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IC-756
Инструкция по эксплуатации Страница: 1

Icom IC-756 Инструкция по эксплуатации онлайн

INSTRUCTION MANUAL

i756

HF/50 MHz

ALL MODE TRANSCEIVER

Содержание

Instruction manual 1
Explicit definitions 2
Important 2
Precautions 2
R neve 2
R warning high voltage neve 2
Read this instruction manual carefull 2
Save this instruction manual 2
Accessories included with the ic 756 qty 3
Clock and timers 51 52 3
Frequency setting 21 24 3
Important i precautions i explicit definitions i table of contents ii unpacking ii 3
Installation and connections 13 20 3
Internal views 66 3
Maintenance 63 65 3
Memory operation 41 46 3
Option installations 3
Options 68 3
Panel description 1 12 3
Q dc power cable opc 025a 1 w hand microphone hm 36 1 e spare fuses fgb 20 a 2 r spare fuse fgb 5 a 1 t cw keyer plug ap 330 1 3
Q w e r 3
Receive and transmi 3
Scans 47 50 3
Set mode 53 60 3
Specifications 67 3
Table of contents 3
Unpacking 3
I front panel 4
Panel description 4
Caution 11
Do not short pin 2 to ground as this can damage the internal 8 v regulator 11
Front panel view 11
Hm 36 schematic diagram 11
I microphone 11
Microphone connector 11
Panel description 11
Q up down switches up dn change the selected readout frequency or memory channel 11
W ptt switch push and hold to transmit release to receive 11
00 14 05 00 12
34 12 34 12
I lcd display 12
0 14 00 0 13
34 12 34 13
Agc agc mid mid 13
Ant ant 13
Att att off off 13
Comp comp off off 13
Disp disp others others time time exit exit 13
F 2 f 3 f 4 f 5 13
F fspan fspan fine fine exit exit 13
Filter scan memory set 13
Filter selection filter selection 13
I screen menu arrangement 13
K 2 k 9 2 k 2 k 455 455 13
Level level 13
Marker marker hold hold max h max h exit exit 13
Memory memory 13
Meter meter 13
Mhz 9mhz 455khz 455khz def def exit exit 13
Off off 13
P amp p amp 13
Prog prog 13
Roll roll 13
Scan scan 13
Set set mode mode 13
Set set name name select select exit exit 13
Span span 13
Usb usb 13
Vfo vfo 13
Vox vox off off 13
I rear panel 14
1 antenna connector 1 ant1 2 antenna connector 2 ant2 pgs 13 14 accept a 50 ω antenna with a pl 259 connector 15
3 ground terminal gnd pgs 13 14 connect this terminal to a ground to prevent electri cal shocks tvi bci and other problems 15
Acc 1 pin no 15
Acc 2 pin no 15
Connect it to the ant1 connector the internal antenna tuner activates for ant2 and deactivates for ant1 when connecting the ah 3 15
D acc sockets 15
Description specifications 15
Note when using an optional ah 3 15
Panel description 15
Pin name 15
I antenna 16
I grounding 16
I selecting a location 16
I unpacking 16
Installation and connections 16
R warning neve 16
Front panel 17
I required connections 17
Installation and connections 17
Rear panel 17
Acc sockets p 12 18
Ah 3 p 18 18
Antenna 1 2 pgs 17 18 connects a linear amplifier antenna selector etc 18
External speaker p 68 18
Front panel 18
Headphones 18
I advanced connections 18
Installation and connections 18
Mic the afsk modulation signal can be input from mic p 19 18
Rear panel 18
Relay alc p 17 used for connecting a non icom linear ampli fier 18
Remote pgs 20 60 used for computer control and transceive operation 18
Rx antenna 18
Before connecting the dc power cable check the following important items make sure 19
Caution 19
Connecting a non icom dc power supply 19
Connecting a vehicle battery 19
Connecting an icom dc power supply 19
Etc when operating the transceiver with ac power refer to the diagrams below 19
I power supply connections 19
Installation and connections 19
Never connect 19
To a 24 v battery 19
Use an optional ps 85 19
Caution 20
Connecting a non icom power amplifier 20
Connecting the ic 2kl 20
Connecting the ic 4kl 20
I linear ampliﬁer connections 20
Installation and connections 20
Note the speciﬁcations for the send relay are 16 v dc 2 a if this level is exceeded a large external relay must be used 20
Note turn off the transceiver s antenna tuner while tuning the ic 4kl s tuner 20
R warning 20
Use the ant1 connector when connecting a linear ampliﬁer 20
Connecting the ah 3 21
Connecting the ex 627 21
Connecting the ic at500 through the ic 2kl 21
I external antenna selector or antenna tuner connections 21
Installation and connections 21
Note the ah 3 can be used for the hf bands only although the ant1 connector is used for both hf and 50 mhz operation use a coaxial antenna switch when you operate the 50 mhz band with the ah 3 connected 21
Acc 1 socket rear panel view 22
Afsk and sstv connections 22
Afsk and sstv connections via microphone connector 22
For rtty operation the optional 250 hz cw narrow ﬁlters may not pass rtty signals be sure to select the appropriate if ﬁlters corresponding to the signal width p 28 22
Fsk rtty connection 22
I fsk and afsk sstv connections 22
Installation and connections 22
Mic connector front panel view 22
Terminal node controller tnc or scan converter 22
Terminal unit tu or terminal node controller tnc 22
To connect a terminal unit tnc or scan converter refer to the diagram below 22
Use rtty mode for operation 22
Use ssb or fm mode for operation 22
When connected to the mic connector mic gain and af control adjustment is required 22
Bcd code area 23
Bcd code frequency or memory channel data 23
Ci v connection example 23
Command number 23
Command table 23
Controller s address 23
Controller to ic 756 23
Data format 23
Description 23
End of message code 23
Fe fe 50 e0 cn sc data area 23
Fe fe e0 50 cn sc data area 23
Fe fe e0 50 fb fa fd 23
I remote jack ci v information 23
Ic 756 23
Ic 756 s address 23
Ic 756 to controller 23
Installation and connections 23
Ok code fb or ng code fa 23
Ok or ng message to controller 23
Preamble code 23
Sub command number 23
The ci v system can be operated using the following data formats data formats differ according to com mand numbers a data area or sub command is added for some commands 23
The transceiver can be connected through an optional ct 17 23
To a personal computer equipped with an rs 232c port the icom communi cation interface v ci v controls the following func tions of the transceiver 23
Up to four icom ci v transceivers or receivers can be connected to a personal computer equipped with an rs 232c port see p 60 for setting the ci v condition using set mode 23
Cpu resetting 24
Frequency setting 24
I initial settings 24
I when ﬁrst applying power 24
0 14 00 0 vfo vfo 25
0 14 23 0 vfo vfo 25
0 21 25 0 1 25
Ant ant 25
Differences between vfo mode and memory mode 25
I vfo description 25
K 2 k 9 2 k 2 k 455 455 25
Meter meter 25
Usb usb 25
Vfo vfo 25
For general coverage receiver use 26
For ham band use 26
I direct frequency entry with the keypad 26
I frequency setting with the tuning dial 26
I advanced tuning functions 27
I mode selection 28
I twin pbt operation 28
Receive and transmit 28
I auto notch function 29
I noise blanker 29
I noise reduction 29
I apf function 30
I cw pitch control 30
I cw reverse mode 30
I rtty reverse mode 30
I filter selection 31
Calculate function 32
E to reset the rit frequency push clear for 2 sec 32
E to reset the tx frequency push clear for 2 sec 32
I rit and tx 32
K 2 k 9 2 k 2 k 455 455 32
Note when rit and tx are on at the same time the rit tx control shifts both the transmit and receive frequencies from the displayed frequency at the same time 32
Practical example 32
Q push the rit switch 32
Q push the tx switch 32
R to cancel the rit function push rit again 32
R to cancel the tx function push tx again 32
Receive and transmit 32
Rit function 32
The rit function shifts the receive frequency up to 9 99 khz in 1 hz steps 10 hz steps when can celling the 1 hz step readout without moving the transmit frequency 32
The shift frequency of the rit or tx function can be added subtracted to the displayed frequency 32
The tx function shifts the transmit frequency up to 9 99 khz in 1 hz steps 10 hz steps when can celling the 1 hz step readout without moving the re ceive frequency 32
Tx function 32
Tx tx rit rit 32
Usb usb 32
Usb usb 14 00 0 14 00 0 32
Vfo vfo 32
W rotate the rit tx control 32
While displaying the rit and or tx shift frequency push rit or tx for 2 sec 32
0 14 00 0 33
0 21 90 0 33
Dual w dual w 33
Dualwatch monitors 2 frequencies with the same mode simultaneously 33
During dualwatch both frequencies should be on the same band because the bandpass ﬁlter in the rf cir cuit is selected for the main readout frequency 33
E select vfo mode for the main readout r set the desired operating frequency for the main readout 33
E set another desired frequency using the tuning dial r adjust bal to set a suitable signal strength bal ance between the main and sub readout frequen cies 33
F fspan fspan fine fine exit exit 33
F to start the pro grammed scan or f scan respectively 33
I dualwatch operation 33
I to cancel the scan push 33
K 2 k 9 2 k 2 k 455 455 33
Prog or 33
Prog prog 33
Q program the desired programmed scan edges in the same amateur band see p 43 for program ming 33
Q set a desired frequency w push dualwatch for 2 sec 33
Receive and transmit 33
Rit function can be used for the main readout only tx function can be used for the transmit readout main readout when the split function is off sub readout when the split function is on 33
Scan scan 33
Scan to select the scan screen 33
Scanning during dualwatch 33
Scanning operates only for the main readout to op erate the scan during dualwatch scan on the main readout and use the sub readout for your qso using both dualwatch and split frequency operation 33
Split split 33
T push dualwatch for 2 sec 33
T to transmit on the sub readout frequency push change or split 33
U push 33
Usb usb 33
Vfo vfo 33
W push split to turn the split frequency function on 33
Y push 33
I split frequency operation 34
0 14 00 0 35
0 21 90 0 35
Appears w rotate the tuning dial to set your receive frequency in the main readout e announce your receive frequency r after you catch one of the calling stations call signs push and hold the ptt switch to respond while pushing xfc you can monitor your transmit frequency 35
E rotate the tuning dial to set the transmit frequency or input the transmit frequency using the keypad and ent or input a shift frequency using the keypad and split 35
I quick split function 35
If the dx station says down 5 khz before you enter standby for split operation push f inp 5 then split the split function is turned on and 5 khz down fre quency is entered in the sub readout 35
K 2 k 9 2 k 2 k 455 455 35
Operation 1 35
Operation 2 35
Practical example 35
Q push split for 2 sec to standby for split operation w if the dx station says up 10 khz push 1 0 then split or rotate the tuning dial 35
Q push split momentarily and push change for 2 sec the sub readout frequency is equalized to the main readout frequency and 35
Q suppose you are operating at 21 90 mhz usb in vfo mode 35
Receive and transmit 35
Split frequency operation is turned on the sub readout is equalized to the main readout fre quency the sub readout enters standby for transmit frequency input 35
The quick split function is on by default for your con venience it can be turned off in set mode p 56 in this case the split switch does not equalize the main and sub readout frequencies 35
The transmit frequency can be monitored while push ing xfc or using dualwatch 35
This shortens the time needed to start split frequency operation 35
Usb usb 35
Vfo vfo 35
W push split for 2 sec 35
When you are searching for dx stations and you suspect that a dx station may say up x khz for their receive fre quency 35
When you push the split switch for 2 sec split fre quency operation is turned on the sub readout is equalized to the main readout frequency and enters standby for transmit frequency input 35
When you receive a pile up and you want to start split fre quency operation to simplify picking out stations 35
When you ﬁnd a dx station an important considera tion is how to set the split frequency 35
Adjusting the vox function 36
I monitor function 36
I vox function 36
Using the vox function 36
I meter function 37
I speech compressor 37
I swr reading 37
0 14 00 0 38
0 push f 2 to select the mic up down keyer item 38
1 rotate the tuning dial to turn the substitute paddle function on or off 38
2 push 38
Cw cw keyer keyer setting setting 38
Cw key to enter keyer set mode r select the dot dash ratio item using f 1 or f 2 38
Def def 38
E push 38
Edit edit cw cw key key 001 001 exit exit 38
Exit exit 38
Exit to exit keyer set mode 38
I electronic cw keyer 38
I push f 2 to select the keyer type item 38
K 2 k 9 2 k 2 k 455 455 38
Keying weight example morse code k 38
Memory memory keyer keyer 38
O rotate the tuning dial to set the electronic keyer function to electronic keyer bug key or straight key electronic keyer off 38
Q push cw to select cw mode 38
Receive and transmit 38
Send send 38
Setting the electronic keyer 38
T rotate the tuning dial to select the keying weight 38
The transceiver has an electronic keyer keying speed can be adjusted with key speed keying weight the ratio of dot space dash can be set from 1 1 2 to 1 1 4 in keyer set mode 38
U rotate the tuning dial to select the key polarity be tween normal and reverse polarity 38
Usb usb 38
Vfo vfo 38
W push keyer to select keyer set mode 38
Y push f 2 to select the paddle polarity item 38
Clearing contact numbers 39
I memory keyer 39
Programming the memory keyer 39
Setting the contact serial number 39
Transmitting memory keyer contents 39
0 14 00 0 40
0 14 95 0 40
1ß 14 00 0 14 00 0 40
Antenna switch selection example 40
E push 40
Exit exit def def 40
Exit to exit the scope screen 40
For automatic antenna selection 40
For more than 3 antennas except for receive antenna when using an external antenna tuner 40
Hold to freeze the current spectrum waveform u push 40
I band memory 40
I spectrum scope screen 40
K 2 k 9 2 k 2 k 455 455 40
Marker marker hold hold max h max h exit exit 40
Marker to select the marker or turn the marker off 40
Max h to hold peak levels or not y push 40
Others others set set 40
Q if the start up screen is not selected if f 5 s func tion is exit push f 5 one or more times to exit w push 40
R push 40
Receive and transmit 40
Scope to select the scope screen 40
Span one or more times to select the scope span 40
Span span 40
T push 40
The transceiver covers 0 60 mhz over 10 bands each band key has a band memory which can mem orize a selected antenna ant1 ant2 ant1 rx antenna and ant2 rx antenna when you change the operating frequency beyond a band the previously used antenna is automatically selected for the new band this function is convenient when you use 2 or 3 antennas 40
This function allows you to display the relative strengths of signals around the center frequency the span can be set to 12 khz 25 khz 50 khz and 100 khz ideal for monitoring band conditions in an instant 40
To use the band memory enter set mode and conﬁrm that auto is selected as the ant switch item p 58 40
Under the following condition auto should be se lected as the ant switch set mode item when you use 2 antennas 40
Under the following conditions manual should be selected as the ant switch set mode item when using 1 antenna when using the ex 627 40
Usb usb 40
Vfo vfo 40
0 29 80 0 41
A repeater ampliﬁes received signals and retransmits them at a different frequency when using a repeater the transmit frequency is shifted from the receive fre quency by an offset frequency a repeater can be ac cessed using split frequency operation with the shift frequency set to the repeater s offset frequency 41
Appear in the sub readout the transmit frequency can be monitored while push ing xfc or using dualwatch 41
E push the desired band key r push fm to select fm mode t set the receive frequency repeater output fre quency 41
Fm t fm t 41
I dial lock function 41
I repeater operation 41
K 2 k 9 2 k 2 k 455 455 41
Note for accessing a repeater which requires a subaudible tone set the subaudible tone frequency in set mode refer to p 57 41
Push lock to toggle the dial lock function on and off 41
Q set the offset frequencies hf 50 mhz and turn on the quick split function in set mode in advance w push vfo memo to select vfo mode 41
Receive and transmit 41
Subaudible tone encoder is turned on automatically shifted transmit frequency and 41
The dial lock function prevents accidental changes caused by the tuning dial the lock function electron ically locks the dial 41
The lock indicator lights when the dial lock function is in use 41
U push and hold ptt to transmit release ptt to receive i to return to simplex push split momentarily to clear the sub display 41
Usb usb 41
Y push split for 2 sec to start repeater operation 41
I antenna tuner operation 42
Ah 3 hf automatic antenna tuner 43
Ah 3 operation 43
Antenna tuner of the ic 4kl or ic 2kl ic at500 43
I optional external tuner operation 43
R warning high voltage 43
I memory channel selection 44
I memory channels 44
Memory operation 44
Using the keypad 44
Using the y z keys 44
Conﬁrming programmed memory channels 45
I memory channel screen 45
Selecting a memory channel using the memory channel screen 45
Setting a memory channel as a select memory 45
0 14 95 0 46
3 02 0 46
7 88 0 46
7 88 0 7 88 0 46
Beep beep beep 46
E push mw for 2 sec to program the displayed fre quency and operating mode into the memory channel 46
Example programming 21 80 mhz usb into memory channel 18 46
Example programming 7 88 mhz lsb into memory channel 12 46
I memory channel programming 46
K 2 k 9 2 k 2 k 455 455 46
Lsb lsb 46
Memory channel programming can be preformed ei ther in vfo mode or in memory mode 46
Memory operation 46
Programming in memory mode 46
Programming in vfo mode 46
Q select the desired memory channel with y z in memory mode 46
Q set the desired frequency and operating mode in vfo mode w push y z several times to select the desired memory channel 46
Usb usb 46
Vfo vfo 46
Vfo vfo usb usb 14 95 0 14 95 0 46
W set the desired frequency and operating mode in memory mode 46
I frequency transferring 47
Transferring in memory mode 47
Transferring in vfo mode 47
Editing programming memory names 48
I memory clearing 48
I memory names 48
Calling up a frequency from a memo pad 49
I memo pads 49
Memo pads 49
Temporary pad 49
Writing frequencies and operating modes into memo pads 49
Channels 50
I preparation 50
I scan types 50
Scan resume on off 50
Scan speed 50
Squelch condition 50
Decimal points blink while scanning 51
F to start the f scan 51
Fspan u set center frequency of the f span i push 51
I f scan operation 51
I programmed scan operation 51
K 2 k 9 2 k 2 k 455 455 51
Note if the same frequencies are programmed into the scan edge memory channel p1 and p2 programmed scan does not start 51
O when the scan detects a signal the scan stops pauses or ignores it depending on the resume set ting and the squelch condition 0 to cancel the scan push 51
Prog to start the programmed scan 51
Q if the start up screen is not selected if f 5 s func tion is exit push f 5 one or more times to exit w select vfo mode e select the desired operating mode 51
Q if the start up screen is not selected if f 5 s func tion is exit push f 5 one or more times to exit w select vfo mode or a memory channel e select the desired operating mode 51
R push 51
Scan scan 51
Scan to select the scan screen 51
See previous page for scan condition if the rf sql control function is set as rf control the squelch always opens see pgs 2 56 for details 51
T set rf sql open or closed 51
The operating mode can also be changed while scan ning 51
U when the scan detects a signal the scan stops pauses or ignores it depending on the resume set ting and the squelch condition i to cancel the scan push 51
Usb usb 51
Y push 51
Y set the f span by pushing 51
0 14 00 0 52
1ß 14 00 0 14 00 0 52
Decimal points blink while scanning 52
F to start a scan 52
F to stop the scan push 52
Fine program scan or fine f scan ap pears 52
Fine scan functions as programmed or f scan but scan speed decreases when the squelch opens and does not stop the scanning tuning step shifts from 50 hz to 10 hz while the squelch opens 52
Fine to cancel the ﬁne scan 52
Fine to start a ﬁne scan 52
I fine programmed scan ﬁne f scan 52
I memory scan operation 52
K 2 k 9 2 k 2 k 455 455 52
Memory 52
Memory to start the memory scan 52
Note 2 or more memory channels must be pro grammed for memory scan to start 52
Prog or 52
Q if the start up screen is not selected if f 5 s func tion is exit push f 5 one or more times to exit w select memory mode e select the desired operating mode 52
Q select the scan screen from the start up screen by pushing 52
R push 52
Scan scan 52
Scan to select the scan screen 52
Scan w set for programmed scan or f scan as described on previous page e push 52
See p 47 for scan condition if the rf sql control function is set as rf control the squelch always opens see pgs 2 56 for details 52
T set rf sql open or closed 52
T when the scan detects a signal the scan speed decreases but does not stop y push 52
The operating mode can also be changed while scan ning 52
U when the scan detects a signal the scan stops pauses or ignores it depending on the resume set ting and the squelch condition i to cancel the scan push 52
Usb usb 52
Vfo vfo 52
Y push 52
0 14 00 0 53
1ß 14 00 0 14 00 0 53
Decimal points blink while scanning 53
Exit to exit the scan screen 53
I select memory scan operation 53
I setting select memory channels 53
I when the scan detects a signal the scan stops pauses or ignores it depending on the resume set ting and the squelch condition o to cancel the scan push 53
K 2 k 9 2 k 2 k 455 455 53
Memory 53
Memory to start the memory scan 53
Note 2 or more memory channels must be des ignated as select memory channels for select memory scan to start 53
Note select memory channels can also be set in the memory channel screen p 42 53
Q if the start up screen is not selected if f 5 s func tion is exit push f 5 one or more times to exit w select memory mode e push 53
Q if the start up screen is not selected if f 5 s func tion is exit push f 5 one or more times to exit w select memory mode e select the desired operating mode 53
R push 53
R select the desired memory channel to set as se lect memory channel 53
S appears for select memory channels 53
Scan scan 53
Scan to select the scan screen 53
See p 47 for scan condition if the rf sql control function is set as rf control the squelch always opens see pgs 2 56 for details 53
Select again to return to memory scan if desired 53
Select to set the memory channel as a select memory or not 53
Select to start select memory scan push 53
T push 53
T set rf sql open or closed 53
The operating mode can also be changed while scan ning 53
U push 53
Usb usb 53
Vfo vfo 53
Y push 53
Y repeat steps r to t to program another memory channel as a select memory channel if desired u push 53
0 14 00 0 54
1ß 14 00 0 14 00 0 54
Clock and timers 54
Exit exit 54
I setting power on time 54
I setting the current time 54
K 2 k 9 2 k 2 k 455 455 54
Set set 54
Timer set timer set 54
Usb usb 54
Vfo vfo 54
I setting power off period 55
I timer operation 55
0 14 00 0 56
1ß 14 00 0 14 00 0 56
34 12 34 56
Def def 56
Disp disp others others time time exit exit level level 56
Display set display set 56
Exit exit 56
Filter filter scan scan memory memory set set 56
I set mode description 56
K 2 k 9 2 k 2 k 455 455 56
Level set level set 56
Others set others set 56
Scope scope 56
Set mode 56
Set mode operation 56
Set set mode mode 56
Timer set timer set 56
Usb usb 56
Vfo vfo 56
Backlight lcd 57
Backlight switches 57
Contrast lcd 57
I display set mode 57
I level set mode 57
Monitor 57
Tx tone bass 57
Tx tone treble 57
Calibration marker 58
Filter 455khz 58
Filter 9mhz 58
I miscellaneous others set mode 58
I timer set mode 58
Power off period 58
Power on timer set 58
Time now 58
Beep band edge 59
Beep confirmation 59
I miscellaneous others set mode 59
Quick dualwatch 59
Quick split 59
Rf sql control 59
Scan resume 59
Scan speed 59
Available subaudible tones 60
Continued 60
Fm split offset 50m 60
Fm split offset hf 60
Fm subaudible tone 60
I miscellaneous others set mode 60
See p 31 for split frequency operation details 60
Set mode 60
Split lock 60
The internal antenna tuner has an automatic start ca pability which starts tuning if the swr is higher than 1 3 in the hf bands 60
The offset frequency can be set from 4 mhz to 4 mhz in 1 khz steps 60
This item selects a subaudible tone for fm t mode operation to access a repeater there are 50 tones available from 67 hz to 254 hz see table at right 60
This item sets the offset difference between transmit and receive frequencies for the quick split function however this setting is used for 50 mhz band fm mode only and is used to input the repeater offset for the 50 mhz band 60
This item sets the offset difference between transmit and receive frequencies for the quick split function however this setting is used for hf bands in fm mode only and is used to input the repeater offset for an hf band 60
Tuner auto start 60
When off is selected the tuner remains off even when the swr is poor 1 3 when on is se lected automatic tune starts even when the tuner is turned off 60
When this item is on the tuning dial can be used to adjust the transmit frequency while pushing xfc even while the lock function is activated 60
Ant switch 61
I miscellaneous others set mode 61
Rtty keying polarity 61
Rtty mark freq 61
Rtty shift width 61
Tuner ptt start 61
I miscellaneous others set mode 62
Memo pad numbers 62
Mic up down speed 62
Scope during tx 62
Speech s level 62
Speech speed 62
Speech synthesizer 62
Ci v address 63
Ci v baud rate 63
Ci v transceive 63
Ci v with ic 731 63
I miscellaneous others set mode 63
Caution 64
I opening the transceiver s case 64
I ut 102 64
Option installations 64
I cr 502 65
I optional if ﬁlters 65
I troubleshooting 66
Maintenance 66
The following chart is designed to help you correct problems which are not equipment malfunctions if you are unable to locate the cause of a problem or solve it through the use of this chart contact your nearest icom dealer or service center 66
Caution 67
I clock backup battery replacement 67
I fuse replacement 67
9 99 0 68
Approximate 68
Caution 68
I frequency calibration 68
I tuning dial brake adjustment 68
Bottom view 69
Internal views 69
Top view 69
I antenna tuner 70
I general 70
I receiver 70
I transmitter 70
Specifications 70
Antenna element 71
Automatic antenna selector 71
Ci v level converter 71
Dc power supply 71
Desktop microphone 71
External speaker 71
Fl 100 fl 101 fl 223 and fl 232 71
Fl 52a fl 53a fl 222 and fl 257 71
Hand microphone 71
Hf 1 kw linear amplifier 71
Hf automatic antenna tuner 71
Ic at50 71
Khz filters 71
Mhz filters 71
Options 71
Satellite interface unit 71
Voice synthesizer unit 71
9 16 kamihigashi hirano ku osaka 547 japan 72
Count on us 72

Icom IC-756 Инструкция по эксплуатации онлайн

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