Icom IC-735 Скачать руководство пользователя страница 43 | Manualshive

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Содержание IC-735

Страница 1: ...FeTRANSCE EP IC 715 NEIN 77111 ma 7 1111 SCAN DOWN AM MO WWI NI C1 1 UP PliONES MIC 0 ICOM INSTRUCTION MANUAL HF ALL BAND TRANSCEIVER GENERAL COVERAGE RECEIVER I C 735 Icom Inc ...

Страница 2: ...ll compact package developed by ICOM utilizing the latest computer technology and precise advanced HF engineering To fully enjoy the benefits of this high performance transceiver please study the instruction manual thoroughly prior to operation Also feel free to contact an authorized ICOM dealer if you have any questions relating to the operation of this model ...

Страница 3: ...TERY REPLACEMENT 18 4 9 FUSE REPLACEMENT 18 4 10 REAR PANEL CONNECTIONS 19 SECTION 5 SYSTEM INTERCONNECTIONS 20 5 1 LINEAR AMPLIFIER 20 5 2 ANTENNA TUNER 21 5 3 RTTY OPERATION 21 5 3 1 CONNECTIONS 22 5 3 2 FREQUENCY READOUT 22 5 4 INSTALLING OPTIONAL ELECTRONIC KEYER 23 5 5 INSTALLING OPTIONAL CW NARROW FILTER 23 5 6 ACCESSORY CONNECTORS 24 SECTION 6 OPERATING INSTRUCTIONS 25 6 1 SETTINGS 25 6 2 B...

Страница 4: ...TION 37 6 10 FILTERS 38 6 10 1 PASSBAND TUNING P B T 38 6 10 2 NOTCH FILTER 38 6 10 3 FILTER SWITCHES 38 6 11 FREQUENCY CALIBRATION 39 6 12 SWR CHECKING 39 SECTION 7 BLOCK DIAGRAM 40 SECTION 8 INSIDE VIEWS 41 8 1 MAIN UNIT SIDE 41 8 2 PL UNIT SIDE 42 8 3 ADJUSTMENT LOCATIONS 43 8 3 1 MAIN UNIT SIDE 43 8 3 2 PL UNIT SIDE 44 8 4 DISASSEMBLY DIAGRAMS 45 SECTION 9 OPTIONAL UNITS 46 SECTION 10 SCHEMATI...

Страница 5: ...Transmit Receive frequency available Frequency readout 6 digit 100Hz illuminated LCD Frequency stability Less than 200Hz from 1 minute after switch ON to 60 minutes Less than 30Hz after 1 hour at 25 C Less than 500Hz in the range of 0 C 50 C Power supply requirements 13 8V DC 15 negative ground Current drain 20A maximum at 200W input AC power supply is available for AC operation Current drain at 1...

Страница 6: ...h control Receive modes A3J J3E SSB Upper and Lower Sideband Al A1A CW A3 A3E AM F3 F3E FM Intermediate frequencies 1st SSB AM FM 70 4515MHz CW 70 4506MHz 2nd SSB AM FM 9 0115MHz CW 9 0106MHz 3rd SSB CW AM FM 455kHz Sensitivity SSB CW PRE AMP ON on 1 6 30MHz 0 1 1 6MHz Less than 1 0pV for 10dB S N 1 6 30MHz Less than 0 15pV for 10dB S N AM When selecting NARROW FILTER 0 1 1 6MHz Less than 6pV for ...

Страница 7: ...virtually eliminate spurious responses The ICOM DFM Direct Feed Mixer feeds the incoming signals directly into a high level first mixer developed by ICOM This advanced system produces a higher spurious response rejection ratio a higher receiver sensitivity and a wider dynamic range The IC 735 has a built in Passband Tuning system that allows continuous center frequency adjustment of the IF passban...

Страница 8: ...eiver or the IC HM12 scanning microphone ADVANCED REMOTE CONTROL SYSTEM Full communications with a personal computer equipped with an RS 232C jack is possible by using the serial port mounted on the rear panel of the IC 735 The computer controls frequency mode VFO A B selection and memories when an appropriate interface is used The serial port uses a standard 1200 baud data rate n OPTIONS AVAILABL...

Страница 9: ...SECTION 3 CONTROL FUNCTIONS O cc 2 O O O O O ...

Страница 10: ...tches select any one of four operating modes either SSB CW AM or FM Each push of the SSB button alternately selects USB and LSB Additionally the correct sideband USB for 10MHz and above LSB for 7MHz and below is automatically selected when the HAM switch is pushed This is explained in greater detail in item 8 Rotate this control clockwise to increase and counterclockwise to decrease the frequency ...

Страница 11: ...he MEMORY CHANNEL mode this switch activates the Selective Mode Scan so that memories programmed with one particular mode may be monitored VFO SWITCH This switch selects VFO A or VFO B for tuning purposes Each oush of this button selects one of the two VFOs alternately Push VFO button VFO A VFO B LSB I LI Zi 1 LI VFO A 0 I1 VFO EQUALIZING SWITCH A B This switch instantly matches the frequency and ...

Страница 12: ...ation into a memory channel Memory writing is possible in either the VFO or MEMORY CHANNEL modes See page 34 for information on programming the memory channels This switch operates differently depending on which mode the transceiver is in 1 In the V FO mode the frequency and mode stored in the memory channel displayed transfers to the selected VFO 2 In the MEMORY CHANNEL mode the displayed frequen...

Страница 13: ...e in the RECEIVE position This jack accepts a standard 1 4 inch headphone plug from head phones with an impedance of 4 16 ohms Stereo headphones may be used without modification Connect a suitable microphone to this jack The supplied IC HM12 hand microphone or the optional SM 8 desk microphone may be used For different microphones refer to the diagrams on page 16 FRONT VIEW AF OUTPUT EDMIC INPUT C...

Страница 14: ...e quency does change The FREQUENCY DISPLAY shows the mode and whether VFO A B a memory channel or the SCAN mode is selected in addition to the operating frequency O LSBUSBCWAM FM PR 35 n t_ t I I SCAN VFO A VFO B I SPLIT MEMO j IL O c FREQUENCY INDICATOR VFO INDICATOR MEMORY INDICATOR MODE INDICATOR TRANSMIT INDICATOR RECEIVE INDICATOR I SCAN INDICATOR Shows the operating frequency with 100Hz reso...

Страница 15: ...ontrol varies the RF output power from 10 watts to maximum SSB 100 watts PEP CW FM 100 watts AM 40 watts Slide the control upwards to increase the output power This control increases and decreases the sensitivity of the VOX circuit When operating in the CW mode semi break in or full break in operation is possible MIC GAIN CONTROL When operating in the SSB AM or FM mode adjust the control so that t...

Страница 16: ... LEC KEY MANUAL SWITCH This switch turns the VOX circuit ON and OFF The automatic T R switching VOX circuit functions in the PHONE and CW modes when the switch is IN In CW semi break in or full break in operation is possible Push this switch IN for full break in CW operation and OUT for semi break in operation The VOX SWITCH must also be IN for the BREAK IN SWITCH to operate See page 31 for more i...

Страница 17: ...ely 30mV Connect an external speaker to this jack if required Use a speaker with an impedance of 4 16 ohms and remember the built in speaker does not function when using the EXTERNAL SPEAKER JACK For CW operation connect a CW key here using the supplied standard 1 4 inch 3 conductor plug The terminal voltage from external electronic keyers must be less than 0 4 volts DC When using the IC 735 inter...

Страница 18: ... operation When using the VOX mode speaker audio may sometimes activate the transmitter accidentally Adjust the ANTI VOX CONTROL in conjunction with the VOX GAIN in the IC 735 SWITCH PANEL to eliminate this undesired T R switching In the transmit mode this switch selects one of three meter func tions 1 Po The meter indicates the relative RF output power provided the METER SWITCH in the SWITCH PANE...

Страница 19: ...s 1 inch away from the unit so as to provide space for adequate ventilation Be sure to keep the PA heatsink and the area around it clear of obstructions Also avoid locations near heater outlets air conditioners etc 3 Place the unit so that the controls and switches can easily be handled and the frequency display and meter can be seen clearly 4 For mobile installations an optional mounting bracket ...

Страница 20: ...can fully cover 3 5 to 30MHz One push of the TUNE SWITCH on the AH 2 automatically changes the IC 735 emission mode to FM and output power to 10 watts for tuning the AH 2 on the frequency The supplied IC HM12 electret condenser hand microphone or optional SM 8 desk microphone may be used Merely plug it into the MIC CONNECTOR on the front panel If you wish to use a different microphone make certain...

Страница 21: ...ember that a well maintained battery and electrical system perform better and longer Connect the AC power supply using the method described below 1 Make sure the power switch of the transceiver is OFF and the T R switch is in RECEIVE 2 Connect the DC power cord to the battery Attach the RED lead to the positive terminal and the BLACK lead to the negative terminal Reversing these connections causes...

Страница 22: ... power failures or when the unit is unplugged or turned off The usual life of the lithium battery is approximately five years After five years of use it is advisable to monitor the lithium battery carefully and replace it if there are repeated cases of display malfunction NOTE Battery replacement should be done by your nearest ICOM authorized dealer or ICOM service station 4 9 FUSE REPLACEMENT n H...

Страница 23: ... AC K 1 4 inc h key p lug is inc lu de d S T RAI G HT K E Y CO NN ECTI O N S 4 10 REAR PANEL CONNECTIONS 00 00 00 co 1 3 ci CC O E c w 9 Z j Z c i O o O 7 3 a DC POWE R SOCK ET No r ma l ly jo ine d wit h a ju mp e r ca ble w L 1 CU C 4 O o 57 C 0 O L7 c o E O co O 2rj 7 a a 4S E 0 An te nna Sw itc h co CC 0 C o c w E Z C Z 0 S 0 0 c Lr cr co to o Z J Z u a W o co E _c Z 4 REC EIV E A N T I N OU T...

Страница 24: ...IC 2KL Instruction Manual for details The connections are shown below _L EARTH GROUND DC 13 8V n USING OTHER MANUFACTURERS LINEAR AMPLIFIERS The SEND jack on the rear panel of the transceiver supplies the output from a built in keying relay for a linear amplifier The ALC jack is an input for the automatic level control signal from a linear amplifier The specification for the keying relay is DC 24 ...

Страница 25: ...e transceiver The IC 735 may also be used with the earlier IC AT100 or IC AT500 antenna tuners as shown in the diagram All three models have automatic band changing controlled by a voltage supplied from the IC 735 See page 24 for more information The AT 150 is the antenna tuner designed for use with the IC 735 transceiver Both units have matching styles and dimensions See the AT 150 instruction ma...

Страница 26: ...TOR RTTY DEMODULATOR ITU LOOP CURRENT POWER SUPPLY 60mA or 20mA LOOP TTY MACHINE Mt BREAK SWITCH SELECTOR MAGNETS AFSK GENERATOR See page 24 for ACC connector information 5 3 2 FREQUENCY READOUT ED RECEIVING TRANSMITTING 1 Place the IC 735 in the LSB mode when operating RTTY using AFSK 2 When operating in this manner there is a difference between the display frequency and the actual operating freq...

Страница 27: ...CONTROL on the switch panel of the set 1 Install the unit into the position shown in the illustration using the attached screws 2 Unplug P27 which is presently connected to J23 on the PL board See page 44 for the location and connect P27 to connector J1 P36 on the keyer unit 3 Plug the 4 pin connector P28 from the PL board into J2 P37 on the keyer unit 4 Connect an iambic paddle with a 3 conductor...

Страница 28: ... level when the SQUELCH opens The letters RECV appear on the front panel display at the same time C7 13 8V 13 8V DC output switched by the main POWER SWITCH on the front panel Connected in parallel with ACC 2 pin 7 8 ALC Input for external ALC voltage Connected in parallel with ACC 2 pin 5 ACC 2 0 8V Output reference voltage for band switching 0 GND Ground 0 SEND Same as ACC 1 BAND Output for exte...

Страница 29: ...ls and switches as indicated below 1 If a power supply other than the PS 55 is used check that the DC output voltage is 13 8 volts DC 2 Check that the antenna connector on the feedline from the antenna is securely fastened to the ANTENNA CONNECTOR on the rear panel of the IC 735 3 Check all connections between the IC 735 and accessory equip ment SWITCH CONTROL POSITION AF GAIN CONTROL 10 O CLOCK S...

Страница 30: ...s button and rotate the TUNING CONTROL to change fre quency in 1MHz steps The 100kHz 10kHz 1kHz and 100Hz digits do not change during this operation The MHz SWITCH has priority over the kHz SWITCH 3 HAM SWITCH The transceiver functions on the bands which include all HF Ham bands from 1 8MHz to 28MHz inclusive Push this button and rotate the TUNING CONTROL to select each HAM band in a continuous cy...

Страница 31: ...e mode changes alternately between USB and LSB each time the SSB button is pushed See CW OPERATION See AM OPERATION See FM OPERATION The IC 735 contains two VFOs for both receiving and transmitting The VFOs are called VFO A and VFO B and they may be selected alternately by pushing the VFO SWITCH when in the VFO mode This dual VFO system provides a great deal of operating flexibility therefore read...

Страница 32: ... Section 6 1 then continue with the following procedure 1 POWER ON 2 VFO A B SELECTION 3 MODE SELECTION 4 AF GAIN ADJUSTMENT 5 SQUELCH ADJUSTMENT Push the POWER SWITCH to turn ON the power Push the VFO SWITCH to select either VFO A or VFO B Push one of the mode switches to select the desired operating mode Adjust the AF GAIN for an appropriate audio level from the speaker Clockwise rotation increa...

Страница 33: ...age 30 for a full description of the VOX function When operating CW the transmit receive switching may be con trolled by the keying action rather than by manual operation by the operator See page 31 for a full description of CW break in The IC 735 has a squirrel cage fan installed on the PA unit for cool ing purposes A protection circuit controls the fan operation such that the fan supplies cool a...

Страница 34: ...ng into the microphone When the T R switching circuit activates stop adjusting the VOX GAIN CONTROL Speak into the micro phone in a normal voice for an accurate setting of this control 3 The VOX DELAY CONTROL varies the amount of delay before the transceiver returns to the receive mode after your speaking stops Slide this control downwards to reduce the time delay Set it at the position which allo...

Страница 35: ...lled 2 CW TRANSMITTING 1 Insert the CW key plug into the KEY JACK on the rear panel of the IC 735 2 Place the METER SWITCH in the PO position 3 Push the XMIT SWITCH to place the transceiver in the transmit mode 4 Operate the CW key and note that the meter needle moves in time with the CW sending This indicates the CW signal is trans mitting See next page for automatic keying operation 5 Adjust the...

Страница 36: ...ements within a character When used correctly the resulting CW is generally easier and more enjoyable to copy at the receiving end 1 Insert the CW key plug into the KEY JACK on the rear panel of the IC 735 2 Push the ELEC KEY SWITCH to the IN position 3 Begin sending and adjust the dual function MIC GAIN SPEED CONTROL for a suitable keying speed 4 Push the VOX SWITCH to the ON position IN 5 The tr...

Страница 37: ...CH is functional and can be used on AM 1 Push the FM MODE SELECT SWITCH to place the transceiver in the FM mode 2 Tune in an FM signal with the TUNING CONTROL using the meter to peak the signal Tune for the clearest audio 3 Set the other controls in the same way as for SSB reception Transmitting an FM signal is essentially the same as for SSB trans mission 1 Set the MIC GAIN CONTROL to the center ...

Страница 38: ... MEMORY CHANNELS IN THE VFO MODE Example Store 21 268MHz USB in MEMO CH 10 USB am 2 1 268 0VFO A Push either M CH UP or M CH DOWN SWITCH USB ME 2 1 2581 0 n VFO A tu There are twelve MEMORY CHANNELS numbered 1 through 12 available One frequency and one associated mode may be assigned to each MEMORY CHANNEL whether the transceiver is in the VFO mode or the MEMORY CHANNEL mode Remember the following...

Страница 39: ...ending which VFO was selected in step 1 The frequency display changes to indicate the frequency of MEMO CH 10 NOTE The frequency display does not change when the M VFO button is pushed if the transceiver is in the MEMORY CHANNEL mode The frequency does transfer to the VFO however and this may be con firmed by pushing the VFO SWITCH The IC 735 provides various scanning operations Read the follow in...

Страница 40: ...4 Push the SCAN SWITCH to start the scanning from the low limit 14 200MHz towards the high limit 14 300MHz The scanning rate depends on the TUNING RATE SWITCH status Normally the scanning steps are 100Hz however 1kHz steps are used if the kHz TUNING RATE SWITCH is pushed The MHz and HAM SWITCHES have no effect on the scanning rate When the scan frequency reaches the high limit 14 300MHz the scan a...

Страница 41: ... channels 2 Push the MEMO SWITCH to place the transceiver in the MEM ORY CHANNEL mode 3 Adjust the SQUELCH CONTROL to mute the audio output from the speaker 4 The MODE SCAN only stops on the channels which have the same mode as the channel from which the scan begins Therefore use the M CH UP or the M CH DOWN SWITCH to select a me mory channel which has the same mode as you wish to scan 5 Push the ...

Страница 42: ... normally be left in this position While receiving in the LSB mode narrow the bandwidth by turning the PBT CONTROL counterclockwise to eliminate interference from lower frequencies interfering signals are high pitched Turn the PBT CONTROL clockwise to eliminate interferbnce from higher frequencies interfering signals are low pitched While receiving in the USB mode the bandwidth is reduced in the o...

Страница 43: ...44 It is easiest to do this adjustment when WWV WWVH is transmitting a single audio tone 4 Turn OFF the MARKER SWITCH on the PL board This method calibrates the reference oscillator therefore it is not necessary to calibrate the IC 735 on any other frequency The IC 735 has a built in VSWR meter to check the voltage standing wave ratio of the antenna system and avoid problems caused by a mismatch b...

Страница 44: ...SECTION 7 BLOCK DIAGRAM ...

Страница 45: ... CC LO Co NI 5 5 Transm itter Ba n di IC14 AF Amp IF Q5 Tral a E 0 C E 2 s X o h cc J 8 1 MAIN UNIT SIDE aZZa E E C C U o o c a _c U a CL E LO 7 ch 5 E O U C 03 7 IL 8 2 ILN C 1 0 To Er_ LL m IC1 Secon d Mixer IC3 No ise Amp SSB CW 9 MHz Filter SECTION 8 INSIDE VIEWS ...

Страница 46: ...8 2 PL UNIT SIDE ...

Страница 47: ... Treble CW Sidetone Volume Control Receiver Audio Tone Adjustment Space for Tone Encoder Unit UT 30 for FM repeater operation J23 for UT 30 I 50W 100W Power Control Switch Space for optional CW narrow filter FL 32A or FL 63A Dim Adjustment See Side View diagram for adjustment hole 8 3 ADJUSTMENT LOCATIONS No cover removal is necessary for adjustments ...

Страница 48: ...witch ON J21 131121 C138 See section 6 11 ON OFF S2 Marker Switch 25kHz Marker Remote Control Terminal J22 J23 for Electronic Keyer P5 Open this jumper for a faster Scan Scan Speed Adjustment P4 Side View 8 3 2 PL UNIT SIDE Top View ...

Страница 49: ...n PL UNIT SIDE n 1 PL UNIT is installed underneath the PA UNIT The PA UNIT may be accessed by removing the top cover 2 MAIN UNIT is installed on bottom side of the transceiver The MAIN UNIT is visible when the bottom cover is removed n MAIN UNIT SIDE ...

Страница 50: ...0 AC POWER SUPPLY 13 8V 25A CT 17 CI V LEVEL CONVERTER SP 7 EXTERNAL SPEAKER Same height as IC 735 IC SP3 EXTERNAL SPEAKER SM 10 COMPRESSOR GRAPHIC EQUALIZER DESK TOP MICROPHONE SM 8 DESK MICROPHONE Two microphone outputs option I C SM6 DESK MICROPHONE HP 2 COMMUNICATION HEADPHONES I C MB5 MOBILE MOUNTING BRACKET n INTERNAL OPTIONS IC E X243 ELECTRONIC KEYER UNIT UT 30 88 5Hz TONE ENCODER Frequenc...

Страница 51: ...Count on us A 0649 N a Printed in Japan Copyright 1988 by corn Inc corn Inc 6 9 16 Kamihigashi Hirano ku Osaka 547 Japan ...

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