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Comark EXACT-V2 User Manual

High end rack modulator/exciter
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MPD-1611291-A

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  • Page 1 Document Reference: MPD-1611291-A...
  • Page 2 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 2/94 MPD-1611291-A...

  • Page 3: Table Of Contents

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Table of Content 1 System Overview General overview ................11 Block diagram ................12 2 Features Summary Features Overview ................ 15 Input Stream Interfaces ..............17 2.2.1 ASI/SMPTE Inputs ................. 17 Input Stream Management ............
  • Page 4 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.5.8 Digital precorrection ..............60 3.5.9 Power level measurement inputs and AGC ........61 3.5.10 Dry contacts ................61 Conformity with EC Directive ............62 4 EXACT-V2 Installation Unpack the Unit ................65 Installation and Recommendations ..........
  • Page 5 Content warning This document contains preliminary information about some of the products in the Hitachi-Comark family. Hitachi-Comark maintains the right to make changes to the documentation at any time without prior notice in order to improve, design and supply the best possible product.
  • Page 6 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter About this manual  Intended audience This user manual has been written for those who have to use, configure and install the product. Some chapters require some prerequisite knowledge in electronics and especially in broadcast technologies and standards.
  • Page 7 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter  Associated publications The reader of this document could improve their understanding of the product and its effective use by reading the following documents: ATSC standards A/53, A/54 [A1] http://www.atsc.org/standards.html DVB Measurements ETSI TR 101 290 v1.2.1...
  • Page 8 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 8/94 MPD-1611291-A...

  • Page 9: System Overview

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter System Overview 3/10/2017 Page 9/94 MPD-1611291-A...
  • Page 10 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 10/94 MPD-1611291-A...

  • Page 11: General Overview

    EXACT-V2 High End Rack Modulator / Exciter 1.1 General overview EXACT-V2 exciter has been especially designed to support, in addition to ATSC 1.0, the complex ATSC 3.0 modulation scheme, including Digital Adaptive Pre-correction (DAP) circuits and all required mechanisms to feed transmitters with flexible and highly secured input stream formats.

  • Page 12: Block Diagram

    The generic block diagram is described below: Figure 1: EXACT-V2 functional block diagram EXACT-V2 features two ASI/SMPTE input streams that can be processed in parallel for stream redundancy (Primary/Secondary). Four IP streaming (Gigabit) input/output ports are reserved for ATSC 3.0 mode.

  • Page 13: Features Summary

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Features Summary 3/10/2017 Page 13/94 MPD-1611291-A...
  • Page 14 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 14/94 MPD-1611291-A...

  • Page 15: Features Overview

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 2.1 Features Overview Input Stream Management  ATSC 1.0 : o 2x ASI/SMPTE 310M Inputs :  ASI: 188 or 204 byte format with RS decoding – TS/ASI (ETSI EN...
  • Page 16 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter o Manual mute and programmable mute condition on LORS o RF maintain function on stream input loss Clock and synchronization signal management  o External reference sources: 1PPS, 10MHz inputs...

  • Page 17: Input Stream Interfaces

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 2.2 Input Stream Interfaces 2.2.1 ASI/SMPTE Inputs The unit offers 2 ASI/SMPTE inputs compliant either with DVB-ASI ([D1] & [D2]) or with SMPTE 310M. They can be used either in single or redundant mode. 188 or 204 byte packets without RS coding and 204 byte packets with RS coding are supported when used in ASI mode.

  • Page 18: Ts Cleverswitch Control

    2.3.1 TS CleverSwitch Control CleverSwitch is a flexible input redundancy management mechanism designed by Hitachi-Comark. It is enabled by default and can be manually disabled or enabled. Figure 2: TS CleverSwitch block diagram CleverSwitch is based on a programmable consecutive error threshold. Once it is reached, the stream selection switches automatically from the primary input to the secondary.

  • Page 19: Seamless Switching

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 2.3.2 Seamless Switching The switching (and switching back) performed by the TS CleverSwitch between the primary and the secondary stream is not expected to be seamless. However, if the exact same data stream is present on both inputs (Primary & Secondary) then the modulator performs seamless switching between inputs.

  • Page 20: Digital Precorrection

    (DAP) algorithm manual: curves are set via TuneCast software (using IP connection) The EXACT-V2 product integrates both Linear and Non-Linear Digital Adaptive Precorrection, as well as Linear manual precorrection. Figure 3: Linear & Non-Linear Precorrection methods...
  • Page 21 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter The use of adaptive precorrection is generally preferred not only in order to reach higher performance and efficiency, but also in order to save on technician time. However, when several RF signals are combined together (adjacent channels), the use of Linear DAP is not possible because the feedback signal is then a combined spectrum of several channels.

  • Page 22: Digital Adaptive Precorrection

     2.6.1.1 Non-Linear Adaptive Precorrection EXACT-V2 performs non-linear precorrection over a 75 MHz bandwidth. The purpose of non-linear precorrection is to correct the distortion from the power amplifier. With the feedback from the output amplifier, an adaptive non-linear precorrection should automatically find the best precorrection and follow the variations of the amplifier characteristics.
  • Page 23 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter SINGLE DAP: The DAP process is manually started and is stopped either by a • timer value (user configurable) or manually stopped. Figure 7: Single DAP mode operation SURVEY DAP: In this mode, the DAP process is started as the Single DAP mode.
  • Page 24 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter CONTINUOUS DAP: The DAP works continuously until the user exits continuous • mode. Figure 9: Continuous DAP mode operation Linear Adaptive Precorrection 2.6.1.2 The purpose of Linear precorrection is to correct the distortion in amplitude and in group delay of the output filter.

  • Page 25: Manual Digital Pre-Correction

    2.6.3 Adaptive Linear pre-correction for sharp channel filters (in ATSC 1.0) With specific, sharp tuned filters, the EXACT-V2 Linear DAP algorithm could fail. Generally, the complexity of the channel filter is due to the fact that this filter is so tight.

  • Page 26: Output Processing

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Figure 10: Sharp Filter Profile menu 2.7 Output Processing The nominal output level of the main output “RF Out” is 0 dBm for the standard exciter and 20dBm for the exciter with optional preamp. An attenuation between 0 and 17 dB per increment of 0.1 dB can be set.

  • Page 27: Crest Factor Reduction Management

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter The “RF Maintain” feature consists in keeping an RF signal presence out of the modulator in order to allow a constant power at the modulator RF output during an input stream error (the function “RF Maintain on Input Stream Error” shall then be enabled).
  • Page 28 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter from 8dB to 20dB. The default value is 10 dB, meaning that a light crest factor reduction is performed. The following figures display the Crest Factor parameter impact on a signal:...
  • Page 29 For instance, for a Crest Factor Optimization of 120, we observe a gain of 10dB for the shoulder level and a loss of only 3dB for the MER. Hitachi-Comark therefore recommends that this parameter be set in the ideal range of 70 to 150.

  • Page 30: Dap Operation

    DAP stands for “Digital Adaptive Precorrection”, it is an option allowing the user to run the EXACT-V2 in a very high-end mode in order to reach unequalled RF signal performance and to allow a significant gain in transmitter Power Efficiency.
  • Page 31 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter  DAP mode activation In the Settings Tab, the DAP mode can be enabled under Outputs > Precorrections: Note: Enabling or disabling the DAP causes a reset of the non-linear curves.

  • Page 32: Clock And Synchronization

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 2.8 Clock and Synchronization The clock and synchronization function is responsible for synthesizing the required temporal signals and data rates. A high-stability 10 MHz OCXO provides the internal clock reference.
  • Page 33 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter The figure below shows the entire VX20-x0x2 synchronization processing block (the on-board GPS being depicted as “GPS receiver”): Figure 13: VX20-x0x2 synchronization processing block Then, depending on the user’s setup, three cases can be considered:...
  • Page 34 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 2) Working with external 1PPS reference signal: Figure 15: VX20-x0x2 clock synchronization – external 1PPS signal In this case, the modulator directly uses the 1PPS available from the external source available on the 1PPS I/O interface.

  • Page 35: Warm-Up Time

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 2.8.2 Warm-up Time This part aims at describing the WARM-UP function which has been designed for compensating the start-up delay of the OCXO (for instance, in case of AC power loss).
  • Page 36 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter The PLL_Unlocked status (Mute on SFN Not Ready) is used in order to maintain that the output signal is muted (please refer to the mute conditions in chapter RF output muting and RF maintain features.)

  • Page 37: Power Measurements

    OK: Figure 18: Mute behavior – LORS TimeOut is not reached 2.9 Power Measurements EXACT-V2 provides the capability to measure the forwarded and reflected RF power output from the transmitter, as described in the following figure. Figure 19: Power...

  • Page 38: Automatic Gain Control (Agc)

    WEB GUI by the user for error management and monitoring. 2.10 Automatic Gain Control (AGC) EXACT-V2 provides a built-in output AGC to drive power amplifier stage. The output allows the device to maintain a very stable system output power that could otherwise vary depending on temperature, aging, etc.

  • Page 39: Exact-V2 Rack

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter EXACT-V2 Rack 3/10/2017 Page 39/94 MPD-1611291-A...
  • Page 40 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 40/94 MPD-1611291-A...

  • Page 41: Exact-V2 Mechanics

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter The EXACT-V2 unit is a standard 1RU rackmount chassis. The dimensions are 9.8” x 19” x 1.75”. The modulator weight is 10 lbs. Figure 21: EXACT-V2 1RU 3.1 EXACT-V2 mechanics 3.1.1 Front panel layout...

  • Page 42: Rear Panel Layout

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter A Control Ethernet port is also available on the front panel. 3.1.2 Rear Panel Layout Below is a depiction of the exciter’s rear panel. Figure 23: EXACT-V2 Rear panel overview The rear panel provides all the connectors needed for interconnection with the exciter.
  • Page 43 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter ASI Stream Output interface Function: ASI Output General Standard: DVB-ASI Name: ASI_Out Connector: BNC Connector–impedance 75Ω Type: Output Performances Data Rate: ASI: 80 Mbps maxi. Mode/Format (Out): Packet mode/188-byte Figure 25: ASI Output interface Electrical Gigabit Port (Data &...
  • Page 44 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter GPS Antenna input General Function: GPS antenna input Name: Connector: Type: Input Performances Antenna Type: Active Antenna Voltage 3.3 VDC Antenna System Gain: 10 dB Frequency 1575.42 MHz Figure 28: GPS antenna input...
  • Page 45 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 1PPS reference input/output General Function: Time Reference in/out Name: 1PPS Connector: BNC – 50 kΩ Type: Configurable I/O Performances Signal : 1 PPS Level: LVTTL / TTL (input) LVTTL (output) ±50ns (input tolerance)
  • Page 46 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter RF Output (with OPT-20dB Internal Preamplifier) General Function: RF output Standards: ATSC 1.0 & ATSC 3.0 Name: Connector: N connector – 50 Ω Type: Output Performances Frequency*: VHF (54-88 MHz)
  • Page 47 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Monitoring Output General Function: Monitoring output Standards: ATSC Name: Monit Out Connector: SMA – 50 Ω Type: Output Performances Frequency: See RF Output Level: -20 dB (relative to RFout) Other:...
  • Page 48 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter RF Feedback Inputs General RF Feedback inputs / RF Function: Measurements Standards: Name: FBA / FBF Connector: SMA – 50 Ω Type: Input Performances UHF, VHF or VHF B3 depending...
  • Page 49 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Reflected Power Measure Input General Function: Reflected Power Measure Standards: Name: RFP In Connector: SMA – 50 Ω / High impedance Type: Input Performances Frequency: Depends on model (RF input)
  • Page 50 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter General Function: Control / monitoring Standards: 1x RS-232 Name: Serial Port 1 Connector: Female SubD9 Type: RS-232/RS-485 Performances Control Baud rate: 9600 bps to 115200 bps TOD Baud rate: 9600 bps...
  • Page 51 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Alarm General Function: Alarm relays Name: GPIO / GPIO2 Connector: SubD9 connectors Type: Dry contacts / GPI / VDC / VDC Name RELAY1_Normally_Open (Open when active alarm) 12 VDC output through 2.7 Kohms resistor and...

  • Page 52: Front Panel Signalization (Leds Description)

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.3 Front Panel signalization (LEDs description) A set of 4 LED’s indicate the exciter status: A Power LED indicator An Input LED indicator An Output LED indicator An Alarm LED indicator Behavior may differ depending on the exciter function and configuration.

  • Page 53: Power Requirements

    The exciter must be powered by a 110-240VAC 50-60Hz voltage. The overall EXACT-V2 modulator consumes up to 70 W. The overall EXACT-V2 exciter consumes up to 120 W with optional +20 dB preamp. Figure 39: Power supply plug A yellow/green ground cable (0.75mm² min) must be connected to the small connector located between the power supply plug and the GPS antenna input.

  • Page 54: Serial Control Interfaces

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Data Link Auto nego IP Characteristics Maximum Bit Rate: 100 Mbps Number of Processed IP Streams: 1 per physical interface Maxi Network Jitter Tolerance: 50 ms Ethernet MTU Length: Max 1500 bytes In ATSC 1.0...

  • Page 55: Asi Inputs / Output And Mpeg-Ts Processing

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Standard: RS232 Limited to RX signal Electrical Level: ±12v compatible Baud Rate: 9600 bauds Others: No parity, 8 bits data, 1 bit stop Connector: SuB-D9 specific pinout with RS232 and RS485 interfaces 3.5.4...

  • Page 56: Digital Modulation

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.5.5 Digital modulation Characteristics Typical Value Comment ATSC Modulation ATSC Mode: 8VSB According to ATSC A/53 Channel Bandwidth: 6 MHz Characteristics Typical Value Comment Modulation Performances In Band SNR (Eq. OFF): ≥...

  • Page 57: Clock Synchronization

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.5.6 Clock synchronization Characteristics Typical Value Comment External References External 10 MHz Reference Input Impedance: 50 Ohms Level: -15 to +15 dBm Frequency: 10 MHz ± 0.6 ppm External 1 PPS Reference Input Level: LVTTL level –...
  • Page 58 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Characteristics Typical Value Comment Clocks & Synchronization 10 MHz Lock Control Type: Digital Internal 10 MHz clock With OCXO T°fStabilityf(Full < ± 5.10 0  50 °C Temperature Range): Tuning: <...

  • Page 59: Rf And Monitoring Outputs

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.5.7 RF and monitoring outputs Characteristics Typical Value Comment RF Output Adjustable Frequency Range: 470 to 862 MHz 170 to 240 MHz 54 to 88 MHz 1 Hz Step Size: 0.2 Hz...

  • Page 60: Digital Precorrection

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.5.8 Digital precorrection Characteristics Typical Value Comment Feedback Inputs RF Frequency Band: 470 to 862 MHz 170 to 240 MHz 54 to 88 MHz Impedance: 50 ohms Return Loss: > 13 dB...

  • Page 61: Power Level Measurement Inputs And Agc

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.5.9 Power level measurement inputs and AGC Characteristics Typical Value Comment Measurement Inputs (Forward and Reflected Power) AC Impedance: 50 ohms DC Impedance: ~ 80 kohms Return Loss: > 12 dB...

  • Page 62: Conformity With Ec Directive

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3.6 Conformity with EC Directive The CE marking is present on the RTM-50 product. It: • Shows that we have checked that this product meets safety, health or environmental requirements •...

  • Page 63: Exact-V2 Installation

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter EXACT-V2 Installation 3/10/2017 Page 63/94 MPD-1611291-A...
  • Page 64 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 64/94 MPD-1611291-A...

  • Page 65: Unpack The Unit

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 4.1 Unpack the Unit Please check the shipping container for any damage due to transportation when receiving the product. If there is any damage please contact the carrier immediately. Carefully unpack the exciter from the storage box.

  • Page 66: Temperature Alarms

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 4.2.1 Temperature alarms The maximum temperature levels are as follows: o A warning will be raised when the internal temperature reaches higher than 68°C o An alarm with output muting will trigger after internal temperatures reach higher than 71°C...

  • Page 67: Initial Configuration

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 4.4 Initial Configuration Except otherwise specified at the time of order, the exciter is delivered with the basic configuration as described hereafter. The following configuration can also be retrieved with the “Set Default” command (not available in the WEB GUI) that will only keep IP settings and precorrection curves.
  • Page 68 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter ATSC 1.0 Other Parameters Default Settings Standard: ATSC (not changed by default command) Test Mode: Disabled Serial Speed: 57600 Serial Protocol: Standard Auto Logout Time: ASI/SMPTE_IN1 Type: ASI/SMPTE_IN2 Type: ASI/SMPTE_IN1 Equalizer* :...
  • Page 69 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Mute Conditions: GPI=0: Disabled GPI=1: Disabled Mute: Disable RFP Warning AGC Protection: Disabled RFP Error Protection Cycle: Disabled RFP Error Protection – No. of Retries: RFP Error Protection – Delay Between Retries: RFP Error Protection –...
  • Page 70 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Max FWP Error: 120 % (not changed by default command) RFP Input Type: RF input (not changed by default command) RFP Coupler Attenuation: 0 dB (not changed by default command)

  • Page 71: Operation

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Operation 3/10/2017 Page 71/94 MPD-1611291-A...
  • Page 72 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 72/94 MPD-1611291-A...

  • Page 73: Operation Generalities

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Operation Generalities 5.1.1 Local Operation The product can be locally controlled using the front panel menu. It is composed of an LCD screen and 6 buttons to navigate the control/monitoring menu.

  • Page 74: Embedded Web Gui Description

    [IP] is the IP address of the equipment. This address can be retrieved using the front panel display menu: MANAGEMENT > Control IP Port > Add To access any settings of the EXACT-V2 unit, a login is required. There are 3 logins: o User (Guest): Only monitoring of the equipment is allowed o Maintenance: Minor changes are allowed like test mode, input management, precorrections, mute/unmute, clock and synchronization, etc.

  • Page 75: General Overview

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 5.2.3 General Overview Area 1 is the header of the main window. It presents the login/logout functions as well as equipment identification. Area 2 is the main window. It presents either the parameters settings or the detailled monitoring.

  • Page 76: Settings Tab

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 5.2.4 Settings Tab The Settings tab can be accessed by clicking on the « Settings » header. The left part of the screen describes the settings menu while the right part presents each screen related to one menu item.
  • Page 77 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter A message in the main window header allows the user to verify if the settings have been modified and not applied. The Apply button appears to confirm the application. If any change must be discarded, the « Refresh » button can be used to display the current configuration in the settings screens.

  • Page 78: Monitoring Tab

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 5.2.5 Monitoring Tab The Monitoring tab can be accessed clicking on the Monitoring header. It is divided into 2 independent screens to allow the user to monitor two different blocks.

  • Page 79: Log File

    EXACT-V2 High End Rack Modulator / Exciter 5.2.6 Log File EXACT-V2 features an onboard Log file to consult the different information, warning or error that occurred on the product. To access to the Log File window, please press the envelop.
  • Page 80 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 80/94 MPD-1611291-A...

  • Page 81: Maintenance & Troubleshooting

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Maintenance & Troubleshooting 3/10/2017 Page 81/94 MPD-1611291-A...
  • Page 82 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 82/94 MPD-1611291-A...

  • Page 83: Versions Management

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 6.1 Versions management The product is defined by its commercial reference and its version numbers. Product versions are managed using two separate and independent three digits numbers: The hardware version •...

  • Page 84: Licence Key Management

    Select the desired option to unlock by clicking on the associated “Unlock” button o Enter the key code that is provided by Hitachi-Comark following the licence order The product then automatically reboots and the new licence is taken into account.

  • Page 85: Contact The Technical Support

    Email : support@comarktv.com The technical support team of Hitachi-Comark is present to answer your questions and try to understand the problem that may be encountering with your exciter. They will be able to help you to identify the problem or give you recommendations on how to return the unit to the factory.
  • Page 86 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 86/94 MPD-1611291-A...

  • Page 87: Gps Installation Recommendations

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Appendix GPS Installation Recommendations 3/10/2017 Page 87/94 MPD-1611291-A...
  • Page 88 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 88/94 MPD-1611291-A...
  • Page 89 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter While doing GPS installation and setup for a product with an embedded GPS receiver, it is highly recommended to respect the following conditions: Considering: Pgps as the power of the incoming signal...
  • Page 90 USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter 3/10/2017 Page 90/94 MPD-1611291-A...

  • Page 91: Appendix B Example Of Gps Antenna

    USER MANUAL MPD-1611291-A EXACT-V2 High End Rack Modulator / Exciter Appendix Example of GPS Antenna 3/10/2017 Page 91/94 MPD-1611291-A...
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