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Icom mottagare IC-7400

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HF/VHF

ALL MODE TRANSCEIVER

i7400

INSTRUCTION MANUAL

FOREWORD

We understand that you have a choice of many differ-

ent radios in the market place. We want to take a cou-

ple of moments of your time to thank you for making

the IC-7400 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-7400.

FEATURES

• 32-bit Floating point DSP and 24-bit AD/DA converter

• DSP IF Filter creates 102 types of ﬁlter

• All mode capability covering 160–2 m

• 100 Watt continuous duty cycle

• All mode digital modulation and demodulation

• RTTY demodulator and decoder

• Twin Pass Band Tuning

• RF speech compression with selectable pass band

• Microphone Equalizer

• SSB/CW synchronous tuning

IMPORTANT

READ THIS INSTRUCTION MANUAL

CAREFULLY before attempting to operate the

transceiver.

SAVE THIS INSTRUCTION MANUAL. This

manual contains important safety and operating in-

structions for the IC-7400.

EXPLICIT DEFINITIONS

PRECAUTIONS

RWARNING HIGH VOLTAGE! NEVER attach an

antenna or internal antenna connector during transmis-

sion. This may result in an electrical shock or burn.

RNEVER apply AC to the [DC13.8V] jack on the trans-

ceiver rear panel. This could cause a ﬁre or ruin the trans-

ceiver.

RNEVER apply more than 16 V DC, such as a 24 V

battery, to the [DC13.8V] jack on the transceiver rear

panel. This could cause a ﬁre or ruin the transceiver.

RNEVER let metal, wire or other objects touch any in-

ternal part or connectors on the rear panel of the trans-

ceiver. This may result in an electric shock.

NEVER expose the transceiver to rain, snow or any liquids.

AVOID using or placing the transceiver in areas with tem-

peratures below –10°C (+14°F) or above +60°C (+140°F).

Be aware that temperatures on a vehicle’s dashboard can

exceed 80°C (+176°F), resulting in permanent damage to

the transceiver if left there for extended periods.

AVOID placing the transceiver in excessively dusty envi-

ronments 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.

During mobile operation, operate the transceiverDO NOT

without running the vehicle’s engine. When the trans-

ceiver’s power is ON and your vehicle’s engine is OFF,

the vehicle’s battery will soon become exhausted.

Make sure the transceiver power is OFF before starting

the vehicle. This will avoid possible damage to the trans-

ceiver by ignition voltage spikes.

During maritime mobile operation, keep the transceiver

and microphone as far away as possible from the magnetic

navigation compass to prevent erroneous indications.

BE CAREFUL! The heatsink will become hot when oper-

ating 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 linear am-

pliﬁer’s maximum input level, otherwise, the linear ampli-

ﬁer will be damaged.

Use Icom microphones only (supplied or optional). Other

manufacturer’s microphones have different pin assign-

ments, and connection to the IC-7400 may damage the

transceiver.

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 personal injury, fire or electric

shock.

SUPPLIED ACCESSORIES

The transceiver comes with the following accessories.

Qty.

qDC power cable* ................................................ 1

wHand microphone (HM-36) ................................ 1

eSpare fuses (FGB 30 A) .................................... 2

rSpare fuse (FGB 5 A) ........................................ 1

tCW keyer plug (AP-330) .................................... 1

*The illustration shows OPC-025D. However, OPC-639 is

supplied with versions, which “CE” symbol on the serial

number.

TABLE OF CONTENTS

q w

e r t

FOREWORD ..................................... i

IMPORTANT ..................................... i

EXPLICIT DEFINITIONS .................. i

PRECAUTIONS ................................ i

TABLE OF CONTENTS ................... ii

QUICK REFERENCE GUIDE ..... I –X

■Installation ....................................... I

■Operation ....................................... III

■Your ﬁrst contact ........................... IV

■Ready to call CQ? ......................... IX

1 PANEL DESCRIPTION ........ 1– 12

■Front panel ..................................... 1

■Rear panel ...................................... 7

■LCD display .................................... 9

■Multi function switches .................. 11

■Microphone (HM-36) .................... 12

2 INSTALLATION AND

CONNECTIONS ................ 13– 17

■Unpacking .................................... 13

■Selecting a location ...................... 13

■Grounding ..................................... 13

■Antenna connection ...................... 13

■Required connections ................... 14

■Advanced connections ................. 15

■Power supply connections ............ 16

■Linear ampliﬁer connections (not

usable in European countries)....... 17

■External antenna tuner

connections .................................. 17

3 BASIC OPERATION .......... 18 – 25

■When ﬁrst applying power

(CPU resetting) ............................. 18

■Initial settings ................................ 18

■Selecting an operating band ........ 19

■Selecting VFO/memory mode ...... 20

■VFO operation .............................. 20

■Frequency setting ......................... 21

■Operating mode selection ............ 23

■Volume setting .............................. 23

■Squelch and receive (RF)

sensitivity ...................................... 24

■Basic transmit operation ............... 25

4 RECEIVE AND TRANSMIT 26–45

■Operating SSB ............................. 26

■Operating CW ............................... 27

■Electronic keyer functions ............ 29

■Operating RTTY (FSK) ................. 35

■RTTY functions ............................. 36

■Operating AM ............................... 40

■Operating FM ............................... 41

■Repeater operation ....................... 44

5 FUNCTIONS FOR RECEIVE

........................................ 46– 53

■Simple band scope ....................... 46

■Preamp/Attenuator ....................... 47

■RIT function .................................. 47

■AGC function ................................ 48

■IF ﬁlter selection ........................... 49

■IF (DSP) ﬁlter shape ..................... 50

■Noise blanker ............................... 50

■Meter peak hold function .............. 50

■Twin PBT operation ...................... 51

■Noise reduction ............................ 52

■Notch function .............................. 52

■Dial lock function .......................... 52

■Voice squelch control function ...... 53

6 FUNCTIONS FOR TRANSMIT

............................................ 54 – 60

■VOX function ................................ 54

■Break-in function .......................... 55

■∂TX function ................................ 56

■Monitor function ............................ 56

■Speech compressor ..................... 57

■Transmit ﬁlter width selection ....... 57

■Split frequency operation .............. 58

■Quick split function ....................... 59

■Measuring SWR ........................... 60

7 MEMORY OPERATION ..... 61 – 67

■Memory channels ......................... 61

■Memory channel selection ............ 61

■Programming a memory ............... 62

■Memory clearing ........................... 62

■Selecting the call channel ............. 63

■Programming the call channel ...... 63

■Frequency transferring ................. 64

■Programming scan edges ............ 65

■Assigning memory names ............ 66

■Memo pads ................................... 67

8 SCANS .............................. 68– 73

■Scan types .................................... 68

■Preparation ................................... 68

■Voice squelch control function ...... 69

■Scan set mode ............................. 69

■Programmed scan/Fine programmed

scan .............................................. 70

■Memory scan operation ................ 71

■Select memory scan ..................... 71

■∂ ∂F scan operation and Fine F scan

...................................................... 72

■Tone scan/DTCS code scan

operation ...................................... 73

9 ANTENNA TUNER OPERATION

......................................... 74–76

■Antenna connection and selection 74

■Antenna tuner operation ............... 75

■Optional external tuner operation . 76

10 DATA COMMUNICATION .. 77– 79

■Connections ................................. 77

■Packet (AFSK) operation .............. 78

■Adjusting the TNC output level ..... 79

■Data transmission speed .............. 79

11 SET MODE ......................... 80–88

■General set mode ......................... 80

■Tone control set mode .................. 88

12 OPTION INSTALLATION .. 89 – 90

■Opening the transceiver’s case .... 89

■UT-102

VOICE SYNTHESIZER UNIT

... 89

■CR-338

HIGH STABILITY CRYSTAL UNIT

..................................................... 90

13 MAINTENANCE ................. 91–93

■Trouble shooting ........................... 91

■Fuse replacement ......................... 92

■Tuning dial brake adjustment ....... 92

■Resetting the CPU ........................ 93

■Frequency calibration (approximate)

..................................................... 93

14 CONTROL COMMAND ...... 94–98

■Remote jack (CI-V) information .... 94

15 SPECIFICATIONS..................... 99

16 OPTIONS................................. 100

17 ABOUT CE ...................... 101–102

Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United King-

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

Produktspecifikationer

Varumärke:	Icom
Kategori:	mottagare
Modell:	IC-7400

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