Equipment information:

Icom IC-746 Transceiver
Manufacturer:
Icom
Model: IC-746
Date: 1998
Category: Radio, Communication
Group: Transceiver
Description: HF/VHF Transceiver
Information:
                                    

These manuals are available for the above equipment:

Icom -- IC-746 -- Service Manual
File name: Icom-3241-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 128
Size: 48.54 Mbytes (50893244 Bytes)
Language: english
Revision:
Manual-ID/Number: A-5482H-S
Date: 1998
Quality: Scanned document, all readable.
Upload date:
MD5: e41e6604f974d14d5c5cb9e4d01dbe86
ed2kID: 53390259d5079499bc744a49b582fc5d
Downloads: 621 since 09 February 2012
Information:
Icom-3241-Manual-Page-1-Picture
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Icom -- IC-746 -- User Manual
File name: Icom-5431-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 90
Size: 1.98 Mbytes (2078544 Bytes)
Language: english
Revision:
Manual-ID/Number: A-5482H-1EX
Date: 1997
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: b2d506dd15471fb3ccb060b23fd80061
ed2kID: d2b6d4019935641653ea4fe311b885f9
Downloads: 260 since 26 January 2014
Information:
IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . ii
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . .
. . . . ii
EXPLICIT DEFINITIONS . . . . . . . . . . . . . . . . . . . .
. ii
BUILT-IN DSP . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . ii
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . iii
1 PANEL DESCRIPTION . . . . . . . . . . . . . . . . . . 2–7
1-1 Front panel . . . . . . . . . . . . . . . . . . . . . .
. . . . . 2
1-2 Rear panel . . . . . . . . . . . . . . . . . . . . . . .
. . . . 6
1-3 Function display . . . . . . . . . . . . . . . . . . . .
. . . 7
2 MENU SELECTION . . . . . . . . . . . . . . . . . . . . . 8–9
2-1 Menu set 1 flow chart . . . . . . . . . . . . . . . . .
. . 8
2-2 Menu set 2 flow chart . . . . . . . . . . . . . . . . .
. . 9
3 BASIC OPERATION . . . . . . . . . . . . . . . . . . 10–17
3-1 Before operating . . . . . . . . . . . . . . . . . . . .
. . 10
3-2 Squelch and receive (RF) sensitivity . . . . . . 12
3-3 Selecting VFO/memory mode . . . . . . . . . . . 13
3-4 Toggling between VFO A/B and transferring
contents . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 13
3-5 Setting a band and frequency . . . . . . . . . . . 14
3-6 Selecting an operating mode . . . . . . . . . . . . 17
4 USING DIFFERENT OPERATING MODES . 18–36
4-1 Operating SSB . . . . . . . . . . . . . . . . . . . . .
. . 18
4-2 Operating CW . . . . . . . . . . . . . . . . . . . . . .
. . 20
4-3 Operating RTTY (FSK) . . . . . . . . . . . . . . . . . 28
4-4 Operating AM . . . . . . . . . . . . . . . . . . . . . .
. . 30
4-5 Operating FM . . . . . . . . . . . . . . . . . . . . . .
. . 32
4-6 Repeater operation . . . . . . . . . . . . . . . . . . . 34
4-7 Packet operation . . . . . . . . . . . . . . . . . . . .
. . 36
5 FUNCTIONS FOR RECEIVE . . . . . . . . . . . . 37–42
5-1 Simple band scope . . . . . . . . . . . . . . . . . . . . 37
5-2 Preamp and attenuator . . . . . . . . . . . . . . . . 38
5-3 RIT function . . . . . . . . . . . . . . . . . . . . . .
. . . 38
5-4 AGC function . . . . . . . . . . . . . . . . . . . . . .
. . 39
5-5 1/4 function . . . . . . . . . . . . . . . . . . . . . .
. . . . 39
5-6 NB function . . . . . . . . . . . . . . . . . . . . . .
. . . . 39
5-7 Noise reduction . . . . . . . . . . . . . . . . . . . .
. . 40
5-8 Auto notch (ANF) function . . . . . . . . . . . . . . 40
5-9 Dial lock function . . . . . . . . . . . . . . . . . . .
. . 40
5-10 Twin PBT . . . . . . . . . . . . . . . . . . . . . . .
. . . 41
5-11 Selecting IF filters . . . . . . . . . . . . . . . . .
. . . 42
6 FUNCTIONS FOR TRANSMIT . . . . . . . . . . . 43–48
6-1 VOX function . . . . . . . . . . . . . . . . . . . . . .
. . . 43
6-2 Break-in function . . . . . . . . . . . . . . . . . . .
. . 44
6-3 :TX function . . . . . . . . . . . . . . . . . . . . . .
. . 45
6-4 Monitor function . . . . . . . . . . . . . . . . . . . .
. . 45
6-5 Speech compressor . . . . . . . . . . . . . . . . . . . 46
6-6 Split frequency operation . . . . . . . . . . . . . . . 47
6-7 Quick split function . . . . . . . . . . . . . . . . . .
. . 48
7 MEMORY CHANNELS . . . . . . . . . . . . . . . . 49–54
7-1 General . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 49
7-2 Memory channel selection . . . . . . . . . . . . . . 49
7-3 Transferring a memory to VFO . . . . . . . . . . . 50
7-4 Clearing a memory . . . . . . . . . . . . . . . . . . . . 50
7-5 Selecting the call channel . . . . . . . . . . . . . . 51
7-6 Programming a memory . . . . . . . . . . . . . . . . 51
7-7 Programming the call channel . . . . . . . . . . . 52
7-8 Programming scan edges . . . . . . . . . . . . . . 52
7-9 Assigning memory names . . . . . . . . . . . . . . 53
7-10 Memo pads . . . . . . . . . . . . . . . . . . . . . . .
. 54
8 SCAN OPERATION . . . . . . . . . . . . . . . . . . . 55–58
8-1 Scan types . . . . . . . . . . . . . . . . . . . . . . .
. . . 55
8-2 Programmed scan and
fine programmed scan . . . . . . . . . . . . . . . . . 56
8-3 Memory scan . . . . . . . . . . . . . . . . . . . . . .
. . 57
8-4 Select memory scan . . . . . . . . . . . . . . . . . . . 57
8-5 :F scan and fine :F scan . . . . . . . . . . . . . . 58
9 INTERNAL ANTENNA TUNER . . . . . . . . . . . . . 59
9-1 Before operating . . . . . . . . . . . . . . . . . . . .
. . 59
9-2 Tuner operation . . . . . . . . . . . . . . . . . . . .
. . . 59
10 SET MODE . . . . . . . . . . . . . . . . . . . . . . . .
. 60–64
10-1 Selecting set mode . . . . . . . . . . . . . . . . . . . 60
10-2 Set mode items . . . . . . . . . . . . . . . . . . . . . 60
11 ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . 65–66
11-1 Tuning dial brake . . . . . . . . . . . . . . . . . . .
. 65
11-2 Frequency calibration . . . . . . . . . . . . . . . . . 65
11-3 Measuring SWR . . . . . . . . . . . . . . . . . . . . . 66
11-4 Adjusting the LCD . . . . . . . . . . . . . . . . . . . 66
12 SETUP AND CONNECTIONS . . . . . . . . . . 67–75
12-1 Front panel . . . . . . . . . . . . . . . . . . . . . .
. . . 67
12-2 Rear panel . . . . . . . . . . . . . . . . . . . . . .
. . . 68
12-3 Selecting a location . . . . . . . . . . . . . . . . . . 69
12-4 Power supply connections . . . . . . . . . . . . . 69
12-5 Grounding . . . . . . . . . . . . . . . . . . . . . . .
. . 70
12-6 Antenna . . . . . . . . . . . . . . . . . . . . . . . .
. . . 70
12-7 Data communications . . . . . . . . . . . . . . . . . 72
12-8 RTTY connections . . . . . . . . . . . . . . . . . . . 73
12-9 Remote jack . . . . . . . . . . . . . . . . . . . . . .
. . 74
13 OPTIONAL INSTALLATIONS . . . . . . . . . . 76–80
13-1 Opening the transceiver’s case . . . . . . . . . 76
13-2 UT-102 VOICE SYNTHESIZER UNIT . . . . . . . . . 77
13-3 CR-282 HIGH STABILITY CRYSTAL UNIT . . . . . 77
13-4 Optional IF filters . . . . . . . . . . . . . . . . . .
. . 78
13-5 Linear amplifier connections . . . . . . . . . . . 79
13-6 External antenna tuner connections . . . . . . 80
14 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . 81–83
14-1 Fuse replacement . . . . . . . . . . . . . . . . . . . 81
14-2 Resetting the CPU . . . . . . . . . . . . . . . . . . . 81
14-3 Troubleshooting . . . . . . . . . . . . . . . . . . . .
. 82
15 SPECIFICATIONS AND OPTIONS . . . . . . 84–85
15-1 Specifications . . . . . . . . . . . . . . . . . . . .
. . . 84
15-2 Options . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 85
Icom-5431-Manual-Page-1-Picture
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