Icom ic-718 Instruction Manual
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Icom ic-718 Instruction Manual

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INSTRUCTION MANUAL
HF ALL BAND TRANSCEIVER
i718

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  • Page 1 INSTRUCTION MANUAL HF ALL BAND TRANSCEIVER i718...

  • Page 2: Explicit Definitions

    Human Radio Frequency Electromagnetic Fields OFF and remove the power cable if it emits an abnor- (OET Bulletin 65). mal odor, sound or smoke. Contact your Icom dealer or distributor for advice. R WARNING! NEVER operate the radio while CAUTION: NEVER driving a vehicle.

  • Page 3: Fcc Information

    CAUTION: Changes or modifi cations to this device, not expressly approved by Icom Inc., could void your BE CAREFUL! The heatsink will become hot when...

  • Page 4: Supplied Accessories

    SUPPLIED ACCESSORIES The transceiver comes with the following accessories. Qty. q DC power cable ........... 1 w Hand microphone (HM-36) ......... 1 e Fuse (FGB 4 A; internal fuse) ......1 r Fuse (ATQ 25 A; for DC cable) ......2...

  • Page 5: Table Of Contents

    TABLE OF CONTENTS IMPORTANT ............i 8 SET MODE ..........41–47  General ............41 EXPLICIT DEFINITIONS .......... i  Quick Set mode items ....... 42-43 PRECAUTIONS ............. i–ii  Initial Set mode items ........ 44-47 FCC INFORMATION ..........ii SUPPLIED ACCESSORIES ........

  • Page 6: Panel Description

    PANEL DESCRIPTION  Front panel Speaker Function Display IC-718 MODE M-CL F-INP COMP RF/SQL SHIFT PHONES P.AMP TUNER LOCK Z DN UP Y q POWER SWITCH [PWR] u IF SHIFT CONTROLS [SHIFT] ➥ Push momentarily to turn ON the power.
  • Page 7 PANEL DESCRIPTION !2 MEMORY CHANNEL (BAND) UP/DOWN !9 QUICK TUNING STEP SWITCH [TS] (pp. 18, 19) SWITCHES [√ DN]/[UP ∫] (p. 35) ➥ Selects a Quick Tuning step or turns OFF the ➥ Push one or more times to select a Memory Quick Tuning step.
  • Page 8 PANEL DESCRIPTION  Front panel (continued) MODE FILTER M=CL M=CL F-INP F-INP COMP P.AMP TUNER @2 VFO/MEMORY SWITCH/1 [V/M•1] (pp. 16, 35) @8 SCAN SWITCH/8 [SCAN•8] (p. 39) ➥ Push to start or stop the Programmed Scan in Push to toggle the operating mode between VFO and Memory.

  • Page 9: Function Display

    PANEL DESCRIPTION  Function display q LOCK ICON (p. 19) o SIGNAL/SQL/RF-GAIN METER ➥ Displays the signal strength while receiving. Displayed when the Dial Lock function is in use. ➥ Displays the relative output power, ALC, or SWR w RECEIVE ICON levels while transmitting.

  • Page 10: Rear Panel

    TUNER CONTROL SOCKET [TUNER] (p. 14) i ALC INPUT JACK [ALC] Connects to the control cable from an optional AH-4 Connects to the ALC output jack of a non-Icom lin- AUTOMATIC ANTENNA TUNER ear amplifi er. r CI-V REMOTE CONTROL JACK [REMOTE] (p. 57) o SEND CONTROL JACK [SEND] (p.

  • Page 11: D Acc Socket Information

    When the diode is added, a switching delay of the relay may occur. Be sure to check its switching action before operation. [Example] Switching diode To a non-Icom socket linear amplifier eSEND Relay i13.8V...

  • Page 12: Microphone (Hm-36)

    Main readout squelch switch short pin 2 to ground as this can damage the internal 8 V regulator. DC voltage is also applied to pin 1 for microphone operation. Use caution when using a non-Icom microphone. • HM-36 SCHEMATIC DIAGRAM Microphone Microphone Plug 22 kø...

  • Page 13: Installation And Connections

    For a description and a diagram of accessory equip- antenna, and feedline. A Voltage Standing Wave Ratio ment included with the IC-718, see ‘Supplied accesso- (VSWR) of 1.5:1 or less is recommended for your desired ries’ on page 1 of this manual.

  • Page 14: Required Connections

    INSTALLATION AND CONNECTIONS  Required connections • Front panel (Microphone) i718 MICROPHONES (p. 55) MODE M-CL F-INP COMP RF/SQL SHIFT PHONES TUNER P.AMP LOCK HM-36 SM-30 SM-50 • Rear panel (Basic connection) DC POWER SUPPLY ANTENNA (p. 56) [Example]: 1.8 to 30 MHz bands AH-710 PS-126 GROUND (p.

  • Page 15: Advanced Connections

    PC to [REMOTE]. with AH-2b or a long wire ANTENNA (p. 13) Connects a liner amprifier, and so on. ACC SOCKET (p. 7) EXTERNAL SPEAKER (p. 55) [SEND], [ALC] (p. 14) Used to connect to a non-Icom linear ampli- fier. SP-23 (Option)

  • Page 16: Connecting The Power Supply

    DC POWER SUPPLY w • The [POWER] switch is OFF. erating the IC-718 with AC power. Refer to the dia- • Output voltage of the power source is 12 to 15 V grams below. when you use a non-Icom power supply.

  • Page 17: Connecting A Liner Amplifi Er

    IC-718 Ground To an AC outlet Non-European versions: 100 V to 120 V/220 V to 240 V European version: 230 V CONNECTING A NON-ICOM LINER AMPLIFIER R WARNING! To an 50 Ω coaxial cable antenna Set the transceiver output power and linear amplifier...

  • Page 18: External Antenna Tuners

    INSTALLATION AND CONNECTIONS  External antenna tuners CONNECTING THE AH-4 (p. 30) Long wire or optional AH-2b Coaxial cable (from the AH-4) Control cable IC-718 AH-4 Ground Ground CONNECTING THE AH-740 (p. 30) Coaxial cable and control cable connections Coaxial cable (from the AH-740)

  • Page 19: Frequency Settings

    FREQUENCY SETTINGS  Resetting the CPU Before fi rst applying power, make sure all connections required for your system are complete by referring to Chapter 3. Then, reset the transceiver using the fol- lowing procedure. A resetting CLEARS all Memory channel program- ming and returns all Quick Set mode and Initial Set [Z DN] [UP Y] [PWR]...

  • Page 20: Vfo Description

    [MODE] switch or call up previously accessed frequen- cies and modes with the Band Stacking Register. (p. The IC-718 has two VFOs, VFO A and VFO B, es- pecially suited for split frequency operation. You can easily use an operating frequency.

  • Page 21: Frequency Setting

    • For general coverage receiver use q Push [UP ∫] or [√ DN] one or more times to se- The IC-718 has a general coverage receiver band. q Push [UP ∫] or [√ DN] one or more times to se- lect a desired ham band.

  • Page 22: D Band Stacking Register

    General 15.10000 MHz D Band selection All HF ham bands and a general coverage receiver band are included in the IC-718. ➥ Push [UP ∫] or [√ DN] to select a desired band. [UP ∫] • Holding down or [√ DN] continuously scrolls through the selectable bands.

  • Page 23: Dial Lock Function

    FREQUENCY SETTINGS D 1 Hz and 10 Hz tuning steps When the programmable tuning step, “,” disap- pears, rotating [MAIN DIAL] changes the frequency in Rotating [MAIN DIAL] changes the frequency increments of 1 or 10 Hz. in 10 Hz steps. q Push [TS] one or more times until “”...

  • Page 24: Receive And Transmit

    RECEIVE AND TRANSMIT  Mode selection You can use the following modes in the IC-718: OPERATING MODE SELECTION SSB (LSB/USB), CW, CW REV (CW reverse), RTTY, RTTY REV (RTTY reverse) and AM. ➥ Push [MODE] one or more times to select the de- MODE sired operating mode.

  • Page 25: Function For Receive

    RECEIVE AND TRANSMIT  Function for receive ï IF shift function The IF shift function electronically narrows the pass- IF SHIFT OPERATION EXAMPLE band frequency of the intermediate frequency (IF) and • Adjust the [SHIFT] control for minimum interfer- cuts out higher or lower frequency components of the ence.

  • Page 26: Noise Blanker

    RECEIVE AND TRANSMIT ï Attenuator The attenuator prevents desired signals from distort- ing when the receive signal is very strong or when very strong electric fi elds, such as from broadcasting sta- tions, are near your location. ➥ Each push of [ATT] toggles the 20 dB attenuator Appears when the function ON or OFF.

  • Page 27: Dsp Function

    RECEIVE AND TRANSMIT  DSP function (Requires an optional UT-106 DSP UNIT ï NR (Noise Reduction) function When an optional UT-106 is installed, the Noise Re- • Noise Reduction example duction function can be used. Also, DSP appears in the Function display. Noise Reduction OFF Noise Reduction activated Noise components...

  • Page 28: Filter Selection

    RECEIVE AND TRANSMIT  Filter selection The fi lter selection adjusts the IF bandpass width, as • Optional fi lter variations shown in the table to the right. Name Band width Mode The filter selection is automatically memorized in each mode. FL-52A †...

  • Page 29: Filter Setting

    RECEIVE AND TRANSMIT  Filter setting When an optional fi lter is installed, set the optional fi l- • Optional fi lter selection ters in the initial Set mode. Optional fi lters are not se- lected by default. (p. 47) D Optional fi...

  • Page 30: Split Frequency Operation

    To exchange the transmit and receive frequencies, push [A/B].  SWR The IC-718 has a built-in circuit to measure antenna SWR— no external equipment or special adjustments are necessary. ï Measuring SWR q Confi rm that the output power is over 30 W.

  • Page 31: Function For Transmit

    RECEIVE AND TRANSMIT  Function for transmit ï Output power and microphone gain • Setting the output power q Hold down [SET] for 1 second to select the Quick Set mode. Maximum output w Push [UP ∫]/[√ DN] one or more times to select power is selected.

  • Page 32: Vox Operation

    RECEIVE AND TRANSMIT ï Microphone compressor The IC-718 has a built-in, low distortion mic compres- sor circuit. This circuit increases your average talk power in the SSB mode, and is especially useful for DX’ing when the receiving station is having diffi culty receiving your signal.
  • Page 33 AUTOMATIC ANTENNA TUNER The AT-180 automatic antenna tuner automatically • MANUAL TUNING matches the IC-718 to the antenna. Once the tuner During SSB operation at low voice levels, the AT-180 matches the antenna, the tuning settings are memo- may not tune correctly. In such cases, manual tun- rized as a preset point for each frequency range (100 ing is helpful.

  • Page 34: Optional External Tuner Operation

    Set the desired frequency in an HF band. • See the AH-4 instruction manual for AH-4 installa- • The IC-718 will not transmit outside of the ham bands. tion and connection details. w Hold down [TUNER] for 1 second.

  • Page 35: Function For Cw

    RECEIVE AND TRANSMIT  Function for CW ï Connection for CW Initial set mode setting (p. 45) 9 10 11 12 1 2 3 4 : normal [ELEC KEY] You can switch TX/RX with an Paddle external switch through pins 2 [ACC] and 3 on the ACC connector, : reverse...

  • Page 36: Cw Pitch Control

    CW mode (USB side) CW REV mode (LSB side) ï Electronic CW keyer The IC-718 has an electronic keyer installed. Both KEYING WEIGHT EXAMPLE: morse code “K” keying speed and weight (the ratio of dot : space : dash) can be set in the Quick Set mode.

  • Page 37: Function For Rtty

    RECEIVE AND TRANSMIT  Function for RTTY ï Connection for RTTY (FSK) Rear panel TU or TNC 2 conductor 3.5 mm ( ”) plug Use either the ACC or one of the two plugs. Rear panel view SQL* 9 10 11 12 AF out SEND 5 6 7 8...

  • Page 38: Receive And Transmit

    RECEIVE AND TRANSMIT ï RTTY (FSK) operation q Connect a terminal unit as described on page 34. w Select the RTTY (or RTTY-R) mode by pushing RTTY mode is selected. [MODE]. e Select the desired mark and shift frequencies as described below.

  • Page 39: Memory Operation

    MEMORY OPERATION  Memory channels The transceiver has 101 Memory channels. The Mem- All 101 Memory channels are tunable, which means ory mode is very useful for quickly changing to often- the entered frequency can be tuned temporarily with used frequencies. [DIAL] in the Memory mode.

  • Page 40: Memory Channel Entry

    MEMORY OPERATION  Memory channel entry Memory channel entry can be performed either in the VFO mode or in the Memory mode. D Entering data in the VFO mode [EXAMPLE]: Entering 7.086 MHz/LSB into Memory channel 10. q Set a desired frequency and operating mode in the VFO mode.

  • Page 41: Transferring Data To The Vfo

    MEMORY OPERATION  Transferring data to the VFO The frequency and operating mode in a Memory chan- Transferring data can be performed in either the VFO nel can be transferred to the VFO. or Memory mode. D Transferring in VFO mode TRANSFERRING EXAMPLE IN THE VFO MODE Operating frequency: 21.320 MHz/USB (VFO)

  • Page 42: Memory Clearing

    MEMORY OPERATION D Transferring in the Memory mode TRANSFERRING EXAMPLE IN MEMORY MODE Operating frequency: 14.020 MHz/CW (M-ch 16) This is useful for transferring frequency and operating Contents of M-ch 16: 14.018 MHz/CW mode while operating in the Memory mode. When you have changed the frequency or operat- ing mode in the selected Memory channel: •...

  • Page 43: Scans

    SCANS  Scan types PROGRAMMED SCAN MEMORY SCAN Repeatedly scans between two scan edge frequencies Repeatedly scans all programmed memory channels. (scan edge memory channels P1 and P2). BLANK Scan edge Scan edge Mch 2 Mch 3 Mch 4 P1 or P2 P2 or P1 Mch 1 Mch 5...

  • Page 44: Programmed Scan Operation

    SCANS  Programmed scan operation q Select the VFO mode by pushing [V/M]. w Select the desired operating mode. • The operating mode can also be changed while scan- ning. e Set [RF/SQL] open or closed. • See the previous page for scan details. •...

  • Page 45: Set Mode

    SET MODE  General [DIAL] The Set mode is used for programming infrequently changed values or conditions of functions. The IC-718 has 2 separate set modes: Quick Set mode and Initial [SET] Set mode. [Z DN] [UP Y] D Quick Set mode operation q While power is ON, hold down [SET] for 1 second.

  • Page 46: Quick Set Mode Items

    SET MODE  Quick Set mode items • RF power This item adjusts the RF output power. The RF output power can be adjusted from L, 1 to 99 and H. •The default is H (maximum power). Note that while adjusting the output power, the power meter is automatically displayed.
  • Page 47 SET MODE • BK-IN delay This item adjusts break-in delay time for CW semi break- in operation from 2.0 to 13 (dots). The default is 7. • Key speed This item adjusts the CW keying speed from 6 to 60* wpm.

  • Page 48: Initial Set Mode Items

    SET MODE  Initial Set mode items • Mode select This item allows you to simplify operation by inhibiting any unneeded operating modes. For example if you only use the LSB and USB modes, use “MODE SELECTION” to inhibit access to all other modes (CW, RTTY and AM), therefore selecting LSB and USB is quick and easy.
  • Page 49 SET MODE • Meter peak hold This item selects meter peak hold function ON or OFF. The default is “on” (ON). • Scan speed This item sets the speed at which channels or frequencies are scanned during scan operations. High or Low can be selected.
  • Page 50 SET MODE • Tuner type This item selects optional antenna tuner type. Select from the following options. • no: No optional tuner connected. • 4: The optional AH-4 antenna tuner. ( Select this type also when using the optional AH-740.) •...
  • Page 51 When connecting the IC-718 to the IC-735 for transceive operation, you must change the operating frequency data to 4 bytes. • This item MUST be set to “on” when operating the IC-718 with the IC-735. The default is “oF” (OFF).

  • Page 52: Installation And Connections

    CAUTION: DISCONNECT the DC power cable from the IC-718 before performing any work on the transceiver. Otherwise, there is danger of electric shock and/or equipment damage. q Remove the 5 screws from the top of the trans- ceiver and 4 screws from the sides, then lift up the top cover.

  • Page 53: High Stability Crystal Unit

    INSTALLATION AND CONNECTIONS  CR-338 HIGH STABILITY CRYSTAL UNIT r Remove the supplied internal crystal and replace it The CR-338 improves the total frequency stability of the receiver. with the CR-338. t Return the PLL unit, plugs and fl at cables to their Installation original positions.

  • Page 54: Dsp Receive Unit

    INSTALLATION AND CONNECTIONS  UT-106 DSP RECEIVE UNIT The UT-106 provides AF DSP functions such as Turn the unit over noise reduction and auto notch. flat cable Installation q Remove the bottom cover. P 2601 UT-106 w Slide the insulating case onto the UT-106 as shown to the right.

  • Page 55: Internal Switch

    INSTALLATION AND CONNECTIONS  AT-180 INTERNAL SWITCH The optional AT-180 has 3 operating settings. Select the suitable setting for 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 •...

  • Page 56: Maintenance

    The following chart is designed to help you correct If you are not able to locate the cause of a problem problems which are not equipment malfunctions. or solve it through the use of this chart, contact your nearest Icom Dealer or Service Center. PROBLEM POSSIBLE CAUSE SOLUTION REF.

  • Page 57: Fuse Replacement

    Turn the power OFF and disconnect the DC power cable from the transceiver before re- moving the transceiver’s cover. The IC-718 has 2 types of fuses installed for trans- 25 A fuse ceiver protection. • DC power cable fuses …………………… ATQ 25 A •...

  • Page 58: Specifications

    SPECIFICATIONS D General • Spurious emissions: Less than –50 dB below peak • Frequency coverage: Receive output power 0.03–29.999999 MHz* Transmit • Carrier suppression: More than 40 dB 1.800– 1.999999 MHz* • Unwanted sideband: More than 50 dB 3.500– 3.999999 MHz* •...

  • Page 59: Options

    OPTIONS IC-PW1/EURO HF + 50 MHz 1 KW AT-180 HF + 50 MHz LINER AMPLIFIER AUTOMATIC ANTENNA TUNER Full-duty 1 kW linear am- plifi er including an auto- matic antenna tuner. Has automatic tuning and band selection capabil- ity. Full break-in (QSK) operation is possible.

  • Page 60: Options

    OPTIONS UT-106 MB-23 MB-118 DSP RECEIVE UNIT CARRYING HANDLE MOBILE MOUNTING BRACKET Carrying handle, convenient for porta- For mounting the transceiver in a ve- Provides AF DSP functions such as ble operation. hicle. noise reduction and auto notch. AH-710 CT-17 CR-338 FOLDED DIPOLE ANTENNA V LEVEL CONVERTER...

  • Page 61: Control Command

    CONTROL COMMAND  Remote jack (CI-V) information • CI-V connection example IC-718 Up to 4 Icom CI-V transceivers or receivers can be connected through an optional CT-17 CI-V LEVEL 9–15 V DC to a personal computer with an RS-232C CONVERTER port or through a RS-232 to USB converter.

  • Page 62: Control Command

    CONTROL COMMAND • Command table Command Sub command Description — Send frequency data — Send mode data — Read Upper/Lower frequencies — Read frequencies — Read operating mode — Set operating frequency — Set mode — Set VFO Set VFO A Set VFO B VFO A=B VFO A...

  • Page 63: Installation Notes

    INSTALLATION NOTES For amateur base station installations, it is In all cases any possible risk depends on the transmit- recommended that the forwards clearance in front of ter being activated for long periods. (actual recommen- the antenna array is calculated relative to the EIRP dation limits are specifi...

  • Page 64: Index

    Front panel (Microphone and headphones).... 11 Connecting an antenna ..........9 Function display ............5 Function for CW ............31 CONNECTING A NON-ICOM DC POWER SUPPLY ..CONNECTING A NON-ICOM LINER AMPLIFIER . 13 Function for receive ..........21 CONNECTING A VEHICLE BATTERY ....12 Function for RTTY ..........
  • Page 65 INDEX IF shift function ............21 Optional fi lter setting ..........25 IF SHIFT OPERATION EXAMPLE ......21 Optional fi lter variations .......... 24 IMPORTANT ............. ii Optional IF fi lters ............ 50 Initial Set mode items ..........44 OPTIONS ............... 55 Initial Set mode operation ........

  • Page 66: Index

    INDEX Side-tone level ............44 SPECIFICATIONS ..........54 Speech language ............ 46 Speech S-meter level ..........46 Speech speed ............46 Split frequency operation ........26 Squelch condition (Scan) ........39 SUPPLIED ACCESSORIES ........iv SWR ..............26 TABLE OF CONTENTS ..........1 Through inhibit ............
  • Page 67 MEMO...
  • Page 68 MEMO...
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  • Page 71 MEMO...
  • Page 72 IC-718 #43 < Intended Country of Use > (Europe) A-5649D-1EX-i Printed in Japan © 2000–2015 Icom Inc. 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan Printed on recycle paper with soy ink.

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