Icom IC-718 Instruction Manual
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Icom IC-718 Instruction Manual

Icom hf all band transceiver instruction manual
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INSTRUCTION MANUAL
HF ALL BAND TRANSCEIVER
i718

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Summary of Contents for Icom IC-718

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

  • Page 2: Explicit Definitions

    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-718 may damage the transceiver. DEFINITION...

  • Page 3: Table Of Contents

    IMPORTANT ... i EXPLICIT DEFINITIONS ... i PRECAUTIONS ... i 1 TABLE OF CONTENTS ... 1 SUPPLIED ACCESSORIES ... 1 2 PANEL DESCRIPTION ... 2–8 n Front panel ... 2 n Function display ... 5 n Rear panel ... 6 n Microphone (HM-36) ...

  • Page 4: Panel Description

    PANEL DESCRIPTION n Front panel Speaker IC-718 PHONES q POWER SWITCH [PWR]  Push momentarily to turn power ON. • Turn the optional DC power supply ON in advance.  Push for 1 sec. to turn power OFF.  While pushing and holding [SET], push [PWR] to enter the initial set mode.
  • Page 5 • Push several times (or push and hold) [√ DN]/[UP ∫] until desired memory channel appears. • After pushing [F-INP/ENT], push desired memory channel number from the keypad, then push [FINP/ ENT] again to select the memory channel directory. • Push [CH] to exit the memory channel select function. !2 MEMORY CHANNEL (BAND) UP/DOWN SWITCHES [√...
  • Page 6 PANEL DESCRIPTION n Front panel MODE FILTER SHIFT LOCK @2 VFO/MEMORY SWITCH/1 [V/M•1] (pgs. 16, 35)  Toggles the operating mode between VFO mode or memory mode when pushed. @3 MEMORY WRITE SWITCH/4 [MW•4] (p. 36)  Stores the displayed frequency and operating mode into the selected memory channel when pushed for 1 sec.

  • Page 7: Function Display

    n Function display q LOCK INDICATOR (p. 19) Appears when the dial lock function is in use. w RECEIVE INDICATOR Appears while receiving a signal or when the squelch is open. e TUNE INDICATOR Appears while the automatic tuning function is activated.

  • Page 8: Rear Panel

    When connecting a paddle i ALC INPUT JACK [ALC] Connects to the ALC output jack of a non-Icom linear amplifier. o SEND CONTROL JACK [SEND] (p. 14) Goes to ground while transmitting to control external equipments such as a liner amplifier.
  • Page 9 D ACC SOCKET INFORMATION • ACC socket PIN # NAME Regulated 8 V output. Connects to ground. Input/output pin. Goes to ground when transmitting. SEND When grounded, transmits. Data line for the optional AT-180. Band voltage output. BAND (Varies with amateur band) ALC voltage input.

  • Page 10: Microphone (Hm-36)

    PANEL DESCRIPTION n Microphone (HM-36) q UP/DOWN SWITCHES [UP]/[DN] Change the selected readout frequency or memory channel. • Continuous pushing changes the frequency or memory channel number continuously. • The [UP]/[DN] switch can simulate a key paddle. Preset in the CW PADDL in initial set mode. (p. 31) •...

  • Page 11: Installation And Connections

    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-718 has an SWR meter to monitor the antenna SWR continuously. connect the...

  • Page 12: Required Connections

    INSTALLATION AND CONNECTIONS n Required connections • Front panel MICROPHONES (p. 55) HM-36 • Rear panel ANTENNA (p. 56) [Example]: 1.8–30 MHz bands GROUND (p. 9) Use the heaviest gauge wire or strap available and make the connection as short as possible.

  • Page 13: Advanced Connections

    RF/SQL PHONES HEADPHONES [REMOTE] (p. 57) Used for computer control and transceive operation. AH-2b ACC SOCKETS (p. 7) [SEND], [ALC] (p. 14) Used for connecting a non-Icom linear ampli- fier. MODE M-CL F-INP COMP SHIFT P.AMP TUNER LOCK EXTERNAL SPEAKER (p. 55)

  • Page 14: Power Supply Connections

    INSTALLATION AND CONNECTIONS n Power supply connections Use an optional PS-85 DC POWER SUPPLY w operating the IC-718 with AC power. Refer to the diagrams below. CONNECTING PS-85 DC POWER SUPPLY CONNECTING NON-ICOM DC POWER SUPPLY CONNECTING A VEHICLE BATTERY...

  • Page 15: Liner Amplifier Connections

    AC outlet (Non-European versions : 100–120/220–240 V European version CONNECTING THE IC-4KL OPC-599 conversion cable 9 10 11 12 1 2 3 4 IC-718 Remote control cable (supplied with the IC-PW1) ACC cable (supplied with the IC-PW1) OPC-599 conversion cable (option)

  • Page 16: External Antenna Tuners

    DC 2 A. If this level is exceeded, a large external relay must be used. Control cable AH-4 Ground Turn the IC-718’s power OFF when connecting the AT-180, otherwise, the CPU may malfunction and the AT-180 may not function properly. ACC cable supplied with the AT-180 [ACC]...

  • Page 17: Frequency Setting

    n When first applying power B e f o r e f i r s t a p p l y i n g p o w e r , m a k e s u r e a l l connections required for your system are complete by referring to Chapter 3.

  • Page 18: Vfo Description

    VFO description VFO is an abbreviation of Variable Frequency Oscillator, and traditionally refers to an oscillator. The IC-718 VFO can store a frequency and an operating mode. You can call up a desired frequency to the VFO with the keypad or the memory transfer function (see p. 37).

  • Page 19: Frequency Setting

    M=CL FREQUENCY SETTING • For general coverage receiver use The IC-718 has a general coverage receiver band. q Push [∫ UP] or [√ DN] one or more times to select the general coverage receiver band. Note: Even if you select the ham band, you can set the transceiver to the general coverage frequency.
  • Page 20 15.10000 MHz D Band selection All HF ham bands and a general coverage receiver band are included in the IC-718. Push [∫ UP]/[√ DN] to select the desired band. • Pushing [∫ UP]/[√ DN] continuously scrolls through the available bands.

  • Page 21: Dial Lock Function

    D 1 Hz and 10 Hz tuning steps When the programmable tuning step, “,” disappear, rotating the tuning dial changes the frequency in increments of 1 or 10 Hz. q Push [TS] one or more times until the programmable tuning step indicator “” disappears. w Push [TS] for 1 sec.

  • Page 22: Receive And Transmit

    RECEIVE AND TRANSMIT n Mode selection The following modes are available in the IC-718: SSB (LSB/USB), CW, CW REV (CW reverse), RTTY, RTTY REV (RTTY reverse) and AM.  Push [MODE] one or more times to select desired operation mode.

  • Page 23: Function For Receive

    n Function for receive ï IF shift function The IF shift function electronically narrows the passband frequency of the IF (intermediate frequency) and cuts out higher or lower frequency components of the IF to reject interference. The function shifts the IF frequency up to ±1.2 KHz in SSB/CW/RTTY modes and up ±250 Hz in CW-narrow/RTTY narrow modes.

  • Page 24: Noise Blanker

    RECEIVE AND TRANSMIT ï Attenuator The attenuator prevents desired signals from distorting when very strong signals are near the desired frequency or when very strong electric fields, such as from broadcasting stations, are near your location.  Push [ATT] to toggle the 20 dB attenuator function ON and OFF.

  • Page 25: Dsp Function (Option)

    n DSP function (Requires an optional UT-106 ï NR (Noise reduction) function When an optional UT-106 is installed (DSP appears in the function display), noise reduction function can be used. The noise reduction function reduces noise components and picks out desired signals which are buried in noise.

  • Page 26: Filter Selection

    RECEIVE AND TRANSMIT n Filter selection The filter selection switches the IF passband width as shown in the table at right. The filter selection is automatically memorized in each mode. q Select the desired mode with the mode switches. w Push [FIL] one or more times to select the desired filter combination.

  • Page 27: Filter Setting

    n Filter setting When an optional filter is installed, set the optional filters in initial set mode. Optional filters are not selected by default. (p. 47) D Optional filter setting q While pushing and holding [SET], push [POWER] to enter initial set mode. w Push [UP Y] or [Z DN] one or more times until “FIL”...

  • Page 28: Function For Transmit

    RECEIVE AND TRANSMIT n Function for transmit ï Output power and microphone gain • Setting output power q Push [SET] for 1 sec. to select quick set mode. w Push [∫ UP]/[√ DN] one or more times to select “RF Power”. e Rotate the main dial to select the desired output.

  • Page 29: Vox Operation

    ï Microphone compressor IC-718 has a built-in, low distortion Mic 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 Selecting USB or LSB mode.
  • Page 30 RECEIVE AND TRANSMIT ï Optional AT-180 The AT-180 automatic antenna tuner matches the IC-718 to the connected antenna automatically. Once the tuner matches an antenna, the variable capacitor angles are memorized as a preset point for each frequency range (100 kHz steps). Therefore, when you change the frequency range, the variable capacitors are automatically preset to the memorized point.
  • Page 31 • MANUAL TUNING q Set the desired frequency in an HF band. • The IC-718 will not transmit outside of the ham bands, the AH-4 tuner will tune all frequencies 3.5 to 30 MHz. w Push and hold [TUNER] for 1 sec.

  • Page 32: Split Frequency Operation

    To exchange the transmit and receive frequencies, n SWR The IC-718 has a built-in circuit of measuring antenna SWR—no external equipment or special adjustments are necessary. ï Measuring SWR q Confirm that the output power is over 30 W.

  • Page 33: Function For Cw

    n Function for CW ï Connection for CW 9 10 11 12 1 2 3 4 [ELEC KEY] For no break-in operation: Connect an external switch such as [ACC] a foot switch; or use the RTTY SEND terminal for all bands. 9 10 11 (See p.

  • Page 34: Electronic Cw Keyer

    Push [MODE] for 1 sec. to toggle between CW and CW-R modes. ï Electronic CW keyer The IC-718 has an electronic keyer. Both keying speed and weight (the ratio of dot : space : dash) can be set in quick set mode.

  • Page 35: Function For Rtty

    n Function for RTTY ï Connection for RTTY(FSK) Rear panel Rear panel view SQL* 9 10 11 12 AF out SEND 5 6 7 8 1 2 3 4 FSKK ï Connection for AFSK [MIC] connector (Front panel view) [ACC] connector Rear panel view SQL*...
  • Page 36 RECEIVE AND TRANSMIT ï RTTY (FSK) operation q Connect a terminal unit as at p. 34. w Select RTTY (or RTTY-R) mode with [MODE]. e Select the desired FSK tone and shift frequencies as below. r Set the desired frequency with the main dial. t Operate the connected PC or TNC (TU).

  • Page 37: Memory Operation

    n Memory channels The transceiver has 101 memory channels. The memory mode is very useful for quickly changing to often-used frequencies. MEMORY MEMORY CHANNEL CHANNEL NUMBER Regular memory 1–99 channels Scan edge memory P1, P2 channels n Memory channel selection D Using the [UP Y] or [Z DN] keys q Push [V/M] to select memory mode.

  • Page 38: Memory Channel Programming

    MEMORY OPERATION n Memory channel programming Memory channel programming can be performed either in VFO mode or in memory mode. D Programming in VFO mode q Set the desired frequency and operating mode in VFO mode. w Push [CH], then push [UP Y] or [Z DN] several times to select the desired memory channel.

  • Page 39: Frequency Transferring

    n Frequency transferring The frequency and operating mode in a memory channel can be transferred to the VFO. D Transferring in VFO mode This is useful for transferring programmed contents to VFO. q Select VFO mode with [V/M]. w Push [CH], then select the memory channel to be transferred with [UP Y] or [Z DN].

  • Page 40: Memory Clearing

    MEMORY OPERATION D Transferring in memory mode This is useful for transferring frequency and operating mode while operating in memory mode. When you have changed the frequency or operating mode in the selected memory channel: • Displayed frequency and mode are transferred. •...

  • Page 41: Scans

    n Scan types PROGRAMMED SCAN Repeatedly scans between two scan edge frequencies (scan edge memory channels P1 and P2). Scan edge P1 or P2 Scan Jump This scan operates in VFO mode. n Preparation • Channels For programmed scan/auto memory write scan: Program scan edge frequencies into scan edge memory channels P1 and P2.

  • Page 42: Programmed Scan Operation

    SCANS n Programmed scan operation q Select VFO mode with [V/M]. w Select the desired operating mode. • The operating mode can also be changed while scanning. e Set [RF/SQL] open or closed. • See previous page for scan condition. •...

  • Page 43: Set Mode

    General 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 mode. D Quick set mode operation q While power is ON, push [SET] for 1 sec.

  • Page 44: Quick Set Mode Items

    SET MODE n 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 for indication, however, it can be adjusted continuously. •The default is H (maximum power). Note that while adjusting the output power, the power meter is displayed automatically.
  • Page 45 SET MODE • BK-IN delay This item adjusts break-in delay time for CW semi break-in operation. The delay time is selectable from 2.0 to 13 (dots). The default is 7. • Key speed This item adjusts the CW key speed. The key speed can be selected from 6 to 60* wpm.

  • Page 46: Initial Set Mode Items

    SET MODE n Initial set mode items • Mode select This item is available in all modes, and allows you to simplify operation by inhibiting the selection of unneeded operating modes during normal operation. For example if you are operating mobile and only plan on using LSB and USB modes, use “MODE SELECTION”...
  • Page 47 • Meter peak hold This item selects meter peak hold function on or off. The default is on. • Scan speed This item sets the rate at which channels or frequencies are scanned during scan operations. High or Low can be selected.
  • Page 48 SET MODE • Tuner type This item selects optional antenna tuner type.Three selections are available. • no : No optional tuner connected. • 4 : The optional AH-4 antenna tuner is connected. • 18 : The optional AT-180 antenna tuner is connected The default is no.
  • Page 49 When 2 or more IC-718s are connected to an optional CT-17 CI-V , rotate the main dial to select LEVEL CONVERTER a different address for each IC-718 in the range 01H to 7FH. The default is 5E. • CI-V Transceive Transceive operation is possible with the IC-718 connected to other Icom HF transceivers or receivers.

  • Page 50: 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 R e m o v e t h e 5 s c r e w s f r o m t h e t o p o f t h e transceiver and 4 screws from the sides, then lift up the top cover.

  • Page 51: Cr-338 High Stability Crystal Unit

    n CR-338 high stability crystal unit By installing the CR-338, the total frequency stability of the receiver will be improved. q Remove the bottom cover as shown in the diagram before. w Disconnect W2 from J4401 (MAIN unit) and W3 from J4201 (MAIN unit).

  • Page 52: Dsp Receive Unit

    Return the bottom cover to its original position. n Optional IF filters Several IF filters are available for the IC-718. You can install 1 filter for 455 kHz IF. Choose the appropriate filter for your operating needs. (pgs, 24−25) D Installation q Remove the bottom cover as shown on the p.

  • Page 53: At-180 Internal Switch Description

    � 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. qRemove the top cover of the AT-180. wSet the tuner switches to the desired positions according to the table below.

  • Page 54: Maintenance

    • The internal CPU has mulfunctioned. If you are not able 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 control is set too high.

  • Page 55: Fuse Replacement

    CIRCUITRY FUSE REPLACEMENT The 13.8 V DC from the DC power cable is applied to all units in the IC-718 through the circuitry fuse. This fuse is installed in the MAIN unit. q Remove the top cover as shown on p. 48 w Replace the circuitry fuse as shown in the diagram at right.

  • Page 56: Specifications

    SPECIFICATIONS D General • Frequency coverage : Receive 0.03–29.999999 MHz* Transmit 1.800– 1.999999 MHz* 3.500– 3.999999 MHz* 7.000– 7.300000 MHz 10.100–10.150000 MH 14.000–14.350000 MHz 18.068–18.168000 MHz 21.000–21.450000 MHz 24.890–24.990000 MHz 28.000–29.700000 MHz Guaranteed range: 0.5–29.999999 MHz Varies according to version •...

  • Page 57: Options

    IC-PW1 HF + 50 MHz 1 KW LINER AMPLIFIER AH-4 HF + 50 MHz AUTOMATIC ANTENNA TUNER Specially designed to tune a long wire antenna for portable or mobile HF operation. The PTT tuner start function provides simple operation. • Input power rating: 120 W SM-8 DESKTOP MICROPHONE I n c l u d i n g 2 c o n n e c t i o n c a b l e s for simultaneous connection of 2...
  • Page 58 OPTIONS SP-7 EXTERNAL SPEAKER Compact speaker for base station operation. Height can be adjusted for your convenience. UT-102 VOICE SYNTHESIZER Announces the receive frequency, mode, S-meter level and current time in a clear, electronically-generated voice, in English (or Japanese). IC-MB5 MOBILE MOUNTING BRACKET Transceiver mounting bracket for mobile operation.

  • Page 59: Control Command

    RS-232C port. The Icom Communications Interface-V (CI-V) controls the following functions of the transceiver. Up to 4 Icom CI-V transceivers or receivers can be connected to a personal computer equipped with an RS-232C port. See p. 32 for setting the CI-V condition using set mode.
  • Page 60 CONTROL COMMAND • Command table Command Sub command — 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 61: Internal Views

    n Top view Drive ID adj. (R 21) Final ID adj. (R 24) Final amplifier (2SC2094x2) Fuse (FGB 4 A) PA unit R 25 n Bottom view MAIN unit Reference freq. adj. (C 16) Optional crystal (CR-338) PLL unit INTERNAL VIEW Caution: The transceiver has been thoroughly tested and...

  • Page 62: Installation Notes

    Similarly some types of transmitter, SSB, CW, AM, etc. have a lower ‘average’ output power and the perceived risk is even lower. Versions of the IC-718 which display the “CE” symbol on the serial number seal, comply with the essential requirements of the European Radio and Telecommunication Terminal Directive 1999/5/EC.

  • Page 63: 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.
  • Page 64 (Italy) IC-718 #05 < Intended Country of Use > (France) IC-718 #06 < Intended Country of Use > (Spain) A-5649D-1EX-y Printed in Japan © 2000–2007 Icom Inc. Printed on recycle paper with soy ink. 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan...

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