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1-Channel HDMI & AV to RF Modulator – PAL/NTSC CATV Hotel
1-Channel HDMI & AV to RF Modulator – PAL/NTSC CATV Hotel
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1-Channel HDMI & AV to RF Analog Modulator – Hotel, CATV & Cable TV Distribution
The Tuoying 1-Channel HD AV to RF Modulator is a professional-grade signal converter designed for hotel cable TV systems, CATV headends, and broadcast distribution environments. It converts HDMI (HD) or composite AV (CVBS) input signals into a standard RF output, compatible with PAL, NTSC, and SECAM television standards — making it ideal for distributing video content across existing coaxial cable infrastructure without costly upgrades.
Engineered with MCU-controlled PLL technology, this modulator delivers high frequency accuracy and carrier stability across a wide 47–870 MHz tunable range. Whether you're setting up a hotel in-room TV system, a hospitality venue, or a professional broadcast distribution network, this modulator offers the flexibility and reliability you need.
Key Features
- Dual Input Support: Selectable AV (CVBS) or HDMI (HD) signal input for maximum compatibility
- Wide Frequency Range: 47–870 MHz with adjustable output level and CATV/TV channel selection
- MCU-Controlled PLL: Ensures high accuracy and stability of video carrier and audio subcarrier
- Selectable Audio Subcarrier: Choose from 5.5 MHz, 6.0 MHz, or 6.5 MHz to match regional broadcast standards
- RF Loop Input: Pass-through RF input for seamless integration into existing cable networks
- Auto Memory at Power Outage: Settings are retained even after power loss
- LED Channel Display: Clear front-panel LED display for easy channel number identification
- Double Sideband Modulation: Supports non-adjacent channel usage for greater flexibility
- CE Certified: Meets European conformity standards for safety and performance
- Universal Power Supply: 100–240V AC, 50–60Hz for worldwide use
Technical Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 47–870 MHz |
| Output Level | 90 dBμV (adjustable) |
| Video Input Level | 0.8 Vpp (0.4–0.8 Vpp adjustable) |
| A/N Ratio | -15 ± 2 dB |
| Video S/N Ratio | 55 dB |
| Visual Carrier Freq. Accuracy | ±5 KHz |
| Video Frequency Response | ±2.5 dB (50 Hz to 4.2 MHz) |
| Output Return Loss | 14 dB |
| Spurious Rejection | 50 dB |
| Audio Frequency Deviation | ±50 KHz |
| Audio Frequency Response | ±2 dB |
| HD Input Resolution | 480i/p, 576i/p, 720p, 1080i, 1080p |
| Video Input Impedance | 75 Ω |
| Audio Input Impedance | 600 Ω |
| Output Impedance | 75 Ω |
| Input Voltage | 100–240V AC, 50–60Hz |
| Certification | CE |
| Country of Origin | Made in China |
Who Is This For?
This modulator is purpose-built for hotel AV managers, CATV system integrators, broadcast engineers, and AV installation professionals who need a reliable, cost-effective way to distribute HD or SD video content over existing RF coaxial cable networks. It's especially suited for:
- Hotel & hospitality in-room TV systems
- CATV & cable TV headend distribution
- Hospital, school, or office building video distribution
- Professional broadcast and AV integration projects
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Further Reading
For technical guidance on RF signal standards and broadcast engineering best practices, visit the NIST Communications Technology Laboratory.
Frequently Asked Questions
Q: What input sources does this HDMI to RF modulator support?
A: This 1-channel modulator supports two selectable input sources: a standard composite AV (CVBS) input and an HDMI (HD) input. You can choose between them depending on your source device — making it compatible with everything from legacy DVD players to modern HD set-top boxes and media players.
Q: Which TV standards are compatible with this RF modulator?
A: The modulator is compatible with PAL, NTSC, and SECAM television standards, and covers a broad frequency range of 47–870 MHz. This makes it suitable for use in many countries and regions worldwide, including Europe, North America, Asia, and beyond.
Q: Can this modulator be used in a hotel or CATV distribution system?
A: Yes, this unit is specifically designed for hotel in-room TV systems and CATV/cable TV headend distribution. It features an RF loop input for integration into existing cable networks, adjustable output level, and auto memory at power outage — all essential features for professional AV distribution environments.
Q: Does the modulator retain its settings after a power outage?
A: Yes. The unit includes auto-storage functionality that retains all programmed channel and frequency settings even after a power loss, so your system resumes seamlessly without manual reconfiguration.
