YAESU FT-840 Manuals

YAESU FT-840 Manuals

Manuals and User Guides for YAESU FT-840. We have 3 YAESU FT-840 manuals available for free PDF download: Service Manual, Operating Manual

Yaesu FT-840 Service Manual

Yaesu FT-840 Service Manual (152 pages)

Brand: Yaesu | Category: Transceiver | Size: 35.84 MB

Table of Contents

Table of Contents
2
Alignment
11
MAIN Unit
25
LOCAL Unit
48
DDS-1 Unit
61
OSC Unit
69
REG Unit
71
Displayunit
75
LPF Unit
81
PA Unit
87
VR-A/-B/-C/-D Unit
91
SW-A/-B/-C/-D Unit
97
MIC Unit
99
PHONE Unit
101
Exploded View & Miscellaneous Parts
103
FM Unit-747 (Option)
109
YH-77ST Lightweight Headphones (Option)
149

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Yaesu FT-840 Service Manual

Yaesu FT-840 Service Manual (166 pages)

Brand: Yaesu | Category: Transceiver | Size: 8.06 MB

YAESU FT-840 Operating Manual

YAESU FT-840 Operating Manual (48 pages)

Brand: YAESU | Category: Transceiver | Size: 5.1 MB

Table of Contents

Front Panel Controls & Connectors
2
Rear Panel
5
Front Panel LCD
6
Meter Functions
7
General Description
8
Specifications
9
Accessories & Options
10
FC-10 Compact External Auto-Antenna Tuner
10
FC-800 Automatic Antenna Tuner
10
TCXO-4 Master Reference Oscillator
10
SP-6 Loudspeaker with Audio Filters
11
YH-77ST Lightweight Headphones
11
FM Unit-747
11
FIF-232 CAT System Interface
11
Microphones
12
Station Installation
14
Preliminary Inspection
14
AC Power Supply
14
Changing the AC Voltage Range of the FP-800 Power Supply
14
Adjusting the Front Panel Angle
15
Mobile Power Connection
15
Grounding
15
Transceiver Location
15
Mobile Mounting
16
Memory Backup
16
Mobile Antenna Installation
16
Interconnection of Accessories
16
Connector Pinouts
17
Connecting External Accessories
18
FL-7000 Linear Amplifier
18
Other Non-QSK Linear Amplifier
18
Connecting a Linear Amplifier
19
Linear AMP T/R Switching in the FT-840
19
Power-Up Customization & Button Combination Settings
20
Operation
22
Getting Started Tutorial
22
Ham Bands
22
Blanking the 10'S-Of-Hz Digit
22
General Coverage Reception
23
Tuning & Scanning Steps
23
Halving the Tuning Rate
23
Shortwave Broadcast Bands
23
Dealing with Interference
24
Noise Blanker Setting
24
IF Shift Adjustment
24
Locking the Dial or Buttons
24
Transmitting
25
Button Beeper Settings
25
Automatic Antenna Matching
25
SSB Operation
26
Microphone Tone Selection
26
AF Speech Compressor
26
CW Operation
27
Reverse CW Sideband
27
CW Pitch and Sidetone Monitor
27
CW Key Connections
27
AM Transmission
28
FM Transmission
28
FM Repeater Operation
28
Carrier Offset Display
28
Clarifier
29
VFO B & Split Frequency Operation
29
Clarifier Range & Display Options
29
Tuning Knob Torque Adjustment
30
Memory Features
30
Memory Storage
31
Checking Memory Contents
31
Panel & Microphone Down/Up Key Functions
31
Frequency Display Modes
32
Memory Recall & Operation
32
Memory Channel Display
32
Scanning Features
33
Memory Scanning
33
Scan Resume
33
Memory Channel Organization
33
Scanning Feature Summary
34
Group Scan
34
Memory Scan Skip
34
PMS Scanning
35
Scan Speed
35
Memory Blanking
35
Digital Modes
36
Terminal Unit/Tnc Interconnections
36
Transmitter Adjustment
37
Frequency Display & Tuning
37
Packet TNC & RTTY/AMTOR Terminal Unit Interconnections
37
1200-Band FM Packet
38
AMTOR & F1 Packet Operation with the YF-112C 500-Hz Filter Option
38
Computer-Generated RFI
39
Installing Internal Accessories
40
Top Cover Removal
40
Filter & FM-Unit Installation
40
TCXO-4 Enhanced-Stability Oscillator
40
Lithium Battery Replacement & Memory Back-Up Switch
41
TCXO-4 Installation
41
CAT System Computer Control
42
Data Returned from FT-840
42
Status Update Data Organization
42
CAT Commands
43
All 1941 Bytes of Status Update Data (Sent L to R)
44
Status Update Data Selection
45
Read Flags Data
45
Read Meter Data
45
Coding Examples
45
Reading Returned Data
46

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