IC-756Pro_user.pdf

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1、INSTRUCTION MANUAL HF/50 MHz ALL MODE TRANSCEIVER i756PRO 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-756PRO.

2、EXPLICIT DEFINITIONS RWARNING HIGH VOLTAGE! NEVERattach an antenna or internal antenna connector during trans- mission.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

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

4、e the transceiver to rain, snow or any liquids. AVOID using or placing the transceiver in areas with temperatures below 10C (+14F) or above +60C (+140F). 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

5、- tended periods. 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 chil- dr

6、en. During mobile operation, 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 exhausted. Make sure the transceiver power is OFF before start- ing the vehicle.This will avoid possi

7、ble damage to the 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 operating the transceiver c

8、ontinuously for 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 micr

9、ophones have different pin assignments, and connection to the IC-756PRO may damage the transceiver. PRECAUTIONS Versions of the IC-756PRO which display the “CE” symbol on the serial number seal, comply with the European harmonised standard ETS300 684 (EMC product standard for Commercially Available

10、Amateur Radio Equipment). WORD R WARNING CAUTION NOTE DEFINITION Personal injury, fire hazard or electric shock may occur. If disregarded, inconvenience only. No risk of personal injury, fire or electric shock. Equipment damage may occur. Spurious may be received near the following frequencies. Thes

11、e 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 spectrum scope is ON), 18.433 MHz, 24.573 MHz SUPPLIED ACCESSORIES The transceiver comes with the following accessories. Qty. q DC power cable (OPC-025D) . 1 w Hand

12、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 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 . 1

13、0 I Screen menu arrangement . 11 I Rear panel . 12 3INSTALLATION AND CONNECTIONS . 1421 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

14、 I Transverter jack information . 19 I External antenna selector or antenna tuner connections . 20 I FSK and AFSK (SSTV) connections . 21 4FREQUENCY SETTING . 2225 I When fi rst applying power (CPU resetting) . 22 I Initial settings . 22 I VFO description . 23 I Frequency setting with the tuning dia

15、l . 24 I Direct frequency entry with the keypad . 24 I Advanced tuning functions . 25 5RECEIVE AND TRANSMIT . 2649 I Mode selection . 26 I Twin PBT operation . 26 I Notch function . 27 I Noise reduction . 27 I Noise blanker . 27 I RTTY fi lter/Twin peak fi lter . 28 I CW reverse mode . 28 I RTTY rev

16、erse mode . 28 I CW pitch control . 29 I IF fi 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 .

17、37 I Digital voice recorder . 38 I RTTY decoder . 41 I RTTY tuning meter . 41 I Electronic CW keyer . 42 I Memory keyer . 43 I Spectrum scope screen . 44 I Automatic antenna selection . 45 I Dial lock function . 45 I Repeater operation . 46 I Tone squelch operation . 47 I Antenna tuner operation . 4

18、8 I Optional external tuner operation . 49 6MEMORY OPERATION . 5055 I Memory channels . 50 I Memory channel selection . 50 I Memory channel screen . 51 I Memory channel programming . 52 I Frequency transferring . 53 I Memory names . 54 I Memory clearing . 54 I Memo pads . 55 7SCANS . 5661 I Scan typ

19、es . 56 I Preparation . 56 I Programmed scan operation . 57 I F scan operation . 57 I Fine programmed scan/ fi ne F scan . 58 I Memory scan operation . 58 I Select memory scan operation . 59 I Setting select memory channels . 59 I Scan set mode . 60 I Tone scan . 61 8CLOCK AND TIMERS . 6263 I Settin

20、g the current time . 62 I Setting power-on time . 62 I Setting power-off period . 63 I Timer operation . 63 9SET MODE . 6472 I Set mode description . 64 I Level set mode . 65 I Display set mode . 66 I Timer set mode . 67 I Miscellaneous (others) set mode . 68 10 OPTION INSTALLATION . 73 I Opening th

21、e transceivers case . 73 I UT-102 VOICE SYNTHESIZER UNIT. 73 11 MAINTENANCE . 7476 I Troubleshooting . 74 I Fuse replacement . 75 I Clock backup battery replacement . 75 I Tuning dial brake adjustment . 76 I Frequency calibration (approximate) . 76 12 INTERNAL VIEWS . 77 13 CONTROL COMMAND . 7879 I

22、Remote jack (CI-V) information . 78 14 SPECIFICATIONS . 80 15 OPTIONS . 81 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 convertor calibration of the DSP unit starts and it takes 10 sec. Push momentarily to toggle the

23、 timer function ON and OFF. (p. 63) The power switch lights while the timer function is ON. Push for 2 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 green when the squelch is open. e HE

24、ADPHONE 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. 42) Accepts a paddle to activate the internal electronic keyer for CW operation. Select

25、ion between the internal electronic keyer, bug-key and straight key operation can be made in keyer set mode. (p. 42) 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. 42) 4-channel memory keyer is ava

26、ilable for your conve- nience. (p. 43) t MICROPHONE CONNECTOR MIC Accepts the supplied or optional microphone. See p. 81 for appropriate microphones. See p. 9 for microphone connector information. y AF CONTROL AF (inner control) Varies the audio output level from the speaker. u MIC GAIN CONTROL MIC

27、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 level for an Icom microphone Incr

28、easesDecreases 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 POWERCOMPKEY SPEED BK-IN DELAY F-1F-2F-3F-4F-5 HF/50MHz TRANSCEIVER i756PRO SSBCW/RTTYAM/FMFILTERE

29、XIT q w e r t !2!3!4!5!6 yi!1o!0u Downloaded by? RadioAmateur.EU 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) when no signal is received. The squelch is particularly effe

30、ctive 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 squelch control (RF gain is fixed at maximum) in set mode as follows.

31、 (p. 68) 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 output power from min- imum (5 W*) to maximum (100 W*). *AM mod

32、e: 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. 27) Adjusts the noise reduction level when the noise re- duction is in use. Set for maximu

33、m readability. !2 NOISE REDUCTION SWITCH NR (p. 27) Toggles the noise reduction ON and OFF. !3 NOISE BLANKER SWITCH NB (p. 27) Toggles the noise blanker ON and OFF. The noise blanker reduces pulse-type noise such as that gen- erated by automobile ignition systems.This function cannot be used for FM,

34、 or non-pulse-type noise. !4 S/RF METER (p. 36) Shows the signal strength while receiving. Shows the relative output power, SWR, ALC or compres- sion levels while transmitting. !5 MONITOR SWITCH MONITOR (p. 35) Monitors your transmitted IF signal. The CW sidetone functions when MONITOR is OFF in CW

35、mode. !6 ANTENNA TUNER SWITCH TUNER (p. 48) Turns the antenna tuner ON and OFF (bypass) when pushed momentarily. Starts to tune the antenna manually when pushed for 2 sec. When the tuner cannot tune the antenna, the tuning circuit is bypassed automatically after 20 sec. Noise blanker OFFNoise blanke

36、r ON NBNB Noise reduction OFFNoise reduction ON NRNR BALNR Decreases OFF Increases BALNR Increases main readout gain Increases sub readout gain RF POWER IncreasesDecreases 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 lev

37、el 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 squelch threshold (FM mode) ShallowDeep S-meter squelch Noise squelch (FM mode) Noise squelch (FM mode) Squelch is open. 3 2PANEL DESCRIPTION

38、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 NBNR BALNR COMPKEY SPEED BK-IN DELAY LOCKTX RX TWIN PBT CW PITCH F-1F-2F-3F-4F-5 SPEECHLOCK RIT/TX TXRITCLEAR SPLIT MP-WMP-R DUAL

39、WATCH VFO/ MEMO MAIN/ SUB CHANGE 1.813.5273 104145186 217248289 GENE500 F-INPENT Y Z MW M-CL TS XFC EIVER i756PRO PBT CLRNOTCH NOTCH SSBCW/RTTYAM/FMFILTEREXIT 67 0!9!8!714325 89 I Front panel (continued) !7 COMPRESSION LEVEL CONTROL COMP (p. 37) Adjusts the speech compression level in SSB. !8 ELECTR

40、ONIC CW KEYER SPEED CONTROL KEY SPEED (p. 42) Adjusts the internal electronic CW keyers speed. 6 wpm (min.) to 60 wpm (max.) can be set. !9 SEMI BREAK-IN DELAY CONTROL BK-IN DELAY Adjusts the transmit-to-receive switching delay time for CW semi break-in operation. 0 MODE SWITCHES Selects the desired

41、 mode. (p. 26) Announces the selected mode when an optional UT-102 is installed. (pgs. 71, 73) Selects USB and LSB mode alternately. Toggles SSB and SSB data mode (USB- D, LSB-D) when pushed for 2 sec. Selects CW and RTTY mode alternately. Toggles CW and CW-R (CW reverse) mode when pushed for 2 sec. in CW mode. Toggles RTTY and RTTY-R (RTTY re- verse) mode when pushed for 2 sec. in RTTY mode. Selects AM and FM mode alternately. Toggles AM/FM and AM/FM data mode (AM-D, FM-D) when pushed for 2 sec. 1 LCD FU