Icom IC-7700 User manual

HF/50 MHz TRANSCEIVER
i7700
Instruction Manual
A-6937H-1EX-y
Printed in Japan
© 2011–2015 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 devel-
opment went into the design of your IC-7700.
DFEATURES
❍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, Australia, New Zealand, and/or other countries.
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
RDANGER! Personaldeath,seriousinjuryoranexplosionmayoccur.
RWARNING! 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.

ii
PRECAUTIONS
RDANGER HIGH RF VOLTAGE! NEVER
attach an antenna or internal antenna connector
during transmission. This may result in an electrical
shock or burn.
RWARNING! 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.
RWARNING! NEVER operate or touch the
transceiver with wet hands. This may result in an elec-
tric shock or damage to the transceiver.
RWARNING! 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.
RWARNING! 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.

qAC power cable* ................................................. 1
wFeet .............................................................. 1 pair
eSpare fuse (FGB 2 A) ......................................... 1
rRCA plugs ........................................................... 2
tDC plug ............................................................... 1
y2-conductor 1⁄8″plugs ......................................... 3
u3-conductor 1⁄8″plugs ......................................... 2
i3-conductor 1⁄4″plugs ......................................... 3
oACC 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
q
!0 !1 !2
!3 !4 !5 !56
yui
o
ewr
t
!2
!3
(FH M4×12 mm)
(PH M4×8 mm) PH: Pan head
FH: Flat head

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 flash drive connection .............................................................. 2-4
■Required connections ....................................................................... 2-5
DFront panel ................................................................................... 2-5
DRear panel .................................................................................... 2-5
■Advanced connections ..................................................................... 2-6
DFront panel ................................................................................... 2-6
DRear panel—1 .............................................................................. 2-6
DRear panel—2 .............................................................................. 2-7
■Linear amplifier connections ............................................................. 2-8
DConnecting the IC-PW1/EURO .................................................... 2-8
DConnecting a non-Icom linear amplifier ........................................ 2-8
■Transverter jack information ............................................................. 2-9
■FSK and AFSK connections ............................................................. 2-9
DWhen using the ACC socket or the microphone connector .......... 2-9
■Microphones (options) .................................................................... 2-10
DSM-50 ......................................................................................... 2-10
DSM-30 ......................................................................................... 2-10
DHM-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
DUsing the band stacking registers ................................................ 3-4
■Frequency setting ............................................................................. 3-5
DTuning with the main dial .............................................................. 3-5
DDirect frequency entry with the keypad ........................................ 3-5
DQuick tuning step .......................................................................... 3-6
DSelecting “kHz” step ..................................................................... 3-6
D1⁄4tuning step function ................................................................. 3-6
DSelecting 1 Hz step ...................................................................... 3-7
DAuto 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
DMulti-function digital meter ......................................................... 3-10
DMeter type selection ................................................................... 3-11
■Voicesynthesizeroperation............................................................ 3-11
■Basic transmit operation ................................................................. 3-12
DTransmitting ................................................................................ 3-12
DMicrophone gain adjustment ...................................................... 3-12
DDrive gain adjustment ................................................................. 3-13
■Band edge warning beep ............................................................... 3-13
DProgramming the user band edge .............................................. 3-14
Section 4 RECEIVE AND TRANSMIT
■Operating SSB .................................................................................. 4-2
DConvenient functions for receive ...................................................4-2
DConvenient functions for transmit ..................................................4-3
DAbout 5 MHz band operation (USA version only) .........................4-3
■Operating CW ................................................................................... 4-4
DConvenient functions for receive ...................................................4-4
DConvenient functions for transmit ..................................................4-5
DAbout CW reverse mode ...............................................................4-5
DAbout CW pitch control .................................................................4-5
DCW side tone function ...................................................................4-5
DAPF (Audio Peak Filter) operation .................................................4-6
■Electronic keyer functions ................................................................. 4-7
DMemory keyer screen ....................................................................4-8
DEditing a memory keyer .................................................................4-9
DContest number set mode ...........................................................4-10
DKeyer set mode ...........................................................................4-11
■Operating RTTY (FSK) ................................................................... 4-13
DConvenient functions for receive .................................................4-14
DAbout RTTY reverse mode ..........................................................4-14
DTwin peak filter .............................................................................4-14
DFunctions for the RTTY decoder display .....................................4-15
DSetting the decoder threshold level .............................................4-15
DRTTY memory transmission ........................................................4-16
DAutomatic transmission/reception setting ....................................4-16
DEditing RTTY memory .................................................................4-17
DRTTY decode set mode ..............................................................4-18
DData saving ..................................................................................4-20
■Operating PSK ................................................................................ 4-21
DConvenient functions for receive .................................................4-22
DAbout BPSK and QPSK modes ..................................................4-22
DFunctions for the PSK decoder display .......................................4-23
DSetting the decoder threshold level .............................................4-23
DPSK memory transmission ..........................................................4-24
DAutomatic transmission/reception setting ....................................4-24
DEditing PSK memory ...................................................................4-25
DPSK decode set mode ................................................................4-26
DData saving ..................................................................................4-28
■Operating AM ................................................................................. 4-29
DConvenient functions for receive .................................................4-29
DConvenient functions for transmit ................................................4-30
■Operating FM .................................................................................. 4-31
DConvenient functions for receive .................................................4-31
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TABLE OF CONTENTS

vi
DConvenient functions for transmit ................................................4-31
■Repeater operation ......................................................................... 4-32
DRepeater 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
DCenter mode ................................................................................. 5-2
DFixedmode................................................................................... 5-3
DMini scope screen display ............................................................ 5-4
DScope set mode ........................................................................... 5-4
DUSB mouse operation .................................................................. 5-9
■Preamplifier .................................................................................... 5-10
■Attenuator ....................................................................................... 5-10
■RIT function .................................................................................... 5-11
DRIT monitor function ....................................................................5-11
■AGC function .................................................................................. 5-12
DSelecting the preset value ...........................................................5-12
DAdjusting the AGC time constant ................................................5-12
DSetting the AGC time constant preset value ...............................5-12
■Twin PBT operation ........................................................................ 5-13
■IF filter selection ............................................................................. 5-14
DIF filter selection ......................................................................... 5-14
DFilterpassbandwidthsetting(exceptFMmode) ....................... 5-14
DRoofing filter selection ................................................................ 5-15
DDSP filter shape ......................................................................... 5-15
DFilter shape set mode ................................................................. 5-15
■Noise blanker .................................................................................. 5-16
DNB 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
DAudio 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
DSemi break-in operation ............................................................... 6-3
DFull 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
DSplit lock function ......................................................................... 6-7
TABLE OF CONTENTS

Section 7 VOICE RECORDER FUNCTIONS
■Recording a QSO audio ……………………………………………… 7-2
DTo start or stop recording …………………………………………… 7-2
■Recording quick operation …………………………………………… 7-2
DTo start or stop recording …………………………………………… 7-2
■Playing back recorded audio (QSO) ………………………………… 7-3
DBasic playing ………………………………………………………… 7-3
DOperating 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
DOne-touch recording ………………………………………………… 7-7
■Playing back the recorded audio (Short REC) ……………………… 7-7
DBasic playing ………………………………………………………… 7-7
DOne-touch playing …………………………………………………… 7-8
■Protect the recorded contents ………………………………………… 7-8
■Erasing the recorded contents………………………………………… 7-8
■Recording a message for transmit …………………………………… 7-9
DRecording …………………………………………………………… 7-9
DConfirming a message for transmit………………………………… 7-9
■Programming a memory name ……………………………………… 7-10
■Sending a recorded message ………………………………………… 7-11
DSingle TX……………………………………………………………… 7-11
DRepeat TX …………………………………………………………… 7-11
DTransmit level setting ……………………………………………… 7-12
■Voicesetmode ………………………………………………………… 7-12
■Saving a voice memory into the memory device …………………… 7-15
DSaving the received audio memory ……………………………… 7-15
DSaving the TX memory ……………………………………………… 7-15
Section 8 MEMORY OPERATION
■Memory channels ............................................................................. 8-2
■Memory channel selection ................................................................ 8-2
DUsing the ∫/ √keys ......................................................... 8-2
DUsing the keypad .......................................................................... 8-2
■Memory channel programming ......................................................... 8-3
DProgramminginVFOmode.......................................................... 8-3
DProgramming in memory mode .................................................... 8-3
■Frequency transfers .......................................................................... 8-4
DTransferringinVFOmode............................................................. 8-4
DTransferring in memory mode ....................................................... 8-4
■Memory list screen ........................................................................... 8-5
DSelecting a memory channel using the memory list screen ........ 8-5
DConfirming programmed memory channels ................................. 8-5
■Memory names ................................................................................. 8-6
DEditing (programming) memory names ........................................ 8-6
■Memory clearing ............................................................................... 8-6
■Memo pads........................................................................................ 8-7
DWriting frequencies and operating modes into memo pads ......... 8-7
DCalling 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
DSetting in scan screen .................................................................. 9-7
DSetting in memory list screen ....................................................... 9-7
DErasing 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
DAntenna type selection ............................................................... 10-3
DTemporary memory .................................................................... 10-4
DAntenna selection mode ............................................................. 10-4
DReceive antenna I/O setting ....................................................... 10-5
■Antenna tuner operation ................................................................. 10-6
DTuner operation ........................................................................... 10-6
DIf 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
DSet mode operation .................................................................... 12-2
DScreen 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
DUSB-Memory set screen arrangement ..................................... 12-23
DSave option set mode ............................................................... 12-24
DLoad 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
DTransceiver power ....................................................................... 13-2
DTransmit and receive .................................................................. 13-2
DScanning ..................................................................................... 13-3
DDisplay ........................................................................................ 13-3
DFormat 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
DData format ................................................................................. 14-2
DCommand table .......................................................................... 14-3
DData contents description.......................................................... 14-10
Section 15 SPECIFICATIONS AND OPTIONS
■Specifications ................................................................................. 15-2
DGeneral ....................................................................................... 15-2
DTransmitter .................................................................................. 15-2
DReceiver ...................................................................................... 15-3
DAntenna tuner ............................................................................. 15-3
■Options ........................................................................................... 15-4
Section 16 UPDATING THE FIRMWARE
■General ........................................................................................... 16-2
DFirmware confirmation ................................................................ 16-2
■Caution ........................................................................................... 16-2
■Preparation ..................................................................................... 16-3
DFirmware and firm utility ............................................................. 16-3
DFile downloading ....................................................................... 16-3
■Firmware update— USB flash drive ............................................... 16-4
■Firmware update— PC ................................................................... 16-6
DConnections ................................................................................ 16-6
DIP address setting ....................................................................... 16-7
DUpdating 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
qPOWER 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.
wTRANSMIT SWITCH TRANSMIT
Selects transmit or receive.
 •The[TX]indicatorlightsredwhiletransmittingandthe
[RX] indicator lights green when the squelch is open.
eANTENNA 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.
rTIMER 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.
tHEADPHONE JACK [PHONES]
Accepts standard stereo headphones.
 •Outputpower:5mWwithan8Ωload.
 •Whenheadphonesareconnected,theinternalspeaker
orconnectedexternalspeakerdoesnotfunction.
yELECTRONIC 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
TS
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 NR
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
AGC SQL NR NB
q
w
e
r
t
y
u
!5
io!0 !1 !2 !3 !4
!6
■Front panel

1-3
uMICROPHONE CONNECTOR [MIC]
Accepts an optional microphone.
 •Seepage15-4forappropriatemicrophones.
 •Seepage2-10formicrophoneconnectorinformation.
iMIC 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.
oVOX 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
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. 5-18)
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
TS
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 NR
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
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)
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.
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 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,Vdor Idmetering 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
1
METER
Po
ANT
1
1PANEL DESCRIPTION
POWER
TUNER
TIMER
VOX
SSB CW RTTY/PSK AM/FM DATA AUTO
TUNE
LOCK
TS
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
NR
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
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)
  •
1⁄4function sets dial rotation to 1⁄4of
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 1.8 110 4
GENE •1.8 128 914 5F-INP
ENT .
VSC
OFF
TONE
OFF
1 / 4
ON
COMP
OFF
WIDE
AGC
MID
1
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
TS
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 NR
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
i7700
HF/50MHz TRANSCEIVER
AGC SQL NR 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 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.
1
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
TS
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
NR
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
i7700
HF/50MHz TRANSCEIVER
AGC SQL NR NB
&1 &0 ^9
^1
^2
^3
^4
^5
^6
^7
^8
■Front panel (continued)