SRK Electronics MFTX400 Manuals

Manuals and User Guides for SRK Electronics MFTX400. We have 2 SRK Electronics MFTX400 manuals available for free PDF download: Operation And Service Manual

SRK Electronics MFTX400 Operation And Service Manual (100 pages)

50W/100W/200W/400W/600W MF AM BROADCAST TRANSMITTER

Brand: SRK Electronics | Category: Transmitter | Size: 8 MB

Table of Contents
2
Mftx Quick Start Guide
5
Overview
7
Specifications
8
Warranty
13
Unpacking
14
Installation
15
General
15
Environmental
16
Electrical Supply
17
Earthing
18
Antenna
19
Audio Feed
20
External Power Supply (MFTX600 Only)
21
External Views
22
Front Panel
22
1) Display
22
2) Control Knob
22
3) RF Sample Connector
22
4) Air Vents
22
Rear Panel
23
1) Right/Mono Audio Input Connector
23
2) Left Audio Input
23
3) RF Output Connector
23
4) Mains Input Connector
23
5) Earth Stud
23
6) Air Vent
23
7) Analogue Remote Control Barrier Strip
24
8) Serial Remote Control Connector
24
9) Heatsink
24
Transmitter Operation
25
Rf Functions
26
Set RF Power
26
Forward and Reflected Power Metering
26
Carrier Frequency
27
Carrier Reference
27
Audio Functions
29
Gain Control
29
Modulation Metering
29
Compressor
29
Limiter
29
Low Pass Filter
30
Stereo
30
Time Functions
31
Clock
31
Night-Time Power
31
Front Panel Operation
32
Summary Screen
33
Rf Menu
34
Setting Carrier Power
34
Setting Carrier Frequency
34
Turning RF on and off
35
Reading Forward and Reflected Power
35
Audio Menu
36
Setting Audio Gain
36
Reading Modulation Depth
36
Enabling and Disabling the Audio Low Pass Filter (LPF)
36
Enabling and Disabling Audio Compressor
37
Enabling and Disabling Stereo
37
Limiter Menu
38
Enabling and Disabling the Limiter
38
Setting the Positive Limit Level
38
Setting the Negative Limit Level
39
Lpf Menu
40
Setting Filter Type
40
Setting Cutoff Frequency
40
Rf Pa1 - Rf Pa6
41
Alarms
42
Date/Time Menu
43
Reading Elapsed Days
43
Setting Date and Time
43
Night Power Menu
44
Enabling and Disabling Night-Time Power Switching
44
Setting Night-Time Power Start and Stop Times
44
Setting Night-Time Power
44
Carrier Reference
45
Unit Data
46
Remote Control
47
Analogue Remote Control
48
Interlock
48
TX OK Relay
48
Audio OK Relay
48
Alarm Tally Output
49
Serial Remote Control
50
Serial Command List (Alphabetical)
50
Serial Command List (by Function)
52
Alarms
54
Swr Alarm and Flashover Alarm
55
Interlock Alarm
56
Gen Alarm
57
Temperature Alarm
58
Audio Alarm
59
Maintenance
60
Example Log Sheet
61
Adjustments
62
Pot1, Forward Power Calibration
62
Pot2, Reflected Power Threshold
62
Pot3, Reflected Power Calibration
62
Pot4, Carrier Frequency Fine Adjustment
62
Pot5, Lcd Contrast
62
Pot6, Alarm Tally Analogue Voltage Trim
62
DC Supply Adjustment
63
Directional Coupler Null
63
Circuit Description
64
Theory of Operation
64
Block Diagrams
66
MFTX50/100 Block Diagram
66
MFTX200 Block Diagram
67
MFTX400 Block Diagram
68
MFTX600 Block Diagram
69
Control Unit
70
Rf Power Amplifier
72
Output Filter
73
Abbreviations
74
Bill of Materials
76
Mftx50/100 Top Level
76
Mftx200 Top Level
77
Mftx400 Top Level
78
Mftx600 Top Level
79
Control Unit
80
Rf Power Amplifier
81
Mftx100 Output Filter
82
Mftx200 Output Filter
83
Mftx400 Output Filter
84
Mftx600 Output Filter
85
Schematics
86
Mftx100 Overall Schematic
86
Mftx200 Overall Schematic
87
Mftx400 Overall Schematic
88
Mftx600 Overall Schematic
89
Control Unit Schematic
90
Rf Power Amplifier Schematic
98
Pcb Layouts
99
Change History
100

SRK Electronics MFTX400 Operation And Service Manual (99 pages)

100W/200W/400W/600W MF AM BROADCAST TRANSMITTER

Brand: SRK Electronics | Category: Transmitter | Size: 8 MB

Table of Contents
2
1 Mftx Quick Start Guide

5
2 Overview

7
3 Specifications

8
4 Warranty

12
5 Unpacking

13
6 Installation

14
- General
  14
- Environmental
  15
- Electrical Supply
  16
- Earthing
  17
- Antenna
  18
- Audio Feed
  19
- External Power Supply (MFTX600 Only)
  20
7 External Views

21
- Front Panel
  21
  - 1) Display
    21
  - 2) Control Knob
    21
  - 3) RF Sample Connector
    21
  - 4) Air Vents
    21
- Rear Panel
  22
  - 1) Right/Mono Audio Input Connector
    22
  - 2) Left Audio Input
    22
  - 3) RF Output Connector
    22
  - 4) Mains Input Connector
    22
  - 5) Earth Stud
    22
  - 6) Air Vent
    22
  - 7) Analogue Remote Control Barrier Strip
    23
  - 8) Serial Remote Control Connector
    23
  - 9) Heatsink
    23
8 Transmitter Operation

24
- Rf Functions
  25
  - Set RF Power
    25
  - Forward and Reflected Power Metering
    25
  - Carrier Frequency
    26
  - Carrier Reference
    26
- Audio Functions
  28
  - Gain Control
    28
  - Modulation Metering
    28
  - Compressor
    28
  - Limiter
    28
  - Low Pass Filter
    29
  - Stereo
    29
- Time Functions
  30
  - Clock
    30
  - Night-Time Power
    30
9 Front Panel Operation

31
- Summary Screen
  32
- Rf Menu
  33
  - Setting Carrier Power
    33
  - Setting Carrier Frequency
    33
  - Turning RF on and off
    34
  - Reading Forward and Reflected Power
    34
- Audio Menu
  35
- Limiter Menu
  37
- Lpf Menu
  39
  - Setting Filter Type
    39
  - Setting Cutoff Frequency
    39
- Rf Pa1 - Rf Pa6
  40
- Alarms
  41
- Date/Time Menu
  42
  - Reading Elapsed Days
    42
  - Setting Date and Time
    42
- Night Power Menu
  43
- Carrier Reference
  44
- Unit Data
  45
10 Remote Control

46
- Analogue Remote Control
  47
  - Interlock
    47
  - TX OK Relay
    47
  - Audio OK Relay
    47
  - Alarm Tally Output
    48
- Serial Remote Control
  49
  - Serial Command List (Alphabetical)
    49
  - Serial Command List (by Function)
    51
11 Alarms

53
- Swr Alarm and Flashover Alarm
  54
- Interlock Alarm
  55
- Gen Alarm
  56
- Temperature Alarm
  57
- Audio Alarm
  58
12 Maintenance

59
- Example Log Sheet
  60
13 Adjustments

61
14 Circuit Description

63
- Theory of Operation
  63
- Block Diagrams
  65
  - MFTX100 Block Diagram
    65
  - MFTX200 Block Diagram
    66
  - MFTX400 Block Diagram
    67
  - MFTX600 Block Diagram
    68
- Control Unit
  69
- Rf Power Amplifier
  71
- Output Filter
  72
15 Abbreviations

73
16 Bill of Materials

75
- Mftx100 Top Level
  75
- Mftx200 Top Level
  76
- Mftx400 Top Level
  77
- Mftx600 Top Level
  78
- Control Unit
  79
- Rf Power Amplifier
  80
- Mftx100 Output Filter
  81
- Mftx200 Output Filter
  82
- Mftx400 Output Filter
  83
- Mftx600 Output Filter
  84
17 Schematics

85
- Mftx100 Overall Schematic
  85
- Mftx200 Overall Schematic
  86
- Mftx400 Overall Schematic
  87
- Mftx600 Overall Schematic
  88
- Control Unit Schematic
  89
- Rf Power Amplifier Schematic
  97
18 Pcb Layouts

98
19 Change History

99

SRK Electronics Categories

Transmitter Amplifier

More SRK Electronics Manuals

SRK Electronics MFTX400 Manuals

SRK Electronics MFTX400 Operation And Service Manual (100 pages)

Table of Contents

SRK Electronics MFTX400 Operation And Service Manual (99 pages)

Table of Contents

1 Mftx Quick Start Guide

2 Overview

3 Specifications

4 Warranty

5 Unpacking

6 Installation

7 External Views

8 Transmitter Operation

9 Front Panel Operation

10 Remote Control

11 Alarms

12 Maintenance

13 Adjustments

14 Circuit Description

15 Abbreviations

16 Bill of Materials

17 Schematics

18 Pcb Layouts

19 Change History

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