Hitachi EC701HP User manual

700W UHF 8VSB-ATSC Transmitter
EC701HP
Operation Manual
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 A R 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.

HitachiKokusai LinearEquipamentosEletrônicosS/A
TECHNICAL ASSISTANCE
WARRANTY
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 KokusaiLinear 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.
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 no additional charge, the faulty 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 additionalperiod of 3 (three) months or up to the 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 after situations:
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.

HitachiKokusai LinearEquipamentosEletrônicosS/A
MANDATORYCONDITIONS FOR
TRANSMITTER INSTALATION, FOR
VALIDATING THE WARRANTY TERMS
1. Propergrounding;
2. Properlightning-rod;
3. Shelter with ventilation, foot-print, and
temperature in compliance with the transmitter’s
standards.
4. Voltage regulator in compliance with transmitter’s
consumption.
Noncompliance with any of above-mentioned terms
will automatically result in the suspension of the
warranty terms.
WARNING

HIGH POWER E-COMPACT TV TRANSMITTERS: from 0 to 25
MEDIUM POWER E-COMPACT TV TRANSMITTERS: from 0 to 30
ºC
LOW POWER E-COMPACT TV TRANSMITTERS: from 0 to 35
HIGH POWER AND MEDIUM POWER E-COMPACT TV TRANSMITTERS: from0 to 80%
LOW POWER E-COMPACT TV TRANSMITTERS: from 0 to 90%
HitachiKokusai LinearEquipamentosEletrônicosS/A
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
(*) (*) (*)
2.8 kVA 5.5kVA 8.3kVA 11kVA 16.5kVA 22kVA
EC708HPEC701HP EC702HP EC703HP EC704HP EC706HP
TOPIC
The grounding system, to which Hitachi Kokusai Linear’ TV transmitter will be attached, must be designed and implemented by trained professionals. An
improper grounding system may put at risk, not just the equipment but the life of the professionals working in the shelter. To be considered proper, the
groundingmust havea resistanceofno more than 5 .
GROUNDING
AC MAINS
It is important to have isolation between energy stations of the shelter and the TV transmitter, which is achieved with the usage of isolator transformers.
Thus is guaranteed that no AC Mains’ transient coming from the shelter will be passed on to the TV transmitter or vice-versa. Besides, Hitachi Kokusai
Linear’ TV transmitter features switching power supplies that require purely sinusoidal power input, and voltage regulators or no-breaks without isolator
transformers have no assurance of a purely sinusoidal outputs. The isolator transformer must also be exclusive to the TV transmitter and its dimensioning
must use thesame standards employedin the dimensioningof thevoltage regulator or no-break,ie, at least 30% higher thanthe TVtransmitter’s specified
consumption(in KVA).
It is important to have isolation between energy stations of the shelter and the TV transmitter, which is achieved with the usage of isolator transformers.
Thus is guaranteed that no AC Mains’ transient coming from the shelter will be passed on to the TV transmitter or vice-versa. Besides, Hitachi Kokusai
Linear’ TV transmitter features switching power supplies that require purely sinusoidal power input, and voltage regulators or no-breaks without isolator
transformers have no assurance of a purely sinusoidal outputs. The isolator transformer must also be exclusive to the TV transmitter and its dimensioning
must use thesame standards employedin the dimensioningof thevoltage regulator or no-break,ie, at least 30% higher thanthe TVtransmitter’s specified
consumption(in KVA).
STABILITYINSULATION
WIRE GAUGE
MINIMUM INFRASTRUCTURE REQUIREMENTS
The Atmospheric Discharge Protection System – ADPS is comprised by the lightning rod and its accessories. The tower and shelter must be protected
against Atmospheric Discharges, through a FRANKLIN lightning rod, dimensioned and installed by the USER, following the criteria defined by NBR 5419
(in its latest version) and including all thestation installations within theprotectionzonedefinedinthe Level I electro-geometric model ofrolling spheres.
The usage of coaxial protectors is advisable for cables which connect internal and external equipments (antennas, microwave heads, tower converters).
These shields are devices featuring gas-sparklers that short-circuit to the ground, any surges discharged in the coaxial cables. Must be within the shelter,
closetothe equipment and withits groundwire boundin the equipment’s rack ground.
LIGHTNING ROD
ADPS
TEMPERATUREHUMIDITY
The relative humidity within the shelter is a solely important factor for best performance and longer lifetime of the equipment. Hitachi Kokusai Linear’
devices must operate in dry environments; this is also achieved by proper Climate Control Systems. In accordance with transmission power, the relative
humidity must be:
Shouldnever be condensation,as water may damage internal circuitry of thetransmitter.
CLIMATE CONTROL
PROTECTORS
ANNEX I
(*) Due to the number of amplifiers not be multiple of 3, the current is not equal to the 3 phases (unbalanced system).
The current quoted in the table is more loaded phase to sizing effect of conductors and protection.
Said gauge is the minimum recommended for the transmitter in question, ifthe cable lengthis large, consider voltage drop in the cable maximum of 5%
The section ofthe neutral conductor should be the same phase.
The section ofthe ground conductor may be 10% of the phase conductors, not being less than 1mm2.
The settings onthe green background with table are the recommended settings for each transmitter model.
For best performance andlonger lifetime of theequipment, it is important that theshelter features astrict climatecontrol, through theinstallationof an air-
conditioning system. For project purposes, consider the thermal dissipationspecifiedto thetransmitter (BTU/h), thethermal dissipation of the other devices
in theshelter, the thermal charge cause by solar incidence and all other thermal charges within theshelter. Itis recommended that theinternal pressure of
the shelter is slightly positive, avoidingtheentranceofoutsidecontaminants. According to thetransmission power, theinternal temperature oftheshelter
should be:
In the event of damage caused by inefficient or improper Climate Control Systems within the shelter, will automatically result in the suspension of the
warranty terms.
•
•
•
•
•
ºC
ºC

Top view ............................................... 3-10
External Connections ............................ 3-26
Photo - EC701HP Tansmitter ......................... 1-21
1
Indice
Section 1 - Introduction
1.1 Purposeof thisManual................................................ 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
1.4.5.3 Power Splitter....................................... 1-14
1.4.5.4 UHF Power Amplification System .... 1-14
1.4.5.5 Power Combiner................................. 1-17
1.4.5.6 LoadsBank .......................................... 1-17
1.4.5.7 Filtering System ................................... 1-18
1.4.5.8 RF Sampling Probe ............................ 1-18
1.4.5.9 Power Supplies................................... 1-18
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
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
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 ................................................ 2-4
2.4 AirConditioning .............................................................. 2-5
2.4.1 Temperature....................................................... 2-5
2.4.2 Humidity.............................................................. 2-5
2.4.3 Cooling............................................................... 2-5
3.7.2.2Internal Connections ............................. 3-21
Connections............................................3-21
Assembly Instructions ........................... 3-19
On Site Physical Assembly ............................... 3-19
AC Power Cable Connections .......... 3-18
Power Feeding Options ........................ 3-18
Power Network Connections ........................... 3-18
TopPanel................................................ 3-173.5.3
Section 3 - Installation
3.1 Introduction...........................................................3-1
3.2 Inspection .............................................................3-1
3.3 Installation Recommendations ....................... 3-1
3.3.1 Preventive Protection ............................ 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 MechanicalDrawings.......................................... 3-6
3.4.1 FrontView................................................ 3-6
3.4.2 Rear View................................................. 3-7
3.4.3 Isometric view ......................................... 3-8
3.4.4 Dimensions (mm) .................................. 3-9
3.4.5
3.5 FrontPanel.......................................................... 3-11
3.5.1 DigitalExciter.......................................... 3-11
3.5.2 PowerDrawer ........................................ 3-14
3.6
3.6.1
3.6.2
3.7
3.7.1
3.7.2
3.7.2.1

Transistor BiasAdjustment........................ 5-27
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
5.3.2 Setup Menu ................................................... 5-4
5.3.3 Measurements ............................................ 5-8
5.3.4 SystemAlarms / Log .................................... 5-10
5.3.5 RemoteAccess............................................ 5-11
5.3.6 Options........................................................... 5-12
5.4 Startup ....................................................................... 5-13
5.5 SetupMenu............................................................... 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 ModulationSettings..................................... 5-20
5.5.7 Time and date configuration ...................... 5-21
5.5.8 Password...................................................... 5-21
5.5.9 TransportStream Input ................................ 5-22
5.5.10 AlarmsMask.................................................. 5-23
5.5.11 USBSetup..................................................... 5-23
5.5.12 USB HostAccess Setup ............................. 5-24
5.5.13 CrestFactorReduction............................... 5-24
5.5.14 Clock Reference.......................................... 5-25
5.5.15 Restore Web Password to Default............ 5-27
5.5.16
5.5.17 PATemperatureControl.............................. 5-29
5.6 MeasurementsMenu.............................................. 5-30
5.6.1 Power............................................................ 5-32
5.6.2 TransportStream......................................... 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/HardwareVersion ....................... 5-37
5.6.7 Automatic LevelControl.............................. 5-38
5.6.8 ClockMeasurements.................................. 5-39
5.6.9 PowerSupplyVoltages............................... 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
5.8 Remote Management System (Telesupervision) 5-47
5.8.1 IPConfiguration ........................................... 5-47
5.8.2 MaskConfiguration ..................................... 5-48
5.8.3 GatewayConfiguration ............................... 5-48
5.8.4 Host Address Configuration ...................... 5-48
5.9 Options ...................................................................... 5-50
Section 6 -
Preventive / Corrective Maintenance
6.1 Introduction................................................................. 6-1
6.2 Preventive Maintenance.......................................... 6-1
6.2.1 Quiescent currents Automatic adjustment
procedure.................................................................. 6-5
6.3 CorrectiveMaintenance ........................................... 6-6
6.3.1 Visual identification of alarms (leds) ....... 6-6
6.3.2 Measurements readings ........................... 6-6
6.3.3 Power DrawerAir Filter ............................... 6-7
6.3.4 Power Drawer Fan Replacement ............. 6-9

This manual is divided into six (6) sections, which provide the following information:
Manual Rev. 0.1 - February 2018 1-1
Section 1 - Introduction (UHF Digital TV Transmitters)
E-Compact - Air Cooling -ATSC - High Power
Section 1
Introduction 1
1.1 Purpose of this Manual
The purpose of this manual is to provide the technical information required for the installation
and operation of transmitters in UHF TV signals (digitalATSC) in the E-Compact series.
HitachiKokusaiLinearElectronicEquipmentS/Arecommendsthatyou carefullyreadthesections
of thismanual before installing oroperating 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 electrical systems;
• Knowledge of digital electronics;
• Conducting tests and Digital TV signals measures inATSC standard;
• Knowledge of radiant systems;
• Conducting tests and measures of Radio Frequency;
• Practice in the management of radio frequency measures equipment(spectrumAnalyzer, RF
power meter, Vector NetworkAnalyzer, couplers, attenuators, etc).
1.3 Structure
Section 1 - Introduction
Thissectionprovidesgeneraloverview,models,functionaldescriptionandtechnicalspecifications
for all models of transmitters ATSC of the E-Compact series.
Section 2 - Installation Requirements
This section describes the criteria of the minimum requirements of the infrastructure for the
equipmentinstallation,suchas:electricalpowersystem,lightningprotection andairconditioning.
Section 3 - Installation
This section provides the procedures for physical and electrical wiring of the TV transmitter.

Provides informationfor preventive / corrective maintenance.
Preventive / Corrective Maintenance
1-2
Section 1 - Introduction (UHF Digital TV Transmitters)
E-Compact - Air Cooling -ATSC - High Power
This section contains a general description of the ATSC TV transmitters of the E-Compact
series. Included in thissection are thefunctional description of powerdrawersanddigital exciter,
block diagrams and technical specifications of the system.
1.4 General Description
Figure1-1 Front ViewATSCTransmitters
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 –
Manual Rev. 0.1 - February 2018
EC701HP
EC704HP
EC703HP
EC702HP
EC708HP
EC706HP EC712HP
Image for illustrative purpose
8RU 25RU 40RU 2x 40RU

1-3
Section 1 - Introduction (UHF Digital TV Transmitters)
E-Compact - Air Cooling -ATSC - High Power
HP transmitters Family (High Power) has high efficiency and high power density.
The high´spower line consists of refrigerated air transmitters with output powers of 700W up to
8.5kW (after filter) toATSC standard.
The intelligent digitalmanagement system using microcontrollers,allows controland 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 is comprises by a splitter, power drawers in parallel, each with its
own power supply and independent supervision and isolated combiner.
1.4.1 Transmitter’s Control System
Control Architecture for Hitachi Kokusai Linear’ Transmitters:
Hitachi Kokusai Linear’stransmitter controlsystemallowscontrol and monitoring,through front
display, all parameters of the equipment.
Thissystemiscomprised bya controlunit(exciter’s integrated function)whichthrougha RS485/
MODBUS network, gather and sends information to the power drawers.
Main Features:
Management of all equipment functions and power drawers across the front display.
High Efficiency providing low power consumption.
Doherty amplifiertechnology with LDMOS High Voltage transistors
Compact Design.
Amplifierwithquickcouplingconnection(HotSwap),facilitatinginstallationandmaintenance.
Digital automatic Pre-correction automatic (linear and nonlinear)
Control of the transmitter integrated to the exciter.
Userinterface through display allows monitoring and configurationof 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 automaticredundancy inexcitation (optional).
GPS receiver for internal time base (optional)
Power supplies with power factor correction.
Power protection reflected with gradual reduction of the direct power control (foldback).
Start with Inrush.
Combiners and isolated splitters, allowing removal and insertion of drawers with the
connected equipment (provided that the draweris turned off).
Manual Rev. 0.1 - February 2018