Icom IC-7700 User Manual

HF/50 MHz TRANSCEIVER

i7700

Instruction Manual

A-6612H-1EX

Printed in Japan

© 2007 Icom Inc.

i

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
development 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 im-

portant safety and operating instructions for the IC-7700.

EXPLICIT DEFINITIONS

TRADEMARKS

Icom, Icom Inc. and the logo are registered trademarks of Icom
Incorporated (Japan) in the United States, the United Kingdom, Germany,
France, Spain, Russia and/or other countries.

WORD DEFINITION

RR

WARNING

Personal injury, fire hazard or electric shock may
occur.

CAUTION Equipment damage may occur.

NOTE

If disregarded, inconvenience only. No risk of person­al injury, fire or electric shock.

ii

PRECAUTIONS

R WARNING 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 vol­ume levels. Hearing experts advise against continuous
high volume operation. If you experience a ringing in
your ears, reduce the volume or discontinue use.

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.

R CAUTION! NEVER put the transceiver in any

unstable place (such as on a slanted surface or vi­brated place). This may cause injury and/or damage to
the transceiver.

R 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.

R CAUTION! NEVER change the internal set-

tings of the transceiver. This may reduce transceiver
performance and/or damage to the transceiver.

In particular, incorrect settings for transmitter circuits,
such as output power, idling current, etc., might dam­age the expensive final devices.

The transceiver warranty does not cover any problems
caused by unauthorized internal adjustment.

R CAUTION! NEVER touch the transceiver top

cover when transmitting continuously for long periods.
The top cover may be hot.

R CAUTION! 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 CAUTION! NEVER block any cooling vents on

the top, rear or bottom of the transceiver.

R CAUTION! NEVER expose the transceiver to

rain, snow or any liquids.

R CAUTION! NEVER install the transceiver in a

place without adequate ventilation. Heat dissipation
may be reduced, and the transceiver may be dam­aged.

R CAUTION! NEVER operate or touch the trans-

ceiver with wet hands. This may result in an electric
shock or damage to the transceiver.

R CAUTION! The transceiver weighs approx. 22.5

kg (50 lb). Always have two people available to carry,
lift or turn over the transceiver.

R CAUTION! The line-voltage receptacle must be

near the transceiver and must be easily accessible.
Avoid extension cords.

DO NOT

use chemical agents such as benzine or al­cohol when cleaning the IC-7700, as they can damage
the transceiver’s surfaces.

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

ally desire to transmit.
AVOID using or storing the transceiver in areas with

temperatures below ±0°C (+32°F) or above +50°C
(+122°F).

AVOID placing the transceiver in excessively dusty en­vironments or in direct sunlight.

AVOID placing 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 inadver­tent 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.

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 transceiver
and microphone as far away as possible from the mag­netic navigation compass to prevent erroneous indica­tions.

Turn [I/O] switch (on the rear panel) OFF and/or dis­connect 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 regulations.

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 Main dial

‡

……………………… 1

!5 Main dial screw

‡

…………………………………… 1

!6 Hexagonal wrench

‡

………………………………… 1

*May differ from that shown according to version.

†

These screws are used when removing rack mounting han­dles. See p.2-3 for rack mounting handle detachment de­tails.

‡

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

iii

SUPPLIED ACCESSORIES

q

!0 !1 !2

!3 !4 !5 !56

yui

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iv

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-Memory 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

■ Microphone connector information ………………………………… 2-10

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

D SM-20 ……………………………………………………………… 2-10
D HM-36 ……………………………………………………………… 2-10

■ Accessory connector information …………………………………… 2-11

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
D Band edge warning beep …………………………………………… 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

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 indication ………………………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 indication ………………………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
D Convenient functions for transmit …………………………………4-31

v

TABLE OF CONTENTS

vi

■ 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 indication ……………………………………… 5-4
D Scope set mode ……………………………………………………… 5-4

■ Preamplifier ……………………………………………………………… 5-9

■ Attenuator ……………………………………………………………… 5-9

■ RIT function …………………………………………………………… 5-10

D RIT monitor function …………………………………………………5-10

■ AGC function …………………………………………………………… 5-11

D Selecting the preset value …………………………………………5-11
D Adjusting the AGC time constant …………………………………5-11
D Setting the AGC time constant preset value ………………………5-11

■ Twin PBT operation …………………………………………………… 5-12

■ IF filter selection ……………………………………………………… 5-13

D IF filter selection …………………………………………………… 5-13
D Filter passband width setting (except FM mode) ……………… 5-13
D Roofing filter selection ……………………………………………… 5-14
D DSP filter shape …………………………………………………… 5-14
D Filter shape set mode ……………………………………………… 5-14

■ Noise blanker ………………………………………………………… 5-16

D NB set mode ………………………………………………………… 5-16

■ Noise reduction ………………………………………………………… 5-17

■ Dial lock function ……………………………………………………… 5-17

■ Notch function ………………………………………………………… 5-18

■ Digital selector ………………………………………………………… 5-18

■ Autotune function ……………………………………………………… 5-19

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

■ About digital voice recorder …………………………………………… 7-2

■ Recording a received audio …………………………………………… 7-3

D Basic recording ……………………………………………………… 7-3
D One-touch recording ………………………………………………… 7-3

■ Playing the recorded audio …………………………………………… 7-4

D Basic playing ………………………………………………………… 7-4
D One-touch playing …………………………………………………… 7-4

■ Protect the recorded contents ………………………………………… 7-5

■ Erasing the recorded contents ………………………………………… 7-5

■ Recording a message for transmit …………………………………… 7-6

D Recording …………………………………………………………… 7-6
D Confirming a message for transmit ………………………………… 7-6

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

■ Sending a recorded message ………………………………………… 7-8

D Transmit level setting ……………………………………………… 7-8

■ Voice set mode ………………………………………………………… 7-9

■ Saving a voice memory into the USB-Memory …………………… 7-10

D Saving the received audio memory ……………………………… 7-10
D Saving the TX memory …………………………………………… 7-10

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

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

√

∫

vii

TABLE OF CONTENTS

viii

■ 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 ……………………………………………………… 12-9

■ Others set mode …………………………………………………… 12-12

■ USB-Memory set menu …………………………………………… 12-19

D USB-Memory set screen arrangement ………………………… 12-19
D Save option set mode …………………………………………… 12-20
D Load option set mode …………………………………………… 12-21

■ File saving …………………………………………………………… 12-22

■ File loading …………………………………………………………… 12-23

■ Changing a file name ……………………………………………… 12-24

■ Deleting a file ………………………………………………………… 12-25

■ Unmounting USB-Memory ………………………………………… 12-25

■ Formatting the USB-Memory ……………………………………… 12-26

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-Memory ……………………………………………… 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

TABLE OF CONTENTS

■ 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 To send/read memory contents …………………………………… 14-9
D Band stacking register …………………………………………… 14-9
D Codes for memory keyer contents ……………………………… 14-9
D Codes for memory name, opening message

and CLOCK2 name contents ……………………………………… 14-9

D Offset frequency setting ………………………………………… 14-10
D Repeater tone/tone squelch frequency setting ………………… 14-10
D SSB transmission passband width setting …………………… 14-10
D Color setting ……………………………………………………… 14-10
D Bandscope edge frequency setting …………………………… 14-10
D Data mode with filter width setting ……………………………… 14-10
D Antenna memory setting ………………………………………… 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

■ Caution ………………………………………………………………… 16-2

■ Preparation …………………………………………………………… 16-3

D Firmware and firm utility …………………………………………… 16-3
D File downloading …………………………………………………… 16-3

■ Firmware update— USB-Memory …………………………………… 16-4

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

D Connections ………………………………………………………… 16-6
D IP address setting ………………………………………………… 16-7
D Updating from a PC ………………………………………………… 16-8

ix

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 (p. 3-2)

➥ Push to turn the transceiver power ON.

• The [POWER] indicator above this switch lights green
when powered ON.

➥ Push and hold for 1 sec. 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

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 (p. 10-6)

➥ Turns the internal antenna tuner ON and OFF

(bypass) 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 pushed

and held for 1 sec.

• The [TUNER] indicator blinks red during manual tun­ing.

• When the tuner cannot tune the antenna, the tuning
circuit is bypassed automatically after 20 sec.

r TIMER SWITCH (p. 11-4)

➥ Turns the sleep or daily timer function ON and

OFF.

• The [TIMER] indicator above this switch lights green
when the timer is in use.

➥ Enters timer set mode when pushed and held for

1 sec.

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)

•Astraight key jack is located on the rear panel. See [CW
KEY] on p. 1-12.

• Keyer polarity (dot and dash) can be reversed in keyer
set mode. (p. 4-12)

•A4-channel memory keyer is available for your conve­nience. (p. 4-8)

TIMER

TUNER

TRANSMIT

POWER

(dot)
(com)
(dash)

Turn the internal power supply ON in first. The in­ternal power supply switch is located on the rear
panel. (p. 3-2)

1

PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA

AUTO
TUNE

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

KEY SPEED

DELAY

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

LOCKTX RX SPLIT

AGC VR

NR

1

1.8 3.5

4

10 14

7

21 24

MP

M

A

GENE

50

NB

AGC SQL NR NB

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io!0 !1 !2 !3 !4

!6

■ Front panel

1-3

u MICROPHONE CONNECTOR [MIC]

Accepts an optional microphone.

• See p. 15-4 for appropriate microphones.

• See p. 2-10 for microphone connector information.

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

Adjusts microphone input gain.

• The transmit audio tone in 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 SSB,
AM or FM mode.

o VOX SWITCH

➥ Push to turn the VOX function ON and OFF dur-

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

➥ Push and hold for 1 sec. to enter VOX set mode.

(p. 6-2)

✔

What is the VOX function?

The VOX function (voice operated transmission) activates
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 min­imum (5 W*) to maximum (200 W*).

*AM mode: 5 W to 50 W

!1 BREAK-IN SWITCH

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

full-break-in)

and 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 (min.) to 48 wpm (max.) is the available range.

!3 MONITOR SWITCH (p. 6-4)

Monitors your transmitted IF signal.

• The CW sidetone functions regardless of
switch setting in 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. 5-11)

Adjusts the continuously-variable AGC circuit time
constant.

•To use [AGC] control, push ([AGC VR] indi­cator lights).

!6 SQUELCH CONTROL [SQL]

(outer control; p. 3-9)
Adjusts the squelch threshold level. The squelch
mutes noise output from the speaker (closed condi­tion) 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.

AGC VR

MONITOR

MONITOR

BK-IN

VOX

Deep

Deep

Noise squelch

Squelch

threshold

Shallow

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

1

PANEL DESCRIPTION

1-4

!7 NOISE REDUCTION LEVEL CONTROL [NR]

(inner control; p. 5-17)
Adjusts the DSP noise reduction level when the
noise reduction function is in use. Set for maximum
readability.

•To use this control, push .

!8 NOISE BLANKER CONTROL [NB]

(outer control; p. 5-16)
Adjust the noise blanker threshold level.

•To use this control, push .

!9 AGC VOLUME SWITCH (p. 5-11)

➥ Push to toggle [AGC] control usage ON and 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 pushed and

held for 1 sec.

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

(p. 2-4)
➥ Insert USB-Memory* for both reading/storing a

wide variety of the transceiver’s information and
data.

• The indicator above the connectors lights or blinks
when the transceiver reads or writes to the memory
data.

• Unmount operation should be performed before re­moving the USB-Memory* (p.12-25).

➥ Connects a PC keyboard for RTTY and PSK31

operations.

• USB keyboards* are supported.

*: USB-Memory or USB keyboard is not supplied by

Icom.

@1 NOISE REDUCTION SWITCH (p. 5-17)

Push to switch DSP noise reduction ON and 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.

NR

AGC VR

NB

NR

Audio output
increases

Audio output

decreases

Deep

Shallow

Increases

Decreases

1

PANEL DESCRIPTION

POWER

TUNER

TIMER

VOX

SSB CW

RTTY/PSK

AM/FM DATA

AUTO
TUNE

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

KEY SPEED

DELAY

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

LOCKTX RX SPLIT

AGC VR

NR

1

1.8 3.5

4

10 14

7

21 24

MP

M

A

GENE

50

NB

i7700

HF/50MHz TRANSCEIVER

AGC SQL NR NB

!7

!8

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

■ Front panel (continued)

1-5

@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.

@4 NOISE BLANKER SWITCH (p. 5-16)

➥ Switches the noise blanker ON and OFF when

pushed. The noise blanker reduces pulse-type
noise such as that generated by automobile igni­tion systems. This function cannot be used in FM
mode, or on non-pulse-type noise.

• The [NB] indicator above this switch lights green
while the function is activated.

➥ Enters blanking-width set mode when pushed

and held for 1 sec.

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

Adjusts the transmitter level at the driver stage. Ac­tive in all modes

(other than SSB mode with [COMP]

OFF)

.

@6 COMPRESSION LEVEL CONTROL [COMP]

(p. 6-5)
Adjusts the speech compression level in SSB.

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

Adjusts the transmit IF signal monitor level.

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

Adjusts the transmit/receive switching threshold
level for VOX operation.

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

Adjusts the VOX sensitivity to speaker audio to pre­vent unwanted VOX activation.

#0 LCD CONTRAST CONTROL [CONTRAST]

Adjusts the LCD contrast.

#1 LCD BRIGHTNESS CONTROL [BRIGHT]

Adjusts the LCD brightness.

#2 AUTOMATIC TUNING SWITCH [AUTOTUNE]

(p. 5-19)
Turns the automatic tuning function ON and OFF in
CW and AM modes.

NB

IMPORTANT!

When receiving a weak signal, or receiving a sig­nal with interference, the automatic tuning func­tion may tune the receiver to an undesired signal.

Dark

Bright

Push

Low

contrast

High
contrast

Push

‘More sensitive’

and confirm proper operation

‘Less sensitive’
and confirm
proper operation

Push

Low

sensitivity

High
sensitivity

Push

Monitor gain

decreases

Monitor gain
increases

Push

Compression

gain decreases

Compression
gain increases

Push

Decreases

Increases

Push

Sensitivity
increases

Sensitivity

decreases

1

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 antenna selection memory

when pushed and held for 1 sec.

• 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 RF power

(Po), SWR, ALC,

COMP, VD or ID metering during trans­mit. (p. 3-10)

➥ Switches the multi-function digital

meter ON and OFF when pushed and
held for 1 sec. (p. 3-10)

MF3 (MULTI-FUNCTION 3 SWITCH)

➥ Selects one of 2 receive RF preamps

or bypasses them. (p. 5-9)

•“P. AMP1” activates 10 dB preamp.

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

➥ Turns the preamp function OFF when

pushed and held for 1 sec. (p. 5-9)

✔

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 6 dB, 12 dB or 18 dB attenua-

tor when pushed. (p. 5-9)

➥ Turns the attenuator function OFF

when pushed and held for 1 sec.
(p. 5-9)

✔

What is the attenuator?

The attenuator prevents a desired signal from being dis­torted when very strong signals are near the desired fre­quency, or when very strong electromagnetic fields, such
as from a broadcasting station, are near your location.

1

PANEL DESCRIPTION

SSB CW

RTTY/PSK

AM/FM DATA

AUTO
TUNE

LOCK

TS

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

RF

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

D

DELAY

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

LOCKTX RX SPLIT

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1

1.8

2

3.5

3

7

4

10

5

14

6

18

7

21

8

24

MP-W MP-R

MW V/M

A/B A=B

9

28

GENE

0

50

ENT

F-INP

∂TX

NB

SPLIT

NSCEIVER

NB

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

■ Front panel (continued)

ANT

1

METER

Po

P.AMP

1

ATT
OFF

1-7

MF5 (MULTI-FUNCTION 5 SWITCH)

➥ Activates and selects fast, mid-range

or slow AGC time constant when
pushed. (p. 5-11)

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

➥ Enters the AGC set mode when

pushed and held for 1 sec. (p. 5-11)

AGC time constant can be set between

0.1 to 8.0 sec.

(depends on mode), or

turned OFF. When AGC is “OFF,” the
S-meter does not function.

✔

What is the AGC?

The AGC controls receiver gain to produce a constant
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 and

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

➥ Switches the narrow, middle or wide

compression when pushed and held
for 1 sec.

✔

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

and OFF in 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 op­eration when pushed in FM mode.
(pgs. 4-33, 4-34)

➥ Enters the tone set mode when

pushed and held for 1 sec. in FM
mode. (pgs. 4-33, 4-34)

MF7 (MULTI-FUNCTION 7 SWITCH)

➥ Switches the voice squelch control

function ON and OFF; useful for scan­ning. (p. 9-3)

#4 LCD FUNCTION SWITCHES –

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. 5-17)

Lights when the dial lock function is activated.

$0 TRANSMIT FREQUENCY CHECK SWITCH

[XFC] (p. 6-6)

Monitors the transmit frequency

(including ∂TX fre-

quency offset)

when pushed and held 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)

• 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 fre­quencies in each band.

➥ After pushing , enters a frequency or

memory channel. Pushing or /

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

8-2)

• e.g. to enter 14.195 MHz, push

.

F-INP

ENT

14

5

28

9

1.8

1

GENE

•

10

4

1.8

1

F-INP

ENT

√

∫

F-INP

ENT

F-INP

ENT

GENE

•

√

∫

√

∫

F-7F-1

1

PANEL DESCRIPTION

AGC

MID

COMP

OFF

WIDE

1 / 4
ON

TONE

OFF

VSC
OFF

1-8

$3 MODE SWITCHES

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

• Announces selected mode via the speech synthesizer.
(p. 12-15)

Selects USB and LSB modes alter­nately.

Selects CW and CW-R

(CW reverse)

modes alternately.
➥ Switches between RTTY and PSK

mode.

➥ Switches RTTY and RTTY-R

(RTTY

reverse)

mode when pushed and held

for 1 sec. in RTTY mode.

➥ Switches PSK and PSK-R (PSK re-

verse)

mode when pushed and held

for 1 sec. in PSK mode.
Selects AM and FM modes alternately.
➥ 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

pushed and held for 1 sec.

$4 QUICK TUNING SWITCH [TS]

➥ Turns the quick tuning step ON and OFF.

(p. 3-6)

• While the quick tuning indicator, “Z,” is displayed
above the frequency indication, the frequency can be
changed in programmed kHz steps.

• 0.1, 1, 5, 9, 10, 12.5, 20 and 25 kHz steps are avail­able for each operating mode independently.

➥ When the quick tuning step is OFF, push and

hold for 1 sec. to turn the 1 Hz tuning step ON
and OFF. (p. 3-7)

➥ When the quick tuning step is ON, push and hold

for 1 sec. to enter quick tuning step set mode.
(p. 3-6)

$5 VFO SELECT SWITCH

Switches the selected VFO between the VFO-Aand
VFO-B when pushed.

• Switches between transmit frequency and receive fre­quency when the split frequency function is ON. (p. 6-6)

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

Stores the selected readout frequency and operat­ing mode into the displayed memory channel when
pushed and held for 1 sec.

• This function is available both in VFO and memory
modes.

MW

A/B

DATA

AM/FM

RTTY/PSK

CW

SSB

1

PANEL DESCRIPTION

SSB CW

RTTY/PSK

AM/FM DATA

AUTO

TUNE

LOCK

TS

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

RF

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

D

DELAY

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

LOCKTX RX SPLIT

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1

1.8

2

3.5

3

7

4

10

5

14

6

18

7

21

8

24

MP-W MP-R

MW V/M

A/B A=B

9

28

GENE

0

50

ENT

F-INP

∂TX

NB

SPLIT

NSCEIVER

NB

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

%8 %9%7 ^0

$4 %1

%4 %5

$3

%6%3

■ Front panel (continued)

1-9

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

Programs the displayed readout frequency and op­erating 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 (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

➥ Switches the selected readout operating mode

between the VFO and memory when pushed.
(pgs. 3-3, 8-2)

➥ Transfers the memory contents to VFO when

pushed and held for 1 sec. (p. 8-4)

%0 VFO EQUALIZING SWITCH (p. 3-3)

Transfers the undisplayed VFO frequency to the
displayed VFO frequency when pushed and held for
1 sec.

%1 FILTER SWITCH (p. 5-13)

➥ Selects one of 3 IF filter settings.
➥ Enters the filter set screen when pushed and

held for 1 sec.

%2 AUDIO PEAK FILTER/TWIN PEAK FILTER

SWITCH
During CW mode operation (p. 4-6)

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

•“ ” appears when audio peak filter is in use.

➥ Push and hold for 1 sec. 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 and OFF.

•“ ” appears when twin peak filter is in use.

%3 MINI SPECTRUM SCOPE SWITCH

(p. 5-4)
➥ Turns the mini spectrum scope screen ON and

OFF when pushed.

• The mini spectrum scope screen can be displayed
with another screen, such as memory or set mode
screen, simultaneously.

➥ Turns the spectrum scope screen ON when

pushed and held for 1 sec.

%4 VOICE MEMORY RECORD SWITCH

(p. 7-3)
➥ Push to record the previous received signal for

the preset time period.

• The preset time period can be set in voice set mode.
(p. 7-9)

➥ Push and hold for 1 sec. to record the received

signal until the recording is cancelled.

• Push this switch momentarily to stop recording.

• The memory records the latest 30 sec. of audio.

%5 VOICE MEMORY PLAYBACK SWITCH

(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 pushed and held for 1 sec.

%6 EXIT/SET SWITCH

➥ Push to exit, or return to the previous screen in-

dication during spectrum scope, memory , scan or
set mode screen display.

➥ Displays set mode menu screen when pushed

and held for 1 sec.

%7 MAIN DIAL

Changes the displayed frequency , selects set mode
setting, etc.

%8 LOCK SWITCH [LOCK] (p. 5-17)

Push to switch the dial lock function ON and OFF.

%9 SPEECH SWITCH (p. 3-11)

➥ Push to announce the S-meter indication and the

selected frequency.

➥ The selected operating mode is additionally an-

nounced when pushed and held for 1 sec.

^0 SPLIT SWITCH (p. 6-6)

➥ Turns the split function ON and OFF when

pushed.

➥ Turns the split function ON. When pushed and

held for 1 sec. in non-FM modes, transfers the
unselected 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. 12-12)

➥ Turns the split function ON and shifts the unse-

lected VFO frequency after inputting an offset.

SPLIT

SPEECH

EXIT/SET

PLAY

REC

M.SCOPE

TPF

APF

APF/TPF

FILTER

A=B

V/M

MP-R

MP-W

1

PANEL DESCRIPTION

1-10

^1 PASSBAND TUNING CONTROLS [TWIN-PBT]

(p. 5-12)
Adjusts the receiver’s IF filter “passband width” via
the DSP.

• Passband width and shift frequency are displayed in the
multi-function display.

• Push and hold for 1 sec. to clear the PBT
settings.

• Adjustment range is set to half of the IF filter passband
width. 25 Hz steps and 100 Hz steps are available.

✔

What is the PBT control?

The PBT function electronically modifies the IF passband
width to reject interference. This transceiver uses the
DSP circuit for the PBT function.

^2 PBT CLEAR SWITCH (p. 5-12)

Clears the PBT settings when pushed and held for
1 sec.

• The [PBT-CLR] indicator above this switch lights when
PBT is in use.

^3 DIGITAL RF SELECTOR SWITCH

(p. 5-18)
Turns the digital RF selector ON and OFF.

•The [DIGI-SEL] indicator lights green when the prese­lector 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. 12-16)

DIGI-SEL

PBT-CLR

PBT-CLR

Higher
frequency

Lower

frequency

PBT2

PBT1

Low cutHigh cut Center

–+

1

PANEL DESCRIPTION

SSB CW

RTTY/PSK

AM/FM DATA

AUTO
TUNE

LOCK

TS

XFC

M.SCOPE

EXIT/SET

REC

PLAY

VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX

DIGI-SEL NOTCH

RIT/∂TX

CW PITCH

TWIN-PBT

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

LOCKTX RX SPLIT

FILTER

PBT-CLR

DIGI-SEL

APF/TPF

NOTCH

RIT

CLEAR

SPEECH

1

1.8

2

3.5

3

7

4

10

5

14

6

18

7

21

8

24

MP-W MP-R

MW V/M

A/B A=B

9

28

GENE

0

50

ENT

F-INP

∂TX

SPLIT

&1 &0 ^9

^1
^2

^3
^4
^5
^6

^7

^8

■ Front panel (continued)

1-11

^5 MANUAL NOTCH FILTER CONTROL [NOTCH]

(outer control; p. 5-18)
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 (p. 5-18)

➥ Switches the notch function between auto, man-

ual and OFF in SSB and AM modes.

➥ Turns the manual notch function ON and OFF

when pushed in CW, RTTY and PSK31 mode.

➥ Turns the auto notch function ON and 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 pushed and held
for 1 sec.

✔

What is the notch function?

The notch function is a narrow filter that eliminates un­wanted CW or AM carrier tones while preserving the de­sired voice signal. The DSP circuit automatically adjusts
the notch frequency to effectively eliminate unwanted
tones.

^7 RIT/∂∂TX CONTROL [RIT/∂∂TX] (pgs. 5-10, 6-4)

Shifts the receive and/or transmit frequency without
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 RITor ∂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 frequency .

^9 RIT SWITCH (p. 5-10)

➥ Turns the RIT function ON and OFF when

pushed.

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

➥ Adds the RIT shift frequency to the operating fre-

quency when pushed and held for 1 sec.

✔

What is the RIT function?

Receiver incremental tuning (RIT) shifts the receive fre­quency without shifting the transmit frequency.

This is useful for fine tuning stations calling you off-fre­quency or when you prefer to listen to slightly different­sounding voice characteristics, etc.

&0 CLEAR SWITCH (pgs. 5-10, 6-4)

Clears the RIT/∂TX shift frequency when pushed
and held for 1 sec. or when pushed momentarily,
depending on the quick RIT/∂TX clear function set­ting (p. 12-15)

.

&1

∂∂

TX SWITCH (p. 6-4)

➥ Turns the ∂TX function ON and OFF when

pushed.

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

➥ Adds the ∂TX shift frequency to the operating

frequency when pushed and held for 1 sec.

✔

What is the ∂∂TX function?

∂TX shifts the transmit frequency without shifting the re­ceive frequency. This is useful for simple split frequency
operation in CW, etc.

∂∂

TX

CLEAR

RIT

AN

MN

NOTCH

High
frequency

Low

frequency

Frequency
increases

Frequency

decreases

Higher
frequency

Lower

frequency

1

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 connec­tor.

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

Connect this terminal to a ground to prevent electri­cal 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 (p. 16-6)

Connects to a PC through a LAN (Local Area Net­work).

o CI-V REMOTE CONTROL JACK [REMOTE]

(pgs. 2-6, 14-2)
➥ Connects a PC via the optional CT-17

CI-VLEVEL

CONVERTER 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 con­nect 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 and 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

1

PANEL DESCRIPTION

ALC
ADJ

ALCRELAY

CW 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

12

ACC

EXT-SP

ANT 1

ANT 2

ANT 3

ANT 4

GND

AC

15A

I

X-VERTER

u i o !0

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

!1

!2

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 lin­ear 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, etc.

• See p. 2-11 for socket information.

@2

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 mem­ory 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 com­pression, V

D or ID level for external meter indication.

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

Outputs a regulated 14 V DC (approx.) for external
equipment. Connected in parallel with 13.8 V out­puts of [ACC 1] and [ACC 2]. (max. 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. (pgs. 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).

1

PANEL DESCRIPTION

Receiver

Transmitter

IN

[RX ANT]
OUT

Transmit/Receive
switching circuit

ANT

+
_

_

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

Shows the signal strength while receiving. Shows
the relative output power, SWR, ALC or compres­sion levels while transmitting.

•Atotal of 3 meter types are available.

w SHIFT FREQUENCY INDICATOR (p. 5-12)

Shows the shift frequency of the IF filter.

e BAND WIDTH INDICATOR (p. 5-12)

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. 5-12)

Graphically displays the passband width for twin
PBT operation and center frequency for IF shift op­eration.

y NOTCH INDICATOR (p. 5-18)

➥ “” 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.

AN

MN

1-14

1

PANEL DESCRIPTION

qu

!1
!2

!4
!5

!6

oetwyri!0

!8

!9

@0

@2

@1

@3

@4

@5

!7

!3

■ LCD display

S

Po

1357

9

250W200100 150500

+20+40+

60dB

S

Po

13579

250W200100 15050

0

10

+20+40+

60dB

• Standard meter

• Edgewise meter

• Bar meter

S

1

0

0

0

1

2

5

10

10

10

20

44

52V

50 100

150

200

250

15

3

1.5

ID

VD

dB

W

A

Po

SWR

COMP

ALC

5

9

+

20

+

40

+

60dB

∞

1-15

1

PANEL DESCRIPTION

i APF/TPF INDICATOR

➥ “” appears when the audio peak filter func-

tion is in use. This function is available in CW
mode. (p. 4-6)

➥ “” appears when the twin peak filter function

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-Memory is connected and
blinks while reading or writing the USB-Memory.

!1 RIT INDICATOR

Appears when RIT function is in use.

!2

∂∂

TX INDICATOR

Appears when ∂TX function is in use.

!3 RIT/∂∂TX SHIFT FREQUENCY INDICATOR

Shows the shift frequency for the RIT or ∂TX func­tion.

!4 IF FILTER INDICATOR (p. 5-13)

Shows the selected IF filter number.

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

Appears when the quick tuning step function is in use.

!6 FREQUENCY READOUTS

Shows the operating frequency.

!7 MULTI-FUNCTION SCREEN

Shows the screens for the multi-function digital
meter, spectrum scope, voice recorder, memory list,
scan, memory keyer, R TTYdecoder, PSK decoder,
IF filter selection or set modes, etc.

!8 LCD FUNCTION SWITCH GUIDE

Indicates the function of the LCD function switches
( – ).

!9 MEMORY CHANNEL READOUTS

➥ Shows the selected memory channel contents in

VFO mode.

➥ Shows the VFO contents in memory mode.

@0 MULTI-FUNCTION SWITCH GUIDE

Indicates the function of the multi-function switches.

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

Indicates the displayed memory channel is set as a
select memory channel.

@2 SELECT ANTENNA INDICA TOR

Indicates the selected antenna.

@3 TX INDICATOR

Indicates the frequency readout for transmit.

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

Indicates the VFO mode or selected memory chan­nel number.

@5 MODE INDICATOR

Shows the selected mode.

F-7

F-1

TPF

APF

1-16

1

PANEL DESCRIPTION

The following screens can be selected from the start
up screen. Choose the desired screen using the fol­lowing chart.

Pushing several times returns to the start up
screen. See p. 12-3 for set mode arrangement.

EXIT/SET

• 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-5F-2

F-5F-3

F-7F-3

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

■ Screen menu arrangement

2-1

INSTALLATION AND CONNECTIONS Section

2

■ 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-Memory 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

■ Microphone connector information ………………………………… 2-10

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

D SM-20 ……………………………………………………………… 2-10
D HM-36 ……………………………………………………………… 2-10

■ Accessory connector information …………………………………… 2-11

CAUTION!: The transceiver weighs approx. 22.5 kg (50 lb).

Always have two people available to carry, lift or
turn over the transceiver.

2-2

■ Unpacking

After unpacking, immediately report any damage to the
delivering carrier or dealer. Keep the shipping cartons.

For a description and a diagram of accessory equip­ment included with the IC-7700, see ‘Supplied acces­sories’ on p. iii of this manual.

■ Main dial attachment

The main dial is shipped unattached to the transceiver
to prevent possible damage to the dial shaft or rotary
encoder during shipping. Please attach the dial as de­scribed below.

q Slide the dial brake adjustment to the right position

(Fig. 1).

• The dial brakes move inward as shown.

w Insert the main dial set-screw into the screw hole of

the main dial, then tighten the screw until the screw
extends into the shaft hole out slightly using sup­plied hexagonal wrench (2 mm) (Fig. 2).

• Be careful that the screw does not extend out more than
1 mm (

1

/32 in).

e Attach the main dial as illustrated (Fig. 3).

• Be careful to match the correct orientation of the flat face
of the shaft and the screw hole of the dial knob.

r Tighten the screw using supplied hexagonal wrench

as illustrated (Fig. 3).

t Install the rubber cover to the main dial (Fig. 4) little

by little.

• Be careful to match the correct position of the convex
part of the rubber cover and the concave part of the dial
knob.

• Never install the rubber cover on the main dial by force.
This may cause damage to the dial shaft or rotary en­coder.

y Then adjust the main dial brake as desired.

2

INST ALLATION AND CONNECTIONS

Dial brake adjustment

Fig. 1

q

Shorter than
1 mm (

1

/32 in)

Fig. 2

w

Fig. 3

er

RR

CAUTION!: NEVER hold any controller

knob(s), such as the main dial, when carrying or lift­ing the transceiver. This will damage the dial shaft or
rotary encoder.
Once attaching the rubber cover to the main dial, it’s
hard to remove. When you remove the rubber cover
from main dial, be careful to lack your nails and/or
damage to the transceiver.

Fig. 4

Side view

t

Front side

2-3

2

INST ALLATION AND CONNECTIONS

■ Rack mounting handle detachment

The rack mounting handles are supplied attached to
the transceiver to stabilize the transceiver in the shock
absorber material in the box. If you want to remove
them, use the supplied screws as described below.

q Remove the six screws from the rack mounting han-

dles on both side and remove the rack mounting
handles.

w Tighten the supplied six screws (PH M4×8) on both

sides of the front panel and side panel.

✔

When re-packing and shipping the transceiver:

Attach the rack mounting handles using original screws
when re-packing and shipping the transceiver at any
time.

■ Selecting a location

Select a location for the transceiver that allows ade­quate air circulation, free from extreme heat, cold, or
vibrations, and away from TV sets, TV antenna ele­ments, radios and other electromagnetic sources.

The base of the transceiver has adjustable feet for
desktop use. Set the feet to one of two angles de­pending on your operating preference.

q

w

PH: Pan head

FH: Flat head

FH M4 × 15 mm

FH M4 × 9 mm

PH M4 × 8 mm

2-4

2

INST ALLATION AND CONNECTIONS

■ Grounding

To prevent electrical shock, television interference
(TVI), broadcast interference (BCI) and other prob­lems, ground the transceiver through the GROUND
terminal on the rear panel.

For best results, connect a heavy gauge wire or strap
to a long ground rod. Make the distance between the
[GND] terminal and ground as short as possible.

R WARNING: NEVERconnect the [GND]

terminal to a gas or electric pipe, since the connec­tion could cause an explosion or electric shock.

■ Antenna connection

For radio communications, the antenna is of critical im­portance, along with output power and receiver sensi­tivity. Select antenna(s), such as a well-matched 50 Ω
antenna, and feedline. We recommend 1.5:1 or better
of Voltage Standing Wave Ratio (VSWR) on your op­erating bands. The transmission line should be a coax­ial cable.

When using a single antenna, use the [ANT1] connec­tor.

CAUTION: Protect your transceiver from lightning

by using a lightning arrestor.

■ USB-Memory connection (USB-Memory: Not supplied by Icom)

Connect the USB-Memory* to the USB connector.

• Unmount operation is recommended before removing the
USB-Memory* (p.12-25).

Make sure to connect the USB-Memory correctly.
NEVER connect or remove the USB-Memory when
the read/write indicator lights or blinks.

A USB keyboard* or USB hub* can also be con-

nected to the USB connector.

*: USB-Memory, USB keyboard or USB hub is not supplied

by Icom.

Antenna SWR

Each antenna is tuned for a specified frequency
range and SWR may be increased out-of-range.
When the SWR is higher than approx. 2.0:1, the
transceiver’s power drops to protect the final transis­tors. In this case, an antenna tuner is useful to match
the transceiver and antenna. Low SWR allows full
power for transmitting. The IC-7700 has an SWR
meter to monitor the antenna SWR continuously.

PL-259 CONNECTOR INSTALLATION EXAMPLE

30 mm ≈9⁄8 in 10 mm ≈3⁄8 in 1–2 mm ≈1⁄16 in

30 mm

10 mm (soft solder)

10 mm

1–2 mm

solder solder

Soft
solder

Coupling ring

Slide the coupling ring
onto the cable. Strip
the cable jacket and
tin the braid.

Slide the connector
body on and solder it.

Screw the coupling
ring onto the
connector body.

Strip the cable as
shown at left. Tin the
center conductor.

q

w

e

r

or