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IC-740
ICOM IC-740 Manuals
Manuals and User Guides for ICOM IC-740. We have
1
ICOM IC-740 manual available for free PDF download: Insrtuction Manual
ICOM IC-740 Insrtuction Manual (39 pages)
HF ALL BAND TRANSCEIVER
Brand:
ICOM
| Category:
Transceiver
| Size: 4.06 MB
Table of Contents
Table of Contents
2
Specifications
3
Features
4
Installation
5
Unpacking
5
Recommendations for Installation
5
Power Supply
5
Antenna
6
Ground
6
Microphone
6
CW Key
6
Headphones
7
Cooling Fan
7
Operating Controls
8
Front Panel
8
VOX Switch
8
VOX Gain/Keyer Speed Control
8
T/R Switch
9
MIC Connector
9
Phones Jack
9
Band Switch
9
Tuning Control Knob
10
Tuning Rate Switches
10
Dial Lock Switch
10
Incremental Tuning Control
10
Top Cover
11
Rear Panel Connections
11
Pass-Band Shift Control
11
Filter Switch
11
Receiver Antenna Output Terminal
12
T/R Control Terminal
12
RTTY Keying Terminal
12
Memory Backup Terminal
12
How to Tune
13
Frequency Display on each Mode
13
VFO Switch
14
Split Switch
15
Rit
15
Xit
15
Memory/Vfo Write Button
15
SSB Operation
16
Noise Blanker
16
Automatic Gain Control
16
Memory-Reading
16
Notch Filter
17
Transmitting
17
How to Use the Speech Processor
18
How to Use the Vox Circuit
18
Monitor
18
CW Operation
18
RTTY Operation
19
CW Side-Tone (Monitor)
19
Semi Break-In Operation
19
Receiving
19
FM Operation
20
Other Operations
20
WWV Reception
20
Simple Frequency Alignment
21
Receive Antenna Terminals
21
Transceiver Connection
21
Linear Amplifier Connection
21
Circuit Description
22
Low-Pass Filter Unit
22
RF Unit
22
IF Unit
23
Main Unit
23
PA Unit
24
Logic Unit
24
Display Unit
24
PLL Unit
25
HPL Unit
25
VCO Unit
25
Inside Views
26
Top View
26
Bottom View
27
Option Installation
30
Installation of Optional Filter
30
Installation of FL-45/FL-54
30
Installation of FL-44
31
Marker Unit IC-EX241
31
Assembly Procedure
31
Calibration of the Marker
32
Calibration of the Transceiver
32
FM Unit IC-EX242
32
Electronic Keyer Unit IC-EX243
32
Built-In Power Supply Unit
33
Other Options
35
Troubleshooting
36
Block Diagram
37
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