SATLINK ST-6503 HDMI to DVB-T RF Encoder Modulator CATV

SATLINK ST-6503 HDMI to DVB-T RF Encoder Modulator

The SATLINK ST-6503 is a professional-grade HDMI to DVB-T encoder modulator designed for CATV operators, hotels, hospitals, schools, and broadcast facilities that want to distribute self-produced HD content over existing coaxial cable networks. It converts an HD source signal directly into a DVB-T RF channel using standard COFDM modulation and H.264 encoding — all in a compact, wall-mountable unit. Made in Mainland China.

Key Features

• HD to RF Conversion: Converts HDMI input (720p / 1080p) into a DVB-T RF channel for distribution over coaxial CATV infrastructure.
• Standard COFDM Modulation: H.264 encoding with COFDM modulation ensures robust, high-quality digital TV signal output.
• Wide Frequency Range: RF output from 100 MHz to 860 MHz, covering VHF and UHF bands for broad compatibility.
• Flexible Bandwidth: Supports 6 MHz, 7 MHz, and 8 MHz channel bandwidths to suit regional broadcast standards worldwide.
• Adjustable RF Output Level: Continuously adjustable output level from 70 dBμV to 100 dBμV in 1 dBμV steps for precise signal management.
• 2K & 8K Carrier Modes: Supports both 2K and 8K OFDM carrier modes for maximum flexibility.
• 16×2 LCD Display: Clear lattice LCD screen makes setup and monitoring straightforward.
• Compact & Wall-Mountable: Small form factor with wall-mount capability — ideal for rack rooms and AV closets.
• CE Certified: Meets European CE safety and electromagnetic compatibility standards.
• High Integration: All-in-one design eliminates the need for separate encoding and modulation equipment.

Technical Specifications

Who Is This For?

The ST-6503 is the ideal solution for hotels, resorts, hospitals, educational institutions, sports clubs, and CATV operators looking to broadcast self-produced HD content — such as informational channels, live event feeds, or promotional material — to standard DVB-T compatible TVs throughout their premises using existing coaxial infrastructure. No extra decoder box is required for end viewers with a built-in DVB-T tuner.

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For more information on digital television broadcasting standards, visit the FCC or learn about signal transmission standards at NIST.gov.

Frequently Asked Questions

Q: What input sources does the SATLINK ST-6503 DVB-T encoder modulator support?

A: The ST-6503 accepts HDMI input signals at 720p and 1080p resolutions, making it compatible with cameras, media players, computers, set-top boxes, and other HD sources with HDMI output.

Q: What is DVB-T and which TVs can receive the ST-6503 output?

A: DVB-T (Digital Video Broadcasting – Terrestrial) is the widely adopted standard for over-the-air and cable digital television. Any TV or display with a built-in DVB-T tuner — which includes most modern televisions sold in Europe, Australia, Asia, and many other regions — can receive the modulated signal from the ST-6503 without any additional decoder hardware.

Q: Can I adjust the output frequency to avoid interference with existing channels?

A: Yes. The ST-6503 features a continuously adjustable RF output frequency ranging from 100 MHz to 860 MHz, allowing you to select a clear, unused channel within your CATV system to avoid interference with existing broadcast channels.

Q: Is the ST-6503 suitable for large-scale hotel or hospital CATV distribution?

A: Absolutely. The ST-6503 is specifically designed for professional CATV environments including hotels, hospitals, schools, and commercial venues. Its adjustable output level (70–100 dBμV) and wide frequency range make it well-suited for large coaxial distribution networks when combined with appropriate amplifiers and splitters.