Thor Broadcast HYBRID-RF-8 Universal HDMI & SDI Digital Modulator

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Thor Broadcast HYBRID-RF-8 Universal HDMI & SDI Digital Modulator. This device is designed to convert up to 8 channels of HDMI or SDI input into various digital RF output standards, including QAM, ATSC, DVB-T, and ISDB-T. Its flexible design allows for independent selection of input sources and modulation standards per channel, making it a versatile solution for broadcast and CATV distribution infrastructures.

2. Features

• 8 Independent HDMI and SDI Inputs: Individually selectable for each of the 8 output channels.
• Multiple RF Output Standards: Supports QAM (Annex A and B), ATSC-8VSB, DVB-T, and ISDB-T, selectable per channel.
• Flexible RF Output Configuration: Each of the 8 RF output channels can be set to an independent frequency and modulation standard.
• Full HD Video Support: Up to 1080p/59.94/60, with support for 1080i, 720p, and 480i resolutions.
• Advanced Video Encoding: MPEG2 video encoding up to 25Mbps per channel.
• Audio Encoding Options: Supports Dolby AC3, MPEG1 Layer 2, and AAC audio encoding.
• Low Latency: Features Thor's low latency technology.
• Virtual Channel Numbers (VCT): For enhanced flexibility in channel mapping.
• Network Management System (NMS) Port: For remote configuration and monitoring via a web interface.
• Front Panel LCD Display and Controls: For local setup and adjustments.
• Single 1RU Device: Designed for 19-inch rack mounting.

3. Package Contents

Upon opening the package, verify that all items are present and in good condition:

• Thor Broadcast HYBRID-RF-8 Modulator Unit
• Power Cable
• Instruction Manual (this document)

4. Product Overview

4.1 Front Panel

The front panel features an LCD display for menu navigation and status monitoring. To the right of the LCD, an NMS (Network Management System) port is available for network connectivity. Below the LCD, eight Link LEDs indicate active input channels. Navigation buttons (Return, Up, Down, Left, Right, OK) allow for local configuration of the unit's settings.

4.2 Rear Panel

The rear panel provides 8 HDMI inputs and 8 SDI inputs, allowing for flexible source connectivity. On the left, you will find the RF OUT and RF IN ports, along with an RF ADJ control. The power input (AC 100V-240V 50/60Hz 2A) and power switch are located on the right side.

4.3 System Diagram

This diagram illustrates a typical setup for the HYBRID-RF-8 modulator. It shows various input sources (e.g., HDMI from set-top boxes, SDI from cameras) connecting to the modulator. The RF output is then distributed to multiple televisions via a splitter. The NMS port allows for control and configuration via a connected computer.

5. Setup

1. Physical Placement: Install the HYBRID-RF-8 unit in a standard 19-inch rack. Ensure adequate ventilation around the unit.
2. Power Connection: Connect the provided power cable to the unit's power input on the rear panel and then to a suitable AC power outlet.
3. Network Connection (Optional): For remote management, connect an Ethernet cable from the NMS port on the front panel to your network switch or router. Ensure your computer is on the same subnet as the modulator for initial access. The default IP address can be found in the manual or on the unit's LCD display upon power-up.
4. Input Source Connection: Connect your HDMI or SDI video sources to the corresponding input ports on the rear panel. The HYBRID-RF-8 supports up to 8 HDMI and 8 SDI inputs, allowing you to select which input type to use for each channel.
5. RF Output Connection: Connect the RF OUT port on the rear panel to your CATV distribution system or directly to a television.
6. Power On: Flip the power switch on the rear panel to the 'ON' position. The power LED on the front panel will illuminate. The LCD display will show the NMS IP address and other startup information.

6. Operation

6.1 Front Panel Configuration

The front panel LCD and navigation buttons allow for direct configuration of the modulator's settings. Use the 'Up' and 'Down' buttons to scroll through menu options, 'OK' to select, and 'Return' to go back.

1. Modulation Settings: Navigate to the 'Modulate' menu. Here you can select the desired channel (1-8) and configure its modulation standard (DVB-C J.83B, ATSC, DVB-T, ISDB-T).
2. RF Frequency: Within the 'Modulate' menu for each channel, you can adjust the RF Frequency (e.g., 261.000MHz, 461.000MHz). This determines the channel number that will appear on your television.
3. Input Source Selection: In the 'Encode' menu for each channel, select 'Input Source' to choose between SDI or HDMI for that specific channel.
4. Video/Audio Parameters: Adjust settings such as Bit Rate, Latency (from 1000ms down to 100ms for ultra-low latency), Audio Format (AC3, AAC, MPEG1 Layer 2), Video PID, and Audio PID.
5. Virtual Channel Numbers (VCT): In the 'TS Config' menu, you can set the Major Channel and Minor Channel for each output. For example, a Major Channel of '30' and a Minor Channel of '1' would appear as '30.1' on compatible TVs.
6. Saving Settings: After making any changes, always navigate to the 'Save & Reboot?' option and select 'Yes' to ensure your settings are stored in memory and applied.

6.2 Network Management System (NMS)

For comprehensive control and advanced configuration, access the unit's web interface via the NMS port. Enter the unit's IP address (displayed on the front panel LCD) into a web browser on a computer connected to the same network. The web interface provides a graphical user interface (GUI) for managing all aspects of the modulator.

7. Specifications

8. Troubleshooting

If you encounter issues with your HYBRID-RF-8 modulator, consider the following common troubleshooting steps:

• No Power: Ensure the power cable is securely connected and the power switch on the rear panel is in the 'ON' position. Check the power outlet.
• No Signal on TV: Verify that input sources (HDMI/SDI) are correctly connected and active. Check the RF OUT connection to the TV. Ensure the correct RF frequency and modulation standard are configured for the channel on the modulator and that your TV is scanning for channels correctly.
• Incorrect Channel Display: Confirm that the Major and Minor Channel settings (VCT) are correctly configured on the modulator for the desired virtual channel number.
• Network Access Issues: Ensure the Ethernet cable is properly connected to the NMS port. Verify that your computer's IP address is on the same subnet as the modulator's NMS IP address.
• Settings Not Saved: Always remember to save your settings via the front panel or web interface after making changes.

9. Maintenance

The Thor Broadcast HYBRID-RF-8 modulator is designed for reliable operation with minimal maintenance. To ensure optimal performance and longevity:

• Keep Clean: Regularly clean the exterior of the unit with a soft, dry cloth. Avoid using liquid cleaners or solvents.
• Ensure Ventilation: Do not block the ventilation openings on the unit. Proper airflow is crucial to prevent overheating.
• Firmware Updates: Check the Thor Broadcast website periodically for any available firmware updates to ensure your unit has the latest features and bug fixes.

10. Warranty and Support

For warranty information, please refer to the documentation included with your product or visit the official Thor Broadcast website. For technical assistance, installation support, or any questions regarding your HYBRID-RF-8 modulator, please contact Thor Broadcast support:

Phone: 1 (800) 521-8467 Ext 2