ICOM orporated 259000 Amateur HF Scanning Transceiver User Manual IC 7800 Eng

ICOM Incorporated Amateur HF Scanning Transceiver IC 7800 Eng

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Users Manual Part 1 HTML Version

Users Manual Part 1

THE TRANSCEIVER

i7800

Instruction Manual

A-6328H-1EX

Printed in Japan

FOREWORD

Congratulations! You are the owner of the world’s most advanced amateur

HF/50 MHz transceiver— IC-7800. The IC-7800 is designed and built with

Icom’s superior technology and craftsmanship. With proper care, this prod-

uct should provide you with years of trouble-free operation.

We would like to take a couple of moments of your time to thank you for

making your IC-7800 your radio of choice, and hope you agree with Icom’s

philosophy of “technology first.” Many hours of research and development

went into the design of your IC-7800.

FEATURES

❍Ultimate receiver performance +40 dBm of IP3 characteris-

tics (HF bands only)

❍Built-in Baudot RTTY and PSK31 modulator/demodulator

and direct PC keyboard connection capability for RTTY

and PSK31 operation without a PC

❍Independent receiver circuits for main and sub bands pro-

vide perfect Dualwatch operation

❍Up-graded real-time spectrum scope— center frequency

and fix frequency modes, and mini-scope indications

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-7800.

EXPLICIT DEFINITIONS

TRADEMARKS

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

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

France, Spain, Russia and/or other countries.

WORD DEFINITION

RWARNING Personal injury, fire hazard or electric shock may

occur.

CAUTION Equipment damage may occur.

NOTE If disregarded, inconvenience only. No risk or person-

al injury, fire or electric shock.

PRECAUTIONS

RWARNING HIGH VOLTAGE! NEVER at-

tach 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 continuous

high volume operation. If you experience a ringing in

your ears, reduce the volume or discontinue use.

RCAUTION! NEVER change the internal set-

tings of the transceiver. This result in reduced trans-

ceiver performance and/or damage to the transceiver.

RCAUTION! NEVER touch the transceiver top

cover when transmitting continuously for long periods.

It will become hot.

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 problems

caused by unauthorized internal adjustment.

RCAUTION! The transceiver weighs approx. 25 kg

(55 lb). 2 peoples should be present to carry, lift up or

turn over the transceiver, etc.

RCAUTION! The socket-outlet must be near the

transceiver and must be easily accessible.

RACHTUNG! Die Steckdose muß nabe bei

diesem Gerät angebracht und zugänglich sein.

RNEVER let metal, wire or other objects touch any

internal part or connectors on the rear panel of the

transceiver. This may result in an electric shock.

RNEVER let objects impede the operation of the

cooling fan on the rear panel.

RNEVER expose the transceiver to rain, snow or

any liquids.

RNEVER installing the transceiver in a place with-

out adequate ventilation. Heat dissipation may be af-

fected, and the transceiver may be damaged.

RNEVER operate or touch the transceiver with wet

hands. This may result in an electric shock or damage

the transceiver.

DO NOT

the use of chemical agents such as benzine

or alcohol when cleaning, as they can damage the

transceiver’s surfaces.

DO NOT push the PTT when not actually desiring to

transmit.

AVOID using or placing the transceiver in areas with

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

(+122°F).

AVOID placing the transceiver in excessively dusty en-

vironments or in direct sunlight.

AVOID placing the transceiver against walls or putting

anything on top of the transceiver. This will obstruct

heat dissipation.

Place unit in a secure place to avoid inadvertent use

by children.

BE CAREFUL! The top panel will become hot when

operating the transceiver continuously for long periods.

BE CAREFUL! If a linear amplifier is connected, set

the transceiver’s RF output power to less than the lin-

ear amplifier’s maximum input level, otherwise, the lin-

ear amplifier will be damaged.

Use Icom microphones only (supplied or optional).

Other manufacturer’s microphones have different pin

assignments, and connection to the IC-7800 may dam-

age the transceiver.

The LCD display may have cosmetic imperfections that

appear as small or dark 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 mag-

netic navigation compass to prevent erroneous indica-

tions.

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 regulations.

qAC power cable* ………………………………… 1

wAntenna jumper cables …………………………… 2

eRack mounting handles ……………………… 1 pair

rScrews for rack mounting handles ………… 1 set

tCF (Compact Flash) memory card ……………… 1

yStands ………………………………………… 1 pair

uSpare fuse (FGB 2 A) …………………………… 1

iRCA plugs ………………………………………… 2

oDC power plug …………………………………… 1

!0 2-conductor 1⁄8″plugs …………………………… 3

!1 3-conductor 1⁄8″plugs …………………………… 2

!2 3-conductor 1⁄4″plugs …………………………… 3

!3 ACC plugs (7-pin) ………………………………… 2

!4 ACC plugs (8-pin) ………………………………… 2

*May differ from that shown according to version

iii

SUPPLIED ACCESSORIES

Section 1 PANEL DESCRIPTION

■Front panel ……………………………………………………………… 1-2

■Rear panel ……………………………………………………………… 1-12

■LCD display …………………………………………………………… 1-14

■Screen menu arrangement …………………………………………… 1-15

Section 2 INSTALLATION AND CONNECTIONS

■Unpacking ……………………………………………………………… 2-2

■Antenna jumper cable connection …………………………………… 2-2

■Selecting a location …………………………………………………… 2-2

■Rack mounting handle attachment …………………………………… 2-2

■Grounding ……………………………………………………………… 2-3

■Antenna connection …………………………………………………… 2-3

■CF (Compact Flash) memory card …………………………………… 2-3

■Required connections ………………………………………………… 2-4

DFront panel …………………………………………………………… 2-4

DRear panel …………………………………………………………… 2-4

■Advanced connections ………………………………………………… 2-5

DFront panel …………………………………………………………… 2-5

DRear panel—1 ……………………………………………………… 2-5

TABLE OF CONTENTS

!0 !1 !2 !3 !4

yuio

DRear panel—2 ……………………………………………………… 2-6

■Linear amplifier connections …………………………………………… 2-7

DConnecting the IC-PW1 …………………………………………… 2-7

DConnecting a non-Icom linear amplifier …………………………… 2-7

■Transverter jack information …………………………………………… 2-8

■FSK and AFSK (SSTV) connections ………………………………… 2-8

■Microphone connector information …………………………………… 2-9

■Microphones (options) ………………………………………………… 2-9

DSM-20 ………………………………………………………………… 2-9

DHM-36 ………………………………………………………………… 2-9

■Accessory connector information …………………………………… 2-10

Section 3 BASIC OPERATIONS

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

■Initial settings …………………………………………………………… 3-2

■Main/Sub band selection ……………………………………………… 3-3

■Selecting VFO/memory mode ………………………………………… 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

DBand edge warning beep …………………………………………… 3-7

■Operating mode selection ……………………………………………… 3-8

■Volume setting ………………………………………………………… 3-9

■RF gain adjustment …………………………………………………… 3-9

■Squelch level adjustment ……………………………………………… 3-9

■Meter indication selection …………………………………………… 3-10

DMulti-function digital meter ………………………………………… 3-10

DMeter type selection ……………………………………………… 3-11

■Basic transmit operation ……………………………………………… 3-12

DTransmitting ………………………………………………………… 3-12

DMicrophone gain adjustment ……………………………………… 3-12

DDrive gain adjustment ……………………………………………… 3-13

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

DAbout 137 kHz band operation (Europe, UK, Italy, Spain, France

versions only) …………………………………………………………4-6

■Electronic keyer functions ……………………………………………… 4-7

TABLE OF CONTENTS

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 indication ………………………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 mode ……………………………………4-22

DFunctions for the PSK decoder indication ………………………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

DConvenient functions for transmit …………………………………4-31

■Repeater operation …………………………………………………… 4-32

DRepeater tone frequency setting …………………………………4-32

■Tone squelch operation ……………………………………………… 4-33

■Data mode (AFSK) operation ………………………………………… 4-34

Section 5 FUNCTIONS FOR RECEIVE

■Spectrum scope screen ……………………………………………… 5-2

DCenter mode ………………………………………………………… 5-2

DFix mode ……………………………………………………………… 5-3

DMini scope screen indication ……………………………………… 5-4

DScope set mode ……………………………………………………… 5-4

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

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

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

DRIT monitor function …………………………………………………5-10

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

DSelecting the preset value …………………………………………5-11

DAdjusting the AGC time constant …………………………………5-11

DSetting the AGC time constant preset value ………………………5-11

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

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

DIF filter selection …………………………………………………… 5-13

DFilter passband width setting (except FM mode) ……………… 5-13

DRoofing filter selection ……………………………………………… 5-14

TABLE OF CONTENTS

DDSP filter shape …………………………………………………… 5-14

DFilter shape set mode ……………………………………………… 5-14

■Dualwatch operation ………………………………………………… 5-16

■Noise blanker ………………………………………………………… 5-17

DNB set mode ………………………………………………………… 5-17

■Noise reduction ………………………………………………………… 5-18

■Dial lock function ……………………………………………………… 5-18

■Notch function ………………………………………………………… 5-19

■Digital selector ………………………………………………………… 5-19

Section 6 FUNCTIONS FOR TRANSMIT

■VOX function …………………………………………………………… 6-2

DUsing the VOX function …………………………………………… 6-2

DAdjusting the VOX function ………………………………………… 6-2

DVOX 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

Section 7 VOICE RECORDER FUNCTIONS

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

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

DBasic recording ……………………………………………………… 7-3

DOne-touch recording ………………………………………………… 7-3

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

DBasic playing ………………………………………………………… 7-4

DOne-touch playing …………………………………………………… 7-4

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

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

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

DRecording …………………………………………………………… 7-6

DConfirming a message for transmit ………………………………… 7-6

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

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

DTransmit level setting ……………………………………………… 7-8

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

■Saving a voice memory into the CF card …………………………… 7-10

DSaving the received audio memory ……………………………… 7-10

DSaving the TX memory …………………………………………… 7-10

Section 8 MEMORY OPERATION

■Memory channels ……………………………………………………… 8-2

■Memory channel selection …………………………………………… 8-2

DUsing the [Y]/[Z] keys ……………………………………………… 8-2

DUsing the keypad …………………………………………………… 8-2

■Memory list screen ……………………………………………………… 8-3

DSelecting a memory channel using the memory list screen …… 8-3

DConfirming programmed memory channels ……………………… 8-3

TABLE OF CONTENTS

■Memory channel programming ……………………………………… 8-4

DProgramming in VFO mode ………………………………………… 8-4

DProgramming in memory mode …………………………………… 8-4

■Frequency transferring ………………………………………………… 8-5

DTransferring in VFO mode ………………………………………… 8-5

DTransferring in memory mode ……………………………………… 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

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/∂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

■Antenna tuner operation ……………………………………………… 10-5

DTuner operation …………………………………………………… 10-5

DIf the tuner cannot tune the antenna …………………………… 10-6

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 ………………………………………………………… 12-6

■Display set mode …………………………………………………… 12-11

■Miscellaneous (Others) set mode ………………………………… 12-13

■CF card set menu …………………………………………………… 12-21

DCF card set screen arrangement ……………………………… 12-21

DSave option set mode …………………………………………… 12-21

vii

TABLE OF CONTENTS

viii

DLoad option set mode …………………………………………… 12-22

■File saving …………………………………………………………… 12-23

■File loading …………………………………………………………… 12-24

■Changing the file name ……………………………………………… 12-25

■Deleting a file ………………………………………………………… 12-26

■Formatting the CF card ……………………………………………… 12-26

Section 13 MAINTENANCE

■Troubleshooting ……………………………………………………… 13-2

DTransceiver power ………………………………………………… 13-2

DTransmit and receive ……………………………………………… 13-2

DScanning …………………………………………………………… 13-3

DDisplay ……………………………………………………………… 13-3

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

■Voice synthesizer operation ………………………………………… 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

Section 14 CONTROL COMMAND

■Remote jack (CI-V) information ……………………………………… 14-2

DCI-V connection example ………………………………………… 14-2

DData format ………………………………………………………… 14-2

DCommand table …………………………………………………… 14-9

DTo send/read memory contents …………………………………… 14-9

DBand stacking register …………………………………………… 14-9

DCodes for memory keyer contents ……………………………… 14-9

DCodes for memory name, opening message

and clock 2 name contents ……………………………………… 14-9

DOffset frequency setting ………………………………………… 14-10

DRepeater tone/tone squelch frequency setting ………………… 14-10

DSSB transmission passband width setting …………………… 14-10

DColor setting ……………………………………………………… 14-10

DBandscope edge frequency setting …………………………… 14-10

DData mode with filter width setting ……………………………… 14-10

DAntenna memory setting ………………………………………… 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

TABLE OF CONTENTS

1-1

PANEL DESCRIPTION Section 1

■Front panel ……………………………………………………………… 1-2

■Rear panel ……………………………………………………………… 1-12

■LCD display …………………………………………………………… 1-14

■Screen menu arrangement …………………………………………… 1-15

1-2

■Front panel

qPOWER SWITCH [POWER] (p. 3-2)

➥Push to turn the transceiver power ON.

• The [POWER] indicator above this switch lights green

when powered ON.

➥Push for 1 sec. to turn the transceiver power

OFF.

• The [POWER] indicator lights orange even the trans-

ceiver is powered OFF when the internal power sup-

ply is switched ON.

wTRANSMIT SWITCH [TRANSMIT]

Selects transmitting or receiving.

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

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

eANTENNA TUNER SWITCH [TUNER] (p. 10-5)

➥Turn the internal antenna tuner ON and OFF (by-

pass) when pushed momentarily.

• The [TUNER] indicator above this switch lights green

when the tuner is turned ON, goes off when turned

OFF (bypassed).

➥Tunes the antenna manually when pushed for

1 sec.

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

ing.

• When the tuner cannot tune the antenna, the tuning

circuit is bypassed automatically after 20 sec.

rTIMER SWITCH [TIMER] (p. 11-4)

➥Turns the sleep or daily timer function ON and

OFF when pushed.

• The [TIMER] indicator above this switch lights green

when the timer is in use.

➥Enters timer set mode when pushed for 1 sec.

tHEADPHONE JACK [PHONES]

Accepts headphones.

• Output power: 50 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. 2-4)

Accepts a paddle to activate the internal electronic

keyer for CW operation.

• Selection between the internal electronic keyer, bug-key

and straight key operation can be made in keyer set

mode. (p. 4-12)

• A straight key jack is separately available on the rear

panel. See [KEY] on p. 1-13.

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

set mode. (p. 4-12)

• 4-channel memory keyer is available for your conve-

nience. (p. 4-8)

uMICROPHONE CONNECTOR [MIC]

Accepts an optional microphone.

• See p. 15-4 for appropriate microphones.

• See p. 2-9 for microphone connector information.

(dot)

(com)

(dash)

Turn the internal power supply ON in advance. The

internal power supply switch is located on the rear

panel. (p. 3-2)

1PANEL DESCRIPTION

io !0 !1 !2 !3

!4 !5 !6 !7 !8

1-3

iMIC GAIN CONTROL [MIC]

Adjusts microphone input gain.

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

be adjusted independently in set mode. (p. 12-4)

✔

How to set the microphone gain.

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

swings during normal voice transmission in SSB, AM or FM

mode.

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

Continuously varies the RF output power from min-

imum (5 W*) to maximum (200 W*).

*AM mode: 5 W to 50 W

!0 VOX/BREAK-IN SWITCH [VOX/BK-IN]

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

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

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

in, full break-in) and OFF during CW mode opera-

tion. (p. 6-3)

➥Push for 1 sec. to enter VOX set mode. (p. 6-2)

✔

What is the VOX function?

The VOX function (voice operated transmission) starts trans-

mission without pushing the transmit switch or PTT switch

when you speak into the microphone; then, automatically re-

turns to receive when you stop speaking.

✔

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

during keying.

!1 ELECTRONIC CW KEYER SPEED CONTROL

[KEY SPEED] (p. 4-4)

Adjusts the internal electronic CW keyer’s speed.

• 6 wpm (min.) to 60 wpm (max.) can be set.

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

Adjusts the transmit-to-receive switching delay time

for CW semi break-in operations.

!3 MONITOR SWITCH [MONI] (p. 6-4)

Monitors your transmitted IF signal.

• The CW sidetone functions regardless of [MONI] switch

setting in CW mode.

• The [MONI] indicator above this switch lights green

while the function is activated.

!4 MEMORY CARD SLOT [CF CARD] (p. 2-3)

Insert the supplied CF (Compact Flash) memory

card for both reading/storing a variety of trans-

ceiver’s information or data.

• The indicator beside the slot lights or blinks when the

transceiver accessing to the memory card for reading or

writing data.

• Push-in the eject button to remove the memory card.

!5 MONITOR GAIN CONTROL [MONI GAIN] (p. 6-4)

Adjusts the transmit IF signal monitor level.

!6 COMPRESSION LEVEL CONTROL [COMP]

(p. 6-5)

Adjusts the speech compression level in SSB.

!7 DRIVE GAIN CONTROL [DRIVE] (p. 3-13)

Adjusts the amplifying gain level at the drive stage.

Activated in all modes (except SSB with [COMP] OFF).

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

Adjusts the transmit/receive switching threshold

level for VOX operation.

Low

sensitivity

High

sensitivity

Push

Decreases

Increases

Push

Monitor gain

decreases

Monitor gain

increases

Push

Monitor gain

decreases

Monitor gain

increases

Push

Long delay for

slow speed keying

Short delay for

high speed keying

Max.

60 wpm

Min.

6 wpm

Increases

Decreases

Recommended level for

an Icom microphone

Decreases Increases

PANEL DESCRIPTION

1-4

■Front panel (continued)

!9 AGC CONTROL [AGC] (for MAIN band; p. 5-11)

@0 AGC CONTROL [AGC] (for SUB band; p. 5-11)

Adjusts the AGC circuit time constant.

• To use the set value, push appropriate band’s [AGC VR]

([AGC VR] indicator lights).

@1 AGC VOLUME SWITCH [AGC VR]

(for MAIN band; p. 5-11)

@2 AGC VOLUME SWITCH [AGC VR]

(for SUB band; p. 5-11)

➥Push to toggle [AGC] control usage ON and OFF.

• The set level with [AGC] control is used for the oper-

ation when switched ON.

• The [AGC VR] indicator above this switch lights

green when the control setting is in use.

➥Turns the AGC function OFF when pushed for

1 sec.

@3 AF CONTROL [AF] (inner control; for SUB band)

@4 AF CONTROL [AF] (inner control; for MAIN band)

Varies the audio output level from the speaker.

@5 RF GAIN CONTROL [RF] (outer control; for MAIN

band; p. 3-9)

@6 RF GAIN CONTROL [RF] (outer control; for SUB

band; p. 3-9)

Adjusts the RF gain level.

While rotating the RF gain control, noise may be

heard. This comes from the DSP unit and does

not indicate an equipment malfunction.

@7 SQUELCH CONTROL [SQL] (outer control; for

MAIN band; p. 3-9)

@8 SQUELCH CONTROL [SQL] (outer control; for

SUB band; p. 3-9)

Adjusts the squelch threshold level. The squelch re-

moves noise output from the speaker (closed con-

dition) when no signal is received.

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

available for other modes.

• 11 to 12 o’clock position is recommended for any set-

ting of the [SQL] control.

Deep

S-meter

squelch

Noise squelch

Squelch

is open.

Squelch

threshold

Shallow

Sensitivity

increases

Sensitivity

decreases

Audio output

increases

Audio output

decreases

Slow

Fast

1PANEL DESCRIPTION

@7 @8

#0 #1@9

#3 #4

1-5

@9 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.

➥Selects the antenna connector from

ANT1, ANT2, ANT3 and ANT4 when

pushed. (p. 10-2)

➥Displays antenna selection memory

when pushed for 1 sec.

• When the receive antenna is activated, the

antenna which is connected to the [ANT4] is

used for receive only.

When a transverter is in use, this [ANT]

does not function and ‘XVERT’ appears.

➥Selects RF power (Po), SWR, ALC,

COMP, VDor IDmetering during transmit.

(p. 3-10)

➥Switches the multi-function digital meter

ON and OFF when pushed for 1 sec.

(p. 3-10)

➥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.

✔

What is the preamp?

The preamp amplifies received signals in the front end cir-

cuit to improve the S/N ratio and sensitivity. Select “P. AMP1”

or “P. AMP2” when receiving weak signals.

➥Selects 6 dB, 12 dB or 18 dB attenuator

when pushed. (p. 5-9)

➥Selects 3 dB, 6 dB, 9 dB, 12 dB, 18 dB,

or 21 dB attenuator when pushed for

1 sec. (p. 5-9)

✔

What is the attenuator?

The attenuator prevents a desired signal from distorting

when very strong signals are near the desired frequency, or

when very strong electric fields, such as from a broadcast-

ing station, are near your location.

➥Activates or selects fast, middle or slow

AGC time constant when pushed. (p. 5-

11)

• “FAST” is only available for FM mode.

➥Enters the AGC set mode when pushed

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. While

“OFF” is selected, 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 is varied

by fading, etc. Select “FAST” for tuning and select “MID” or

“SLOW” depending on the receiving condition.

➥Turns the speech compressor ON and

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

➥Switches the narrow, middle or wide

transmit filter when pushed for 1 sec.

✔

What is the speech compressor?

The speech compressor compresses the transmitter audio

input to increase the average audio output level. Therefore, talk

power is increased. This function is effective for long distance

communication or when propagation conditions are poor.

➥Turns the 1⁄4function ON and OFF in

SSB data, CW, RTTY and PSK modes.

(p. 3-6)

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

for fine tuning.

➥Switches the tone encoder, tone squelch

function and no tone operation when

pushed in FM mode. (pgs. 4-32, 4-33)

➥Enters the tone set mode when pushed

for 1 sec. in FM mode. (pgs. 4-32, 4-33)

➥Switches the voice squelch control func-

tion ON and OFF. (p. 9-3)

#0 TRANSMIT INDICATOR [TX] (for MAIN band)

#1 TRANSMIT INDICATOR [TX] (for SUB band)

Lights red while transmitting.

• SUB band’s [TX] indicator lights only when the split op-

eration.

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

Adjusts the VOX deactivate level to prevent un-

wanted VOX control from the speaker audio.

#3 LCD CONTRAST CONTROL [CONTRAST]

Adjusts the LCD contrast.

#4 LCD BRIGHTNESS CONTROL [BRIGHT]

Adjusts the LCD brightness.

Dark

Bright

Push

Low

contrast

High

contrast

Push

Decreases

cut-off level

Increases

cut-off level

Push

PANEL DESCRIPTION

1-6

■Front panel (continued)

#5 NOISE REDUCTION SWITCH [NR] (for MAIN

band; p. 5-18)

#6 NOISE REDUCTION SWITCH [NR] (for SUB band;

p. 5-18)

Push to switches the noise reduction ON and OFF.

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

the function is activated.

#7 NOISE REDUCTION LEVEL CONTROL [NR]

(inner control; for SUB band; p. 5-18)

#8 NOISE REDUCTION LEVEL CONTROL [NR]

(inner control; for MAIN band; p. 5-18)

Adjusts the noise reduction level when the noise re-

duction is in use. Set for maximum readability.

• To activate this control, push the appropriate band’s

[NR] in advance.

#9 NOISE BLANKER CONTROL [NB] (outer control;

for MAIN band; p. 5-17)

$0 NOISE BLANKER CONTROL [NB] (outer control;

for SUB band; p. 5-17)

Adjust the noise blanker threshold level.

• To activate this control, push appropriate band’s [NB]

switch in advance.

$1 NOISE BLANKER SWITCH [NB] (for MAIN band;

p. 5-17)

$2 NOISE BLANKER SWITCH [NB] (for SUB band;

p. 5-17)

➥Switches the noise blanker ON and OFF when

pushed. The noise blanker reduces pulse-type

noise such as that generated by automobile igni-

tion systems. This function cannot be used for

FM, or non-pulse-type noise.

• The [NB] indicator above this switch lights green

while the function is activated.

➥Enters blank-width set mode when pushed for

1 sec.

$3 RECEIVE INDICATOR [RX] (for MAIN band)

$4 RECEIVE INDICATOR [RX] (for SUB band)

Lights green while receiving a signal and when the

squelch is open.

LOCK INDICATOR [LOCK] (for MAIN band; p. 5-18)

$6 LOCK INDICATOR [LOCK] (for SUB band; p. 5-18)

Lights when the dial lock function is activated.

$7 SPLIT OPERATION INDICATOR [SPLIT]

Lights during split frequency operation.

$8 LCD FUNCTION DISPLAY (p. 1-14)

Shows the operating frequency, function switch

menus, spectrum scope screen, memory channel

screen, set mode settings, etc.

Deep

Shallow

Increases

Decreases

1PANEL DESCRIPTION

$1 $2

$5$3 $6 $9$4$7 $8

%0 %1 %3 %4 %6%2 %5

1-7

$9 MEMORY UP/DOWN SWITCHES [Y]/[Z](p. 8-2)

Push to select the memory channel number for the

selected readout.

• Memory channels can be selected both in VFO and

memory modes.

%0 LCD FUNCTION SWITCHES [F-1]–[F-7]

Push to select the function indicated in the LCD dis-

play above these switches.

• Functions vary depending on the operating condition.

%1 MODE SWITCHES

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

• Announces the selected mode. (p. 12-16)

➥Selects USB and LSB modes alternately.

➥Selects CW and CW-R (CW reverse)

modes alternately.

➥Switches RTTY and PSK mode when

pushed.

➥Switches RTTY and RTTY-R (RTTY re-

verse) mode when pushed for 1 sec. in

RTTY mode.

➥Switches PSK and PSK-R (PSK reverse)

mode when pushed 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, respectively.

➥Switches D1, D2 and D3 when pushed

for 1 sec.

%2 MINI SPECTRUM SCOPE SWITCH [M.SCOPE]

(p. 5-4)

Turns the mini spectrum scope screen indication

ON and OFF.

• The mini spectrum scope screen can be indicated with

another screen, such as memory, set mode screen, si-

multaneously.

%3 VOICE MEMORY RECORD SWITCH [REC]

(p. 7-3)

➥Records the receiving signal contents for the pre-

set time period when pushed.

• After the preset time has passed, stops recording au-

tomatically.

➥Records the receiving signal contents until can-

celling the record when pushed for 1 sec.

• Push this switch momentarily to stops recording.

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

%4 VOICE MEMORY PLAY BACK SWITCH [PLAY]

(p. 7-4)

➥Play back the previously recorded audio for the

preset time period when pushed.

➥Play back all of the previously recorded audio

when pushed for 1 sec.

%5 EXIT/SET SWITCH [EXIT/SET]

➥Push to exits or returns to the previous screen in-

dication during spectrum scope, memory, scan or

set mode screen indication, etc.

➥Displays set mode menu screen when pushed

for 1 sec.

%6 TRANSMIT FREQUENCY CHECK SWITCH [XFC]

(p. 6-6)

Monitors the transmit frequency (including ∂TX fre-

quency setting) when pushed and held during the

split frequency operation.

• While pushing this switch, the transmit frequency can be

changed with the main dial, keypad, memo pad or

[Y]/[Z] switches.

• When the split lock function is turned ON, pushing [XFC]

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

PANEL DESCRIPTION

1-8

■Front panel (continued)

%7 MEMO PAD-WRITE SWITCH [MP-W] (p. 8-7)

Programs the selected 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 for your convenience. (p. 12-16)

%8 VFO/MEMORY SWITCH [V/M]

➥Switches the selected readout operating mode

between the VFO mode and memory mode

when pushed. (pgs. 3-3, 8-2)

➥Transfers the memory contents to VFO when

pushed for 1 sec. (p. 5-5)

%9 KEYPAD

➥Pushing a key selects the operating band.

• [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 keyed fre-

quency or memory channel. Pushing [F-INP•ENT]

or [Y/[Z] is necessary at the end. (pgs. 3-5, 8-2)

• e.g. to enter 14.195 MHz, push [F-INP] [1.8•1] [10•4]

[GENE •] [1.8•1] [28•9] [14•5] [F-INP•ENT].

^0 MEMORY WRITE SWITCH [MW] (p. 8-4)

Stores the selected readout frequency and operat-

ing mode into the displayed memory channel when

pushed for 1 sec.

• This function is available both in VFO and memory

modes.

^1 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 pro-

grammed 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 for your convenience. (p. 12-16)

FILTER SWITCH [FILTER] (for MAIN band; p. 5-13)

^3 FILTER SWITCH [FILTER] (for SUB band; p. 5-13)

➥Selects one of 3 IF filter settings.

➥Enters the filter set screen when pushed for

1 sec.

^4 AUDIO PEAK FILTER/TWIN PEAK FILTER

SWITCH [APF/TPF] (for MAIN band)

^5 AUDIO PEAK FILTER/TWIN PEAK FILTER

SWITCH [APF/TPF] (for SUB band)

➥Push to turn the audio peak filter ON and OFF

during CW mode operation. (p. 4-6)

➥Push to turn the twin peak filter ON and OFF dur-

ing RTTY mode operation. (p. 4-14)

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

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

➥During CW mode operation, push for 1 sec. to

select the APF passband width from 80, 160 and

320 Hz. (p. 4-6)

TPF

APF

1PANEL DESCRIPTION

%7 %8 ^0 ^1%9

&0 &8&1 &5&4&2 &6 &3 &7&9

^2 ^3

1-9

^6 NOTCH SWITCH [NOTCH] (for SUB band; p. 5-19)

NOTCH SWITCH [NOTCH] (for MAIN band; p. 5-19)

➥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 auto notch is in use.

• “ ” appears when manual notch is in use.

➥Switches the manual notch characteristics from

wide, middle and narrow when pushed for 1 sec.

✔

What is the notch function?

The notch function eliminates unwanted CW or AM carrier

tones while preserving the desired signal’s audio response.

The filtering frequency is adjusted to effectively eliminate un-

wanted tones via the DSP circuit.

^8 DUALWATCH SWITCH [DUALWATCH] (p. 5-16)

➥Turns the dualwatch function ON and OFF when

pushed.

➥Turns the dualwatch function ON and equalizes

the main/sub readout frequency to the sub/main

readout when pushed for 1 sec. (Quick dualwatch

function)

• The quick dualwatch function can be turned OFF

using set mode. (p. 12-13)

^9 SPLIT SWITCH [SPLIT] (p. 6-6)

➥Turns the split function ON and OFF when

pushed.

➥Turns the split function ON, equalizes the sub

readout frequency to the main readout and sets

the sub readout for frequency input when pushed

for 1 sec. in non-FM modes. (Quick split function)

• The offset frequency is shifted from the main readout

frequency in FM mode. (p. 12-14)

• The quick split function can be turned OFF using set

mode. (p. 12-14)

➥Turns the split function ON and shifts the sub

readout frequency after inputting an offset.

&0 MAIN BAND ACCESS SWITCH [MAIN]

Selects access to the main readout.

• The main readout frequency is clearly displayed. The

sub readout functions only during split operation or du-

alwatch.

&1 MAIN/SUB EQUALIZING SWITCH [M=S]

Equalizes the sub readout frequency to the main

readout frequency when pushed for 1 sec.

&2 AUTOMATIC TUNING SWITCH [AUTO TUNE]

(for MAIN band)

&3 AUTOMATIC TUNING SWITCH [AUTO TUNE]

(for SUB band)

Turns the automatic tuning function ON and OFF in

CW and AM modes.

&4 MAIN DIAL

Changes the displayed frequency (main band), se-

lects set mode setting, etc.

&5 MAIN/SUB CHANGE SWITCH [CHANGE]

Switches the frequency and selected memory

channel between main and sub readouts when

pushed.

• Switches between transmit frequency and receive fre-

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

&6 LOCK SWITCH [LOCK] (for MAIN band; p. 5-18)

&7 LOCK SWITCH [LOCK] (for SUB band; p. 5-18)

Push to switch the dial lock function ON and OFF.

&8 SUB BAND ACCESS SWITCH [SUB]

Selects access to the sub readout.

• The sub readout frequency is clearly displayed. The

main readout functions only during split operation or du-

alwatch.

&9 SUB DIAL

Changes the displayed frequency in sub band.

IMPORTANT!

When receiving a weak signal, or receiving a sig-

nal with interference, the automatic tuning func-

tion may not be tuned, or tuned into an undesired

signal.

PANEL DESCRIPTION

1-10

■Front panel (continued)

*0 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

while the RIT and/or ∂TX functions are ON.

• Rotate the control clockwise to increase the frequency,

or rotate the control counterclockwise to decrease the

frequency.

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

(or ±9.99 kHz in 10 Hz steps).

*1 PASSBAND TUNING CONTROLS [TWIN PBT]

(for MAIN band; p. 5-12)

*2 PASSBAND TUNING CONTROLS [TWIN PBT]

(for SUB band; p. 5-12)

Adjust the receiver’s “passband width” of the DSP

filter.

• Passband width and shift frequency are displayed in the

multi-function display.

• Push [PBT CLEAR] for 1 sec. to clear the settings when

not in use.

• Variable range is set to half of the IF filter passband

width. 25 Hz steps and 50 Hz steps are available.

✔

What is the PBT control?

General PBT function electronically narrows the IF passband

width to reject interference. This transceiver uses the DSP

circuit for the PBT function.

*3 PBT CLEAR SWITCH [PBT CLEAR]

(for MAIN band; p. 5-12)

*4 PBT CLEAR SWITCH [PBT CLEAR]

(for SUB band; p. 5-12)

Clears the PBT settings when pushed for 1 sec.

• The [PBT CLEAR] indicator above this switch lights

when PBT is in use.

PBT1

PBT2

Low cutHigh cut Center

–+

Frequency

increases

Frequency

decreases

1PANEL DESCRIPTION

(5 (6 (7 (8

*3*1 *2*4

1-11

*5 DIGITAL RF SELECTOR CONTROL [DIGI-SEL]

(for MAIN band; p. 5-19)

*6 DIGITAL RF SELECTOR CONTROL [DIGI-SEL]

(for SUB band; p. 5-19)

Adjusts the digital RF selector center frequency.

• The control can be used as the audio peak filter adjust-

ment (p. 12-17)

*7 DIGITAL RF SELECTOR SWITCH [DIGI-SEL]

(for MAIN band; p. 5-19)

*8 DIGITAL RF SELECTOR SWITCH [DIGI-SEL]

(for SUB band; p. 5-19)

Turns the digital RF selector ON and OFF.

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

is in use.

*9 MANUAL NOTCH FILTER CONTROL [NOTCH]

(for SUB band; outer control; p. 5-19)

(0 MANUAL NOTCH FILTER CONTROL [NOTCH]

(for MAIN band; outer control; p. 5-19)

Varies the peak frequency of the manual notch fil-

ter to pick out a receive signal from interference

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

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

Shifts the received CW audio pitch and monitored

CW audio pitch without changing the operating fre-

quency.

(2 RIT SWITCH [RIT] (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 for 1 sec.

✔

What is the RIT function?

The RIT (Receiver Incremental Tuning) shifts the receive fre-

quency without shifting the transmit frequency.

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

quency or when you prefer to listen to slightly different-

sounding voice characteristics, etc.

(3 ∂TX SWITCH [∂TX] (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 for 1 sec.

✔

What is the

∂

TX function?

The ∂TX shifts the transmit frequency without shifting the re-

ceive frequency. This is useful for simple split frequency op-

eration in CW, etc.

(4 CLEAR SWITCH [CLEAR] (pgs. 5-10, 6-4)

Clears the RIT/∂TX shift frequency when pushed

for 1 sec. or when pushed momentarily, depending

on the quick RIT/∂TX clear function setting (p. 12-

17).

(5 QUICK TUNING SWITCH [TS] (for MAIN band)

(6 QUICK TUNING SWITCH [TS] (for SUB band)

➥Turns the quick tuning step ON and OFF. (p. 3-

• 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 avail-

able for each operating mode independently.

➥When the quick tuning step is OFF, push for

1 sec. to turn the 1 Hz tuning step ON and OFF.

(p. 3-7)

➥When the quick tuning step is ON, push for

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

(7 SPEECH SWITCH [SPEECH]

(for MAIN band; p. 13-3)

(8 SPEECH SWITCH [SPEECH]

(for SUB band; p. 13-3)

➥Push to announce the S-meter indication and the

selected readout frequency.

➥The selected operating mode is additionally an-

nounced when pushed for 1 sec.

High

frequency

Low

frequency

Higher

frequency

Lower

frequency

Higher

frequency

Lower

frequency

PANEL DESCRIPTION

1-12

■Rear panel

qANTENNA CONNECTOR 1 [ANT 1] (p. 2-4)

wANTENNA CONNECTOR 2 [ANT 2] (p. 2-4)

eANTENNA CONNECTOR 3 [ANT 3] (p. 2-4)

rANTENNA CONNECTOR 4 [ANT 4] (p. 2-4)

Accept a 50 Ωantenna with a PL-259 plug connec-

tor.

tGROUND TERMINAL [GND] (p. 2-3)

Connect this terminal to a ground to prevent electri-

cal shocks, TVI, BCI and other problems.

yCIRCUIT BREAKER

Cuts off the AC input when over current occurs.

uRECEIVE ANTENNA B OUT [RX ANT B– OUT]

iRECEIVE ANTENNA B IN [RX ANT B– IN]

Located between the transmit/receive switching cir-

cuit and receiver’s RF stage in SUB band (MAIN

band during split operation).

Connects an external unit, such as preamplifier, RF

filter, using BNC connector, if desired.

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

OUT] and [RX ANT B– IN] must be shorted with the

supplied coaxial cable. (p. 2-2)

oTRANSVERTER CONNECTOR [X-VERTER]

(p. 2-5)

External transverter input/output connector.

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

transverter function is in use. (pgs. 2-10, 4-6)

!0 RECEIVE ANTENNA A OUT [RX ANT A– OUT]

!1 RECEIVE ANTENNA A IN [RX ANT A– IN]

Located between the transmit/receive switching cir-

cuit and receiver’s RF stage in MAIN band (SUB

band during split operation).

Connects an external unit, such as preamplifier, RF

filter, using BNC connector, if desired.

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

OUT] and [RX ANT A– IN] must be shorted with the

supplied coaxial cable. (p. 2-2)

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

Turns the internal power supply ON and OFF.

!3 AC POWER SOCKET [AC] (p. 2-4)

Connects the supplied AC power cable to an AC

outlet.

EXTERNAL SPEAKER JACK MAIN [EXT-SP MAIN]

(p. 2-5)

!5 EXTERNAL SPEAKER JACK SUB [EXT-SP SUB]

(p. 2-5)

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

Receiver

Transmitter

[RX ANT A/B]

OUT

Transmit/Receive

switching circuit

1PANEL DESCRIPTION

MAINSUB

ACC 1

ACC 2

ACC 1

ACC 2

ALC

ADJ

ALC

RELAY

KEY

EXT

KEYPAD

METER

DC OUT

15V

MAX1A

REF I/O

10MHz

10dBm

INOUT

REMOTE

232C

KEY BOARD

EXT

DISPLAY

S/P DIF

EXT

ANT 1 ANT 2 ANT 3 ANT 4

GND

VERTER

RX ANT

OUT IN

OUT

q w e r u i o !0 !1

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

t y

1-13

!6 ACCESSORY SOCKET 1 A [ACC 1–A]

!7 ACCESSORY SOCKET 2 A [ACC 2–A]

!8 ACCESSORY SOCKET 1 B [ACC 1–B]

!9 ACCESSORY SOCKET 2 B [ACC 2–B]

Enable connection of external equipment such as a

liner amplifier, an automatic antenna selector/tuner,

TNC for data communications, etc.

• See p. 2-10 for socket information.

@0 ALC LEVEL ADJUSTMENT POT [ALC ADJ]

Adjusts the ALC levels.

No adjustment is required when the ALC output

level of the connected non-Icom linear amplifier is

0 to –4 V DC.

@1 ALC INPUT JACK [ALC] (p. 2-7)

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

ear amplifier.

@2 T/R CONTROL JACK [RELAY] (p. 2-7)

Goes to ground when transmitting to control an ex-

ternal unit.

@3 STRAIGHT KEY JACK [KEY] (p. 2-4)

Accepts a straight key or external electronic keyer

with 1⁄4inch 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)

@4 EXTERNAL KEYPAD JACK [EXT KEYPAD]

(p. 2-6)

Connects an external keypad for direct voice mem-

ory or electronic keyer control.

Transceiver mute control (both transmit and re-

ceive) line is also equipped.

@5 METER JACK [METER] (p. 2-6)

Outputs the receiving signal strength level signal,

transmit output power, VSWR, ALC, speech com-

pression, VDor IDlevel for external meter indication.

@6 DC OUTPUT JACK [DC OUT] (p. 2-6)

Outputs a regulated 14 V DC (approx.) for external

equipment. Connected in parallel with 13.8 V out-

puts of [ACC 1] and [ACC 2]. (max. 1 A in total)

@7 REFERENCE SIGNAL INPUT/OUTPUT

TERMINAL [REF I/O]

Inputs/outputs a 10 MHz reference signal.

@8 S/P DIF INPUT TERMINAL [S/P DIF– IN] (p. 2-6)

@9 S/P DIF OUTPUT TERMINAL [S/P DIF– OUT]

(p. 2-6)

Connects an external equipment, that S/P DIF

input/output are supported.

#0 CI-V REMOTE CONTROL JACK [REMOTE]

(p. 2-5)

➥Connects a PC via the optional CT-17 CI-V LEVEL

CONVERTER for external control of the transceiver

functions.

➥Used for transceive operation with another Icom

CI-V transceiver or receiver.

#1 RS-232C TERMINAL [RS-232C] (p. 2-5)

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

nect the IC-7800 to a PC.

Can be used for remotely control the IC-7800 with-

out the optional CT-17, or for RTTY/PSK31 de-

coded signal output.

#2 KEYBOARD CONNECTOR [KEYBOARD]

(p. 2-6)

Connects a PC keyboard for RTTY and PSK31 op-

erations.

• USB (Universal Serial Bus) type keyboard can be con-

nected.

#3 EXTERNAL DISPLAY TERMINAL

[EXT-DISPLAY] (p. 2-6)

Connects to an external display.

• At least 800×600 pixel display is necessary.

(+)

(_)

NOTE: T/R control voltage and current must be

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

200 mA with MOS-FET switching).

PANEL DESCRIPTION

■LCD display

qBAND WIDTH INDICATOR (p. 5-12)

Shows the passband width of the IF filter.

wMODE INDICATOR

Shows the selected mode.

eSHIFT FREQUENCY INDICATOR (p. 5-12)

Shows the shift frequency of the IF filter.

rQUICK TUNING INDICATOR (p. 3-6)

Appears when the quick tuning step function is in use.

tPASSBAND WIDTH INDICATOR (p. 5-12)

Graphically displays the passband width for twin

PBT operation and center frequency for IF shift op-

eration.

yBANDPASS FILTER INDICATOR

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

selected during CW, RTTY or PSK31 operation.

uRTTY TUNING INDICATOR

Shows the tuning level in RTTY mode.

iCLOCK READOUT

Shows the current time.

oS/RF METER (p. 3-10)

Shows the signal strength while receiving. Shows

the relative output power, SWR, ALC or compres-

sion levels while transmitting.

!0 TX INDICATOR

Indicates the frequency readout for transmit.

!1 VFO/MEMORY CHANNEL INDICATOR (p. 3-3)

Indicates the VFO mode or selected memory chan-

nel number.

!2 IF FILTER INDICATOR

Shows the selected IF filter number.

!3 FREQUENCY READOUTS

Shows the operating frequency.

• Outline characters are used for non-accessing readout.

SELECT MEMORY CHANNEL INDICATOR (p. 9-7)

Indicates the displayed memory channel is set as a

select memory channel.

!5 MEMORY CHANNEL READOUTS

➥Shows the selected memory channel contents in

VFO mode.

➥Shows the VFO contents in memory mode.

!6 MULTI-FUNCTION SWITCH GUIDE

Indicates the function of the multi-function switches.

!7 LCD FUNCTION SWITCH GUIDE

Indicates the function of the LCD function switches

([F-1] – [F-7]).

!8 MULTI-FUNCTION SCREEN

Shows the screens for the multi-function digital

meter, spectrum scope, voice recorder, memory

channel, scan, memory keyer, RTTY decoder, PSK

decoder, IF filter selection or set modes, etc.

1-14

1PANEL DESCRIPTION

q w e t uy ir q w e t uyr

!7 !4 !5

1-15

■Screen menu arrangement

The following screens can be selected from the start

up screen. Choose the desired screen using the fol-

lowing chart.

Pushing [EXIT/SET] several times returns to the start

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

PANEL DESCRIPTION

• Spectrum scope screen (p. 5-2)

• Voice recoder screen (p. 7-3)

• RTTY decoder screen (p. 4-13)

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

• Memory channel screen (p. 8-3)

• PSK31 decoder screen (p. 4-21)

• Scan screen (VFO mode; p. 9-4)

• Scan screen (Memory mode; p. 9-6)

• Set mode menu screen (p. 12-2)

2-1

INSTALLATION AND CONNECTIONS Section 2

■Unpacking ……………………………………………………………… 2-2

■Antenna jumper cable connection …………………………………… 2-2

■Selecting a location …………………………………………………… 2-2

■Rack mounting handle attachment …………………………………… 2-2

■Grounding ……………………………………………………………… 2-3

■Antenna connection …………………………………………………… 2-3

■CF (Compact Flash) memory card …………………………………… 2-3

■Required connections ………………………………………………… 2-4

DFront panel …………………………………………………………… 2-4

DRear panel …………………………………………………………… 2-4

■Advanced connections ………………………………………………… 2-5

DFront panel …………………………………………………………… 2-5

DRear panel—1 ……………………………………………………… 2-5

DRear panel—2 ……………………………………………………… 2-6

■Linear amplifier connections …………………………………………… 2-7

DConnecting the IC-PW1 …………………………………………… 2-7

DConnecting a non-Icom linear amplifier …………………………… 2-7

■Transverter jack information …………………………………………… 2-8

■FSK and AFSK (SSTV) connections ………………………………… 2-8

■Microphone connector information …………………………………… 2-9

■Microphones (options) ………………………………………………… 2-9

DSM-20 ………………………………………………………………… 2-9

DHM-36 ………………………………………………………………… 2-9

■Accessory connector information …………………………………… 2-10

CAUTION!: The transceiver weighs approx. 25 kg (55 lb). 2

peoples should be present to carry, lift up or turn

over the transceiver, etc.

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 equip-

ment included with the IC-7800, see ‘Supplied acces-

sories’ on p. iii of this manual.

■Antenna jumper cable connection

Connect the supplied coaxial cable (terminated with

BNC connectors) between [RX ANT A— IN] and [RX

ANT A— OUT], and, [RX ANT B— IN] and [RX ANT

B— OUT], respectively.

When connecting an external filter unit, pre-amplifier,

etc., connect the unit between [RX ANT A/B— IN] and

[RX ANT A/B— OUT] connectors.

■Selecting a location

Select a location for the transceiver that allows ade-

quate air circulation, free from extreme heat, cold, or

vibrations, and away from TV sets, TV antenna ele-

ments, radios and other electromagnetic sources.

The base of the transceiver has an adjustable stand

for desktop use. Set the stand to one of two angles de-

pending on your operating conditions.

■Rack mounting handle attachment

Remove the four screws from both sides of the front

panel and the two screws from both sides of the side

panel, then attach the rack mounting handles to the

sides of the transceiver using the supplied screws.

2INSTALLATION AND CONNECTIONS

2-3

■Grounding

To prevent electrical shock, television interference

(TVI), broadcast interference (BCI) and other prob-

lems, ground the transceiver through the GROUND

terminal on the rear panel.

For best results, connect a heavy gauge wire or strap

to a long earth-sunk copper rod. Make the distance be-

tween the [GND] terminal and ground as short as pos-

sible.

RWARNING: NEVER connect the [GND]

terminal to a gas or electric pipe, since the connec-

tion could cause an explosion or electric shock.

■Antenna connection

For radio communications, the antenna is of critical im-

portance, along with output power and sensitivity. Se-

lect antenna(s), such as a well-matched 50 Ωantenna,

and feedline. 1.5:1 or better of Voltage Standing Wave

Ratio (VSWR) is recommended for your desired band.

Of course, the transmission line should be a coaxial

cable.

When using 1 antenna, use the [ANT1] connector.

CAUTION: Protect your transceiver from lightning

by using a lightning arrestor.

■CF (Compact Flash) memory card

Insert the supplied CF (Compact Flash) memory

card into the CF memory card slot.

• To remove the CF memory card, push-in the button, lo-

cated at left hand side of the slot.

Make sure the direction of the memory card.

NEVER insert or remove the CF memory card

during accessing indicator lights or blinks.

Accessing indicator

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 transis-

tor. In this case, an antenna tuner is useful to match

the transceiver and antenna. Low SWR allows full

power for transmitting even when using the antenna

tuner. The IC-7800 has an SWR meter to monitor the

antenna SWR continuously.

INSTALLATION AND CONNECTIONS

PL-259 CONNECTOR INSTALLATION EXAMPLE

30 mm ≈9⁄8in 10 mm ≈3⁄8in 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

down. Strip the cable

jacket and soft solder.

Slide the connector

body on and solder it.

Screw the coupling

ring onto the

connector body.

Strip the cable as

shown at left. Soft sol-

der the center con-

ductor.

2-4

■Required connections

DFront panel

DRear panel

MAINSUB

ACC 1

ACC 2

ACC 1

ACC 2

ALC

ADJ

ALC

RELAY

KEY

EXT

KEYPAD

METER

DC OUT

15V

MAX1A

REF I/O

10MHz

10dBm

INOUT

REMOTE

232C

KEY BOARD

EXT

DISPLAY

S/P DIF

EXT

ANT 1 ANT 2 ANT 3 ANT 4

GND

VERTER

RX ANT

OUT IN

OUT

Straight key

A jumper cable is

connected.

Antenna 1, 2, 3, 4 (p. 2-3)

[Example]: ANT1 for 1.8–18 MHz bands, ANT 2 for 21–28 bands

ANT3 for 50 MHz band, ANT 4 for receive antenna

Ground

(p. 2-3)

Use the heaviest gauge

wire or strap available and

make the connection as

short as possible.

Grounding prevents elec-

trical shocks, TVI and oth-

er problems.

AC outlet

R WARNING:

Use the supplied

AC power cable

only.

Microphones (p. 2-9)

CW key

A straight key can be used when the

internal electronic keyer is turned OFF in

keyer set mode. (p. 4-12)

Optional

SM-20

Optional

HM-36

2INSTALLATION AND CONNECTIONS

2-5

■Advanced connections

DFront panel

DRear panel— 1

MAINSUB

ACC 1

ACC 2

ACC 1

ACC 2

ALC

ADJ

ALC

RELAY

KEY

EXT

KEYPAD

METER

DC OUT

15V

MAX1A

REF I/O

10MHz

10dBm

INOUT

REMOTE

232C

KEY BOARD

EXT

DISPLAY

S/P DIF

EXT

ANT 1 ANT 2 ANT 3 ANT 4

GND

VERTER

RX ANT

OUT IN

OUT

RX ANT A/B IN/OUT

Connects an external preamp

or lowpass filter.

External speaker (p. 15-4)

ACC sockets

(pgs.2-8, 2-10)

Antenna 1, 2, 3, 4 (p. 2-7)

Connects a linear amplifier,

antenna selector, etc.

[X-VERTER]

Connects a transverter

for V/UHF band use.

[RELAY], [ALC] (p.2-7)

Used for connecting a

non-Icom linear amplifier.

SP-20

(option)

[REMOTE], [RS-232C] (p. 14-2)

Used for computer control and transceive

operation.

The optional CT-17 is required when con-

necting a PC to [REMOTE].

MIC

Headphones

CF (Compact Flash) memory card

The AFSK modulation signal can also

be input from [MIC].

INSTALLATION AND CONNECTIONS

2-6

DRear panel— 2

MAINSUB

ACC 1

ACC 2

ACC 1

ACC 2

ALC

ADJ

ALC

RELAY

KEY

EXT

KEYPAD

METER

DC OUT

15V

MAX1A

REF I/O

10MHz

10dBm

INOUT

REMOTE

232C

KEY BOARD

EXT

DISPLAY

S/P DIF

EXT

ANT 1 ANT 2 ANT 3 ANT 4

GND

VERTER

RX ANT

OUT IN

OUT

[METER]

Connects an external meter, etc.

External Display

Connects a monitor dis-

play (at least 800×600

resolution) directory.

Video output signal can

be turned ON and OFF

in set mode (p. 12-12)

[DC OUT]

Outputs regulated 14 V

(approx.) DC for external

equipment power supply.

(max. 1 A capacity)

External keypad

Connects an external keypad for direct voice memory

and memory keyer controls.

Keyboard

Connects an USB type

PC keyboard directly for

RTTY/PSK31 operation,

as well as other text edit

operation.

Connects a PC for

audio signal data

input/output.

[S/P DIF— IN/OUT]

3.5 (d) mm; 1⁄8″ plug

1.5 kΩ

±5%

1.5 kΩ

±5%

2.2 kΩ

±5%

4.7 kΩ

±5%

(T1/M1)

(T2/M2)

(T3/M3)

(T4/M4)

USER EXTERNAL KEYPAD

3.5 (d) mm; 1⁄8″ plug

MAIN band meter

SUB band meter

Mute switch: Mutes both transmission and

reception when switched ON this switch for

transceive operaton, etc.

2INSTALLATION AND CONNECTIONS

2-7

■Linear amplifier connections

DConnecting the IC-PW1

DConnecting a non-Icom linear amplifier

RWARNING:

Set the transceiver output power and linear ampli-

fier ALC output level referring to the linear amplifier

instruction manual.

The ALC input level must be in the range 0 V to

–4 V, and the transceiver does not accept positive

voltage. Non-matched ALC and RF power settings

could cause a fire or ruin the linear amplifier.

The maximum control level of [RELAY] jack is DC

16 V/0.5 A with initial setting, and 250 V/200 mA with

“MOS-FET” setting (see p. 12-9 for details). Use an

external relay unit when your non-Icom linear ampli-

fier require the control level that higher voltage

and/or larger current capacity.

RF OUTPUT RF INPUT

SEND

ALC

50 Ω

coaxial cable

Transceiver

ANT1

ALC

RELAY

To an

antenna

Non-Icom linear amplifier

To an

antenna

ACC-1

ANT

ANT2

ANT1

ACC 2

INPUT1

INPUT2

REMOTE

EXCITER

11&2

GND

IC-PW1

AC outlet

(Non-European versions: 100–120/220–240 V

European version : 230 V)

Ground

Transceiver

REMOTE

Remote control cable (supplied with the IC-PW1)

ACC cable (supplied with the IC-PW1)

Be sure to connect the cable

to the 7-pin ACC 2 jack.

Coaxial cable

(supplied with the IC-PW1)

Coaxial cable*

*Optional

Connect

[INPUT2]

if necessary

INSTALLATION AND CONNECTIONS

2-8

■Transverter jack information

When 2 to 13.8 V is applied to pin 6 of [ACC 2], the [X-

VERTER] connector is activated for transverter opera-

tion and the antenna connectors do not receive or

transmit any signals. (p. 4-6)

While receiving, [X-VERTER] connector can be acti-

vated as an input terminal from an external transverter.

While transmitting, the [X-VERTER] connector outputs

signals of the displayed frequency at –20 dBm (22 mV)

as signals for the external transverter.

■FSK and AFSK (SSTV) connections

To connect a TNC or scan converter, etc., refer to the

diagram below.

Connect to serial port, parallel

port, speaker jack, microphone

jack and line IN/OUT jack, etc.

See the instruction manual of

the application for details.

D AFSK operation

• When connecting to [ACC 1]

• When connecting to [MIC]

• When using a PC application

• When using a TNC

RS-232C

TNC or scan converter

PTT

Audio output

AF input

GND

AFSK output

AF input

GND

PTT*

SQL input†

*When using the VOX function, no need to connect. Refer to the instruction

manual of the external equipment (TNC, etc.).

†When connecting the squelch line, consult the necessary manual (TNC, etc.).

ert

n†

RS-232C

TNC or scan converter

Connect to serial port, parallel

port, speaker jack, microphone

jack and line IN/OUT jack, etc.

See the instruction manual of the

application for details.

DFSK operation— when connecting to [ACC 1]

• When using a PC application

• When using a TNC

Rear panel view

RTTY

GND

SEND

RTTY

GND

SEND

RTTY OUTPUT

GND

AUDIO INPUT

PTT

RTTY OUTPUT

GND

AUDIO INPUT

PTT

Transverter connector

2INSTALLATION AND CONNECTIONS

2-9

■Microphone connector information

(Front panel view)

CAUTION: DO NOT short pin 2 to ground as this

can damage the internal 8 V regulator.

NOTE: DC voltage is applied to pin 1 for micro-

phone operation. Take care when using a non-Icom

microphone.

■Microphones (options)

qUP/DOWN SWITCHES [UP]/[DN]

Change the selected readout frequency or memory

channel.

• Continuous pushing changes the frequency or memory

channel number continuously.

• While pushing [XFC], the transmit readout frequency can

be controlled while in split frequency operation.

• The [UP]/[DN] switch can simulate a key paddle. Preset

in the keyer set mode. (p. 4-12)

wPTT SWITCH

Push and hold to transmit; release to receive.

ePTT LOCK SWITCH (available for SM-20 only)

Push to toggles between transmit and receive.

D SM-20

D HM-36

y GND (PTT ground)

t PTT

r Main readout squelch switch

q Microphone input

w +8 V DC output

e Frequency up/down

u GND

(Microphone ground)

i Main readout AF output

(varies with [AF]/[BAL])

INSTALLATION AND CONNECTIONS

[MIC] FUNCTION DESCRIPTION

Pin No.

w+8 V DC output Max. 10 mA

Frequency up Ground

Frequency down Ground through 470 Ω

rSquelch open “Low” level

Squelch closed “High” level

2-10

■Accessory connector information

2INSTALLATION AND CONNECTIONS

ACC 2

PIN No.

NAME DESCRIPTION SPECIFICATIONS

ACC 1

PIN No.

NAME DESCRIPTION SPECIFICATIONS

NOTE: If the CW side tone level limit or beep level

limit is in use, the CW side tone or beep tone de-

creases from the fixed level when the [AF] control is

rotated above a specified level, respectively. (p. 12-

“High” level : More than 2.4 V

1 RTTY Controls RTTY keying “Low” level : Less than 0.6 V

Output current : Less than 2 mA

2 GND Connects to ground. Connected in parallel with ACC 2 pin 2.

Input/output pin. Ground level : –0.5 V to 0.8 V

3 SEND Goes to ground when transmitting. Output current : Less than 20 mA

When grounded, transmits. Input current (Tx) : Less than 200 mA

Connected in parallel with ACC 2 pin 3.

4 MOD Modulator input. Input impedance : 10 kΩ

Connects to a modulator. Input level : Approx. 100 mV rms

AF detector output. Output impedance : 4.7 kΩ

5 AF Fixed, regardless of [AF] position Output level : 100–300 mV rms

in default settings. (see notes below)

6 SQLS Squelch output. SQL open : Less than 0.3 V/5 mA

Goes to ground when squelch opens.

SQL closed : More than 6.0 V/100 µA

7 13.8 V 13.8 V output when power is ON. Output current : Max. 1 A

Connected in parallel with ACC 2 pin 7.

Control voltage : –4 V to 0 V

8 ALC ALC voltage input. Input impedance : More than 10 kΩ

Connected in parallel with ACC 2 pin 5.

1 8 V Regulated 8 V output. Output voltage : 8 V ±0.3 V

Output current : Less than 10 mA

2 GND Same as ACC 1 pin 2.

3 SEND Same as ACC 1 pin 3.

4 BAND Band voltage output. Output voltage : 0 to 8.0 V

(Varies with amateur band)

5 ALC Same as ACC 1 pin 8.

6TRV

Activates [X-VERTER] input/output Input impedance : More than 10 kΩ

when “HIGH” voltage is applied. Input voltage : 2 to 13.8 V

13.8 V

Same as ACC 1 pin 7.

3-1

BASIC OPERATIONS Section 3

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

■Initial settings …………………………………………………………… 3-2

■Main/Sub band selection ……………………………………………… 3-3

■Selecting VFO/memory mode ………………………………………… 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

DBand edge warning beep …………………………………………… 3-7

■Operating mode selection ……………………………………………… 3-8

■Volume setting ………………………………………………………… 3-9

■RF gain adjustment …………………………………………………… 3-9

■Squelch level adjustment ……………………………………………… 3-9

■Meter indication selection …………………………………………… 3-10

DMulti-function digital meter ………………………………………… 3-10

DMeter type selection ……………………………………………… 3-11

■Basic transmit operation ……………………………………………… 3-12

DTransmitting ………………………………………………………… 3-12

DMicrophone gain adjustment ……………………………………… 3-12

DDrive gain adjustment ……………………………………………… 3-13

3-2

■When first applying power (CPU resetting)

Before first applying power, make sure all connections

required for your system are complete by referring to

Section 2. Then, reset the transceiver using the follow-

ing procedure.

Resetting CLEARS all programmed contents in

memory channels and returns programmed values

in set mode to default values.

qTurn the main power ON with [I/O] on the rear

panel.

• The transceiver power is still OFF and the [POWER] in-

dicator lights orange.

wWhile pushing and holding [F-INP•ENT] and [MW],

push [POWER] to turn power ON.

• The CPU is reset.

• The CPU start up and it takes approx. 5 sec.

• The transceiver displays its initial VFO frequencies

when resetting is complete.

eCorrect the set mode settings after resetting, if de-

sired.

Under cooler temperatures, the LCD may appear

dark and unstable after turning power ON. This is

normal and does not indicate any equipment mal-

function.

■Initial settings

After resetting the transceiver, set controls as shown

in the figure below.

[RF PWR]

: Max. clockwise

[MIC]

: 10–12 o’clock

[SQL]

: Max. counter-

clockwise

[AGC]: 12 o’clock

[DEGI-SEL]

: 12 o’clock

[NOTCH]

: 12 o’clock

[NB]

: Max. counter clockwise

[AF]

: Max. counter-

clockwise

[MONI GAIN], [COMP], [DRIVE],

[VOX GAIN], [ANTI VOX]

: 12 o’clock

[RF]

: Max. clockwise

[DELAY]

: Max. clockwise

[KEY SPEED]

: 10–12 o’clock

[CW PITCH]

: 12 o’clock

[NR]

: Max. counter clockwise

[F-INP•ENT][MW]

[I/O]

[POWER]

3BASIC OPERATIONS

■Main/Sub band selection

The IC-7800 has 2 bands, main and sub bands. The

main band is displayed on the left hand side, and the

sub band is displayed on the right hand side of the

LCD. Some functions can only be accessed to the se-

lected band and the transmission is only permitted for

the main band (except the split frequency operation).

➥Push [MAIN] to select the main band.

• The key backlight for [MAIN] lights.

• Main band’s frequency readout highlighted.

➥Push [SUB] to select the sub band.

• The key backlight for [SUB] lights.

• Sub band’s frequency readout highlighted.

■Selecting VFO/memory mode

VFO is an abbreviation of Variable Frequency Oscilla-

tor, and is commonly referred to as a main tuning func-

tion.

The main dial is often called the “VFO knob.”

➥Push [V/M] to switch between VFO and memory

modes.

• “VFO” appears when VFO mode, or the selected mem-

ory channel number appears when memory mode is se-

lected beside the frequency readout.

• Pushing [V/M] for 1 sec. transfers the contents of the se-

lected memory channel to VFO mode. (p. 8-5)

“VFO” indicator

Memory channel

number

[V/M]

[MAIN] [SUB]

3-3

BASIC OPERATIONS

3-4

■Selecting an operating band

The triple band stacking register provides 3 memories

in one band. 3 sets of a frequency and operating mode

on each band are automatically stored when used.

If a band key is pushed once, the frequency and oper-

ating mode last used are called up. When the key is

pushed again, another stored frequency and operating

mode are called up.

This function is convenient when you operate 3 oper-

ating modes on one band. For example, one register

is used for a CW frequency, another for an SSB fre-

quency and the other one for an RTTY frequency.

See the table below for a list of the band available and

the default settings for each band.

DUsing the band stacking registers

qPush [14•5], then select a frequency and an oper-

ating mode.

• Frequency and operating mode are memorized in the

first band stacking register.

wPush [14•5] again, then select another frequency

and operating mode.

• This frequency and operating mode are memorized in

the second band stacking register.

ePush [14•5] again, then select another frequency

and operating mode.

• This frequency and operating mode are memorized in

the third band stacking register.

• When a fourth frequency and operating mode are se-

lected on a band, the first register set in step q, is over

written.

[Example]: 14 MHz band

Band keys

3BASIC OPERATIONS

BAND REGISTER 1 REGISTER 2 REGISTER 3

1.8 MHz 1.900000 MHz CW 1.910000 MHz CW 1.915000 MHz CW

3.5 MHz 3.550000 MHz LSB 3.560000 MHz LSB 3.580000 MHz LSB

7 MHz 7.050000 MHz LSB 7.060000 MHz LSB 7.020000 MHz CW

10 MHz 10.120000 MHz CW 10.130000 MHz CW 10.140000 MHz CW

14 MHz 14.100000 MHz USB 14.200000 MHz USB 14.050000 MHz CW

18 MHz 18.100000 MHz USB 18.130000 MHz USB 18.150000 MHz USB

21 MHz 21.200000 MHz USB 21.300000 MHz USB 21.050000 MHz CW

24 MHz 24.950000 MHz USB 24.980000 MHz USB 24.900000 MHz CW

28 MHz 28.500000 MHz USB 29.500000 MHz USB 28.100000 MHz CW

50 MHz 50.100000 MHz USB 50.200000 MHz USB 51.000000 MHz FM

General 15.000000 MHz USB 15.100000 MHz USB 15.200000 MHz USB

3-5

■Frequency setting

The transceiver has several tuning methods for conve-

nient frequency tuning.

DTuning with the main dial

qPush the desired band key on the keypad 1–3

times.

• 3 different frequencies can be selected on each band

with the band key.

• Push [MAIN] or [SUB] to select the band in advance.

wRotate the main dial to set the desired frequency in

main band, rotate the sub dial to set the desired fre-

quency in sub band.

If the dial lock function is activated, the lock indicator

lights, and the main dial does not function. In this

case, push [LOCK] to deactivate the lock function.

(see p. 5-18 for details)

✔

CONVENIENT!

The sub dial is available for when tuning frequency in

sub band. The sub dial allows quick tuning in sub band

without main/sub band selection.

DDirect frequency entry with the keypad

The transceiver has a keypad for direct frequency

entry as described below.

qPush [MAIN] or [SUB] to select the band.

wPush [F-INP•ENT].

• “ ” indicator appears and keypad backlight

lights.

eInput the desired frequency

• Push [GENE•.] to input “. (decimal point)” between the

MHz units and kHz units.

rPush [F-INP•ENT] to set the input frequency.

• To cancel the input, push [Y]/[Z] instead of [GENE•.].

[EXAMPLE]

7.00000 MHz

21.24000 MHz

21.24000 MHz ⇒ 21.36000 MHz

Push

Keypad

Band keys

Main dial Sub dial

BASIC OPERATIONS

3-6

DQuick tuning step

The operating frequency can be changed in kHz steps

(0.1, 1, 5, 9, 10, 12.5, 20 or 25 kHz selectable) for

quick tuning.

qPush [TS] to turn the quick tuning function ON.

•“Z” appears when the quick tuning function ON.

wRotate the main dial to change the frequency in pro-

grammed kHz steps.

ePush [TS] again to turn OFF the indicator.

rRotate the main dial for normal tuning if desired.

DSelecting “kHz” step

qPush [TS] to turn the quick tuning function ON and

OFF.

•“Z” appears when the quick tuning function ON.

wPush [TS] for 1 sec. to enter tuning step setting dis-

play.

• Selected tuning steps for all modes appear.

eSelect the desired operating mode.

Rotate the main dial to select the desired tuning step.

tRepeat steps eand rto select quick tuning steps

for other modes, if desired.

yPush [EXIT/SET] to exit the setting display.

NOTE: When entering into quick tuning step set

mode, the quick tuning function must be activated,

and the set mode can be accessed from either

band’s quick tuning switch, [TS]. Therefore, use the

same band’s [TS] for quick tuning function selection

and the set mode entering.

D1⁄4tuning step function

When operating in SSB data, CW, RTTY or PSK, the

1⁄4tuning function is available. Dial rotation is reduced

to 1⁄4of normal when the 1⁄4tuning function is in use.

➥Push [1/4] to toggle the 1⁄4tuning function ON and

OFF.

• “ ” appears when the 1⁄4tuning function ON

1⁄4

1⁄4 tuning step OFF 1⁄4 tuning step ON

Main dial [TS]Select mode [TS]

3BASIC OPERATIONS

Quick tuning indicator Quick tuning indicator

3-7

DSelecting 1 Hz step

The minimum tuning step of 1 Hz can be used for fine

tuning.

qPush [TS] to turn the quick tuning function OFF.

wPush [TS] for 1 sec. to turn the 1 Hz tuning step ON

and OFF.

NOTE: 1 Hz tuning step activates for both main and

sub bands simultaneously. Therefore, either [TS]

can be used for the 1 Hz tuning step selection.

DAuto tuning step function

When rotating main or sub dial rapidly, the tuning

speed accelerated automatically as selected.

qPush [EXIT/SET] several times to close a multi-

function screen, if necessary.

wPush [F-7•SET] to select set mode menu screen.

• Pushing and holding [EXIT/SET] for 1 sec. also selects

set mode menu screen.

ePush [F-5•OTHERS] to enter miscellaneous (oth-

ers) set mode.

rPush [F-1•Y] or [F-2•Z] to select “MAIN DIAL Auto

TS” or “SUB DIAL Auto TS.”

• “MAIN DIAL Auto TS” for main dial, “SUB DIAL Auto TS”

for sub dial selection.

tRotate main dial to select the desired condition from

high, low and OFF.

• High : Approx. 5 times faster

• Low : Approx. twice faster

• OFF : Auto tuning step is turned OFF.

yPush [EXIT/SET] to exit the set mode.

DBand edge warning beep

When selecting a frequency, that lies outside of a band’s

specified frequency range, a warning beep sounds.

This function can be turned OFF in set mode, if de-

sired.

qPush [EXIT/SET] several times to close a multi-

function screen, if necessary.

wPush [F-7•SET] to select set mode menu screen.

• Pushing and holding [EXIT/SET] for 1 sec. also selects

set mode menu screen.

ePush [F5•OTHERS] to enter miscellaneous (others)

set mode.

rPush [F-1•Y] or [F-2•Z] to select “Beep (Band

Edge).”

tRotate main dial to turn the band edge warning

beep ON and OFF.

yPush [EXIT/SET] to exit the set mode.

[F-1•Y][F-2•Z]

[F5•OTHERS]

[EXIT/SET] [F-7•SET]

1Hz step indicator 1Hz step indicator

BASIC OPERATIONS

3-8

■Operating mode selection

SSB (USB/LSB), SSB data (USB data/LSB data), CW,

CW reverse (CW-R), RTTY, RTTY reverse (RTTY-R),

PSK, PSK reverse (PSK-R), AM, AM data, FM and FM

data modes are available in the IC-7800. Select the

desired operation mode as follows.

To select a mode of operation, push the desired mode

switch momentarily. Push the switch again to toggle

between USB and LSB, CW and CW-R, RTTY/RTTY-

R and PSK/PSK-R, AM and FM, if necessary. Push the

switch for 1 sec. to toggle between RTTY and RTTY-

R, PSK and PSK-R, if necessary.

See the diagram below left for the order of selection.

Microphone signals are muted when data mode is

selected.

• Selecting SSB mode

➥Push [SSB] to select USB or LSB.

• USB is selected first when above 10 MHz; or LSB is se-

lected first when below 10 MHz operation.

(USB is selected when 5 MHz band is selected for the

USA version.)

• After USB or LSB is selected, push [SSB] to toggle be-

tween USB and LSB.

• Selecting CW mode

➥Push [CW] to select CW.

• After CW is selected, push [CW] to toggle between CW

and CW reverse mode.

• Selecting RTTY/PSK mode

➥Push [RTTY/PSK] to select RTTY or PSK.

• After RTTY or PSK is selected, push [RTTY/PSK] to tog-

gle between RTTY and PSK.

• After RTTY or PSK is selected, push [RTTY/PSK] for

1 sec. to toggle between RTTY and RTTY reverse, or,

PSK and PSK reverse mode, respectively.

• Selecting AM/FM mode

➥Push [AM/FM] to select AM or FM.

• After AM or FM is selected, push [AM/FM] to toggle be-

tween AM and FM.

• Selecting DATA mode

➥After USB, LSB, AM, synchronous AM or FM is se-

lected, push [DATA] to select USB data, LSB data,

AM data, synchronous AM data or FM data mode,

respectively.

• After data mode is selected, push [DATA] to toggle be-

tween regular voice and data mode.

• After data mode is selected, push [DATA] for 1 sec. to

select data 1, 2 and 3 in sequence.

USB

Push mode switch

for 1 sec.

Push mode switch

momentarily.

LSB

CW-R

RTTY-R RTTY PSK PSK-R

USB

LSB

USB-D1

LSB-D1

AM-D1

FM-D1

USB-D2

LSB-D2

AM-D2

FM-D2

USB-D3

LSB-D3

AM-D3

FM-D3

[SSB] [CW] [RTTY/PSK] [AM/FM] [DATA]

3BASIC OPERATIONS

3-9

■Volume setting

➥Rotate [AF] control clockwise to increase; counter-

clockwise to decrease the audio output level.

• Set a suitable audio level.

■RF gain adjustment

➥Rotate [RF] control clockwise to increase; counter-

clockwise to decrease the receiver sensitivity.

■Squelch level adjustment

The squelch removes noise output from the speaker

(closed position) when no signal is received.

➥When no signal is received, rotate [SQL] control

fully counterclockwise first, then rotate [SQL] clock-

wise to the point that the noise just disappears.

[SQL] for main [SQL] for sub

S-meter squelch

Noise squelch (Recommended level; FM mode only)

Squelch is

open

[RF] for main [RF] for sub

Sensitivity

increases

Sensitivity

decreases

[AF] for main [AF] for sub

Audio output

increases

Audio output

decreases

BASIC OPERATIONS

■Meter indication selection

The S/RF meter indication, during transmit, can be se-

lected from the following items as your desired.

➥Push [METER] several times to select the desired

item.

Indicates the relative RF output power in

watts.

Indicates the VSWR over the transmis-

sion line.

Indicates the ALC level. The ALC circuit

begins to activate when the RF output

power reaches a preset level.

Indicates the compression level when

the speech compressor is in use.

Indicates the drain’s current of the final

FETs.

Indicates the drain’s terminal voltage of

the final FETs.

DMulti-function digital meter

The IC-7800 can display the multi-function digital

meter in the LCD display, which displays all transmit

meters simultaneously.

qPush [METER] for 1 sec. to turn the multi-function

digital meter ON.

wPush [F-1•P-HOLD] to toggle the peak level hold

function ON.

• “P-HOLD” appears on the window title when the peak

level hold function is turned ON.

ePush [METER] for 1 sec., or push [EXIT/SET] to

turn the multi-function digital meter OFF.

“P-HOLD” indicator

510

010

ALC 52V

11.5 23∞

10 50 100 150 200 250

SWR

COMP

59+20 +40 +60dB

Signal strength

level readout

ID readout

Power level readout

VSWR readout

Compression level

readout ALC level readout VD readout

[METER]

3-10

3BASIC OPERATIONS

3-11

DMeter type selection

Total of 3 meter types are available in the IC-7800—

Standard, Edgewise and Bar meters.

Follow the instructions below for the meter type selec-

tion.

qPush [EXIT/SET] several times to return to normal

screen, if necessary.

wPush [F-7•SET], then push [F-3•DISPLAY] to select

display set mode.

ePush [F-1•Y] or [F-2•Z] to select “Meter type (Nor-

mal Screen)” item.

rRotate main dial to select the desired meter type

from “Standard,” “Edgewise” and “Bar.”

tPush [EXIT/SET] to exit display set mode.

• Edgewise meter

• Bar meter

[F-1•Y] [EXIT/SET][F-7•SET][F-2•Z]

[F-3•DISPLAY]

BASIC OPERATIONS

3-12

■Basic transmit operation

DTransmitting

Before transmitting, monitor your selected operating

frequency to make sure transmitting won’t cause inter-

ference to other stations on the same frequency.

qPush [TRANSMIT] or [PTT] (microphone) to trans-

mit.

• The main band’s [TX] indicator lights red.

• When the split operation is activated, the sub band’s [TX]

indicator lights.

wPush [TRANSMIT] again or release [PTT] (micro-

phone) to return to receive.

✔

Adjusting the transmit output power

➥Rotate [RF PWR].

• Adjustable range : 5 W to 200 W

(AM mode: 5 W to 50 W)

DMicrophone gain adjustment

Before transmitting, monitor your selected operating

frequency to make sure transmitting won’t cause inter-

ference to other stations on the same frequency.

qPush [METER] to select the ALC meter.

wPush [PTT] (microphone) to transmit.

• Talk into the microphone at your normal voice level.

eWhile talking into the microphone, rotate [MIC] so

that the ALC meter reading doesn’t go outside the

ALC zone. (see at left)

rRelease [PTT] (microphone) to return to receive.

510

010

ALC 52V

11.5 23∞

10 50 100 150 200 250

SWR

COMP

59+20 +40 +60dB

ALC zone

[MIC] [METER]

Increases

max. 200 W

(50 W for AM)

Decreases

min. 5 W

[TRANSMIT]

[RF PWR] [TX] indicator

Before transmitting, monitor your selected oper-

ating frequency to make sure transmitting won’t

cause interference to other stations on the same

frequency. It’s good Amateur practice to listen

first, and then, even if nothing is heard, ask “is

the frequency in use” once or twice, before you

being operating on that frequency.

3BASIC OPERATIONS

3-13

DDrive gain adjustment

The drive gain can be activated for the all modes ex-

cept SSB without speech compressor to adjust the am-

plifying gain at the drive stage.

Before transmitting, monitor your selected operating

frequency to make sure transmitting won’t cause inter-

ference to other stations on the same frequency.

qPush [METER] to select the ALC meter.

wPush [PTT] (microphone; SSB with [COMP] ON, AM

or FM), key down (CW) or push [TRANSMIT] (RTTY

or PSK) to transmit.

eWhile talking into the microphone, keying down or

transmitting, rotate [DRIVE] so that the ALC meter

reading swinging within 30 to 50% of the ALC scale.

(see left)

• Talk into the microphone at your normal voice level.

rRelease [PTT], stop keying or push [TRANSMIT]

again to return to receive.

[DRIVE][METER]

BASIC OPERATIONS

510

010

ALC 52V

11.5 23∞

10 50 100 150 200 250

SWR

COMP

59+20 +40 +60dB

Drive gain range

ICOM orporated 259000 Amateur HF Scanning Transceiver User Manual IC 7800 Eng

ICOM Incorporated Amateur HF Scanning Transceiver IC 7800 Eng

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Users Manual Part 1

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