12-Channel SDI Encoder & RF Modulator – Advanced Headend Solution for Broadcast Systems

FEATURES

  • HDMI Channels: Available at 1/4/8/16/24/48 Ch
  • Supported Resolution: 1280x720P 60 / 59.94 / 50 Hz 1920x1080I 60 / 59.94 / 50 Hz H.264 Codec ONLY 1920x1080P 60 / 59.94 / 50 Hz
  • Modulation Standard: QAM - J.83A, J.83B, J.83C. Firmware for ATSC or DVB-T available
  • Availability: In-Stock and Ship Today
  • Wholesale Discount: Yes
  • Shipping Method: DHL, FedEx, UPS, EMS, By Sea, By Air
  • Payment: TT(Bank Transfer), Western Union, Paypal, Payoneer

FMUSER 12-Channel SDI Encoder & RF Modulator: Advanced Headend Solution for Professional Broadcast Systems

1. Advanced Multichannel SDI-to-RF Modulation Solution

FMUSER’s 12-Channel SDI Encoder & RF Modulator delivers a future-ready, high-density solution for modern broadcast and CATV/IPTV systems. This 1RU compact unit integrates 12 SD/HD/3G-SDI inputs, ATSC/QAM256 RF modulation, and 256 IPTV TS inputs, enabling seamless aggregation of up to 1080p60 video streams into 16 non-adjacent RF carriers (COAX/CATV) and 16 synchronized IPTV MPTS streams. Built for efficiency, its advanced QAM256 modulation supports 6MHz channel bandwidth with 38Mbps throughput, allowing up to four 9Mbps programs per frequency—ideal for optimizing spectrum use and creating virtual subchannels (e.g., 7.1-7.4).

 

Key features include ultra-low latency processing for live broadcasts, VCT configuration for simplified channel numbering in existing CATV lineups, optional ASI output for legacy systems, and dual GE ports for IP redundancy. The modular design consolidates encoding, multiplexing, scrambling, and modulation into a single device, reducing rack space and infrastructure costs while enabling effortless scalability—combine multiple units for large-scale deployments.

 

Trusted in hospitality, healthcare, education, and large venues, FMUSER’s solution prioritizes broadcast-grade clarity with premium chipsets, closed caption support, and hybrid IP-RF workflows. Its precision engineering ensures reliability in mission-critical environments, offering unmatched flexibility to unify SDI, IP, and RF signals into a cost-effective, future-proof broadcast network. Contact FMUSER to customize a system tailored to your needs.

 

2. Model Selection

  • 12 SDI input to 16 CATV RF QAM (CABLE) Modulation Output and IPTV output -Low Latency
  • 12 SDI input to 8 CATV RF ATSC OFF AIR Modulation Output and IPTV output -Low Latency
  • 12 SDI input to 8 CATV RF DVB-T OFF AIR Modulation Output and IPTV output -Low Latency
  • 12 SDI input to 8 CATV RF ISDB-T OFF AIR Modulation Output and IPTV output -Low Latency

 

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Main Features

FMUSER’s innovative 12-channel RF modulator combines robust input flexibility, broadcast-grade encoding, and seamless signal distribution for modern CATV, IPTV, and hybrid systems. Designed for system integrators seeking cost-efficient, high-performance solutions, this CATV SDI modulator supports SDI, RF, and IP inputs while delivering ultra-low-latency outputs via RF coaxial, IP, or ASI interfaces. With advanced multiplexing, scrambling, and modulation capabilities, it streamlines workflows for broadcasters, hotels, stadiums, and digital signage networks—offering unparalleled value per channel.

1. Multi-Format Input Versatility

FMUSER’s RF SDI modulator simplifies integration by accepting signals from diverse sources, ensuring compatibility with existing workflows. From live cameras to IP streams, this system adapts to your needs.

  • 12-Channel HD-SDI Encoder: Process 12 simultaneous HD-SDI inputs (up to 1080p/60) with MPEG2 and H.264/MPEG4 AVC encoding for crisp, broadcast-quality output.
  • RF Tuner Flexibility: Base model includes ATSC support; optional QAM, DVB-T, or ISDB-T tuners enable global re-mux compatibility.
  • 256 IP Stream Inputs: Ingest UDP/RTP transport streams via the dedicated DATA1 port for IPTV integration.

2. Professional Signal Processing & Modulation

Ensure flawless signal distribution with precision multiplexing, scrambling, and modulation tools tailored for CATV and DVB networks.

  • 16-Channel Multiplexing/Scrambling: Combine up to 16 program streams into a single MPTS, with optional scrambling for content security.
  • DVB-C/ATSC/QAM Modulation: Output 16 modulated RF channels via coaxial CATV networks (DVB-C QAM or ATSC standards).
  • Optional DVB-T Modulation: Expand to 8 DVB-T RF outputs for terrestrial broadcasting (add-on feature).

3. Multi-Platform Output Solutions

Distribute content seamlessly across RF, IP, and ASI interfaces, maintaining synchronization and minimizing latency.

  • 16 MPTS IP Outputs: Stream via DATA2 port using UDP/RTP/RTSP protocols for IPTV delivery.
  • DVB-T IP Optimization: Dedicated 8 MPTS IP outputs for systems using DVB-T RF modulation.
  • ASI Backup Output: Ensure fail-safe redundancy with ASI connectivity for critical broadcast environments.

4. Advanced Audio & Metadata Control

Deliver immersive audio experiences with multi-format support and precise metadata management.

  • Multi-Codec Audio Encoding: MPEG1-Layer II, AAC, and Dolby Digital AC3 (2.0) encoding, plus AC3 5.1 passthrough.
  • PID Remapping & PCR Adjusting: Maintain timing accuracy and streamline signal re-mapping for seamless channel blending.
  • PSI/SI Editing: Customize program-specific information and service data for compliance with regional standards.

5. Simplified Control & Cost Efficiency

FMUSER’s best-in-class SDI modulator prioritizes user-friendly operation and unmatched affordability.

  • Web-Based Management: Configure settings, monitor outputs, and troubleshoot remotely via an intuitive interface.
  • Lowest Cost Per Channel: Achieve breakthrough pricing without compromising performance, ideal for large-scale deployments.

 

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Specifications

Input 12 HD-SDI inputs with CC
1 ATSC  or  (DVB-C QAM optional)Tuner for re-mux, F type interface
256 IP input over UDP and RTP, DATA1, RJ45
Video Resolution Input 1920*1080_60p, 1920*1080_50p,1920*1080_60i, 1920*1080_50i, 1280*720_60p, 1280*720_50P, 720*480_60i, 720*576_50i
Output 1920*1080_60p, 1920*1080_50p,1920*1080_60i, 1920*1080_50i, 1440*1080_60i, 1440*1080_50i, 1280*720_60p, 1280*720_50P, 720*576_50p, 720*576_50i, 720*576_30p, 720*576_25p, 720*480_60p, 720*480_60i,720*480_30p, 720*480_25p,320*240_60p,320*240_50p, 320*240_30p, 320*240_25p,320*180_60p, 320*180_50p, 320*180_30p, 320*180_25p, 960*540_50i, 704*576_50i,704*480_60i, 640*576_50i 640*480_60i, 544*576_50i,544*480_60i,
Encoding MPEG2 & MPEG4 AVC/H.264
Bit-rate 0.8~19Mbps for H.264 encoding 1~19Mbps for MPEG-2 encoding
Rate Control CBR/VBR
GOP Structure GOP B Frame: 0-3, GOP P Frame: 0-6
Advanced Pretreatment De-interlacing, noise reduction
Audio Encoding MPEG1 Layer II, MPEG2-AAC, MPEG4-AAC, Dolby Digital AC3 (2.0) encoding, AC3 (2.0/5.1) pass through
Sampling rate 48KHz
Resolution 24-bit
Bit-rate 64Kbps-320kbps each channel
Multiplexing Maximum PID Remapping 256 input per channel
Function PID remapping (automatically or manually)
Accurate PCR adjusting
Generate PSI/ SI table automatically
Scrambling Maximum simulcrypt CA 4
Standard EN300 429/ITU-T J.83A/B
Connection Local/remote connection
Modulation DVB-C QAM Channel: 16 non-adjacent carriers output (maximum bandwidth 192MHz)
Standard: EN300 429/ITU-T J.83A/B MER: ≥40db RF frequency: 50~960MHz, 1KHz step RF output level: -20~+10dbm (87~107 dbµV), 0.1db step Symbol Rate: 5.0Msps~7.0Msps, 1ksps stepping Constellation: 16/32/64/128/256QAM
J.83A J.83B
Constellation 16/32/64/128/256QAM 64/256 QAM
Bandwidth 8M 6M
DVB-T Standard EN300744
FFT mode 2K, 4K, 8K
Bandwidth 6M, 7M, 8M
Constellation QPSK, 16QAM, 64QAM
Guard Interval 1/4, 1/8, 1/16, 1/32
FEC 1/2, 2/3, 3/4, 5/6, 7/8
MER ≥42 dB
RF frequency 50~960MHz, 1KHz step
RF out 8*RF COFDM DVB-T out (8 carriers combined output)
RF output level -20~+10 dBm (77~97 dbµV), 0.1db step
Stream output RF output (F type interface)
16 MPTS output over UDP and RTP/RTSP as mirror of 16 DVB-C carriers, 8 MPTS output over UDP and RTP/RTSP as mirror of 8 DVB-T carriers(model dependent) 1*1000M Base-T Ethernet interface
System function Network management (WEB)
English language
Ethernet software upgrade
Miscellaneous Dimension (W×L×H) 482mm×440mm×44mm 1RU Rackmount
Approx weight 8kg
Environment 0~45°C(work); -20~80°C (Storage)
Power requirements AC 110V± 10%, 50/60Hz, AC 220 ± 10%, 50/60Hz
Power consumption 20W

Why Choose FMUSER’s 12-Channel RF Modulator?

This 12-channel SDI encoder and RF modulator is engineered for system integrators who demand reliability, scalability, and future-proof technology. By integrating SDI, IP, and RF workflows into a single compact unit, FMUSER reduces complexity while maximizing ROI. Contact us today to customize your system with optional tuners, DVB-T support, or bulk licensing—and discover why professionals trust FMUSER for mission-critical signal distribution.

 

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