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HF/50 MHz TRANSCEIVER

i7700

Instruction Manual

A-6937H-1EX-ta

Printed in Japan

FOREWORD

Thank you for making the IC-7700 your radio of choice. We hope you agree

with Icom’s philosophy of “technology first.” Many hours of research and devel-

opment went into the design of your IC-7700.

D FEATURES

❍ Ultimate receiver performance: third-order intercept (IP3) of

+40 dBm (HF bands only)

❍ Built-in Baudot RTTY and PSK31 modulator/demodulator

and direct PC keyboard connection capability for RTTY and

PSK31 operations without a PC

❍ High resolution spectrum scope — center frequency and fixed

frequency modes, plus mini-scope displays

IMPORTANT

READ THIS INSTRUCTION MANUAL CAREFULLY before at-

tempting to operate the transceiver.

SAVE THIS INSTRUCTION MANUAL. This manual contains important

safety and operating instructions for the IC-7700.

EXPLICIT DEFINITIONS

TRADEMARKS

Icom, Icom Inc. and the Icom logo are registered trademarks of Icom

Incorporated (Japan) in Japan, the United States, the United Kingdom,

Germany, France, Spain, Russia and/or other countries.

An LCD filter has been added to European versions for Electromagnetic interference (EMI) and Radio

Frequency interference (RFI) compliance purpose. In some instances, the LCD may be a little difficult to see,

but this is normal and does not indicate an LCD malfunction.

FOR CLASS B UNINTENTIONAL RADIATORS

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part

15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference

in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by one or more of the following measures:

 •Reorientorrelocatethereceivingantenna.

 •Increasetheseparationbetweentheequipmentandreceiver.

 •Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.

 •Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

WORD DEFINITION

R DANGER! Personaldeath,seriousinjuryoranexplosionmayoccur.

R WARNING! Personal injury, fire hazard or electric shock may occur.

CAUTION Equipment damage may occur.

NOTE Recommended for optimum use. No risk of personal inju-

ry, fire or electric shock.

PRECAUTIONS

R DANGER HIGH RF VOLTAGE! NEVER

attach an antenna or internal antenna connector

during transmission. This may result in an electrical

shock or burn.

R WARNING! NEVER operate the transceiver

with a headset or other audio accessories at high vol-

umelevels.Hearingexpertsadviseagainstcontinu-

oushighvolumeoperation.Ifyouexperiencearinging

in your ears, reduce the volume or discontinue use.

R WARNING! NEVER operate or touch the

transceiver with wet hands. This may result in an elec-

tric shock or damage to the transceiver.

R WARNING! NEVER let metal, wire or other ob-

jects protrude into the transceiver or into connectors

on the rear panel. This may result in an electric shock.

R WARNING! Immediately turn the transceiver

power OFF and remove the power cable if it emits an

abnormal odor, sound or smoke. Contact your Icom

dealer or distributor for advice.

CAUTION: NEVER put the transceiver in any un-

stable place (such as on a slanted surface or vibrated

place). This may cause injury and/or damage to the

transceiver.

CAUTION: NEVER put the transceiver’s rear

panel side down after lifting up the transceiver by

holding rack mounting handle. This may scratch the

surface of the place or damage the connectors on the

transceiver’s rear panel.

CAUTION: NEVER change the internal settings

of the transceiver. This may reduce transceiver per-

formance and/or damage to the transceiver.

In particular, incorrect settings for transmitter circuits,

such as output power, idling current, etc., might dam-

agetheexpensivefinaldevices.

The transceiver warranty does not cover any prob-

lems caused by unauthorized internal adjustment.

CAUTION: NEVER block any cooling vents on the

top, rear or bottom of the transceiver.

CAUTION: NEVERexposethetransceivertorain,

snow or any liquids.

CAUTION: NEVER install the transceiver in a

place without adequate ventilation. Heat dissipation

may be reduced, and the transceiver may be dam-

aged.

CAUTION:Thetransceiverweighsapproximately

22.5 kg (50 lb). Always have two people available to

carry, lift or turn over the transceiver.

CAUTION: The line-voltage receptacle must be

near the transceiver and must be easily accessible.

Avoidextensioncords.

DO NOT

use harsh solvents such as benzine or al-

cohol when cleaning, as they can damage the trans-

ceiver’s surfaces.

DO NOT push the PTT switch when you don’t actu-

ally desire to transmit.

DO NOT use or store the transceiver in areas with

temperatures below ±0°C (+32°F) or above +50°C

(+122°F).

DO NOTplacethetransceiverinexcessivelydusty

environments or in direct sunlight.

DO NOT place the transceiver against walls or

putting anything on top of the transceiver. This may

overheat the transceiver.

Always place unit in a secure place to avoid inadvert-

ent use by children.

BE CAREFUL! If you use a linear amplifier, set the

transceiver’s RF output power to less than the linear

amplifier’smaximuminputlevel,otherwise,thelinear

amplifier will be damaged.

BE CAREFUL! touch the transceiver top cover when

transmitting continuously for long periods of time. The

top cover may be hot.

Use Icom microphones only (supplied or optional).

Other manufacturers’ microphones have different pin

assignments, and connection to the IC-7700 may

damage the transceiver or microphone.

The LCD display may have cosmetic imperfections

that appear as small dark or light spots. This is not a

malfunction or defect, but a normal characteristic of

LCD displays.

During maritime mobile operation, keep the trans-

ceiver and microphone as far away as possible from

the magnetic navigation compass to prevent errone-

ous indications.

Turn [I/O] switch (on the rear panel) OFF and/or dis-

connect the AC power cable from the AC outlet when

you will not use the transceiver for long period of time.

For U.S.A. only

CAUTION: Changes or modifications to this device,

notexpresslyapprovedbyIcomInc.,couldvoidyour

authority to operate this device under FCC regula-

tions.

q AC power cable* ................................................. 1

w Feet .............................................................. 1 pair

e Spare fuse (FGB 2 A) ......................................... 1

r RCA plugs ........................................................... 2

t DC plug ............................................................... 1

y 2-conductor 1⁄8″ plugs ......................................... 3

u 3-conductor 1⁄8″ plugs ......................................... 2

i 3-conductor 1⁄4″ plugs ......................................... 3

o ACC plugs (7-pin) ............................................... 1

!0 ACC plugs (8-pin) ............................................... 1

!1 Antenna connector caps ..................................... 4

!2 Side screws (without rack mounting handle)† ..... 6

!3 Main dial‡ ............................................................. 1

!4 Rubber cover for the Main dial‡ ............................ 1

!5 Main dial screw‡ ................................................... 1

!6Hexagonalwrench‡ .............................................. 1

* May differ from that shown depending on the version.

† These screws are used when removing the rack mounting

handles. See p.2-3 for the rack mounting handle detach-

ment details.

‡ See p.2-2 for the main dial attachment details.

iii

SUPPLIED ACCESSORIES

!0 !1 !2

!3 !4 !5 !56

yui

ewr

(FH M4×12 mm)

(PH M4×8 mm) PH: Pan head

FH: Flat head

Section 1 PANEL DESCRIPTION

■ Front panel ........................................................................................ 1-2

■ Rear panel ...................................................................................... 1-12

■ LCD display .................................................................................... 1-14

■ Screen menu arrangement ............................................................. 1-16

Section 2 INSTALLATION AND CONNECTIONS

■ Unpacking ......................................................................................... 2-2

■ Main dial attachment ........................................................................ 2-2

■ Rack mounting handle detachment .................................................. 2-3

■ Selecting a location .......................................................................... 2-3

■ Grounding ......................................................................................... 2-4

■ Antenna connection .......................................................................... 2-4

■ USB flash drive connection .............................................................. 2-4

■ Required connections ....................................................................... 2-5

D Front panel ................................................................................... 2-5

D Rear panel .................................................................................... 2-5

■ Advanced connections ..................................................................... 2-6

D Front panel ................................................................................... 2-6

D Rear panel—1 .............................................................................. 2-6

D Rear panel—2 .............................................................................. 2-7

■ Linear amplifier connections ............................................................. 2-8

D Connecting the IC-PW1/EURO .................................................... 2-8

D Connecting a non-Icom linear amplifier ........................................ 2-8

■ Transverter jack information ............................................................. 2-9

■FSKandAFSK(SSTV)connections ................................................ 2-9

■ Microphones (options) .................................................................... 2-10

D SM-50 ......................................................................................... 2-10

D SM-30 ......................................................................................... 2-10

D HM-36 ......................................................................................... 2-11

■ Microphone connector information ................................................. 2-11

■ Accessory connector information ................................................... 2-12

Section 3 BASIC OPERATIONS

■ When first applying power (CPU resetting) ...................................... 3-2

■ Initial settings .................................................................................... 3-2

■SelectingVFO/memorymode .......................................................... 3-3

■VFOselection ................................................................................... 3-3

DSelectingVFO-A/VFO-B ............................................................... 3-3

DVFOequalization .......................................................................... 3-3

■ Selecting an operating band ............................................................. 3-4

D Using the band stacking registers ................................................ 3-4

■ Frequency setting ............................................................................. 3-5

D Tuning with the main dial .............................................................. 3-5

D Direct frequency entry with the keypad ........................................ 3-5

D Quick tuning step .......................................................................... 3-6

D Selecting “kHz” step ..................................................................... 3-6

D 1⁄4 tuning step function ................................................................. 3-6

D Selecting 1 Hz step ...................................................................... 3-7

D Auto tuning step function .............................................................. 3-7

■ Operating mode selection ................................................................ 3-8

■Volumesetting .................................................................................. 3-9

■ RF gain adjustment .......................................................................... 3-9

■ Squelch level adjustment .................................................................. 3-9

TABLE OF CONTENTS

■ Meter indication selection ............................................................... 3-10

D Multi-function digital meter ......................................................... 3-10

D Meter type selection ................................................................... 3-11

■Voicesynthesizeroperation ............................................................ 3-11

■ Basic transmit operation ................................................................. 3-12

D Transmitting ................................................................................ 3-12

D Microphone gain adjustment ...................................................... 3-12

D Drive gain adjustment ................................................................. 3-13

■ Band edge warning beep ............................................................... 3-13

D Programming the user band edge .............................................. 3-14

Section 4 RECEIVE AND TRANSMIT

■ Operating SSB .................................................................................. 4-2

D Convenient functions for receive ...................................................4-2

D Convenient functions for transmit ..................................................4-3

D About 5 MHz band operation (USA version only) .........................4-3

■ Operating CW ................................................................................... 4-4

D Convenient functions for receive ...................................................4-4

D Convenient functions for transmit ..................................................4-5

D About CW reverse mode ...............................................................4-5

D About CW pitch control .................................................................4-5

D CW side tone function ...................................................................4-5

D APF (Audio Peak Filter) operation .................................................4-6

■ Electronic keyer functions ................................................................. 4-7

D Memory keyer screen ....................................................................4-8

D Editing a memory keyer .................................................................4-9

D Contest number set mode ...........................................................4-10

D Keyer set mode ...........................................................................4-11

■ Operating RTTY (FSK) ................................................................... 4-13

D Convenient functions for receive .................................................4-14

D About RTTY reverse mode ..........................................................4-14

D Twin peak filter .............................................................................4-14

D Functions for the RTTY decoder display .....................................4-15

D Setting the decoder threshold level .............................................4-15

D RTTY memory transmission ........................................................4-16

D Automatic transmission/reception setting ....................................4-16

D Editing RTTY memory .................................................................4-17

D RTTY decode set mode ..............................................................4-18

D Data saving ..................................................................................4-20

■ Operating PSK ................................................................................ 4-21

D Convenient functions for receive .................................................4-22

D About BPSK and QPSK modes ..................................................4-22

D Functions for the PSK decoder display .......................................4-23

D Setting the decoder threshold level .............................................4-23

D PSK memory transmission ..........................................................4-24

D Automatic transmission/reception setting ....................................4-24

D Editing PSK memory ...................................................................4-25

D PSK decode set mode ................................................................4-26

D Data saving ..................................................................................4-28

■ Operating AM ................................................................................. 4-29

D Convenient functions for receive .................................................4-29

D Convenient functions for transmit ................................................4-30

■ Operating FM .................................................................................. 4-31

D Convenient functions for receive .................................................4-31

TABLE OF CONTENTS

D Convenient functions for transmit ................................................4-31

■ Repeater operation ......................................................................... 4-32

D Repeater access tone frequency setting .....................................4-33

■ Tone squelch operation .................................................................. 4-34

■ Data mode (AFSK) operation ......................................................... 4-35

Section 5 FUNCTIONS FOR RECEIVE

■ Spectrum scope screen .................................................................... 5-2

D Center mode ................................................................................. 5-2

DFixedmode ................................................................................... 5-3

D Mini scope screen display ............................................................ 5-4

D Scope set mode ........................................................................... 5-4

D USB mouse operation .................................................................. 5-9

■ Preamplifier .................................................................................... 5-10

■ Attenuator ....................................................................................... 5-10

■ RIT function .................................................................................... 5-11

D RIT monitor function ....................................................................5-11

■ AGC function .................................................................................. 5-12

D Selecting the preset value ...........................................................5-12

D Adjusting the AGC time constant ................................................5-12

D Setting the AGC time constant preset value ...............................5-12

■ Twin PBT operation ........................................................................ 5-13

■ IF filter selection ............................................................................. 5-14

D IF filter selection ......................................................................... 5-14

DFilterpassbandwidthsetting(exceptFMmode) ....................... 5-14

D Roofing filter selection ................................................................ 5-15

D DSP filter shape ......................................................................... 5-15

D Filter shape set mode ................................................................. 5-15

■ Noise blanker .................................................................................. 5-16

D NB set mode ............................................................................... 5-17

■ Noise reduction ............................................................................... 5-18

■ Dial lock function ............................................................................ 5-18

■ Notch function ................................................................................. 5-19

■ Digital selector ................................................................................ 5-19

■ Audio scope screen ........................................................................ 5-20

D Audio scope set mode ................................................................ 5-21

■ Autotune function ............................................................................ 5-22

Section 6 FUNCTIONS FOR TRANSMIT

■VOXfunction ..................................................................................... 6-2

DUsingtheVOXfunction ................................................................ 6-2

DAdjustingtheVOXfunction ........................................................... 6-2

DVOXsetmode .............................................................................. 6-2

■ Break-in function ............................................................................... 6-3

D Semi break-in operation ............................................................... 6-3

D Full break-in operation .................................................................. 6-3

■ ∂TX function ..................................................................................... 6-4

D ∂TX monitor function .................................................................... 6-4

■ Monitor function ................................................................................ 6-4

■ Transmit filter width setting (SSB only) ............................................. 6-5

■ Speech compressor (SSB only) ........................................................ 6-5

■ Split frequency operation .................................................................. 6-6

■ Quick split function ........................................................................... 6-7

D Split lock function ......................................................................... 6-7

TABLE OF CONTENTS

Section 7 VOICE RECORDER FUNCTIONS

■ Recording a QSO audio ……………………………………………… 7-2

D To start or stop recording …………………………………………… 7-2

■ Recording quick operation …………………………………………… 7-2

D To start or stop recording …………………………………………… 7-2

■ Playing back recorded audio (QSO) ………………………………… 7-3

D Basic playing ………………………………………………………… 7-3

D Operating while playing back ……………………………………… 7-4

■ Deleting recorded audio file …………………………………………… 7-5

■ Deleting recorded audio folder ………………………………………… 7-5

■ About digital voice recorder …………………………………………… 7-6

■ Recording a received audio (Short REC) …………………………… 7-7

D One-touch recording ………………………………………………… 7-7

■ Playing back the recorded audio (Short REC) ……………………… 7-7

D Basic playing ………………………………………………………… 7-7

D One-touch playing …………………………………………………… 7-8

■ Protect the recorded contents ………………………………………… 7-8

■ Erasing the recorded contents ………………………………………… 7-8

■ Recording a message for transmit …………………………………… 7-9

D Recording …………………………………………………………… 7-9

D Confirming a message for transmit ………………………………… 7-9

■ Programming a memory name ……………………………………… 7-10

■ Sending a recorded message ………………………………………… 7-11

D Single TX ……………………………………………………………… 7-11

D Repeat TX …………………………………………………………… 7-11

D Transmit level setting ……………………………………………… 7-12

■Voicesetmode ………………………………………………………… 7-12

■ Saving a voice memory into the memory device …………………… 7-15

D Saving the received audio memory ……………………………… 7-15

D Saving the TX memory ……………………………………………… 7-15

Section 8 MEMORY OPERATION

■ Memory channels ............................................................................. 8-2

■ Memory channel selection ................................................................ 8-2

D Using the ∫ / √ keys ......................................................... 8-2

D Using the keypad .......................................................................... 8-2

■ Memory channel programming ......................................................... 8-3

DProgramminginVFOmode .......................................................... 8-3

D Programming in memory mode .................................................... 8-3

■ Frequency transfers .......................................................................... 8-4

DTransferringinVFOmode ............................................................. 8-4

D Transferring in memory mode ....................................................... 8-4

■ Memory list screen ........................................................................... 8-5

D Selecting a memory channel using the memory list screen ........ 8-5

D Confirming programmed memory channels ................................. 8-5

■ Memory names ................................................................................. 8-6

D Editing (programming) memory names ........................................ 8-6

■ Memory clearing ............................................................................... 8-6

■ Memo pads ........................................................................................ 8-7

D Writing frequencies and operating modes into memo pads ......... 8-7

D Calling up a frequency from a memo pad .................................... 8-7

vii

TABLE OF CONTENTS

viii

Section 9 SCANS

■ Scan types ........................................................................................ 9-2

■ Preparation ....................................................................................... 9-2

■Voicesquelchcontrolfunction .......................................................... 9-3

■ Scan set mode ................................................................................. 9-3

■ Programmed scan operation ............................................................ 9-4

■ ∂F scan operation ............................................................................ 9-4

■ Fine programmed scan/Fine ∂F scan .............................................. 9-5

■ Memory scan operation .................................................................... 9-6

■ Select memory scan operation ......................................................... 9-6

■ Setting select memory channels ...................................................... 9-7

D Setting in scan screen .................................................................. 9-7

D Setting in memory list screen ....................................................... 9-7

D Erasing the select scan setting .................................................... 9-7

■ Tone scan ......................................................................................... 9-8

Section 10 ANTENNA TUNER OPERATION

■ Antenna connection and selection ................................................. 10-2

■ Antenna memory settings ............................................................... 10-3

D Antenna type selection ............................................................... 10-3

D Temporary memory .................................................................... 10-4

D Antenna selection mode ............................................................. 10-4

D Receive antenna I/O setting ....................................................... 10-5

■ Antenna tuner operation ................................................................. 10-6

D Tuner operation ........................................................................... 10-6

D If the tuner cannot tune the antenna .......................................... 10-7

Section 11 CLOCK AND TIMERS

■ Time set mode ................................................................................ 11-2

■ Daily timer setting ........................................................................... 11-3

■ Setting sleep timer .......................................................................... 11-4

■ Timer operation .............................................................................. 11-4

Section 12 SET MODE

■ Set mode description ...................................................................... 12-2

D Set mode operation .................................................................... 12-2

D Screen arrangement ................................................................... 12-3

■ Level set mode ............................................................................... 12-4

■ ACC set mode ................................................................................ 12-7

■ Display set mode .......................................................................... 12-10

■ Others set mode ........................................................................... 12-12

■ USB-Memory set menu ................................................................ 12-23

D USB-Memory set screen arrangement ..................................... 12-23

D Save option set mode ............................................................... 12-24

D Load option set mode ............................................................... 12-25

■ File saving .................................................................................... 12-26

■ File loading ................................................................................... 12-27

■ Changing a file name ................................................................... 12-28

■ Deleting a file ................................................................................ 12-29

■ Unmounting USB flash drive ........................................................ 12-29

■ Formatting USB flash drive .......................................................... 12-30

TABLE OF CONTENTS

Section 13 MAINTENANCE

■ Troubleshooting .............................................................................. 13-2

D Transceiver power ....................................................................... 13-2

D Transmit and receive .................................................................. 13-2

D Scanning ..................................................................................... 13-3

D Display ........................................................................................ 13-3

D Format USB flash drive .............................................................. 13-3

■ Main dial brake adjustment ............................................................ 13-3

■ SWR reading .................................................................................. 13-4

■ Screen type and font selections ..................................................... 13-4

■Frequencycalibration(approximate) .............................................. 13-5

■ Opening the transceiver’s case ...................................................... 13-6

■ Clock backup battery replacement ................................................. 13-6

■ Fuse replacement ........................................................................... 13-7

■ Resetting the CPU .......................................................................... 13-7

■ About protection indications ........................................................... 13-8

■ Screen saver function ..................................................................... 13-8

Section 14 CONTROL COMMAND

■Remotejack(CI-V)information ...................................................... 14-2

DCI-Vconnectionexample ........................................................... 14-2

D Data format ................................................................................. 14-2

D Command table .......................................................................... 14-3

D Data contents description .......................................................... 14-10

Section 15 SPECIFICATIONS AND OPTIONS

■ Specifications ................................................................................. 15-2

D General ....................................................................................... 15-2

D Transmitter .................................................................................. 15-2

D Receiver ...................................................................................... 15-3

D Antenna tuner ............................................................................. 15-3

■ Options ........................................................................................... 15-4

Section 16 UPDATING THE FIRMWARE

■ General ........................................................................................... 16-2

D Firmware confirmation ................................................................ 16-2

■ Caution ........................................................................................... 16-2

■ Preparation ..................................................................................... 16-3

D Firmware and firm utility ............................................................. 16-3

D File downloading ....................................................................... 16-3

■ Firmware update— USB flash drive ............................................... 16-4

■ Firmware update— PC ................................................................... 16-6

D Connections ................................................................................ 16-6

D IP address setting ....................................................................... 16-7

D Updating from a PC .................................................................... 16-8

TABLE OF CONTENTS

1-1

PANEL DESCRIPTION Section 1

■ Front panel ........................................................................................ 1-2

■ Rear panel ...................................................................................... 1-12

■ LCD display .................................................................................... 1-14

■ Screen menu arrangement ............................................................. 1-16

1-2

q POWER SWITCH POWER (p. 3-2)

➥ Push to turn the transceiver power ON.

   •The[POWER]indicatorabovethisswitchlights

green when powered ON.

➥ Hold down for 1 second to turn the transceiver

power OFF.

   •The[POWER]indicatorlightsorangewhenthe

transceiver is OFF when the internal power supply

is switched ON.

w TRANSMIT SWITCH TRANSMIT

Selects transmit or receive.

 •The[TX]indicatorlightsredwhiletransmittingandthe

[RX] indicator lights green when the squelch is open.

e ANTENNA TUNER SWITCH TUNER (p. 10-6)

➥ Turns the internal antenna tuner ON or OFF (by-

pass) when pushed momentarily.

   •The[TUNER]indicatorabovethisswitchlights

green when the tuner is turned ON, goes off when

tuner is turned OFF (bypassed).

➥ Tunes the antenna tuner manually when held

down for 1 second.

   •The[TUNER]indicatorblinksredduringmanualtun-

ing.

   •Whenthetunercannottunetheantenna,thetuning

circuit is automatically bypassed after 20 seconds.

r TIMER SWITCH TIMER (p. 11-4)

➥ Turns the sleep or daily timer function ON or

OFF.

   •The[TIMER]indicatorabovethisswitchlightsgreen

when the timer is in use.

➥ Selects the timer set mode when held down for

1 second.

t HEADPHONE JACK [PHONES]

Accepts standard stereo headphones.

 •Outputpower:5mWwithan8Ω load.

 •Whenheadphonesareconnected,theinternalspeaker

orconnectedexternalspeakerdoesnotfunction.

y ELECTRONIC KEYER JACK [ELEC-KEY] (p. 2-5)

Accepts a paddle to activate the internal electronic

keyer for CW operation.

 •Youcanselectinternalelectronickeyer,bug-keyor

straight key operation in keyer set mode. (p. 4-12)

 •Astraightkeyjackislocatedontherearpanel.See

[CW KEY] on page 1-12.

 •Keyerpolarity(dotanddash)canbereversedinkeyer

set mode. (p. 4-12)

 •A4-channelmemorykeyerisavailableforyourcon-

venience. (p. 4-8)

(dot)

(com)

(dash)

Turn the internal power supply ON first. The in-

ternal power supply switch is located on the rear

panel. (p. 3-2)

1PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA AUTO

TUNE

LOCK

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

BK-IN MONITOR

TRANSMIT

MIC

ELEC-KEY

PHONES

AF RF

MIC RF

PWR

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

KEY

SPEED

DELAY

F-1F-2 F-3F-4 F-5F-6 F-7

LOCKTX RX SPLIT

AGC VR

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1.8

3.5

MP-W MP-R

MW V/M

A/B A=B

GENE

ENT

F-INP

∂TX

SPLIT

AGC SQL NR NB

io!0 !1 !2 !3 !4

■ Front panel

1-3

u MICROPHONE CONNECTOR [MIC]

Accepts an optional microphone.

 •Seepage15-4forappropriatemicrophones.

 •Seepage2-10formicrophoneconnectorinformation.

i MIC GAIN CONTROL [MIC] (p. 3-12)

Adjusts microphone input gain.

 •ThetransmitaudiotoneintheSSB,AMandFMmodes

can be adjusted independently in set mode. (p. 12-5)

✔ How to set the microphone gain.

Set the [MIC] control so that the ALC meter occasionally

moves up-scale during normal voice transmission, in the

SSB, AM or FM mode.

o VOX SWITCH VOX

➥PushtoturntheVOXfunctionONorOFFdur-

ing SSB, AM and FM mode operation. (p. 6-2)

➥Holddownfor1secondtoenterVOXsetmode.

(p. 6-2)

✔ What is the VOX function?

TheVOXfunction(voiceoperatedtransmission)acti-

vates transmission without pushing the transmit switch

or PTT switch when you speak into the microphone; then

automatically returns to receive when you stop speaking.

!0 RF POWER CONTROL [RF PWR] (p. 3-12)

Continuously varies the RF output power from a

minimumof5W*toamaximumof 200 W*.

*AM mode: 5 W to 50 W

!1 BREAK-IN SWITCH BK-IN

Push to turn the break-in function ON (semi-break-

in, full-break-in) or OFF during CW mode operation.

(p. 6-3)

✔ What is the break-in function?

The break-in function switches transmit and receive with

CW keying. Full break-in (QSK) can monitor the receive

signal between CW dots and dashes.

!2 ELECTRONIC CW KEYER SPEED CONTROL

[KEY SPEED] (p. 4-4)

Adjusts keying speed for the internal electronic CW

keyer.

 •6wpm(minimum)to48wpm(maximum)istheadjust-

able range.

!3 MONITOR SWITCH MONITOR (p. 6-4)

Monitors your transmitted IF signal.

 •TheCWsidetonefunctionsregardlessof MONITOR

switch setting in the CW mode.

 •The[MONITOR]indicatorabovethisswitchlights

green while the function is activated.

!4 BREAK-IN DELAY CONTROL [DELAY] (p. 6-3)

Adjusts the transmit-to-receive switching delay

time for CW semi-break-in operations.

!5 AGC CONTROL [AGC] (p. 5-12)

Adjusts the continuously-variable AGC circuit time

constant.

 •Touse[AGC]control,push AGCVR ([AGCVR]indi-

cator lights).

!6 SQUELCH CONTROL [SQL]

(outer control; p. 3-9)

Adjusts the squelch threshold level. The squelch

mutes noise output from the speaker (closed con-

dition) when no signal is received.

 •ThesquelchisparticularlyeffectiveforFM.Itisalso

available in other modes.

 •The11to12o’clockpositionisrecommendedforthe

most effective use of the [SQL] control.

Deep

Noise squelch

Squelch

threshold

Shallow

S-meter

squelch

Squelch is

open

Slow

Fast

Long delay for

slow speed keying

Short delay for

high speed keying

Max.

48 wpm

Min.

6 wpm

Increases

Decreases

Recommended level for

an Icom microphone

Decreases

Decreases Increases

Increases

PANEL DESCRIPTION

1-4

!7 NOISE REDUCTION LEVEL CONTROL [NR]

(inner control; p. 5-18)

Adjusts the DSP noise reduction level when the

noisereductionfunctionisinuse.Setformaximum

readability.

 •Tousethiscontrol,push NR .

!8 NOISE BLANKER CONTROL [NB]

(outer control; p. 5-17)

Adjust the noise blanker threshold level.

 •Tousethiscontrol,push NB .

!9 AGC VOLUME SWITCH AGC VR (p. 5-12)

➥

Push to toggle [AGC] control usage ON or OFF.

   •Use[AGC]controltosettheAGCtimeconstant,

when switched ON.

   •The[AGCVR]indicatorabovethisswitchlights

green when the control is ON.

➥ Turns the AGC function OFF when held down

for 1 second.

@0 USB (Universal Serial Bus) CONNECTOR [USB]

(p. 2-4)

➥ Insert USB flash drive* for both reading and

storing a wide variety of the transceiver’s infor-

mation and data.

   •Theindicatorabovetheconnectorslightsorblinks

when the transceiver reads or writes to the memory

data.

   •Anunmountoperationshouldbeperformedbefore

removing the USB flash drive* (p.12-29).

➥ Connects a PC keyboard for RTTY and PSK31

operations.

   •USBkeyboards*aresupported.

*: A USB flash drive or USB keyboard is not supplied

by Icom.

Deep

Shallow

Increases

Decreases

1PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA AUTO

TUNE

LOCK

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

BK-IN MONITOR

TRANSMIT

MIC

ELEC-KEY

PHONES

AF RF

MIC RF

PWR

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

KEY

SPEED

DELAY

F-1F-2 F-3F-4 F-5F-6 F-7

LOCKTX RX SPLIT

AGC VR

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1.8

3.5

MP-W MP-R

MW V/M

A/B A=B

GENE

ENT

F-INP

∂TX

SPLIT

i7700

HF/50MHz TRANSCEIVER

AGC SQL NR NB

!9 @2 @3 @5 #2@6 @7 @8 @9 #0 #1@4@0 @1

■ Front panel (continued)

About the [USB] connector:

•SupportedonlyUSBflashdrive,keyboard,mouse

or hub.

•KEEP the transceiver power OFF when connecting

or disconnecting a USB keyboard, mouse or hub.

•DO NOT connect the following devices:

- Two or more the same kind of USB devices.

  (Example:TwoUSBhubsortwoUSBmouses)

- Multimedia adapter

- USB HDD

- Larger than 32 GB USB flash drives

- Bluetooth® keyboard or mouse.

1-5

@1 NOISE REDUCTION SWITCH NR (p. 5-18)

Push to switch DSP noise reduction ON or OFF.

 •The[NR]indicatorabovethisswitchlightsgreenwhen

the function is activated.

@2 AF CONTROL [AF] (inner control; p. 3-9)

 Varies theaudiooutputlevelofthespeakeror

headphones.

Audio output

increases

Audio output

decreases

@3 RF GAIN CONTROL [RF] (outer control; p. 3-9)

Adjusts the RF gain level.

While rotating the RF gain control, you may hear

noise. This comes from the DSP unit and does

not indicate a malfunction.

Sensitivity

increases

Sensitivity

decreases

@4 NOISE BLANKER SWITCH NB (p. 5-17)

➥ Switches the noise blanker ON or OFF when

pushed. The noise blanker reduces pulse-type

noise such as that generated by automobile ig-

nition systems. This function cannot be used in

the FM mode, or on non-pulse-type noise.

   •The[NB]indicatorabovethisswitchlightsgreen

while the function is activated.

➥ Enters the blanking-width set mode when held

down for 1 second.

@5 DRIVE GAIN CONTROL [DRIVE] (p. 3-13)

Adjusts the transmitter level at the driver stage.

Active in all modes (other than the SSB mode with

[COMP] OFF).

Decreases

Increases

Push

@6 COMPRESSION LEVEL CONTROL [COMP]

(p. 6-5)

Adjusts the speech compression level in SSB.

Compression

gain decreases

Compression

gain increases

Push

@7 MONITOR GAIN CONTROL [MONI GAIN] (p. 6-4)

Adjusts the transmit IF signal monitor level.

Monitor gain

decreases

Monitor gain

increases

Push

@8 VOX GAIN CONTROL [VOX GAIN] (p. 6-2)

Adjusts the transmit and receive switching thresh-

oldlevelforVOXoperation.

Low

sensitivity

High

sensitivity

Push

@9 ANTI VOX CONTROL [ANTI VOX] (p. 6-2)

AdjuststheVOXsensitivitytothespeakeraudio,to

preventunwantedVOXactivation.

‘More sensitive’

and confirm proper operation

‘Less sensitive’

and confirm

proper operation

Push

#0 LCD CONTRAST CONTROL [CONTRAST]

Adjusts the LCD contrast.

Low

contrast

High

contrast

Push

#1 LCD BRIGHTNESS CONTROL [BRIGHT]

Adjusts the LCD brightness.

Darker

Brighter

Push

#2 AUTOMATIC TUNING SWITCH [AUTOTUNE]

(p. 5-22)

Turns the automatic tuning function ON or OFF in

the CW and AM modes.

IMPORTANT!

When receiving a weak signal, or receiving a sig-

nal with interference, the automatic tuning func-

tion may tune the receiver to an undesired signal.

PANEL DESCRIPTION

1-6

#3 MULTI-FUNCTION SWITCHES

Push to select the functions indicated in the LCD

display to the right of these switches.

 •Functionsvarydependingontheoperatingcondition.

MF1 (MULTI-FUNCTION 1 SWITCH)

➥ Selects the antenna connector from

ANT1, ANT2, ANT3 and ANT4 when

pushed. (p. 10-2)

➥ Displays the antenna selection mem-

ory when held down for 1 second.

  •Whenthereceiveantennaisactivated,

the antenna connected to [ANT4] is

used for receive only.

When a transverter is in use, this [ANT]

doesnotfunctionand‘TRV’appears.

MF2 (MULTI-FUNCTION 2 SWITCH)

➥ Selects the RF power (Po), SWR,

ALC,COMP,Vd or Id metering func-

tions during transmit. (p. 3-10)

➥ Switches the multi-function digital

meter ON or OFF when held down for

1 second. (p. 3-10)

MF3 (MULTI-FUNCTION 3 SWITCH)

➥ Selects one of 2 receive RF preamps

or bypasses them. (p. 5-10)

  •“P.AMP1”activates10dBpreamp.

  •“P.AMP2”activates16dBhigh-gain

preamp.

➥ Turns the preamp function OFF when

held down for 1 second. (p. 5-10)

✔ What is the preamp?

The preamp amplifies signals in the receiver front end to

improve S/N ratio and sensitivity. Select “P. AMP1” or “P.

AMP2” when receiving weak signals.

MF4 (MULTI-FUNCTION 4 SWITCH)

➥ Selects a 6 dB, 12 dB or 18 dB at-

tenuator when pushed. (p. 5-10)

➥

Turns the attenuator function OFF

when held down for 1 second. (p. 5-10)

✔ What is the attenuator?

The attenuator prevents a desired signal from being dis-

torted when very strong signals are near the desired fre-

quency, or when very strong electromagnetic fields, such

as from a broadcasting station, are near your location.

ATT

OFF

P.AMP

METER

ANT

1PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA AUTO

TUNE

LOCK

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

BK-IN MONITOR

TRANSMIT

MIC

ELEC-KEY

PHONES

AF RF

MIC RF

PWR

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

KEY

SPEED

DELAY

F-1F-2 F-3F-4 F-5F-6 F-7

LOCKTX RX SPLIT

AGC VR

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1.8

3.5

MP-W MP-R

MW V/M

A/B A=B

GENE

ENT

F-INP

∂TX

SPLIT

i7700

HF/50MHz TRANSCEIVER

AGC SQL NR NB

#3 #4 #5 #6 #8#7 #9 $0 $1 $2

■ Front panel (continued)

1-7

MF5 (MULTI-FUNCTION 5 SWITCH)

➥ Activates and selects a fast, mid

or slow AGC time constant when

pushed. (p. 5-12)

  •IntheFMmode,only“FAST”isavailable.

➥ Selects the AGC set mode when held

down for 1 second. (p. 5-12)

The AGC time constant can be set be-

tween 0.1 and 8.0 seconds (depending

on the mode), or turned OFF. When the

AGC is “OFF,” the S-meter does not

function.

✔ What is the AGC?

The AGC controls the receiver gain to produce a con-

stant audio output level, even when the received signal

strength varies dramatically. Select “FAST” for tuning and

then select “MID” or “SLOW,” depending on the receiving

condition.

MF6 (MULTI-FUNCTION 6 SWITCH)

➥ Turns the speech compressor ON or

OFF in the SSB mode. (p. 6-5)

➥ Switches the compression between

narrow, mid or wide when held down

for 1 second.

✔ What is the speech compressor?

The speech compressor compresses the transmitter

audio input to increase the average audio output level,

to increase talk power. This function is effective for long-

distance communication or when propagation conditions

are poor.

➥ Turns the 1⁄4-speed tuning function

ON or OFF in the SSB data, CW,

RTTY and PSK modes. (p. 3-6)

  •

1⁄4 function sets dial rotation to 1⁄4 of

normal speed for fine tuning.

➥ Switches between the tone encoder,

tone squelch function and no-tone op-

eration when pushed in the FM mode.

(pp. 4-33, 4-34)

➥ Selects the tone set mode when held

down for 1 second in the FM mode.

(pp. 4-33, 4-34)

MF7 (MULTI-FUNCTION 7 SWITCH)

➥ Switches the voice squelch control

function ON or OFF; useful for scan-

ning. (p. 9-3)

#4 LCD FUNCTION SWITCHES F-1 – F-7

Push to select the function indicated in the LCD

display above these switches.

 •Functionsvary,dependingontheoperatingcondition.

#5 TRANSMIT INDICATOR [TX]

Lights red while transmitting.

#6 RECEIVE INDICATOR [RX]

Lights green while receiving a signal and when the

squelch is open.

#7 LCD FUNCTION DISPLAY (p. 1-14)

Shows the operating frequency, function switch

menus, spectrum scope screen, memory list

screen, set mode settings, etc.

#8 SPLIT OPERATION INDICATOR [SPLIT]

Lights during split frequency operation.

#9 LOCK INDICATOR [LOCK] (p. 5-18)

Lights when the dial lock function is activated.

$0 TRANSMIT FREQUENCY CHECK SWITCH

[XFC] (p. 6-6)

Monitors the transmit frequency (including ∂TX

frequency offset) when held down during split fre-

quency operation.

 •Whilepushingthisswitch,thetransmitfrequencycan

be changed with the main dial, keypad, memo pad or

∫ / √ switches.

 •WhenthesplitlockfunctionisturnedON,pushing

[XFC] cancels the dial lock function. (p. 6-7)

$1 MEMORY UP/DOWN SWITCHES ∫ / √

(p. 8-2)

Push to select the desired memory channel.

 •MemorychannelscanbeselectedbothinVFOand

memory modes.

$2 KEYPAD

➥ Pushing a key selects the operating band.

(p. 3-4)

   •

GENE • selects the general coverage band.

➥ Pushing the same key 2 or 3 times calls up

other stacked frequencies in the band. (p. 3-4)

   •Icom’striplebandstackingregistermemorizes3fre-

quencies in each band.

➥ After pushing F-INP

ENT , enters a frequency or

memory channel. Pushing F-INP

ENT or ∫ /

√ is necessary to end the entry. (pp. 3-5,

8-2)

   •Toenter14.195MHz,push F-INP

ENT 1.8 1 10 4

GENE • 1.8 1 28 9 14 5 F-INP

ENT .

VSC

OFF

TONE

OFF

COMP

OFF

WIDE

AGC

MID

PANEL DESCRIPTION

1-8

$3 MODE SWITCHES

Selects the desired mode. (p. 3-8)

 •Announcesselectedmodeviathespeechsynthesizer.

(p. 12-15)

SSB Selects USB and LSB modes alter-

nately.

CW Selects CW and CW-R (CW reverse)

modes alternately.

RTTY/PSK ➥ Switches between RTTY and PSK

mode.

 ➥ Switches RTTY and RTTY-R (RTTY

reverse) mode when held down for 1

second in RTTY mode.

 ➥ Switches PSK and PSK-R (PSK re-

verse) mode when held down for 1

second in PSK mode.

AM/FM Selects AM and FM modes alternately.

DATA ➥ Selects SSB, AM or FM data mode

(USB-D, LSB-D, AM-D, FM-D) when

pushed in SSB, AM or FM mode, re-

spectively.

 ➥ Switches D1, D2 and D3 when held

down for 1 second.

$4 QUICK TUNING SWITCH [TS]

➥ Turns the quick tuning step ON or OFF. (p. 3-6)

   •Whilethequicktuningindicator,“Z,” is displayed

above the frequency display, the frequency can be

changed in programmed kHz steps.

   •0.1,1,5,9,10,12.5,20and25kHzstepsareavail-

able for each operating mode independently.

➥ When the quick tuning step is OFF, hold down

for 1 second to turn the 1 Hz tuning step ON or

OFF. (p. 3-7)

➥ When the quick tuning step is ON, hold down

for 1 second to enter quick tuning step set

mode. (p. 3-6)

$5 VFO SELECT SWITCH A/B

PushtoselectbetweenVFO-AandVFO-B.

 •Switchesbetweentransmitfrequencyandreceivefre-

quency when the split frequency function is ON. (p. 6-6)

$6 MEMORY WRITE SWITCH MW (p. 8-3)

Stores the selected readout frequency and operat-

ing mode into the displayed memory channel when

held down for 1 second.

 •ThisfunctionisavailablebothinVFOandmemory

modes.

1PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA AUTO

TUNE

LOCK

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

BK-IN MONITOR

TRANSMIT

MIC

ELEC-KEY

PHONES

AF RF

MIC RF

PWR

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

KEY

SPEED

DELAY

F-1F-2 F-3F-4 F-5F-6 F-7

LOCKTX RX SPLIT

AGC VR

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1.8

3.5

MP-W MP-R

MW V/M

A/B A=B

GENE

ENT

F-INP

∂TX

SPLIT

i7700

HF/50MHz TRANSCEIVER

AGC SQL NR NB

$5 $7 $8 $9 %0 %2$6

%8 %9%7 ^0

$4 %1

%4 %5

%6%3

■ Front panel (continued)

1-9

$7 MEMO PAD-WRITE SWITCH MP-W (p. 8-7)

Programs the displayed readout frequency and op-

erating mode into a memo pad.

 •The5mostrecententriesremaininmemopads.

 •Thememopadcapacitycanbeexpandedfrom5to10

in set mode. (p. 12-15)

$8 MEMO PAD-READ SWITCH MP-R (p. 8-7)

Each push calls up a frequency and operating

mode in a memo pad. The 5 (or 10) most recently

programmed frequencies and operating modes

can be recalled, starting from the most recent.

 •Thememopadcapacitycanbeexpandedfrom5to10

in set mode. (p. 12-15)

$9 VFO/MEMORY SWITCH V/M

➥ Switches the selected readout operating mode

betweentheVFOandmemorywhenpushed.

(pp. 3-3, 8-2)

➥TransfersthememorycontentstoVFOwhen

held down for 1 second. (p. 8-4)

%0 VFO EQUALIZING SWITCH A=B (p. 3-3)

 TransfersthedisplayedVFOfrequency(VFO-Aor

VFO-B)totheundisplayedVFOfrequency(VFO-B

orVFO-A)whenhelddownfor1second.

%1 FILTER SWITCH FILTER (p. 5-14)

➥ Selects one of 3 IF filter settings.

➥ Enters the filter set screen when held down for

1 second.

%2 AUDIO PEAK FILTER/TWIN PEAK FILTER

SWITCH APF/TPF

During CW mode operation (p. 4-6)

➥ Push to turn the audio peak filter ON or OFF.

   •“

APF

” appears when audio peak filter is in use.

➥ Hold down for 1 second to select the APF pass-

band width from WIDE, MID and NAR or from

320, 160 and 80 Hz depending on APF type

setting.

During RTTY mode operation (p. 4-14)

➥ Push to turn the twin peak filter ON or OFF.

   •“

TPF

” appears when twin peak filter is in use.

%3 MINI SPECTRUM SCOPE SWITCH M.SCOPE

(p. 5-4)

➥ Push to turn the mini spectrum scope screen

ON or OFF.

   •Theminispectrumscopescreencanbedisplayed

with another screen, such as memory or set mode

screen, simultaneously.

➥ Hold down for 1 second to turn ON the spec-

trum scope screen.

%4 VOICE MEMORY RECORD SWITCH REC

➥ Push to record the previous received signal for

the preset time period. (p. 7-7)

   •Thepresettimeperiodcanbesetinvoicesetmode.

(p. 7-13)

➥

Hold down for 1 second to record a QSO (Com-

munication) audio onto a memory device. (p. 7-2)

   •Holddownthisswitchfor1secondtostoprecord-

ing.

%5 VOICE MEMORY PLAYBACK SWITCH PLAY

(p. 7-4)

➥ Plays back the previously recorded audio for the

preset time period when pushed.

➥ Plays back all of the previously recorded audio

when held down for 1 second.

%6 EXIT/SET SWITCH EXIT/SET

➥Pushtoexit,orreturntothepreviousscreen

display during spectrum scope, memory, scan

or set mode screen display.

➥ Displays set mode menu screen when held

down for 1 second.

%7 MAIN DIAL

Changes the displayed frequency, selects set

mode setting, etc.

%8 LOCK SWITCH [LOCK] (p. 5-18)

Push to switch the dial lock function ON or OFF.

%9 SPEECH SWITCH SPEECH (p. 3-11)

➥ Push to announce the S-meter indication and

the selected frequency.

➥ The selected operating mode is additionally an-

nounced when held down for 1 second.

^0 SPLIT SWITCH SPLIT (p. 6-6)

➥ Turns the split function ON or OFF when

pushed.

➥ Turns the split function ON. When held down for

1 second in non-FM modes, transfers the unse-

lectedVFO’sreadoutfrequencytotheselected

VFO’sreadoutandsetstheunselectedVFOto

transmitVFO.(Quick split function)

   •Theoffsetfrequencyisshiftedfromtheselected

VFOfrequencyinFMmode.(p.12-13)

   •ThequicksplitfunctioncanbeturnedOFFusingset

mode. (p. 12-13)

➥ Turns the split function ON and shifts the unse-

lectedVFOfrequencyafterinputtinganoffset.

PANEL DESCRIPTION

1-10

^1 PASSBAND TUNING CONTROLS [TWIN-PBT]

(p. 5-13)

Adjusts the receiver’s IF filter “passband width” via

the DSP.

 •Passbandwidthandshiftfrequencyaredisplayedin

the multi-function display.

 •Holddown PBT-CLR for 1 second to clear the PBT

settings.

 •ThePBTisadjustablein50HzstepsintheSSB/CW/

RTTY/PSK modes, and 200 Hz in the AM mode. In this

time, the shift value changes in 25 Hz steps in the SSB/

CW/RTTY/PSK modes, and 100 Hz in the AM mode.

 •ThesecontrolsfunctionasanIFshiftcontrol.

✔ What is the PBT control?

The PBT function electronically modifies the IF pass-

band width to reject interference. This transceiver uses

the DSP circuit for the PBT function.

PBT2

PBT1

Low cutHigh cut Center

–+

^2 PBT CLEAR SWITCH PBT-CLR (p. 5-13)

Clears the PBT settings when held down for 1 sec-

ond.

 •The[PBT-CLR]indicatorabovethisswitchlightswhen

PBT is in use.

^3 DIGITAL RF SELECTOR SWITCH DIGI-SEL

(p. 5-19)

Turns the digital RF selector ON or OFF.

 •The[DIGI-SEL]indicatorlightsgreenwhentheprese-

lector is in use.

^4 DIGITAL RF SELECTOR CONTROL [DIGI-SEL]

(p. 5-18)

Adjusts the digital RF selector center frequency.

 •Thecontrolcanbereassignedastheaudiopeakfilter

adjustment (p. 12-15)

Higher

frequency

Lower

frequency

1PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA AUTO

TUNE

LOCK

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

BK-IN MONITOR

TRANSMIT

MIC

ELEC-KEY

PHONES

AF RF

MIC RF

PWR

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

KEY

SPEED

DELAY

F-1F-2 F-3F-4 F-5F-6 F-7

LOCKTX RX SPLIT

AGC VR

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1.8

3.5

MP-W MP-R

MW V/M

A/B A=B

GENE

ENT

F-INP

∂TX

SPLIT

i7700

HF/50MHz TRANSCEIVER

AGC SQL NR NB

&1 &0 ^9

■ Front panel (continued)

1-11

^5 MANUAL NOTCH FILTER CONTROL [NOTCH]

(outer control; p. 5-19)

 Variesthenotchfrequencyofthemanualnotch

filter to reject an interfering signal while the manual

notch function is ON.

 •Notchfiltercenterfrequency:

SSB : –1060 Hz to 4040 Hz

CW : CW pitch freq. + 2540 Hz to CW pitch freq.

–2540 Hz

AM : –5100 Hz to 5100 Hz

^6 NOTCH SWITCH NOTCH (p. 5-19)

➥ Switches the notch function between auto, man-

ual and OFF in the SSB and AM modes.

➥ Turns the manual notch function ON or OFF

when pushed in the CW, RTTY and PSK31

mode.

➥ Turns the auto notch function ON or OFF when

pushed in FM mode.

   •“

” appears when manual notch is in use.

   •“

” appears when auto notch is in use.

➥ Switches the manual notch characteristics from

wide, middle and narrow when held down for 1

second.

✔ What is the notch function?

The notch function is a narrow filter that eliminates un-

wanted CW or AM carrier tones while preserving the de-

sired voice signal. The DSP circuit automatically adjusts

the notch frequency to effectively eliminate unwanted

tones.

^7 RIT/∂TX CONTROL [RIT/∂TX] (pp. 5-11, 6-4)

Shifts the receive and/or transmit frequency with-

out changing the transmit and/or receive frequency

shownonthemainVFO.

 •Rotatethecontrolclockwisetoincreasethefrequency,

or rotate the control counterclockwise to decrease the

frequency. The RIT or ∂TX functions must be ON.

 •Theshiftfrequencyrangeis±9.999kHzin1Hzsteps

(or ±9.99 kHz in 10 Hz steps).

^8 CW PITCH CONTROL [CW PITCH] (p. 4-5)

Shifts the received CW audio pitch and the CW

side tone pitch without changing the operating fre-

quency.

^9 RIT SWITCH RIT (p. 5-11)

➥ Tur ns the RIT function ON or OFF when

pushed.

   •Use[RIT/∂TX] control to vary the RIT frequency.

➥ Adds the RIT shift frequency to the operating

frequency when held down for 1 second.

✔ What is the RIT function?

Receiver incremental tuning (RIT) shifts the receive fre-

quency without shifting the transmit frequency.

This is useful for fine tuning stations calling you off-fre-

quency or when you prefer to listen to slightly different-

sounding voice characteristics, etc.

&0 CLEAR SWITCH CLEAR (pp. 5-11, 6-4)

Clears the RIT/∂TX shift frequency when held

down for 1 second or when pushed momentarily,

depending on the quick RIT/∂TX clear function

setting (p. 12-15).

&1 ∂TX SWITCH ∂TX (p. 6-4)

➥ Turns the ∂TX function ON or OFF when

pushed.

   •Use[RIT/∂TX] control to vary the ∂TX frequency.

➥ Adds the ∂TX shift frequency to the operating

frequency when held down for 1 second.

✔ What is the ∂TX function?

∂TX shifts the transmit frequency without shifting the re-

ceive frequency. This is useful for simple split frequency

operation in CW, etc.

High

frequency

Low

frequency

Frequency

increases

Frequency

decreases

Higher

frequency

Lower

frequency

PANEL DESCRIPTION

q ANTENNA CONNECTOR 1 [ANT 1] (p. 2-5)

w ANTENNA CONNECTOR 2 [ANT 2] (p. 2-5)

e ANTENNA CONNECTOR 3 [ANT 3] (p. 2-5)

r ANTENNA CONNECTOR 4 [ANT 4] (p. 2-5)

Accept a 50 Ω antenna with a PL-259 plug con-

nector.

t GROUND TERMINAL [GND] (p. 2-4)

Connect this terminal to a ground to prevent elec-

tricalshocks,TVI,BCIandotherproblems.

y CIRCUIT BREAKER

Cuts off the AC input when over-current occurs.

u EXTERNAL DISPLAY TERMINAL

[EXT-DISPLAY] (p. 2-7)

 Connectstoanexternaldisplaymonitor.

 •Atleast800×600pixeldisplayisnecessary.

i ETHERNET CONNECTOR [LAN] (p. 16-6)

Connects to a PC through a LAN (Local Area Net-

work).

o CI-V REMOTE CONTROL JACK [REMOTE]

(pp. 2-6, 14-2)

➥ Connects a PC via the optional CT-17 c i -v l e v e l

c o n v e r t e r forexternalcontrolofthetransceiver.

➥ Used for transceive operation with another Icom

CI-Vtransceiverorreceiver.

!0 RS-232C TERMINAL [RS-232C] (p. 2-6)

Connects an RS-232C cable, D-sub 9-pin to con-

nect the IC-7700 to a PC.

Can be used to remotely control the IC-7700

without the optional CT-17, or for RTTY/PSK31

decoded signal output. The [RS-232C] interface is

wired as a modem (DCE).

!1 MAIN POWER SWITCH [I/O] (p. 3-2)

Turns the internal power supply ON or OFF.

!2 AC POWER SOCKET [AC] (p. 2-5)

Connects the supplied AC power cable to an AC

line-voltage receptacle.

!3 REFERENCE SIGNAL INPUT/OUTPUT

TERMINAL [REF I/O]

Inputs/outputs a 10 MHz reference signal.

!4 STRAIGHT KEY JACK [CW KEY] (p. 2-5)

 Acceptsastraightkeyorexternalelectronickeyer

with 1⁄4 inch standard plug.

 •[ELEC-KEY]onthefrontpanelcanbeusedfora

straightkeyorexternalelectronickeyer.Deactivatethe

internal electronic keyer in keyer set mode. (p. 4-12)

1-12

1PANEL DESCRIPTION

ALC

ADJ

ALCRELAYCW KEY

EXT

KEYPAD

METER

DC OUT

15V

MAX1A

REF I/O

10MHz

10dBm

INOUT

REMOTE RS

232C

EXT

DISPLAY

RX ANT

INOUT

S/P DIF

ACC

EXT

ANT 1 ANT 2 ANT 3 ANT 4

GND

15A

VERTER

u i o !0

!4 !3!5!6!7!8!9@0@1@2@3@4@5@6@7@8

t yqwer

■ Rear panel

(+)

(_)

1-13

!5 S/P DIF INPUT TERMINAL [S/P DIF– IN] (p. 2-7)

!6 S/P DIF OUTPUT TERMINAL [S/P DIF– OUT]

(p. 2-7)

 ConnectsexternalequipmentthatsupportsS/P

DIF input/output.

!7 ALC LEVEL ADJUSTMENT POT [ALC ADJ]

Adjusts the ALC levels.

No adjustment is required when the ALC output

level of a connected non-Icom linear amplifier is 0

to–4VaDC.

!8 ALC INPUT JACK [ALC] (p. 2-8)

Connects to the ALC output jack of a non-Icom lin-

ear amplifier.

!9 T/R CONTROL JACK [RELAY] (p. 2-8)

Connects to ground when transmitting to control an

externalunit,suchasanon-Icomlinearamplifier.

@0 ACCESSORY SOCKET 1 [ACC 1]

@1 ACCESSORY SOCKET 2 [ACC 2]

 Enableconnectionofexternalequipmentsuchas

a linear amplifier, an automatic antenna selector/

tuner, a TNC for data communications, and so on.

 •Seepage2-11forsocketinformation.

EXTERNAL SPEAKER JACK [EXT-SP]

(p. 2-6)

 Connectsanexternalspeaker(4–8Ω), if desired.

@3 EXTERNAL KEYPAD JACK [EXT KEYPAD]

(p. 2-7)

 Connectsanexternalkeypadfordirectvoicemem-

ory or electronic keyer control.

Transceiver mute control line (both transmit and

receive) is also supported.

@4 METER JACK [METER] (p. 2-7)

Outputs a signal showing received signal strength,

transmitoutputpower,VSWR,ALC,speechcom-

pression,Vd or Idlevelforexternalmeterindica-

tion.

@5 DC OUTPUT JACK [DC OUT] (p. 2-7)

 Outputsaregulated14VDC(approximately)for

externalequipment.Connectedinparallelwith

13.8Voutputsof[ACC1]and[ACC2].(maximum

1 A in total)

@6 TRANSVERTER CONNECTOR [X-VERTER]

(p. 2-6)

 Externaltransverterinput/outputconnector.

Activated by voltage applied to [ACC 2] pin 6, or

when the transverter function is in use. (pp. 2-11)

@7 RECEIVE ANTENNA IN [RX ANT– IN]

@8 RECEIVE ANTENNA OUT [RX ANT– OUT]

Located between the transmit/receive switching

circuit and receiver’s RF stage.

Connectsanexternalunit,suchaspreamplifieror

RF filter, using BNC connectors, if desired.

Whennoexternalunitisconnected,[RXANT–

IN] and [RX ANT– OUT] must be deactivated

and shorted by the switching relay internally. This

setting is available on the antenna set screen.

(p. 10-5)

NOTE: T/R control voltage and current must be

lowerthan 16VDC/0.5A(or 250V AC,

200 mA with MOSFET switching).

PANEL DESCRIPTION

Receiver

Transmitter

[RX ANT]

OUT

Transmit/Receive

switching circuit

ANT

q S/RF METER (pp. 3-10, 3-11)

Shows the signal strength while receiving. Shows

the relative output power, SWR, ALC or compres-

sion levels while transmitting.

 •Atotalof3metertypesareavailable.

w SHIFT FREQUENCY INDICATOR (p. 5-13)

Shows the shift frequency of the IF filter.

e BAND WIDTH INDICATOR (p. 5-13)

Shows the passband width of the IF filter.

r BANDPASS FILTER INDICATOR

Appears when the narrow filter (500 Hz or less) is

selected during CW, RTTY or PSK31 operation.

t PASSBAND WIDTH INDICATOR (p. 5-13)

Graphically displays the passband width for twin

PBT operation and center frequency for IF shift op-

eration.

y NOTCH INDICATOR (p. 5-19)

➥ “

” appears when the manual notch function

is in use. This function is available in SSB, CW,

RTTY, PSK and AM modes.

➥ “

” appears when the auto notch function is

in use. This function is available in SSB, AM

and FM modes.

u RTTY TUNING INDICATOR

Shows the tuning condition in RTTY mode.

1-14

1PANEL DESCRIPTION

oetwyri!0

■ LCD display

13579

250W200100 150500

+20 +40 +60dB

13579

250W200100 15050

+20 +40 +60dB

• Standard meter

• Edgewise meter

• Bar meter

510

10 20

44 52V

50 100 150 200 250

1.5

SWR

COMP ALC

59+20 +40 +60dB

∞

1-15

PANEL DESCRIPTION

i APF/TPF INDICATOR

➥ “

APF

” appears when the audio peak filter func-

tion is in use. This function is available in CW

mode. (p. 4-6)

➥ “

TPF

” appears when the twin peak filter func-

tion is in use. This function is available in RTTY

mode. (p. 4-14)

o CLOCK READOUT

Shows the current time. Local and UTC time can

be indicated at the same time.

!0 USB-MEMORY INDICATOR

Appears when USB flash drive is connected and

blinks while reading or writing the USB flash drive.

!1 RIT INDICATOR

Appears when RIT function is in use.

!2 ∂TX INDICATOR

Appears when ∂TX function is in use.

!3 LAN INDICATOR

Appears when the Remote station access the trans-

ceiver through the LAN. (An optional RS-BA1 is re-

quired.)

!4 RIT/∂TX SHIFT FREQUENCY INDICATOR

Shows the shift frequency for the RIT or ∂TX func-

tion.

!5 IF FILTER INDICATOR (p. 5-14)

Shows the selected IF filter number.

!6 QUICK TUNING INDICATOR (p. 3-6)

Appears when the quick tuning step function is in

use.

!7 FREQUENCY READOUTS

Shows the operating frequency.

!8 MULTI-FUNCTION SCREEN

Shows the screens for the multi-function digital

meter, spectrum scope, voice recorder, memory

list, scan, memory keyer, RTTY decoder, PSK de-

coder, IF filter selection or set modes, etc.

!9 LCD FUNCTION SWITCH GUIDE

Indicates the function of the LCD function switches

( F-1 – F-7 ).

@0 MEMORY CHANNEL READOUTS

➥ Shows the selected memory channel contents

inVFOmode.

➥ShowstheVFOcontentsinmemorymode.

@1 MULTI-FUNCTION SWITCH GUIDE

Indicates the function of the multi-function

switches.

@2 SELECT MEMORY CHANNEL INDICATOR (p. 9-7)

Indicates the displayed memory channel is set as

a select memory channel.

@3 SELECT ANTENNA INDICATOR

Indicates the selected antenna.

@4 TX INDICATOR

➥ “

” appears while transmitting.

➥ Indicates the frequency readout for transmit.

   •Appearsonthesubreadoutwhenthesplitfunction

is turned ON.

   •ATXindicatorwithdotedrectangle,“

” is dis-

played, instead of the regular “

” TX indicator,

when a frequency outside of an amateur band

frequency range is selected. This function can be

turned OFF in set mode, if desired. (pp. 3-13, 12-12)

@4 VFO/MEMORY CHANNEL INDICATOR (p. 3-3)

 IndicatestheVFOmodeorselectedmemorychan-

nel number.

@5 MODE INDICATOR

Shows the selected mode.

1-16

1PANEL DESCRIPTION

The following screens can be selected from the start

up screen. Choose the desired screen using the fol-

lowing chart.

Pushing EXIT/SET several times returns to the start

up screen. See page 12-3 for set mode arrangement.

• Spectrum scope screen (p. 5-2)

• Voice recorder screen (p. 7-3)

• RTTY decoder screen (RTTY mode; p. 4-13)

• Memory keyer screen (CW mode; p. 4-8)

• Memory list screen (p. 8-5)

• PSK31 decoder screen (PSK mode; p. 4-21)

• Scan screen (VFO mode; p. 9-4)

• Scan screen (Memory mode; p. 9-6)

• Set mode menu screen (p. 12-2)

F-1 F-2 F-3

F-3

F-4

F-5

F-2 F-5

• Audio scope screen (p. 5-20)

F-6F-3

F-7F-3

F-4 F-5 F-6 F-7

■ Screen menu arrangement

2-1

INSTALLATION AND CONNECTIONS Section 2