IC-746Pro_user.pdf

《IC-746Pro_user.pdf》由会员分享，可在线阅读，更多相关《IC-746Pro_user.pdf（115页珍藏版）》请在收音机爱好者资料库上搜索。

1、2001 NEW HF/VHF ALL MODE TRANSCEIVER i746PRO INSTRUCTION MANUAL This device complies with Part 15 of the FCC rules. Operation is sub- ject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interfe

2、rence that may cause undesired operation. IC-746PRO.qxd 02.4.2 11:30 Page 1 Downloaded by? Amateur Radio Directory? ? www.hamdirectory.info 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 t

3、ime to thank you for making the IC-746PRO your radio of choice, and hope you agree with Icoms philosophy of “technology fi rst”.Many hours of research and development went into the de- sign of your IC-746PRO. Rather than completely redesigning all areas to create a new radio, the engineering team at

4、 Icom decided to follow in the footsteps of the IC-746 (one of the best value transceivers in the marketplace) with the new “PRO.” Focused on real world improvements compiled over the last few years from letters, phone calls, E- Mails and newsgroup postings, the engineering team at Icom is proud to

5、say “many of these changes were compiled from a list of suggestions from you, the ama- teur radio operator!” 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 100 Watt continuous duty cycle All mode digital mo

6、dulation 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 transceiver. SAVE THIS INSTRUCTION MANUAL.This

7、manual contains important safety and operating in- structions for the IC-746PRO. EXPLICIT DEFINITIONS PRECAUTIONS RWARNING RF EXPOSURE!This device emits Radio Frequency (RF) energy. Extreme caution should be observed when operating this device. If you have any questions regarding RF exposure and saf

8、ety standards please refer to the Federal Communications Commission Offi ce of Engineering and Technologys report on Evalu- ating Compliance with FCC Guidelines for Human Radio Frequency Electromagnetic Fields (OET Bulletin 65). RWARNING HIGH VOLTAGE! NEVERattach an antenna or internal antenna conne

9、ctor during transmis- sion. This may result in an electrical shock or 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

10、. This could cause a fi re or ruin the transceiver. RNEVERlet 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 trans

11、ceiver in areas with tem- peratures below 10C (+14F) or above +60C (+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- ronment

12、s 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, DO NOT operate the transceiver without running the vehi

13、cles engine. When the trans- ceivers power is ON and your vehicles engine 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 mobi

14、le 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 amplifi er is connected, s

15、et the transceivers RF output power to less than the linear am- plifi 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-746PRO may d

16、amage the transceiver. WORDDEFINITION RRWARNING Personal injury, fi re 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-746PRO.qxd 02.4.2 11:30 Page 2 ii SUPPLIED ACCESSORIES The tra

17、nsceiver comes with the following accessories. Qty. q DC power cable (OPC-025D) . 1 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 TABLE OF CONTENTS qw ert FOREWORD . i IMPORTANT . i EXPLICIT DEFINITIONS . i PRECAUTIONS . i TABLE OF

18、 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 2INSTALLATION AND CONNECTIONS . 13

19、17 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 . 17 I External antenna tuner connections . 17 3BASIC OPERATION . 1825 I When fi rst appl

20、ying 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 Squelch and receive (RF) sensitivity . 24 I Basic transmit operation . 25

21、4RECEIVE AND TRANSMIT . 2646 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 FOR RECEIVE . 4754 I Simple band scope . 47 I Preamp/Attenuator . 48

22、I RIT function . 48 I AGC function . 49 I IF fi lter selection . 50 I IF (DSP) fi lter shape . 51 I Noise blanker . 51 I Meter peak hold function . 51 I Twin PBT operation . 52 I Noise reduction . 53 I Notch function . 53 I Dial lock function . 53 I Voice squelch control function . 54 6FUNCTIONS FOR

23、 TRANSMIT . 5561 I VOX function . 55 I Break-in function . 56 I TX function . 57 I Monitor function . 57 I Speech compressor . 58 I Transmit fi lter width selection . 58 I Split frequency operation . 59 I Quick split function . 60 I Measuring SWR . 61 7MEMORY OPERATION . 6268 I Memory channels . 62

24、I Memory channel selection . 62 I Programming a memory . 63 I Memory clearing . 63 I Selecting the call channel . 64 I Programming the call channel . 64 I Frequency transferring . 65 I Programming scan edges . 66 I Assigning memory names . 67 I Memo pads . 68 8SCANS . 6974 I Scan types . 69 I Prepar

25、ation . 69 I Voice squelch control function . 70 I Scan set mode . 70 I Programmed scan/Fine programmed scan . 71 I Memory scan operation . 72 I Select memory scan . 72 I F scan operation and Fine F scan . 73 I Tone scan/DTCS code scan operation . 74 9ANTENNA TUNER OPERATION . 7577 I Antenna connect

26、ion and selection 75 I Antenna tuner operation . 76 I Optional external tuner operation . 77 10 DATA COMMUNICATION . 7880 I Connections . 78 I Packet (AFSK) operation . 79 I Adjusting the TNC output level . 80 I Data transmission speed . 80 11 SET MODE . 8189 I General set mode . 81 I Tone control s

27、et mode . 89 12 OPTION INSTALLATION . 9091 I Opening the transceivers case . 90 I UT-102 VOICE SYNTHESIZER UNIT. 90 I CR-338 HIGH STABILITY CRYSTAL UNIT . 91 13 MAINTENANCE . 9294 I Trouble shooting . 92 I Fuse replacement . 93 I Tuning dial brake adjustment . 93 I Resetting the CPU . 94 I Frequency

28、 calibration (approximate) . 94 14 CONTROL COMMAND . 9599 I Remote jack (CI-V) information . 95 15 SPECIFICATIONS. 100 16 OPTIONS. 101 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

29、 other countries. 2001 NEW IC-746PRO.qxd 02.4.2 11:30 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. Install lightning protection. This will help protect more than your gear. 4. Install

30、 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 complete. Although your radio will operate by connecting the DC power supply and an

31、tenna, 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 necessary to prevent electrical shock, eliminate problems from RFI and DC noise. Wit

32、h 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. Even though many of these devices are Part 15, where they must accept interference fr

33、om their surrounding 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 fl oor, a good ground system can be as simple as a couple of ground rods d

34、riven 6 to 8 feet into the soil. When installing your IC-746PRO to your ground- ing system, the shortest most direct connection is rec- ommended. NOTE: There are many publications covering proper grounding techniques. Check with your local dealer for more information and recommendations. RWARNING!:

35、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 60 Hz hum on the audio either Rx or Tx without the antenna connected. If you feel a tingling sensation when you touch a metal

36、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 supply. While transmitting, you experience interference to other electronic devi

37、ces, 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-746PRO is the PS-125. This compact switching power supply is the matching power

38、supply for your IC-746PRO with a current rat- ing 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 (OPC-025D) to the appropriate color coded terminals, then insert the DC con

39、nector into the DC jack located on the rear of the radio. NOTE: Although the power supply current require- ment is quite low during receiving, 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

40、 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 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-746PRO.qxd 02.4.2 11:30 Page I II QUICK REFERENCE GUIDE 3. Installing lightning protection Although you may not live in an area with high occur- rence for lightning storms, it is always wise to take