IC-756Pro2_user.pdf

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1、INSTRUCTION MANUAL HF/50 MHz ALL MODE TRANSCEIVER i756PRO 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 interference

2、that may cause undesired operation. Downloaded by? RadioAmateur.EU i IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLYbefore attempting to operate the transceiver. SAVE THIS INSTRUCTION MANUAL.This manual contains important safety and operating in- structions for the IC-756PROII. EXPLICIT DEFINITIONS

3、 RWARNING HIGH VOLTAGE! NEVERat- tach an antenna or internal antenna connector during transmission. This may result in an electrical shock or burn. RNEVERapply AC to the DC13.8V jack on the transceiver rear panel. This could cause a fi re or ruin the transceiver. RNEVERapply more than 16 V DC, such

4、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, wire or other objects touch any internal part or connectors on the rear panel of the transceiver. This may result in an electric shock. NEVERexpose the transceiver

5、 to rain, snow or any liquids. AVOID using or placing the transceiver in areas with temperatures below 10C (+14F) or above +50C (+122F). Be aware that temperatures on a vehicles dashboard can exceed 80C (+176F), resulting in per- manent damage to the transceiver if left there for ex- tended periods.

6、 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. During mobile o

7、peration, DO NOT operate the trans- ceiver without running the vehicles engine. When transceiver power is ON and your vehicles engine is OFF, the vehicles battery will soon become ex- hausted. Make sure the transceiver power is OFF before start- ing the vehicle. This will avoid possible damage to th

8、e transceiver by ignition voltage spikes. 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. BE CAREFUL! The heatsink will become hot when op- erating the transceiver continuously fo

9、r long periods. BE CAREFUL! If a linear amplifier is connected, set the transceivers RF output power to less than the lin- ear amplifi ers maximum input level, otherwise, the lin- ear amplifi er will be damaged. Use Icom microphones only (supplied or optional). Other manufacturers microphones have d

10、ifferent pin assignments, and connection to the IC-756PROII may damage the transceiver. PRECAUTIONS Spurious may be received near the following frequencies. These are made in the internal circuit and does not indicate a transceiver malfunction: 6.144 MHz, 8.000 MHz, 12.288 MHz, 12.890 MHz (when spec

11、trum scope is ON), 18.433 MHz, 24.573 MHz 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. Icom, Icom Inc. and the are registered tradema

12、rks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries. SUPPLIED ACCESSORIES The transceiver 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

13、 r Spare fuse (FGB 5 A) . 1 t CW keyer plug (AP-330) . 1 1 1 TABLE OF CONTENTS qwer t IMPORTANT . i EXPLICIT DEFINITIONS . i PRECAUTIONS . i 1TABLE OF CONTENTS . 1 2PANEL DESCRIPTION . 213 I Front panel . 2 I Microphone (HM-36) . 9 I LCD display . 10 I Screen menu arrangement . 11 I Rear panel . 12

14、3INSTALLATION AND CONNECTIONS . 1420 I Unpacking . 14 I Selecting a location . 14 I Grounding . 14 I Antenna connection . 14 I Required connections . 15 I Advanced connections . 16 I Power supply connections . 17 I Linear amplifi er connections . 18 I External antenna tuner connections . 19 I Transv

15、erter jack information . 19 I FSK and AFSK (SSTV) connections . 20 4FREQUENCY SETTING . 2124 I When fi rst applying power (CPU resetting) . 21 I Initial settings . 21 I VFO description . 22 I Frequency setting with the tuning dial . 23 I Direct frequency entry with the keypad . 23 I Advanced tuning

16、functions . 24 5RECEIVE AND TRANSMIT . 2550 I Mode selection . 25 I Twin PBT operation . 25 I Notch function . 26 I Noise reduction . 26 I Noise blanker . 27 I DSP fi lter shape . 27 I RTTY fi lter/Twin peak fi lter . 28 I CW reverse mode . 28 I RTTY reverse mode . 28 I CW pitch control . 29 I IF fi

17、 lter selection . 29 I AGC function . 30 I Dualwatch operation . 31 I Split frequency operation . 32 I Quick split function . 33 I RIT and TX . 34 I Monitor function . 35 I VOX function . 35 I Meter function . 36 I SWR reading . 36 I Speech compressor . 37 I Preamp . 37 I Digital voice recorder . 38

18、 I RTTY decoder . 42 I RTTY tuning meter . 42 I Electronic CW keyer . 43 I Memory keyer . 44 I Spectrum scope screen . 45 I Automatic antenna selection . 46 I Dial lock function . 46 I Repeater operation . 47 I Tone squelch operation . 48 I Antenna tuner operation . 49 I Optional external tuner oper

19、ation . 50 6MEMORY OPERATION . 5156 I Memory channels . 51 I Memory channel selection . 51 I Memory channel screen . 52 I Memory channel programming . 53 I Frequency transferring . 54 I Memory names . 55 I Memory clearing . 55 I Memo pads . 56 7SCANS . 5761 I Scan types . 57 I Preparation . 57 I Pro

20、grammed scan operation . 58 I F scan operation . 58 I Fine programmed scan/ fi ne F scan . 59 I Memory scan operation . 59 I Select memory scan operation . 60 I Setting select memory channels . 60 I Scan set mode . 61 I Tone scan . 61 8CLOCK AND TIMERS . 6263 I Setting the current time . 62 I Timer

21、function activity. 62 I Setting power-on time . 63 I Setting power-off period . 63 I Timer operation . 63 9SET MODE . 6473 I Set mode description . 64 I Level set mode . 65 I Display set mode . 66 I DSP fi lter set mode . 67 I Timer set mode . 68 I Miscellaneous (others) set mode . 68 10 OPTION INST

22、ALLATION . 74 I Opening the transceivers case . 74 I UT-102 VOICE SYNTHESIZER UNIT. 74 11 MAINTENANCE . 7577 I Troubleshooting . 75 I Fuse replacement . 76 I Clock backup battery replacement . 76 I Tuning dial brake adjustment . 77 I Frequency calibration (approximate). 77 12 INTERNAL VIEWS . 78 13

23、CONTROL COMMAND . 7982 I Remote jack (CI-V) information . 79 14 SPECIFICATIONS . 83 15 OPTIONS . 84 I Front panel q POWER SWITCH POWER/TIMER Push momentarily to turn power ON. Turn the optional DC power supply ON in advance. A/D converter calibration of the DSP unit starts and it takes approx. 10 se

24、c. Push momentarily to toggle the timer function ON and OFF. (p. 63) The power switch lights while the timer function is ON. Push for 1 sec. to turn power OFF. w TRANSMIT SWITCH TRANSMIT Selects transmitting or receiving. The TX indicator lights red while transmitting and the RX indicator lights gre

25、en when the squelch is open. e HEADPHONE JACK PHONES Accepts headphones. Output power: 5 mW with an 8 load. When headphones are connected, the internal speaker or connected external speaker does not function. r ELECTRONIC KEYER JACK ELEC-KEY (p. 43) Accepts a paddle to activate the internal electron

26、ic keyer for CW operation. Selection between the internal electronic keyer, bug-key and straight key operation can be made in keyer set mode. (p. 43) A straight key jack is separately available on the rear panel. See KEY on p. 12. Keyer polarity (dot and dash) can be reversed in keyer set mode. (p.

27、43) 4-channel memory keyer is available for your conve- nience. (p. 44) t MICROPHONE CONNECTOR MIC Accepts the supplied or optional microphone. See p. 84 for appropriate microphones. See p. 9 for microphone connector information. y AF CONTROL AF (inner control) Varies the audio output level from the

28、 speaker. u MIC GAIN CONTROL MIC GAIN Adjusts microphone input gain. The transmit audio tone in SSB mode can be adjusted in set mode. (p. 65) How to set the microphone gain. Set the MIC control so that the ALC meter sometimes swings during normal voice transmission in SSB mode. MIC GAIN Recommended

29、level for an Icom microphone IncreasesDecreases AFRF/SQL No audio outputMax. audio output DecreasesIncreases (dot) (com) (dash) 2 2 PANEL DESCRIPTION TIMER POWER TRANSMIT PHONES ELEC-KEY MIC TUNER MONITORNBNR AFBALNRRF/SQL MIC GAIN RF POWERCOMP BK-IN DELAY KEY SPEED F-1F-2F-3F-4F-5 HF/50MHz TRANSCEI

30、VER i756PRO SSBCW/RTTYAM/FMFILTEREXIT/SET q w e r t !2!3!4!5!6 yi!1o!0u Downloaded by? RadioAmateur.EU 2 3 PANEL DESCRIPTION i RF GAIN CONTROL/SQUELCH CONTROL RF/SQL (outer control) Adjusts the RF gain and squelch threshold level. The squelch removes noise output from the speaker (closed condition)

31、when no signal is re- ceived. The squelch is particularly effective for FM. It is also available for other modes. 12 to 1 oclock position is recommended for any setting of the RF/SQL control. The control can be set as Auto (RF gain control in SSB, CW and RTTY; squelch control in AM and FM) or squelc

32、h control (RF gain is fixed at maximum) in set mode as follows. (p. 69) When setting as RF gain/squelch control While rotating the RF gain control, noise may be heard. This comes from the DSP unit and does not indicate an equipment malfunction. o RF POWER CONTROL RF POWER Continuously varies the RF

33、output power from min- imum (5 W*)to maximum (100 W*). *AM mode: 5 W to 40 W !0 BALANCE CONTROL BAL (inner control; p. 31) Adjusts the audio output balance between main and sub readout frequencies while in dualwatch. !1 NOISE REDUCTION LEVEL CONTROL NR (outer control; p. 26) Adjusts the noise reduct

34、ion level when the noise re- duction is in use. Set for maximum readability. !2 NOISE REDUCTION SWITCH NR (p. 26) Switches the noise reduction ON and OFF. !3 NOISE BLANKER SWITCH NB (p. 27) Switches the noise blanker ON and OFF when pushed. The noise blanker reduces pulse-type noise such as that gen

35、erated by automobile igni- tion systems. This function cannot be used for FM, or non-pulse-type noise. Enters the noise blanker level set mode when pushed for 1 sec. !4 S/RF METER (p. 36) Shows the signal strength while receiving. Shows the relative output power, SWR, ALC or compres- sion levels whi

36、le transmitting. !5 MONITOR SWITCH MONITOR (p. 35) Monitors your transmitted IF signal. The CW sidetone functions when MONITOR is OFF in CW mode. !6 ANTENNA TUNER SWITCH TUNER (p. 49) Turns the antenna tuner ON and OFF (bypass) when pushed momentarily. Starts to tune the antenna manually when pushed

37、 for 1 sec. When the tuner cannot tune the antenna, the tuning circuit is bypassed automatically after 20 sec. Noise blanker OFFNoise blanker ON NBNB Noise reduction OFFNoise reduction ON NRNR BALNR Decreases OFF Increases BALNR Increases main readout gain Increases sub readout gain RF POWER Increas

38、esDecreases MODE SSB, CW RTTY AM, FM AUTO RF GAIN SQL SQL SET MODE SETTING SQL SQL RF GAIN + SQL RF GAIN + SQL RF GAIN + SQL Recommended level Minimum RF gain Adjustable range RF gain adjustable range Maximum RF gain Maximum RF gain Squelch is open. S-meter squelch S-meter squelch threshold Noise sq

39、uelch threshold (FM mode) ShallowDeep S-meter squelch Noise squelch (FM mode) Noise squelch (FM mode) Squelch is open. When functioning as RF gain control (Squelch is fi xed open; SSB, CW, RTTY only) When functioning as squelch control (RF gain is fi xed at maximum.) 4 2PANEL DESCRIPTION I Front pan

40、el (continued) !7COMPRESSION LEVEL CONTROL COMP (p. 37) Adjusts the speech compression level in SSB. !8SEMI BREAK-IN DELAY CONTROL BK-IN DELAY Adjusts the transmit-to-receive switching delay time for CW semi break-in operation. !9 ELECTRONIC CW KEYER SPEED CONTROL KEY SPEED (p. 43) Adjusts the inter

41、nal electronic CW keyers speed. 6 wpm (min.) to 60 wpm (max.) can be set. 0 MODE SWITCHES Selects the desired mode. (p. 25) Announces the selected mode when an optional UT-102 is installed. (pgs. 71, 74) Selects USB and LSB mode alternately. Selects SSB data mode (USB-D, LSB-D) when pushed for 1 sec. in SSB mode. Selects CW and RTTY mode alternately. Switches CW and CW-R (CW reverse) mode when pushed for 1 sec. in