IC-7400_user.pdf

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1、2001 NEW HF/VHF ALL MODE TRANSCEIVER i7400 INSTRUCTION MANUAL IC-7400.qxd 02.4.2 11:34 Page 1 i 2001 NEW2001 NEW 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 r

2、adio of choice, and hope you agree with Icoms philosophy of “technology fi rst”.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 fi lter All mode capability covering 1602 m 10

3、0 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 CAREFULLYbefore attempting to operate the

4、 transceiver. SAVE THIS INSTRUCTION MANUAL.This manual contains important safety and operating in- structions for the IC-7400. EXPLICIT DEFINITIONS PRECAUTIONS RWARNING HIGH VOLTAGE! NEVERattach an antenna or internal antenna connector during transmis- sion. This may result in an electrical shock or

5、 burn. RNEVERapply AC to the DC13.8V jack on the trans- ceiver rear panel. This could cause a fi re or ruin the trans- ceiver. RNEVERapply 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 fi re or ruin the transceiver. RNEVERlet metal,

6、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 10C (+14F) or above +60C (+

7、140F). Be aware that temperatures on a vehicles dashboard can exceed 80C (+176F), 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

8、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, DO NOT operate the transceiver without running the vehicles engine. When the trans- ceivers power is ON and your vehicles en

9、gine is OFF, the vehicles 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 poss

10、ible 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 amplifi er is connected, set the transceivers RF output power to less than the linear am- plifi

11、 ers maximum input level, otherwise, the linear ampli- fi er will be damaged. Use Icom microphones only (supplied or optional). Other manufacturers microphones have different pin assign- ments, and connection to the IC-7400 may damage the transceiver. WORDDEFINITION RRWARNING Personal injury, fi re

12、hazard or electric shock may occur. CAUTIONEquipment damage may occur. NOTE If disregarded, inconvenience only. No risk or personal injury, fire or electric shock. IC-7400.qxd 02.4.2 11:34 Page 2 ii SUPPLIED ACCESSORIES The transceiver comes with the following accessories. Qty. q DC power cable* . 1

13、 w Hand microphone (HM-36) . 1 e Spare fuses (FGB 30 A) . 2 r Spare fuse (FGB 5 A) . 1 t CW 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 qw ert FOREWORD . i IMPORTANT . i EXPLICIT DEFIN

14、ITIONS . i PRECAUTIONS . i TABLE OF CONTENTS . ii QUICK REFERENCE GUIDE . IX I Installation . I I Operation . III I Your fi rst contact . IV I Ready to call CQ? . IX 1PANEL DESCRIPTION . 112 I Front panel . 1 I Rear panel . 7 I LCD display . 9 I Multi function switches . 11 I Microphone (HM-36) . 12

15、 2INSTALLATION AND CONNECTIONS . 1317 I Unpacking . 13 I Selecting a location . 13 I Grounding . 13 I Antenna connection . 13 I Required connections . 14 I Advanced connections . 15 I Power supply connections . 16 I Linear amplifi er connections (not usable in European countries). 17 I External ante

16、nna tuner connections . 17 3BASIC OPERATION . 1825 I When fi rst applying power (CPU resetting) . 18 I Initial settings . 18 I Selecting an operating band . 19 I Selecting VFO/memory mode . 20 I VFO operation . 20 I Frequency setting . 21 I Operating mode selection . 23 I Volume setting . 23 I Squel

17、ch and receive (RF) sensitivity . 24 I Basic transmit operation . 25 4RECEIVE AND TRANSMIT 2645 I Operating SSB . 26 I Operating CW . 27 I Electronic keyer functions . 29 I Operating RTTY (FSK) . 35 I RTTY functions . 36 I Operating AM . 40 I Operating FM . 41 I Repeater operation . 44 5FUNCTIONS FO

18、R RECEIVE . 4653 I Simple band scope . 46 I Preamp/Attenuator . 47 I RIT function . 47 I AGC function . 48 I IF fi lter selection . 49 I IF (DSP) fi lter shape . 50 I Noise blanker . 50 I Meter peak hold function . 50 I Twin PBT operation . 51 I Noise reduction . 52 I Notch function . 52 I Dial lock

19、 function . 52 I Voice squelch control function . 53 6FUNCTIONS FOR TRANSMIT . 5460 I VOX function . 54 I Break-in function . 55 I TX function . 56 I Monitor function . 56 I Speech compressor . 57 I Transmit fi lter width selection . 57 I Split frequency operation . 58 I Quick split function . 59 I

20、Measuring SWR . 60 7MEMORY OPERATION . 6167 I Memory channels . 61 I Memory channel selection . 61 I Programming a memory . 62 I Memory clearing . 62 I Selecting the call channel . 63 I Programming the call channel . 63 I Frequency transferring . 64 I Programming scan edges . 65 I Assigning memory n

21、ames . 66 I Memo pads . 67 8SCANS . 6873 I Scan types . 68 I Preparation . 68 I Voice squelch control function . 69 I Scan set mode . 69 I Programmed scan/Fine programmed scan . 70 I Memory scan operation . 71 I Select memory scan . 71 I F scan operation and Fine F scan . 72 I Tone scan/DTCS code sc

22、an operation . 73 9ANTENNA TUNER OPERATION . 7476 I Antenna connection and selection 74 I Antenna tuner operation . 75 I Optional external tuner operation . 76 10 DATA COMMUNICATION . 7779 I Connections . 77 I Packet (AFSK) operation . 78 I Adjusting the TNC output level . 79 I Data transmission spe

23、ed . 79 11 SET MODE . 8088 I General set mode . 80 I Tone control set mode . 88 12 OPTION INSTALLATION . 8990 I Opening the transceivers case . 89 I UT-102 VOICE SYNTHESIZER UNIT. 89 I CR-338 HIGH STABILITY CRYSTAL UNIT . 90 13 MAINTENANCE . 9193 I Trouble shooting . 91 I Fuse replacement . 92 I Tun

24、ing dial brake adjustment . 92 I Resetting the CPU . 93 I Frequency calibration (approximate) . 93 14 CONTROL COMMAND . 9498 I Remote jack (CI-V) information . 94 15 SPECIFICATIONS. 99 16 OPTIONS. 100 17 ABOUT CE. 101102 Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Ja

25、pan) in the United States, the United King- dom, Germany, France, Spain, Russia and/or other countries. 2001 NEW IC-7400.qxd 02.4.2 11:34 Page 3 I QUICK REFERENCE GUIDE 2001 NEW I Installation 1. Install a ground system for DC noise suppression and RFI suppression 2. Install your DC power supply 3.

26、Install lightning protection. This will help protect more than your gear. 4. Install and connect an antenna system for the ap- propriate bands of operation 5. Connect other peripheral equipment. This includes microphones, headsets, TNC, amplifiers and any other equipment necessary to make your shack

27、 complete. Although your radio will operate by connecting the DC power supply and antenna, it is necessary to have a good ground system in your shack. A ground connec- tion is the electrical contact between the common point of an electrical or electronic system and the earth. A good earth ground is

28、necessary to prevent electrical shock, eliminate problems from RFI and DC noise. With more electronic devices being used today, it is also important to reduce RFI and EMI. Although you may not see interference in your shack, without a grounding system, your neighbors may experience in- terference. E

29、ven though many of these devices, where they must accept interference from their sur- rounding environment, it is best to eliminate as much of the possible interference from your shack. If you do not have a grounding system for your shack, depending on the location of your shack, basement or ground

30、fl oor, a good ground system can be as simple as a couple of ground rods driven 2 to 2.5 meter into the soil. When installing your IC-7400 to your ground- ing system, the shortest most direct connection is rec- ommended. NOTE: There are many publications covering proper grounding techniques. Check w

31、ith your local dealer for more information and recommendations. RWARNING!: NEVERground station equip- ment or antennas to house gas lines. NEVER at- tach ground lines to plastic (pvc) pipe. DD Some Symptoms if inadequate grounding a. Poor DC Ground 50/60 Hz hum on the audio either Rx or Tx without t

32、he antenna connected. If you feel a tingling sensation when you touch a metal surface. Surfaces such as the cover of your radio or power supply. b. Poor RF Ground While transmitting and you feel a tingling sensation when you touch a metal surface. Surfaces such as the cover of your radio or power su

33、pply. While transmitting, you experience interference to other electronic devices, such as the telephone, television or stereo audio systems. The DC power supply is a device used to convert 110/220 V AC, also know as Household current, to a steady source of 13.8 V DC. The perfect match to your IC-74

34、00 is the PS-125. This compact switching power supply is the matching power supply for your IC-7400 with a current rating of 25 A continuous duty. This plug and play unit plugs into the DC jack located on the rear of the radio. If you are not using the PS-125: Connect the supplied DC power cable to

35、the appro- priate color coded terminals, then insert the DC con- nector into the DC jack located on the rear of the radio. (The diagram below describes the connection with OPC-639. OPC-025D has no fi lter box and GND cable.) NOTE: Although the power supply current require- ment is quite low during r

36、eceiving, this not the case when you transmit. With many electrical devices in the shack, it is very important to verify the electrical circuit is not overloaded. 30 A fuses AC cable Transceiver AC outlet A DC power supply* *13.8 V; at least 23 A continuous Black _ Red + to DC power socket Supplied

37、DC power cable PS-125DC power socket Transceiver DC power cable Connect to an AC outlet using the supplied AC cable. 1. Grounding your Shack 2. Installing your DC Power Supply IC-7400.qxd 02.4.2 11:35 Page I II QUICK REFERENCE GUIDE 3. Installing lightning protection Although you may not live in an

38、area with high occur- rence for lightning storms, it is always wise to take precautions for lightning or static discharges. Proper lightning protection not only offers protection to the ham gear, but the shack and most importantly the op- erator. NOTE: There are many publications covering proper lig

39、htning protection, check with your local dealer for more information and recommendations. Whether your IC-7400 is your first radio or one of many, one of your key elements in a great shack is the antenna system. There are three connections on the back of your IC-7400, two for HF and 6 m and one for

40、2 m. If you are using one antenna for HF and 6 m, for simplicity, connect the antenna coax to ANT1. Your IC-7400 is equipped with an internal antenna tuner (ATU) for operation on 1606 m. This ATU is de- signed to work with an unbalanced 50 feedline. The purpose of the internal antenna tuner is to match the impedance of your antenna system to as close to a 50 load as possible. This ATU will not operate with a long wire or ladder line (450 or other balanced feedlines). An external ATU such as the AH-4 would be necessary fo