUNCTION FOR RECEIVE ■ Peak meter hold 5 INITIAL SET MODE The peak meter hold function freezes the highest displayed bar segment in any meter function for about 0.5 sec. so that you can more easily read the meter. This function can be turned ON and OFF in initial set mode (item “23 PEAK HOLD” ; see p. 79). [EXAMPLE]: S1 3 5 7 9 20 40 60dB Initial reception of a signal results in an S-meter reading of 40 dB. S1 3 5 7 9 20 40 60dB The highest indicated bar remains displayed for about 0.
6 FUNCTION FOR TRANSMIT ■ Split frequency operation Split frequency operation allows you to transmit and receive on two different frequencies. Split frequency operation uses 2 frequencies, one in VFO A and the other in VFO B. Following is an example of setting 7.057 MHz, CW mode in VFO A (for receiving) and 7.025 MHz, CW mode in VFO B (for transmitting). [F-1] [F-3] [MENU] [F-2] [DISPLAY] Main dial q Select VFO A and set the frequency to 7.057 MHz/CW. • [(F-2)A/B] is available when M1 appears.
6 FUNCTION FOR TRANSMIT D Quick split function In M1, when you push [(F-1)SPL] for 1 sec., split frequency operation is turned ON and VFO B is automatically changed according to the plus/minus pre-programmed shift frequency set in initial set mode (or equalized when 0 kHz is programmed as the split shift frequency). This shortens the time needed to start split frequency operation—great for DX’ing. [F-1] [MENU] [DISPLAY] The quick split function is ON by default.
6 FUNCTION FOR TRANSMIT ■ VOX operation The VOX (Voice-operated Transmission) function toggles between transmit and receive with your voice. This function provides an opportunity to input log entries into your computer, etc., while operating. q Select M4. • Push [DISPLAY] once or twice to select M. • Push [MENU] one or more times to select M4. w Push [(F-1)VOX] to toggle the VOX function ON [F-1] [MENU] [DISPLAY] Main dail and OFF. • “VOX” appears when the function is ON.
FUNCTION FOR TRANSMIT 6 ■ Speech compressor 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. [MODE] q Select USB or LSB mode. w Select the mic gain display in quick set mode. • Push [DISPLAY] for 1 sec. • Push [MENU] one or more times to select “Q2 MIC GAIN.
6 FUNCTION FOR TRANSMIT ■ SWR D Measuring SWR The IC-703 has a built-in circuit for measuring antenna SWR—no external equipment or special adjustments are necessary. [MODE] The IC-703 can measure SWR in 2 ways: (A) Spot measurement; or (B) Plot measurement. (A) Spot measurement q Confirm that the output power is over 5 W. w Push [MENU] one or more times to select M3. e Push [(F-3)MET] to select the SWR meter. r Push [MODE] one or more times to select CW or RTTY operation.
7 MEMORY OPERATION ■ Memory channels The transceiver has 105 memory channels (includes 6 scan edge channels). Memory mode is useful for quickly changing to often-used frequencies. NOTE: During split frequency operation, programmed memory contents can be called up to the SUB readout (dot matrix portion of the display). All 105 memory channels are tuneable which means the programmed frequency can be tuned temporarily with the main dial, etc., in memory mode.
7 MEMORY OPERATION ■ Memory programming • Programming in VFO mode q Select M2 functions. • Push [DISPLAY] once or twice to select M. • Push [MENU] one or more times to select M2. w Set the desired frequency and operating mode in VFO mode. • If you want to program the split frequency function, program both receive and transmit frequencies into VFO A and B, then turn ON the split function. • If you want to program a repeater function, set a tone frequency (pgs.
7 MEMORY OPERATION ■ Memory clearing Any unnecessary memory channels can be cleared. The cleared memory channels become blank channels. q Select M2 functions. • Push [DISPLAY] once or twice to select M. • Push [MENU] one or more times to select M2. w Push [(F-3)V/M] to select memory mode. e Rotate [M-CH] to select a memory channel to be cleared. r Push [(F-2)MCL] for 1 sec. to clear the contents.
7 MEMORY OPERATION ■ Memory names All memory channels (including scan edges) can be tagged with alphanumeric names of up to 9 characters each. All common keyboard characters (ASCII characters 33 to 126) can be used, including numerals and punctuation marks. • Calling up memory names q Select the G4 display. • Push [DISPLAY] once or twice to select G. • Push [MENU] one or more times to select G4. w Select a memory channel with [M-CH].
7 MEMORY OPERATION ■ Memo pads The transceiver has a memo pad function to store frequency and operating mode for easy write and recall. The memo pads are separate from memory channels. The default number of memo pads is 5, however, this can be increased to 10 in initial set mode if desired (p. 80).
8 SCAN OPERATION ■ Scan types PROGRAMMED SCAN PRIORITY WATCH Repeatedly scans between two scan edge frequencies (scan edge memory channels 1A and 1B). Checks for signals on a memory while operating on a VFO frequency. Scan Scan edge 1A or 1B Scan edge 1B or 1A VFO frequency Memory channel Jump This scan operates in VFO mode. This scan operates in VFO mode. MEMORY SCAN SELECTED MEMORY SCAN Repeatedly scans all programmed memory channels.
SCAN OPERATION 8 ■ Programmed scan operation q Select VFO mode. w Select the desired operating mode. • The operating mode can also be changed while scanning. e Set [SQL] open or closed. • See page a left for squelch condition. r Select S2. • Push [DISPLAY] once or twice to select S. • Push [MENU] one or more times to select S2. t Push [(F-1)SCN] to start the scan. • Decimal point blinks while scanning.
8 SCAN OPERATION ■ Select memory scan operation q Select memory mode. w Close the squelch with [SQL]. e Select S2. • Push [DISPLAY] once or twice to select S. • Push [MENU] one or more times to select S2. r Push [(F-1)SCN] to start the memory scan. • Decimal point blinks while scanning. t Push [(F-2)SEL] to change the memory scan to se- lect memory scan. [F-1] [MANU] [F-2] [DISPLAY] [SQL] • Push [(F-2)SEL] for 2 sec. to clear all select memory channels.
ANTENNA TUNER OPERATION 9 ■ Antenna tuner operation D Internal antenna tuner The internal automatic antenna tuner matches the transceiver to the connected antenna automatically. Once the tuner matches an antenna, the latching relays combination are memorized as a preset point for each frequency range (100 kHz steps). Therefore, when you change the frequency range, the latching relays are automatically preset to the memorized combination.
9 ANTENNA TUNER OPERATION D Optional external tuner operation The IC-703 automatically detects and selects an optional external tuner (AT-180/AH-4) when connected. In this case, the internal tuner switches to the through function. NOTE: When the connected power supply voltage is lower than 11.0 V, the transceiver automatically switches to the battery operating mode (power saving mode). In this case, the transceiver can not drive an external antenna tuner.
ANTENNA TUNER OPERATION 9 D Optional AH-4 AUTOMATIC ANTENNA TUNER operation The AH-4 matches the IC-703 to a long wire antenna more than 7 m/23 ft long (3.5 MHz and above). • See p. 16 for connection. • See the AH-4 instruction manual for AH-4 installation and antenna connection details. AH-4 operation Tuning is required for each frequency. Be sure to re-tune the antenna before transmitting when you change the frequency—even slightly. q Set the desired frequency in an HF band.
10 DATA COMMUNICATION ■ Connections for packet D When connecting to [DATA] socket SQ y RX AUDIO t AF OUT DATA OUT r SQL PTT e PTTP w TX AUDIO q DATA IN GND GND DATA TNC SIDE Rear panel RS-232C TU or TNC Personal computer D When connecting to [ACC] socket Rear panel [ACC] Rear panel view 4 3 2 1 8 7 6 5 12 11 10 9 13 TU or TNC MSEND (orenge) GND (red) SQL*1 (light green) AF in (pink) AF out (light blue) *1Connect SQL line when required.
10 DATA COMMUNICATION ■ Packet (AFSK) operation Before operating packet (AFSK) be sure to consult the operating manual that came with your TNC. [AF] [TX] indicator [MODE] Main dial [Y] q Connect a TNC and PC as left page. w Push [(Y)BAND]/[(Z)BAND] to select the desired band. e Push [MODE] momentarily to select SSB (LSB) mode (or select SSB-D mode). [Z] • After USB mode is selected, push [MODE] for 1 sec. to toggle between USB and LSB modes. • After RTTY mode is selected, push [MODE] for 1 sec.
10 DATA COMMUNICATION D SSB-D mode selection q Push [MODE] one or more times to select RTTY mode. w Push [MODE] for 1 sec. to SSB-D mode. [MODE] • After RTTY mode is selected, push [MODE] for 1 sec. to toggle between RTTY and SSB-D modes. NOTE: When SSB-D mode is selected, the audio input from the [MIC] connector is automatically cut, and the audio input from the [ACC] is used.
DATA COMMUNICATION 10 D Adjusting the transmit signal from the TNC NOTE: For packet operation the transceiver can be set to one of two data speeds: 1200 bps or 9600 bps. Data speed is set in initial set mode (item “36 9600 MODE”; see p.81). [POWER] [MODE] Main dial [Y] q Push [POWER] for 1 sec. to turn power OFF. w While pushing [LOCK], push [POWER] to turn power ON. • Initial set mode is selected and one of its items appears.
11 CONTROL COMMAND ■ Remote jack (CI-V) information D CI-V connection example 9–15 V DC The transceiver can be connected through an optional CT-17 CI-V LEVEL CONVERTER to a personal computer equipped with an RS-232C port. The Icom Communication interface-V (CI-V) controls the following functions of the transceiver. Up to four Icom CI-V transceivers or receivers can be connected to a personal computer equipped with an RS-232C port. See p. 82 for setting the CI-V condition using initial set mode.
CONTROL COMMAND 11 D Command table Command Sub command Description 00 — 01 Same as command 06 02 — Read band edge frequencies 03 — Read operating frequency 04 — Read operating mode 05 — Set operating frequency 06 00 01 02 03 04 05 07 08 Select LSB Select USB Select AM Select CW Select RTTY Select FM Select CW-R Select RTTY-R — 00 01 A0 B0 Select VFO mode Select VFO A Select VFO B Equalize VFO A and VFO B Exchange VFO A and VFO B 07 08 — 0001–0105* Send frequency data Command 14
11 CONTROL COMMAND Command table (continued) Command 1A 1B 1C Sub command Description 0314 Send/read RTTY marker frequency (0=1275 Hz, 1=1615 Hz, 2=2125 Hz) 0315 Send/read RTTY shift width (0=170 Hz, 1=200 Hz, 2=425 Hz) 0316 Send/read RTTY keying polarity (0=Normal, 1=Reverse) 0317 Send/read noise blanker level (0=min. to 255=max.) 0318 Send/read key type (0=Normal, 1=Reverse, 2=Bug, 3=OFF, 4=Mic. [UP]/[DN]) 0319 Send/read CW keyer dot/dash ratio (28=1:1:2.8 to 45=1:1:4.
SET MODE 12 ■ General Set mode is used for programming infrequently changed values or conditions of functions. The IC-703 has 2 separate set modes: quick set mode and initial set mode. D Quick set mode operation q While power is ON, push [DISPLAY] for 1 sec. • Quick set mode is selected and one of its items appears. • Quick set mode items vary depending on the selected operating mode (SSB, FM, etc.). [POWER] Main dial [Y] w Push [MENU] one or more times to select the desired item.
12 SET MODE ■ Quick set mode items Mode Set mode item Default setting SSB Q1 RF POWER Q2 MIC GAIN Q3 CARRIER Frq CW Q1 RF POWER Q2 KEY SPEED Q3 CW REV Q1 RF POWER H 5 level 0 [Hz] H 20 [WPM] n (normal) Mode Set mode item RTTY Q1 RF POWER Q2 RTTY REV H n (normal) SSB-D Q1 RF POWER Q2 CAR SIDE H L (LSB side) FM/AM Q1 RF POWER Q2 MIC GAIN H 5 level (all modes) The default is H (maximum power). This item adjusts the RF output power.
SET MODE 12 ■ Initial set mode items 1 MAX POWSET (Max. output power setting) This item selects maximum output power. The max. power is can be set 10, 5, 2.5, 1 or 0.5 W. 2 PoSAVE MODE The default is 10 W. (Power save setting) The power save mode reduces the current drain to conserve battery power. This function is convenience for battery operation. AUTO : The power save function starts in 1:1 (200 msec.:200 msec.) ratio when no signal is received for 5 sec., then the ratio becomes in 1:4 (200 msec.
12 SET MODE 6 BEEP (Confirmation beeps) A beep sounds each time a switch is pushed to confirm it. This function can be turned OFF for silent operation. Confirmation beep ON (default) Confirmation beep OFF Band beep ON (default) Band beep OFF * 7 BAND BEEP (Band edges beep) A beep sounds when an operating frequency enters or exits a transmit frequency range. This functions independent of the confirmation beep setting (above).
SET MODE * 13 SYNC TUNING 12 (SSB/CW frequency shift setting) This item selects the displayed frequency shift function from ON and OFF. When this function is activated, the receiving signal can be kept in receive even when the operating mode is changed between SSB and CW. oN : The displayed frequency shifts when the operating mode is changed between SSB and CW. oFF: The displayed frequency does not shift.
12 SET MODE 19 CURRENT IP (Current intercept point) This item set the control of current intercept point for power saving. Default is Auto. Auto: Automatically select “on” or “oFF” depends on power supply voltage. (default) on : Power saving mode continuously. oFF : Priority to intercept point.
SET MODE * 25 SPLIT LOCK (Split lock function) When this item is ON, the main dial can be used to adjust the transmit frequency while pushing [(F-3)XFC] even when the lock function is activated. 26 SPL OFFSET 12 Split lock function OFF (default) Split lock function ON (Split offset frequency) This item sets the offset (difference between transmit and receive frequencies) for the quick split function. Available offset frequencies are –9.999 to 9.999 MHz in 0.001 MHz (1kHz) steps.
12 SET MODE 32 PWR ON CHK (Power on check function) This item selects the indication ON or OFF when turning power ON. on : The Transceiver briefly displays ‘All indication,’ ‘RF power’ and ‘Power supply voltage’ when turning power ON. oFF: The display goes directly to frequency indication at power ON.
SET MODE 37 SPEECH LANG (Voice synthesizer language) When the optional UT-102 VOICE SYNTHESIZER UNIT is installed, you can select between English and Japanese as the language. 38 SPEECH SPD 40 CI-V ADDRES Speech speed is slower. Voice synthesizer reads out Voice synthesizer reads both the frequency/mode out the frequency/mode and S-meter level (default). only. Address set to 68H (default). Address set to 7FH.
13 MAINTENANCE ■ Fuse replacement If a fuse blows or the transceiver stops functioning, try to find the source of the problem, and replace the damaged fuse with a new, rated fuse. CAUTION: Disconnect the DC power cable from the transceiver when changing a fuse. DC POWER CABLE FUSE REPLACEMENT q w e The IC-703 has three of fuses (DC power cable fuses× 2, circuitry fuse × 1) installed for transceiver protection. • Fuses ............................................. F.G.B.
TROUBLESHOOTING The following chart is designed to help you correct problems which are not equipment malfunctions. POWER SUPPLY PROBLEM Power does not come on when the [POWER] switch is pushed. If you are unable to locate the cause of a problem or solve it through the use of this chart, contact your nearest Icom Dealer or Service Center. POSSIBLE CAUSE DC power connected. cable is 14 improperly Fuse is blown. SOLUTION Reconnect the power cable correctly. REF. p.
14 TROUBLESHOOTING SCAN DISPLAY TRANSMIT PROBLEM 85 POSSIBLE CAUSE SOLUTION REF. Transmitting is impossible. The operating frequency is not set to a ham band. Set the frequency to a ham band. Output power is too low. Power is set to a lower power than maximum. Set the output power in quick set pgs. 25, 26 mode/initial set mode. Microphone gain is set too low. Set microphone gain to a suitable p. 26 position using quick set mode. The antenna is not connected properly.
OPTION UNIT INSTALLATIONS AND SETTINGS ■ Opening the transceiver case To remove the transceiver case unscrew the 18 screws (5 in the top panel, 5 in the bottom panel, 8 in the side panels: 4 pieces each) as shown in the diagram below. 15 Caution: Disconnect the DC power cable from the transceiver before performing any work on the transceiver. Top cover Speaker cable Bottom cover ■ UT-102 VOICE SYNTHESIZER UNIT The UT-102 announces the accessed band’s frequency, mode, etc.
15 OPTION UNIT INSTALLATIONS AND SETTINGS ■ IF filter Several IF filters are available for the IC-703. Choose a filter most appropriate to your operating needs. r Install the desired filter as shown in the diagram below. NOTE: After filter installation, specify the installed filter using initial set mode (item 22, p.79). Otherwise, the installed filter will not function properly.
OPTION UNIT INSTALLATIONS AND SETTINGS 15 ■ UT-106 DSP RECEIVER UNIT q Open the transceiver top cover as shown on p. 86. w Remove the 4-pin connector (P2451) from main CPU shielding case on the MAIN unit (top side) and plug it into J1 of the UT-106. Front side P1 (UT-106) UT-106 J2451 J2451 J3 Flat cable J1 Front side MAIN unit (top side) P2451 Main CPU shielding case J2453 P2451 e Plug the 4-pin connector (P1) from the UT-106 into J2451 on the MAIN unit.
15 OPTION UNIT INSTALLATIONS AND SETTINGS ■ AT-180 internal switch description The optional AT-180 has 3 operating conditions for HF band operation. Select a suitable condition according to your antenna system. q Remove the top cover of the AT-180. w Set the tuner switches to the desired positions according to the table below. SW Position Operation The tuner operating condition is set by S2 (default) described below.
SPECIFICATIONS ■ General • Frequency coverage : Receive 30 kHz – 60.00000 MHz* Transmit 1.800 – 1.99999 MHz* 3.500 – 3.9999 MHz* 7.000 – 7.300 MHz* 10.100 – 10.150 MHz 14.000 – 14.350 MHz 18.068 – 18.168 MHz 21.000 – 21.450 MHz 24.890 – 24.990 MHz 28.000 – 29.700 MHz 50.000– 54.000 MHz* *Depending on version.
17 OPTIONS AT-180 HF/50 MHz AUTOMATIC ANTENNA TUNER AH-4 HF AUTOMATIC ANTENNA AH-2b ANTENNA ELEMENT TUNER A 2.5 m long antenna element for mobile operation with the AH-4. • Frequency coverage 7–54 MHz band with the AH-4 Fully automatic antenna tuner with preset memories for each 100 kHz. Unique “automatic tuner on” function is available. See p. 89 for AT-180 specifications. Specially designed to tune a long wire antenna for portable or mobile HF/50 MHz operation.
OPTIONS MB-65 MOUNTING BASE MB-72 CARRYING HANDLE 17 OPC-581/587 SEPARATION CABLE Allows you to conveniently vehicle-mount the front panel of the IC-703. An MB-63 must be used in combination with the MB65. Convenient when carrying the transceiver. Provide front panel detached operation for mobile installations or compact transceiver operation. • OPC-581: 3.5 m (11.5 ft) • OPC-587: 5 m (16.
18 LOCK MENU GUIDE + power ON Power OFF then ON to exit initial set mode. Initial set mode MENU Y Z No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Indication MAX POWSET PoSAVE MODE SIMPLE MODE MODE SELECT MODE POWSET BEEP BAND BEEP BEEP LEVEL BEEP LIMIT CW NOR SIDE SID-T LEVEL SID-T LIMIT SYNC TUNING BACK LIGHT KEY LIGHT LIGHT TIMER LED BRIGHT AUTO OFF 19 20 21 22 CURRENT IP RF/SQL SUB DIAL OPT.
MENU GUIDE M1 SPL A/B XFC DISPLAY M2 MW MCL V/M M3 FIL NB MET M4 VOX COM AGC (SSB/AM) M4 1/4 KEY AGC M4 1/4 TON AGC (RTTY) M4 1/4 M4 VOX MENU MENU MPW S2 SCN PRI SEL MPR V/M (in memory mode) S3 7 14 21 S4 ANF NR NRL DISPLAY (CW) AGC (SSB-D) COM MW DISPLAY MENU TON (FM) DISPLAY DISPLAY G1 BAND scope G2 SWR Graph G3 TX freq. G4 Memory name For 1 sec.
19 ABOUT CE INSTALLATION NOTES For amateur base station installations it is recommended that the forwards clearance in front of the antenna array is calculated relative to the EIRP (Effective Isotropic Radiated Power). The clearance height below the antenna array can be determined in most cases from the RF power at the antenna input terminals. EIRP clearance heights by frequency band 1 Watts 2.1 m 10 Watts 2.8 m 25 Watts 3.
ABOUT CE 19 DECLARATION OF CONFORMITY 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. Kind of equipment: HF/50 MHz ALL MODE TRANSCEIVER Type-designation: i703 Düsseldorf 14th Mar.
IC-703 #02, #12 (Europe) HF+50 M ■ GER ■ FRA ■ ESP ■ SWE ■ AUT ■ NED ■ POR ■ DEN ■ GBR ■ BEL ■ ITA ■ FIN ■ IRL ■ LUX ■ GRE ■ SUI ■ NOR IC-703 #10, #20 (Italy) HF only ■ GER ■ FRA ■ ESP ■ SWE ■ AUT ■ NED ■ POR ■ DEN ■ GBR ■ BEL ■ ITA ■ FIN ■ IRL ■ LUX ■ GRE ■ SUI ■ NOR A-6241H-1EX-q Printed in Japan © 2003 Icom Inc.
