IP to DVB-T (COFDM) Modulator
The BLANKOM HDC-5008T is an advanced, all-in-one DVB-T modulator designed for professional digital broadcasting environments. It provides a maximum of 512 IP inputs via 4 GE/SFP ports, alongside 6 ASI inputs.
At a glance
Key data, as supplied by engineering- 8 in 1 DVB-T Modulator
- Up to 512 IP inputs over UDP/RTP and 6 ASI inputs
- 8 non-adjacent DVB-T carriers output (50MHz~960MHz)
- Simultaneous IP (MPTS) and ASI output as mirror of carriers
Overview
Product description
The BLANKOM HDC-5008T is an advanced, all-in-one DVB-T modulator designed for professional digital broadcasting environments.
It provides a maximum of 512 IP inputs via 4 GE/SFP ports, alongside 6 ASI inputs. Following the multiplexing and DVB-T modulation processes, the device delivers 8 non-adjacent carriers spanning from 50 MHz to 960 MHz. Additionally, it provides 2 ASI outputs and 8 IP (MPTS) outputs acting as a direct mirror of the generated carriers.
Characterized by its highly integrated design, superior performance, and cost-effectiveness, the HDC-5008T is highly adaptable and perfectly suited for the new generation of DTV broadcasting systems
IP to DVB-T (COFDM) Modulator, with up to 512 IPTV in, with Multiplexer, with 8 RF and 8 MPTS IP out
Features & capabilities
- 8 Channel DVB-T Modulator
- Up to 512 IP inputs over UDP/RTP and 6 ASI inputs
- 8 DVB-T carriers output (50~960 MHz)
- Simultaneous IP (MPTS) and ASI output as a mirror of carriers
- High-Capacity Input: Equipped with 4 GE/SFP ports supporting a maximum of 512 IP inputs.
- Flexible Data Ports: Data1 serves as a bi-directional port (max 512 IP in / 8 IP out). Data2, Data3, and Data4 ports are dedicated exclusively to input.
- High Bandwidth: Accommodates a maximum of 840 Mbps transmission rate for each input.
- Advanced Multiplexing: Supports up to 256 PIDs remapping per channel, PSI/SI editing, and accurate PCR adjusting.
- Excellent RF Performance: Delivers broadcast-grade signal quality with a Modulation Error Ratio (MER) of ≥40 dB
- Versatile Outputs: Delivers 8 DVB-T non-adjacent carriers compliant with the ETSI EN300 744 standard.
- Stream Mirrors: Features 6 ASI inputs and 2 ASI outputs, along with 8 multiplexed TS over UDP/RTP/RTSP IP outputs.
- User-Friendly Management: Fully configurable via a web-based network management interface.
Front and rear panels
Front and Rear Panels of HDC-5008T
BLANKOM HDC-5008T IP to DVB-T Modulator front panel
BLANKOM HDC-5008T IP to DVB-T Modulator rear panel
System & application diagrams
Typical deploymentSystem Diagram
Application examples
Applications
Digital Broadcasting Systems: Specifically engineered to be highly adaptable for new-generation DTV broadcasting systems.
IPTV & Cable Headends: Serves as a central hub for converting massive amounts of IP and ASI feeds into high-quality DVB-T RF signals for extensive distribution networks.
Multiplexing Architectures: Effectively combines multiple input sources into dedicated RF carriers while simultaneously providing IP MPTS streams for secondary distribution.
Hospitality and Campus TV Networks: Ideal for converting high-volume IP-based feeds into DVB-T RF signals, enabling seamless digital television distribution over existing coaxial cable infrastructures in hotels, hospitals, and large commercial or residential campuses.
Technical specifications
Specifications are subject to change without prior noticeTechnical Specifications
Function
IP to DVB-T (COFDM) Modulator
Input
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IP Input (8 DVB-T carriers): Max 512 IP input through Data1-Data4 100/1000M Ethernet Port (or optional SFP interface). Each data port can input a max of 512 IP.
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ASI Input: 6 ASI inputs, BNC interface.
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Transport Protocol: TS over UDP/RTP, unicast and multicast, IGMP V2/V3.
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Transmission Rate: Max 840 Mbps for each input channel.
Multiplexing
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Input Channel: 512
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Output Channel: 8
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Max PIDs: 256 per channel
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Functions: PID remapping (auto/manually optional), PCR accurate adjusting, PSI/SI table automatically generating.
Modulation Parameters
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Channel: 8
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Standard: ETSI EN300 744
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Constellation: QPSK/16QAM/64QAM
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Bandwidth: 6 / 7 / 8 MHz.
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Trans mode: 2K / 4K / 8K.
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FEC: 1/2, 2/3, 3/4, 5/6, 7/8.
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Interface: F-typed output port for 8 non-adjacent carriers.
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RF Range: 50~960 MHz, 1 kHz stepping.
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RF Output Level: -20~+10 dBm (for all carriers), 0.5 dB stepping.
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MER: ≥40 dB.
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ACL: -55 dBc.
TS Output
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IP Output: 8 IP outputs over UDP/RTP/RTSP, unicast/multicast, Data1 100/1000M Ethernet Ports.
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ASI Output: 2 ASI outputs, one as a mirror.
System & General
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Management: Web-based network management.
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Dimensions: 430 mm x 180 mm x 44 mm (W x L x H).
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Temperature: 0 to 45°C (operation), -20 to 80°C (storage).
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Power Supply: AC 100V ±10%, 50/60 Hz or AC 220 V ±10%, 50/60 Hz.
Specifications are subject to change without prior notice.
Ordering guide
Exact part numbers for the quotationOrdering guide
Engineering questions
10 questions answered by the people who commission these unitsFAQ (Frequently Asked Questions)
What is the primary operational function of the BLANKOM HDC-5008T IP-to-DVB-T Modulator?
The BLANKOM HDC-5008T is a professional, high-density edge IP-to-DVB-T modulator designed for digital terrestrial television (DTTV) distribution and commercial RF headends. It is engineered to ingest high-throughput IP transport streams (SPTS or MPTS) over local or regional networks and modulate them directly into standard digital terrestrial DVB-T (COFDM) RF carriers for coaxial cable distribution.
How many independent DVB-T RF output carriers can be generated concurrently by a single HDC-5008T unit?
The advanced digital modulation block of the HDC-5008T is engineered to generate exactly 8 independent DVB-T RF carriers simultaneously from a single 1U chassis. This enables network engineers to bundle extensive television bouquets and radio stations into eight distinct, highly optimized terrestrial frequencies over a single physical coaxial distribution line.
Does the HDC-5008T perform hardware-based video decoding or transcoding?
No. The HDC-5008T operates strictly at the stream transport, multiplexing, and physical COFDM modulation layers. It handles the underlying video and audio payloads transparently, meaning it does not decompress or alter the compression syntax of MPEG-2, H.264 (AVC), or H.265 (HEVC) streams, maintaining absolute signal and codec integrity.
Which IP transport streaming protocols are supported on the network input stage?
The device complies fully with professional B2B telecom broadcasting standards. The input network interface natively supports low-overhead, line-rate UDP and RTP protocols with comprehensive Multicast and Unicast routing layouts, ensuring highly stable link acquisition and data stream termination from primary IP headends or local encoders.
Does this IP-to-DVB-T modulator feature an integrated multiplexing core for PID management?
Yes, the HDC-5008T incorporates a powerful internal digital multiplexer core. It enables operators to demultiplex incoming IP transport streams, perform precise PID filtering and PID remapping, inject custom descriptors, and freely assign selected television or radio programs into any of the 8 available DVB-T output carriers.
Which channel bandwidths and COFDM parameters are supported by the modulation layer?
The integrated digital modulator is fully compliant with standard DVB-T specifications. It supports configurable channel bandwidths of 6 MHz, 7 MHz, or 8 MHz, alongside adjustable constellation profiles (QPSK, 16QAM, 64QAM) and guard intervals, ensuring total compatibility with regional terrestrial broadcasting rules and standard digital TV tuners.
Can the HDC-5008T parse, modify, and regenerate PSI/SI transport stream metadata tables?
Yes. Because it features a high-performance multiplexing framework, the system automatically parses and rebuilds the necessary PAT, PMT, NIT, and SDT metadata tables in real time. Through the administrative layout, engineers can manually customize service names, modify provider strings, and assign Logical Channel Numbering (LCN) to deliver a professionally structured channel guide to the end user.
What is the RF output frequency range and signal quality metrics delivered by this device?
The agile RF output section covers the standard digital terrestrial television spectrum from 50 MHz up to 960 MHz. The hardware is optimized to deliver a superior MER (Modulation Error Ratio) and exceptionally low phase noise, preventing signal pixelation or packet dropouts across complex corporate or hospitality splitting matrices.
How is remote configuration and real-time status monitoring executed for the HDC-5008T?
System provisioning, IP input stream routing, channel multiplexing matrices, and DVB-T RF modulation settings are managed exclusively via an embedded WebGUI using a standard internet browser through a dedicated, independent Ethernet management interface. This provides network operators with a highly secure, direct, and responsive web-based control plane.
What physical chassis form factor and power specifications are utilized for the HDC-5004/5008T architecture?
Enclosed in a rugged, standard 19-inch 1U rack-mount industrial metal enclosure with an intelligent active cooling fan layout, the HDC-5008T is engineered for continuous 24/7/365 commercial headend uptimes. It features a highly efficient, internal single power supply unit optimized for operational reliability and heat mitigation in local or regional edge deployments.
Downloads
Downloads, Links
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