Hitachi EC702HP User manual

Operation Manual
1.4kW UHF 8VSB-ATSC Transmitter
EC702HP
Rodovia BR 459 - KM 121, 121A - Córrego Raso - 37540-000 - Santa Rita do Sapucaí - MG - Brasil
Tel: [phone] - Fax: [phone] | [e-mail] - www.hitachi-linear.com.br

W AR N I N G
All rights reserved. No part of this manual may be reproduced or transmitted in any
form, by any means (electronic, photocopying, recording or otherwise) without the prior
permission of the publisher, except where permitted by law.

Hitachi Kokusai LinearEquipamentosEletrônicosS/A
TECHNICAL ASSISTANCE
In our Quality Management System, since several devices are received without proper identification and explanations; we
are now working with previous approval for maintenance devolution.
Therefore, in case of maintenance please contact:
Hitachi Kokusai Linear Equipamentos Eletrônicos S/A
Phone: [phone] / Fax: [phone] E-mail: [e-mail]
And inform: Client Name, Equipment Part Number, Serial Number and a brief explanation of the occurrence.
With this intel we shall send the ARM number (Authorization for Return of Material), which is mandatory to appear in the
invoice.
WARRANTY
1. All equipment shall have warranty coverage of the supplier against manufacturing or assembly faults conducted by the
supplier, for the period of 12 months, counting from the issuing of the sales invoice. The period is irrevocable except in cases
of extended warranty previously noted in contract.
2. During warranty time, the supplier will repair, with noadditional charge, thefaulty products, providing adjustments, replacing
or re-manufacturing, of all the equipment or its modules and components that present unusual behavior;
2.1. The repaired/replaced products are covered for an additional period of 3 (three) months or uptothe end of the original
warranty time, taking into count the longer period;
2.2. If the additional 3 (three) months term, referred above, is higher than the original warranty term, the warranty will only
extend to the repaired/replaced modules or components;
2.3. The warranty will become effective in the supplier’s factory, therefore it’s not a responsibility of the supplier: the
shipment of any modules, components or any other equipment or accessory. These expenses will be, when due, a
responsibility of the Purchaser.
2.4. The Purchaser may choose a visit of the supplier’s technical personnel , instead of submitting the goods for factory
repair, although the expenses relative to transportation, lodge and nourishment of the supplier’s technicians will occur at
sole expense of the Purchaser, upon budget approval.
3. The supplier is relieved of the warranty terms in the here in aftersituations:
3.1. Faults or defects caused by AC Mains variation, atmospheric phenomena or accidental;
3.2. Faults or defects caused by inadequate installation of the goods, not complying with the OPERATING MANUAL(S)
or caused by negligence of the minimum infrastructure requirements in the installation site, which is referred in the ANNEX
1 herein attached.
3.3. Faults or defects caused by inadequate usage of the products, not complying with the OPERATING MANUAL(S) or
by lack of proper preventive maintenance recommended in the product’s manual.
3.4. In event of the goods and its accessories are submitted to 3rd Party maintenance, unauthorized by the supplier, as
well as removal or violation of its serial number.
4. The supplier shall employ, during warranty term, original parts and components listed by the product’s manufacturer.
5. The technical assistance must be held by the SUPPLIER or its accredited personnel or companies, failing which will result
in warranty voidance.

Hitachi Kokusai LinearEquipamentosEletrônicosS/A
WARNING
MANDATORY CONDITIONS FOR
TRANSMITTER INSTALATION, FOR
VALIDATING THE WARRANTYTERMS
1. Propergrounding;
2. Properlightning-rod;
3. Shelter with ventilation, foot-print, and
temperature in compliance with thetransmitter’s
standards.
4. Voltage regulator in compliance withtransmitter’s
consumption.
Noncompliance with any of above-mentioned terms
will automatically result in the suspension of the
warranty terms.

Hitachi Kokusai LinearEquipamentosEletrônicosS/A
ANNEX I
TOPIC
MINIMUM INFRASTRUCTURE REQUIREMENTS
AC MAINS
GROUNDING
The grounding system,to which Hitachi Kokusai Linear’ TV transmitter will be attached, mustbe designed andimplementedby trainedprofessionals. An
improper groundingsystemmayputatrisk, notjust theequipmentbutthelife of theprofessionals working in the shelter. To beconsideredproper, the
groundingmusthavearesistanceof nomorethan5 
STABILITY
Itis importantto haveisolation between energystationsof theshelter and theTV transmitter, which is achieved with the usage of isolator transformers.
Thus is guaranteed that noAC Mains’ transient comingfrom theshelter will be passedonto the TV transmitter or vice-versa. Besides, Hitachi Kokusai
Linear’ TV transmitterfeaturesswitching powersupplies thatrequire purely sinusoidalpower input,and voltage regulators or no-breakswithout isolator
transformers havenoassurance of a purely sinusoidal outputs. The isolator transformer must also be exclusive to the TV transmitter andits dimensioning
mustuse the same standards employedin the dimensioningof the voltageregulator or no-break, ie, atleast 30%higher than the TV transmitter’s specified
consumption(inKVA).
INSULATION
Itis importantto haveisolation between energystationsof theshelter and theTV transmitter, which is achieved with the usage of isolator transformers.
Thus is guaranteed that noAC Mains’ transient comingfrom theshelter will be passedonto the TV transmitter or vice-versa. Besides, Hitachi Kokusai
Linear’ TV transmitterfeaturesswitching powersupplies thatrequire purely sinusoidalpower input,and voltage regulators or no-breakswithout isolator
transformers havenoassurance of a purely sinusoidal outputs. The isolator transformer must also be exclusive to the TV transmitter andits dimensioning
mustuse the same standards employedin the dimensioningof the voltageregulator or no-break, ie, atleast 30%higher than the TV transmitter’s specified
consumption(inKVA).
WIRE GAUGE
EC701HP
EC702HP
EC703HP
EC704HP
EC706HP
EC708HP
2.8 kVA
5.5kVA
8.3kVA
11kVA
16.5kVA
22kVA
Current
Gauge
(mm2)
Current
Gauge
(mm2)
Current
Gauge
(mm2)
Current
Gauge
(mm2)
Current
Gauge
(mm2)
Current
Gauge
(mm2)
M220
P+N+G
1 phase with neutral : 220Vac between phase and neutral
13
1.5
25
6
38
10
50
16
75
35
100
50
B220
2P+G
2 phases, without neutral: 220Vac between phases
13
1.5
25
6
38
10
50
16
75
35
100
50
T220
3P+G
3 phases, without neutral: 220Vac between phases
13
1.5
23
4
23
4
34
10
45
10
68
25
T380
3P+N+G
3 phases with neutral: 380Vac between phases, 220Vac
between phase and neutral
13
1.5
13
1.5
13
1.5
26
6
26
6
39
10
(*) (*) (*)
(*) Due to the number of amplifiers not bemultiple of 3, the current is not equal to the3 phases (unbalanced system).
The current quoted in the table is more loaded phase to sizing effect of conductors and protection.
Said gauge is theminimum recommended for the transmitter in question, if the cable length is large, consider voltagedrop in the cablemaximum of 5%
The section of the neutral conductor should be the same phase.
The section of the ground conductor may be 10% of the phase conductors, not being less than1mm2.
The settings on the green background with table arethe recommended settings for eachtransmitter model.
ADPS
LIGHTNING ROD
The Atmospheric Discharge Protection System –ADPS is comprised by thelightning rod and its accessories. The tower and shelter mustbe protected
againstAtmospheric Discharges, througha FRANKLIN lightning rod, dimensioned andinstalled by the USER, following the criteria definedby NBR 5419
(inits latestversion) and includingall thestation installations within theprotection zonedefinedintheLevelI electro-geometric modelof rolling spheres.
PROTECTORS
The usage of coaxialprotectorsis advisablefor cables which connectinternal and external equipments (antennas, microwave heads, tower converters).
These shields are devicesfeaturinggas-sparklers thatshort-circuit to theground, any surges dischargedin thecoaxialcables. Must bewithin the shelter,
closetothe equipmentandwithits ground wire boundintheequipment’s rack ground.
CLIMATE CONTROL
TEMPERATURE
For bestperformanceand longer lifetime of theequipment,it is importantthatthe shelter featuresa strictclimatecontrol, through theinstallation of anair-
conditioning system. For project purposes, consider the thermaldissipation specified to the transmitter (BTU/h), the thermaldissipation of theother devices
in theshelter, the thermalchargecause by solar incidence and all other thermalcharges within theshelter. It is recommended thattheinternalpressure of
the shelter is slightly positive, avoiding the entranceof outsidecontaminants. According to thetransmission power, the internal temperatureof theshelter
shouldbe:
•LOW POWER E-COMPACT TV TRANSMITTERS: from 0 to 35ºC
•MEDIUM POWER E-COMPACT TV TRANSMITTERS: from 0 to 30ºC
•HIGH POWER E-COMPACT TV TRANSMITTERS: from 0 to25ºC
In theeventof damagecausedby inefficient or improper Climate Control Systems within theshelter, will automatically result in the suspensionof the
warranty terms.
HUMIDITY
The relative humidity within theshelter is a solely importantfactor for best performance and longer lifetime of the equipment. Hitachi Kokusai Linear’
devices mustoperatein dry environments; this is also achieved by proper Climate Control Systems. In accordance with transmission power, therelative
humidity mustbe:
•LOW POWER E-COMPACT TV TRANSMITTERS: from 0 to 90%
•HIGH POWER ANDMEDIUM POWER E-COMPACT TV TRANSMITTERS: from 0 to 80%
Should never be condensation, as water may damage internal circuitry of the transmitter.

1
Section 1 - Introduction
Indice
Section 3 - Installation
1.1 Purpose ofthisManual ................................................1-1
1.2 Basic Knowledge Required .........................................1-1
1.3 Structure..................................................................................1-1
1.4 GeneralDescription.....................................................1-2
1.4.1 Transmitter’s Control System ..........................1-3
1.4.2 E-Compact ATSC Transmitters Models...........1-6
1.4.3 Composition.....................................................1-6
1.4.4 Block Diagram of the System...........................1-7
1.4.5 Functional Description of the System..............1-8
1.4.5.1 ATSC Digital Exciter.............................1-8
1.4.5.2 Coaxial Relay (Optional Dual Excitation)
............................................................................... 1-14
3.1
Introduction .......................................................3-1
3.2 Inspection..........................................................3-1
3.3 Installation Recommendations ..........................3-1
3.3.1 PreventiveProtection .............................3-1
3.3.2 Tower..............................................................3-2
3.3.3 Fastening of cables, antennas and
connectors........................................................3-2
3.3.4 Equipment Installation Indoors ..............3-4
3.3.5 Equipment Grounding........................... 3-4
3.3.6 Electric Installation Grounding ...............3-5
3.3.7 PowerSupply.........................................3-5
3.4 Mechanical Drawings ........................................3-6
1.4.5.10 Electrical Distribution Drawer (MCCB)
.............................................................................. 1-19
1.4.5.11 Cooling System...................................1-19
1.5 Technical Specification - E-Compact TV ATSC
Transmitters .....................................................1-20
1.6 Photo - EC702HP Tansmitter................................1-21
Section 2 - Minimum Installation
Requirements
2.1 Introduction..................................................................2-1
2.2 Minimum Requirements...............................................2-1
2.2.1 Electric Power....................................................2-1
2.2.1.1 Grounding .......................................................2-1
2.2.1.2 Stability......................................................................2-1
2.2.1.3 Insulation........................................................2-2
2.2.1.4 WireGage ......................................................2-4
2.3 Atmospheric Discharge Protection System .................2-4
2.3.1 LightningArresters ............................................2-4
2.3.2 CableProtectors................................................2-5
2.4 Air Conditioning............................................................2-5
2.4.1 Temperature...............................................................2-5
2.4.2 Humidity............................................................2-5
2.4.3 Cooling............................................................. 2-6
3.5.2 PowerDrawer.......................................3-14
3.5.3 Rejection Loads Drawer ....................... 3-16
3.5.4 AC UnitPanel........................................ 3-17
3.5.5 TopPanel...............................................3-18
3.6 Power Network Connections............................ 3-19
3.6.1 Power Feeding Options ........................3-19
3.6.2 AC Power Cable Connections.............3-19
3.7 UNPACKING..............................................................3-23
3.8 ONSITE PHYSICALASSEMBLY ..................... 3-33
3.8.1 Assembly Instructions........................... 3-33
3.8.2 Connections ......................................... 3-35
3.8.2.1 Internal Connections.............................3-35
3.8.2.2 External Connections............................3-42
Section 4 - Initial Activation
4.1 Introduction .......................................................4-1
4.2 Connections and Final Checks .........................4-9
4.3 Possible operations with the Transmitter in
Operation ..........................................................4-9
4.3.1 Communication ....................................4-9
4.3.2 Serial terminal Emulators ......................4-10
4.3.3 Forbidden operations.............................4-10
4.3.4 Safeguards .............................................4-10
4.4 Automatic Power reduction Table........................ 4-11
1.4.5.3 Power Splitter .......................................
1-14
3.4.1
Front View ............................................. 3-6
1.4.5.4 UHF Power Amplification System ....
1-14
3.4.2
Rear View......................................................3-7
1.4.5.5PowerCombiner.................................
1-17
3.4.3
Side View.......................................................3-8
1.4.5.6 Loads Bank ..........................................
1-17
3.4.4
Dimensions (mm)..................................3-9
1.4.5.7 Filtering System ...................................
1-18
3.4.5
Top view with filter........................................3-10
1.4.5.8RF SamplingProbe............................
1-18
3.5
Front
Panel.......................................................3-11
1.4.5.9PowerSupplies...................................
1-18
3.5.1
DigitalExciter.........................................3-11

2
Section 5 - System Operation Manual
5.1 Introduction............................................................. 5-1
5.1.1 FrontPanel ................................................. 5-1
5.2 Digital Exciter - The Master Control Unit ................ 5-1
5.2.1 Keypad.................................................................5-2
5.2.2 Display.................................................................. 5-2
5.2.3 Signaling............................................................... 5-2
5.3 Flowcharts Screens................................................ 5-3
5.3.1 Presentation and Main Options .................. 5-3
5.8 Remote Management System (Telesupervision) 5-47
5.8.1 IPConfiguration............................................5-47
5.8.2 Mask Configuration ......................................5-48
5.8.3 GatewayConfiguration.................................5-48
5.8.4 Host Address Configuration.........................5-48
5.9 Options....................................................................5-50
Section 6 -
5.4 Startup....................................................................5-13
5.5 Setup Menu .............................................................5-13
5.5.1 PowerSetup.................................................5-15
5.5.2 TransmitterSetup .........................................5-15
5.5.3 Image Frenquency Suppression..................5-16
5.5.4 LO Adjustment (LO Leakage Suppression)
.......................................................................... 5-18
5.5.5 Active / De-active Pre-Correction..................5-18
5.5.6 Modulation Settings......................................5-20
5.5.7 Time anddate configuration.........................5-21
5.5.8 Password .....................................................5-21
5.5.9 Transport Stream Input.................................5-22
5.5.10 AlarmsMask.................................................5-23
5.5.11 USB Setup ...................................................5-23
5.5.12 USB HostAccess Setup ...............................5-24
5.5.13 CrestFactor Reduction.................................5-24
5.5.14 Clock Reference ..........................................5-25
5.5.15 RestoreWeb Password toDefault................5-27
5.5.16 TransistorAgingAdjustment.........................5-27
5.5.17 PATemperatureControl ................................5-29
5.6 MeasurementsMenu................................................5-30
5.6.1 Power ..........................................................5-32
5.6.2 Transport Stream.................................................5-32
5.6.3 RF Power Drawer Measurements ................5-33
5.6.4 ExciterPower Supply....................................5-36
5.6.5 Communication among RF drawers.............5-36
5.6.6 Software/Hardware Version..........................5-37
5.6.7 Automatic LevelControl................................5-38
5.6.8 Clock Measurements ...................................5-39
5.6.9 Power Supply Voltages.......................................5-40
5.7 AlarmSystem.....................................................................5-40
5.7.1 CurrentAlarms..............................................5-40
5.7.2 AlarmLog.....................................................5-41
5.7.3 DrawersAlarms............................................5-42
5.7.4 ClearPastAlarms .........................................5-43
6.2.1 Cleaning.......................................................6-1
6.2.2 VisualInspection ..........................................6-2
6.2.3 Reading Verification .................................... 6-2
5.3.2
Setup Menu ...................................................
5-4
5.3.3
Measurements ............................................
5-8
Preventive Maintenance
5.3.4
System Alarms / Log ....................................
5-10
5.3.5
Remote Access ............................................
5-11
6.1
Introduction ................................................................
6-1
5.3.6
Options ...........................................................
5-12
6.2
Preventive Maintenance ..........................................
6-1

Section 1- Introduction (UHF Digital TV Transmitters)
E-Compact -Air Cooling -ATSC- High Power
Manual Rev. 0.0 - April 2016
1-1
Section 1
Introduction
1.1 Purpose of thisManual
The purpose of this manual is to provide the technical information required for the installation
and operation of transmitters in UHF TV signals (digital ATSC) in the E-Compact series.
HitachiKokusai Linear Electronic Equipment S/A recommendsthat you carefullyread thesections
of thismanual beforeinstalling or operating this equipment.
1.2 Basic Knowledge Required
Follow the necessary knowledge and skills to operate the equipment under:
• Knowledge of electronic circuits of Radio Frequency;
• Knowledge of electricity and electricalsystems;
• Knowledge of digitalelectronics;
• Conducting tests and Digital TV signals measures inATSC standard;
• Knowledge of radiant systems;
• Conducting tests and measures of RadioFrequency;
• Practicein themanagement of radio frequency measures equipment (spectrum Analyzer, RF
power meter, Vector NetworkAnalyzer, couplers, attenuators, etc).
1.3 Structure
This manual is divided into seven (7) sections, which provide the following information:
Section 1 - Introduction
Thissectionprovidesgeneral overview,models, functionaldescriptionand technical specifications
for all models of transmitters ATSC of the E-Compactseries.
Section 2 - Installation Requirements
This section describes the criteria of the minimum requirements of the infrastructure for the
equipment installation, suchas: electricalpower system,lightning protection andairconditioning.
Section 3 - Installation
This section provides the procedures for physical and electrical wiring of the TV transmitter.
1

Section 1- Introduction (UHF Digital TV Transmitters)
E-Compact -Air Cooling -ATSC- High Power
Manual Rev. 0.0 - April 2016
1-2
EC701HP
EC702HP
EC703HP
EC704HP
EC706HP
EC708HP
Images for illustrative purpose
Section 4 - Initial Activation
This section describes which steps to be performed in the initial activation of the equipment.
Section 5 –Operation of the Control System
Information of navigation and Operation using the front keypad as well as identifications and
functions of all controls and indicators of the outer panel.
Section 6 –Preventive Maintenance
Provides information for preventive maintenance.
1.4 General Description
This section contains a general description of the ATSC TV transmitters of the E-Compact
series.Includedinthissectionarethefunctional descriptionof power drawers and digital exciter,
block diagrams and technical specifications of thesystem.
Figure 1-1 Front View ATSC Transmitters

Section 1- Introduction (UHF Digital TV Transmitters)
E-Compact -Air Cooling -ATSC- High Power
Manual Rev. 0.0 - April 2016
1-3
HP transmitters Family (High Power) has high efficiency and high power density.
Thehigh´s power line consists of refrigerated air transmitters with output powers of 700W up to
8.5kW (after filter) toATSCstandard.
Theintelligent digitalmanagement system usingmicrocontrollers, allowscontrol and monitoring
in real time of all transmitter functions. All operation is performed through keypad and digital
display both located on the front panel, through which we have access to all readings, alarms
and settings.
The RF amplification system iscomprises by a splitter, power drawers in parallel, each with its
own power supply and independent supervision and isolated combiner.
Main Features:
Management of all equipment functions and power drawers across the front display.
High Efficiency providing low power consumption.
Doherty amplifier technology with LDMOS HighVoltage transistors
Compact Design.
Amplifierwithquickcouplingconnection (HotSwap),facilitatinginstallation andmaintenance.
Digital automatic Pre-correction automatic (linear and nonlinear)
Control of the transmitter integrated tothe exciter.
Userinterface through display allows monitoring and configuration of the equipment.
Software for measuring measures the main parameters of the transmitter without the need
for expensive equipment and specific.
WEB and SNMP interface for remote management.
Option of automatic redundancy in excitation (optional).
GPS receiver forinternal time base(optional)
Power supplies with power factorcorrection.
Power protection reflected with gradual reduction of the direct power control (foldback).
Start withInrush.
Combiners and isolated splitters, allowing removal and insertion of drawers with the
connected equipment (provided that thedrawer isturned off).
1.4.1 Transmitter’s Control System
Control Architecture for Hitachi Kokusai Linear’ Transmitters:
HitachiKokusaiLinear’s transmitter control system allowscontrol and monitoring, through front
display, all parameters of the equipment.
Thissystemiscomprisedbyacontrolunit(exciter’s integratedfunction)whichthroughaRS485/
MODBUS network, gather and sends information tothe power drawers.