Hitachi EC702HP Manuals

Manuals and User Guides for Hitachi EC702HP. We have 2 Hitachi EC702HP manuals available for free PDF download: Operation Manual

Hitachi EC702HP Operation Manual

Hitachi EC702HP Operation Manual (138 pages)

700W UHF 8VSB-ATSC Transmitter

Brand: Hitachi | Category: Transmitter | Size: 5.18 MB

Table of Contents

Table of Contents
6
Basic Knowledge Required
8
Purpose of this Manual
8
Section 1 - Introduction
8
Structure
8
General Description
9
- Transmitter's Control System
  10
- E-Compact ATSC Transmitters Models
  13
- Composition
  13
- Block Diagram of the System
  14
- Functional Description of the System
  15
  - ATSC Digital Exciter
    15
  - Coaxial Relay (Optional Dual Excitation)
    21
  - Power Splitter
    21
  - UHF Power Amplification System
    21
  - Power Combiner
    24
  - Loads Bank
    24
  - Filtering System
    25
  - RF Sampling Probe
    25
  - Power Supplies
    25
  - Electrical Distribution Drawer (MCCB)
    26
  - Cooling System
    26
  - Technical Specification - E-Compact TV ATSC Transmitters
    27
Photo - EC701HP Tansmitter
28
Introduction
30
Minimum Requirements
30
- Electric Power
  30
- Grounding
  30
- Stability
  30
- Insulation
  31
Section 2 - Minimum Installation
30
Atmospheric Discharge Protection System
33
- Lightning Arresters
  33
- Cable Protectors
  33
Air Conditioning
34
- Temperature
  34
- Humidity
  34
- Cooling
  34
- Section 3 - Installation
  38
Inspection
38
Installation Recommendations
38
- Preventive Protection
  38
- Tower
  39
- Fastening of Cables, Antennas and
  39
- Equipment Installation Indoors
  41
- Equipment Grounding
  41
- Electric Installation Grounding
  42
- Power Supply
  42
Introduction
38
Mechanical Drawings
43
- Front View
  43
- Rear View
  44
- Isometric View
  45
- Dimensions (MM)
  46
- Top View
  47
Front Panel
48
- Digital Exciter
  48
- Power Drawer
  51
- Top Panel
  54
Power Network Connections
55
- Power Feeding Options
  55
- AC Power Cable Connections
  55
- On Site Physical Assembly
  56
- Assembly Instructions
  56
- Connections
  58
- Internal Connections
  58
- External Connections
  63
- Section 4 - Initial Activation
  66
Introduction
66
Connections and Final Checks
74
- Possible Operations with the Transmitter in Operation
  74
- Communication
  74
- Serial Terminal Emulators
  75
- Forbidden Operations
  75
- Safeguards
  75
Automatic Power Reduction Table
76
Digital Exciter - the Master Control Unit
77
- Keypad
  78
- Display
  78
- Signaling
  78
Introduction
77
- Front Panel
  77
Section 5 - System Operation Manual
77
Flowcharts Screens
79
- Presentation and Main Options
  79
- Setup Menu
  80
- Measurements
  84
- System Alarms / Log
  86
- Remote Access
  87
- Options
  88
Setup Menu
89
- Power Setup
  91
- Transmitter Setup
  91
- Image Frenquency Suppression
  92
- LO Adjustment (lo Leakage Suppression)
  94
- Active / De-Active Pre-Correction
  94
- Modulation Settings
  96
- Time and Date Configuration
  97
- Password
  97
- Transport Stream Input
  98
- Alarms Mask
  99
- USB Setup
  99
- USB Host Access Setup
  100
- Crest Factor Reduction
  100
- Clock Reference
  101
- Restore Web Password to Default
  103
- Transistor Bias Adjustment
  103
- PA Temperature Control
  105
Start up
89
Measurements Menu
106
- Power
  108
- Transport Stream
  108
- RF Power Drawer Measurements
  109
- Exciter Power Supply
  112
- Communication Among RF Drawers
  112
- Software/Hardware Version
  113
- Automatic Level Control
  114
- Clock Measurements
  115
- Power Supply Voltages
  116
Alarm System
116
- Current Alarms
  116
- Alarm Log
  117
- Drawers Alarms
  118
- Clear Past Alarms
  119
Remote Management System (Telesupervision)
123
- IP Configuration
  123
- Mask Configuration
  124
- Gateway Configuration
  124
- Host Address Configuration
  124
Options
126
Introduction
128
Preventive / Corrective Maintenance
128
Preventive Maintenance
128
- Quiescent Currents Automatic Adjustment Procedure
  132
Corrective Maintenance
133
- Visual Identification of Alarms (Leds)
  133
- Measurements Readings
  133
- Power Drawer Air Filter
  134
- Power Drawer Fan Replacement
  136

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Hitachi EC702HP Operation Manual

Hitachi EC702HP Operation Manual (150 pages)

1.4 kW UHF 8VSB-ATSC Transmitter

Brand: Hitachi | Category: Transmitter | Size: 5.36 MB

Table of Contents

Table of Contents
6
Basic Knowledge Required
8
Purpose of this Manual
8
Section 1 - Introduction
8
Structure
8
General Description
9
Power Splitter
21
- UHF Power Amplification System
  21
- Power Combiner
  24
- Loads Bank
  24
- Filtering System
  25
- RF Sampling Probe
  25
- Power Supplies
  25
- Electrical Distribution Drawer (MCCB)
  26
- Cooling System
  26
Technical Specification - E-Compact TV ATSC Transmitters
27
Photo - EC702HP Tansmitter
28
- Section 2 - Minimum Installation
  30
  - Requirements
    30
Introduction
30
Minimum Requirements
30
- Electric Power
  30
- Grounding
  30
- Stability
  30
- Insulation
  31
- Wire Gage
  33
Atmospheric Discharge Protection System
33
- Lightning Arresters
  33
- Cable Protectors
  34
Air Conditioning
34
- Temperature
  34
- Humidity
  34
- Cooling
  35
- Section 3 - Installation
  36
- Introduction
  36
Inspection
36
Installation Recommendations
36
- Preventive Protection
  36
- Tower
  37
- Fastening of Cables, Antennas and Connectors
  37
- Equipment Installation Indoors
  39
- Equipment Grounding
  39
- Electric Installation Grounding
  40
- Power Supply
  40
Mechanical Drawings
41
- Front View
  41
- Rear View
  42
- Side View
  43
- Dimensions (MM)
  44
Front Panel
46
- Digital Exciter
  46
- Power Drawer
  49
- Rejection Loads Drawer
  51
- AC Unit Panel
  52
- Top Panel
  53
Power Network Connections
54
- Power Feeding Options
  54
- AC Power Cable Connections
  54
- Unpacking
  58
- On Site Physicalassembly
  68
- Assembly Instructions
  68
- Connections
  70
- Internal Connections
  70
- External Connections
  77
- Section 4 - Initial Activation
  80
Introduction
80
Connections and Final Checks
88
Possible Operations with the Transmitter in Operation
88
- Communication
  88
- Serial Terminal Emulators
  89
- Forbidden Operations
  89
- Safeguards
  89
Automatic Power Reduction Table
90
Digital Exciter - the Master Control Unit
91
- Keypad
  92
- Display
  92
- Signaling
  92
- Options
  93
Introduction
91
- Front Panel
  91
Flowcharts Screens
93
- Presentation and Main Options
  93
- Setup Menu
  93
- Measurements
  93
- System Alarms/Log
  93
- Remote Access
  93
- Options
  102
Setup Menu
103
- Power Setup
  105
- Transmitter Setup
  105
- LO Adjustment (lo Leakage Suppression)
  108
- Active / De-Active Pre-Correction
  108
- Modulation Settings
  110
- Time and Date Configuration
  111
- Password
  111
- Transport Stream Input
  112
- Alarms Mask
  113
- USB Setup
  113
- USB Host Access Setup
  114
- Crest Factor Reduction
  114
- Clock Reference
  115
- Restore Web Password to Default
  117
- Transistor Aging Adjustment
  117
- Patemperature Control
  119
Start up
103
Measurements Menu
120
- Power
  122
- Transport Stream
  122
- RF Power Drawer Measurements
  123
- Exciter Power Supply
  126
- Communication Among RF Drawers
  126
- Software/Hardware Version
  127
- Automatic Level Control
  128
- Clock Measurements
  129
- Power Supply Voltages
  130
Alarm System
130
- Current Alarms
  130
- Alarm Log
  131
- Drawers Alarms
  132
- Clear Past Alarms
  133

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