Tuoying WS-6990 DVB-T Modulator HDMI to RF – H.264 MPEG-4

Tuoying WS-6990 DVB-T Modulator – HDMI to RF Signal Converter

The Tuoying WS-6990 is a professional-grade DVB-T modulator that seamlessly converts HDMI audio and video signals into a DVB-T RF output. Engineered with integrated MPEG-4 AVC/H.264 encoding and modulation, this compact unit is the ideal solution for home entertainment systems, hotel digital signage, retail shops, surveillance control rooms, and any environment requiring reliable terrestrial digital TV distribution over existing coaxial cable infrastructure.

With support for multiple modulation standards — including DVB-T (COFDM), ISDB-T, DTMB, J.83A, J.83B, and 8VSB — the WS-6990 offers outstanding flexibility for broadcasters and system integrators worldwide. Its wide RF frequency range (50–1000 MHz), selectable bandwidth (6/7/8 MHz), and programmable PSIP parameters make it easy to integrate into virtually any distribution network.

Made in Mainland China.

Key Features

• HDMI 1.4a Input: Accepts high-definition signals up to 1920×1080p60 / 1920×1080i / 1280×720p
• MPEG-2 Video Encoding with bit rates from 1–19.5 Mbps for crisp, efficient compression
• Audio Encoding: MPEG1 Layer II and AC3 with sample rates of 32/44.1/48 kHz and up to 384 kbps
• Multi-Standard Modulation: DVB-T COFDM, ISDB-T, DTMB, J.83A (Annex A), J.83B (Annex B), and 8VSB (ATSC A/53)
• DVB-T Constellation: 4QAM, 16QAM, 64QAM | Code rates: 1/2, 2/3, 3/4, 5/6, 7/8
• Guard Interval: 1/32, 1/16, 1/8, 1/4 | Transmission modes: 2K, 4K, 8K
• Wide RF Frequency Range: 50–1000 MHz with 1 kHz minimum step precision
• Output Impedance: 75 Ohm standard coaxial interface
• Outband Suppression: ≥60 dB for clean, interference-free signal distribution
• Programmable PSIP: Customizable program name, PMT PID, Video PID, and Audio PID
• Power Supply: DC 12V, max current 680 mA — low power consumption
• CE Certified | Weight: 1 kg
• Operating Temperature: -10°C to 45°C | Humidity: 40%–70%
• Storage Temperature: -40°C to 70°C | Humidity: 40%–95%

Technical Specifications at a Glance

Ideal Applications

• Hotel in-room entertainment and digital signage systems
• Retail store and venue display distribution
• CCTV and surveillance monitor distribution over coax
• Home theater and media room signal distribution
• Broadcast headend and small-scale terrestrial TV networks

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Standards & Resources

For more information on digital television broadcasting standards and signal distribution, visit the National Institute of Standards and Technology (NIST) – Digital Television resource page.

Learn more: Transcoding

Frequently Asked Questions

Q: What input does the Tuoying WS-6990 DVB-T modulator accept?

A: The WS-6990 accepts an HDMI 1.4a input, supporting resolutions up to 1920×1080p at 60 or 50 Hz, as well as 1280×720p. Simply connect any HDMI source — such as a media player, computer, or camera — and the unit converts the signal to a DVB-T RF output for distribution over standard coaxial cable.

Q: Which modulation standards does the WS-6990 support?

A: The WS-6990 is a highly versatile modulator supporting DVB-T (COFDM), ISDB-T, DTMB, J.83A (Annex A), J.83B (Annex B), and 8VSB (ATSC A/53) — making it compatible with terrestrial digital TV standards used across Europe, Asia, the Americas, and beyond.

Q: Can I use this modulator to distribute HDMI content to multiple TVs in a hotel or retail environment?

A: Yes. The WS-6990 is specifically designed for multi-room distribution applications such as hotels, retail shops, and digital signage installations. It converts a single HDMI source into a DVB-T RF signal that can be distributed to multiple TVs via existing coaxial cable infrastructure, with programmable channel and PID settings for easy integration.

Q: What power supply does the WS-6990 require?

A: The modulator runs on DC 12V with a maximum current draw of 680 mA, making it energy-efficient and easy to power in a rack or desktop setup.

Q: Is the WS-6990 DVB-T modulator CE certified?

A: Yes, the Tuoying WS-6990 carries CE certification, confirming it meets European safety and electromagnetic compatibility standards. It is made in Mainland China by Tuoying, a specialist in professional digital TV signal processing and broadcasting equipment.