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DVB-С 8-ASI Scrambler

Short description

DVB-С 8-ASI Scrambler is professional solution for multichannel digital video broadcasting: it is broadcasting server with own memory and integrated multiplexer, scrambler and modulator (up to 4 carriers), all in one, powerful conditional access system

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    DVB-С 8-ASI Scrambler forms a group output RF stream including up to 4 carriers. Each carrier can include its own program packet.

    The DVB-С 8-ASI Scrambler can work in the following modes: 1RF, 2RF or 4RF. Up to 4 frequencies of RF output can be set in the range of 36-850 MHz.

    DVB-С 8-ASI Scrambler is the hardware broadcasting server (able to work with subscribers’ data-base while the PC is off), it includes as well as TS remultiplexer (it has 8 ASI inputs) and QAM modulator (QAM 32/64/128/256, symbol-rate 1-6.9 Msymb/s).

    DVB-С 8-ASI Scrambler has been designed for using in cable TV network. It is easy in operation and cost effective system.

    Thus, with the help of our DVB-С 8-ASI Scrambler (in which are integrated four remultiplexers, four scramblers and four DVB-C modulators) you are able to organize CATV network for broadcasting up to 30 programs including PC channels monitoring system.

     The range of the output frequency adjustment for 3 configuration variants: 1RF, 2RF, 4RF

    Examples of packages spectrum arrangement within 48 MHz of 4RF (a) and 2RF (b)

     

    KEY FEATURES:

    • DVB-С 8-ASI Scrambler has integrated remultiplexer with 8 ASI inputs — which allows you to form program packages from 8 independent transport streams for further broadcasting
    • DVB-С 8-ASI Scrambler has quadruple modulator — which allows you to form 1, 2 or 4 different carriers at one RF output at the same time
    • MER > 36 dB
    • BER < 1e-8
    • Supports both SD (Standard Definition) and HD (High Definition, 1920x1080i) channels, H.264 / H.265 standard
    • Typical DVB-C set-top-boxes can be used as subscribers’ receivers
    • 90% of STBs support the working with DVB-С 8-ASI Scrambler
    • Connection to PC for management: Ethernet (100 Mbit /s), RJ45
    • 1Gbit data port for 5 IP outputs (UDP/RTP protocol)

    MAIN FUNCTIONS:

    • Works 24/7/365
    • Supports state-of-art broadcasting standards
    • Automatic and manual PID insertion
    • EPG, OTA, LCN support, Network search
    • Generation of output stream with up to 92 PID selected from 8 ASI inputs
    • Optional enabling/disabling of stuffing in the IP output
    • Modulation type: QAM; constellation 32/64/128/256
    • The ability to set the frequency of the output IF signal in the range of 36-900 MHz
    • Symbol rate and level of the output RF signal adjustment
    • All settings, including modulator settings and device upgrading, are carried out via LAN (Ethernet 100)
    • 5 IP outputs can be used for IP streaming by UPD/RTP protocol, as well as for output or input TS monitoring at your PC
    • Parameters indication on the LCD
    • Quick replacement of the device in the system without stream rescan

     

    Inputs/Outputs
    Input Interface 8×DVB-ASI inputs; 1×IP input
    Output Interface 2×DVB-ASI outputs, 1×RF output, 1×100M IP output
    Modulation parameters
    Frequency Range 36-900 MHz
    Modulation Type QAM; constellation 32/64/128/256
    Output Signal Bandwidth less 8 MHz
    Adjustable Symbol Rate 1-6.9 Msym/s, 1 ksym/s step
    Output RF Signal Level 80-100 dBuV, adjustment -10 dBuV
    IP stream
    IP RTP, UDP protocol support
    Power Supply
    Power ~220V+-20%
    Power Consumption Max 18 W
    Others
    Size 19”, 1U 480×45×180 (mm)
    Weight 3.5 Kg

    DVB-C 8-ASI Scrambler is a professional digital cable TV broadcasting solution featuring an integrated 8-input ASI remultiplexer, powerful DVB-C scrambler and multi-carrier QAM modulator. Designed for high-density CATV head-end systems, it supports up to four independent RF carriers (1RF/2RF/4RF modes) within the 36–900 MHz frequency range, allowing operators to broadcast multiple program packages simultaneously across different channel slots.

    This DVB-C 8-ASI Scrambler supports both SD and HD video services up to 1920×1080i encoded in H.264 / H.265, offering exceptional flexibility for modern QAM networks. With MER performance exceeding 36 dB and BER < 1e-8, it ensures stable, broadcast-grade cable transmission. More than 90% of DVB-C STBs are compatible, allowing seamless integration into existing CATV infrastructures.

    ✅ Optimized for multi-carrier DVB-C broadcasting

    The DVB-C 8-ASI Scrambler is built for digital cable networks requiring stable multi-carrier QAM modulation. It supports 1RF, 2RF and 4RF operating modes, giving operators flexible channel planning options for regional CATV systems, hotel TV networks and IPTV-over-QAM platforms.

    ✅ Integrated remultiplexer, scrambler and QAM modulator

    Combining ASI remultiplexing, scrambling and DVB-C RF modulation in one 1U chassis simplifies head-end architecture and reduces system footprint. The device supports PSI/SI processing, PID remapping, EPG, OTA and LCN insertion for fully compliant DVB-C service generation.

    ✅ Hybrid RF and IP output architecture

    With 8 ASI inputs, 5 IP outputs and multi-carrier RF output, the device supports simultaneous cable broadcasting and IP-based transport stream delivery. This enables TS monitoring, IPTV integration and flexible hybrid deployment in modern digital TV infrastructures.

    🛠️ The DVB-C 8-ASI Scrambler includes an intuitive Ethernet-based management interface for full control of QAM modulation, RF frequency selection, symbol rate adjustment, PID mapping, PSI/SI/EPG settings and scrambler parameters. Engineers can perform TS monitoring, IP output analysis and device upgrades directly from PC via LAN, making the system easy to maintain in large CATV head-ends.

    🛒 This DVB-C 8-ASI Scrambler is ideal for cable operators, regional broadcasters, IPTV-over-QAM networks, hotel TV systems and secure pay-TV platforms. Offering multi-carrier output, high MER stability and full DVB-C compliance, it delivers cost-effective, high-reliability performance for modern digital cable distribution.

    📌 Key features

    • 8-input ASI remultiplexer for DVB-C content aggregation

    Aggregates up to eight independent DVB-ASI transport streams into configurable program packages for cable broadcasting. Supports full PID extraction, stream filtering, PSI/SI regeneration and flexible multiplex creation. Ideal for CATV head-ends needing high-density remultiplexing.

    • 1RF/2RF/4RF multi-carrier DVB-C QAM modulator

    Generates up to four QAM carriers simultaneously within 36–900 MHz, enabling multi-channel RF distribution from a single output. Supports QAM32, QAM64, QAM128 and QAM256 constellations with adjustable symbol rates from 1 to 6.9 Msym/s for maximum flexibility in channel planning.

    • Broadcast-grade transmission quality

    Delivers stable DVB-C RF output with MER greater than 36 dB and BER less than 1e-8. Ensures high-quality reception across long cable distances and complex CATV infrastructures. Suitable for reliable continuous QAM broadcasting.

    • Full H.264/H.265 SD and HD service support

    Compatible with modern HD and legacy SD systems using H.264 and H.265 video compression. Ensures efficient bandwidth usage while maintaining compatibility with over 90% of DVB-C receivers. Suitable for current and transitional cable TV networks.

    • Hybrid RF and IP output architecture with 5 IP ports

    Supports UDP/RTP unicast and multicast streaming for parallel IP distribution or TS monitoring. Enables combined CATV and IPTV head-end deployment with real-time output analysis and flexible network routing.

    ⚙️ Main functions

    • 24/7 continuous QAM broadcasting for CATV networks

    Engineered for round-the-clock operation with stable QAM processing, remultiplexing and scrambling. Ideal for operators requiring uninterrupted service and high system reliability in professional cable networks.

    • Automatic and manual PID processing with PSI/SI generation

    Supports automatic and manual PID insertion, PID filtering and full editing of PAT, PMT, NIT and SDT tables. Ensures DVB-C compliance and proper service organization for large program packages.

    • EPG, OTA and LCN support for subscriber convenience

    Automatically inserts EPG data, performs OTA updates and manages logical channel numbering. Delivers viewer-friendly channel lists and metadata across all four carriers.

    • LAN configuration, firmware upgrade and device synchronization

    All modulation, remultiplexing, IP output and scrambling settings are controlled via Ethernet. Firmware updates and service adjustments can be executed remotely without interrupting broadcasting.

    • Real-time LCD diagnostics and fast device replacement

    The front-panel LCD displays operational parameters and alarms, allowing instant status verification. Supports quick device replacement without rescanning subscriber receivers.

    🧩 Applications

    • CATV head-end broadcasting and QAM distribution

    The DVB-C 8-ASI Scrambler is optimized for professional cable TV networks requiring multi-carrier QAM output. It enables stable SD and HD broadcasting, efficient service multiplexing and flexible channel planning. Ideal for regional CATV operators and ISPs offering DVB-C services.

    • Digital pay-TV and conditional access networks

    Supports scrambling, PID control, PSI/SI processing and reliable 24/7 operation for secure pay-TV systems. Works with typical DVB-C STBs and CAS or CI ecosystems, making it suitable for subscription-based broadcasting.

    • IP and RF hybrid networks with IPTV-over-QAM

    With 5 IP outputs, the device enables simultaneous QAM broadcasting and IPTV distribution. Perfect for hotels, campuses, operators migrating from RF to IP and combined OTT or cable infrastructures.

    • Multi-carrier QAM RF broadcasting for local networks

    Suitable for in-house TV systems, hospitality networks and enterprise head-ends requiring up to four RF carriers. Provides robust RF performance, excellent MER and BER, and precise spectrum control.

    💡 Why you should buy from us❓

    • 1.5 years warranty
    • 7 years after-sales support
    • Remote support team of engineers
    • Discount program for regular customers 🎁

    💬 Contact Us

    For additional details or assistance regarding the DVB-C 8-ASI Scrambler, feel free to contact our team. We provide professional consultation and after-sales support to help with installation and setup.

    Taking into consideration that we (UMT LLC) are developer and system integrator, also do not stop on our technical growth and improvement, know that view of all our devices and equipment including their technical parameters may be different from pictures presented on website and parameters listed on each device webpage.
    Note! All details customer has to confirm in advance during ordering and before payment. Those parameters that were not specified and / or were not agreed while ordering will be implemented as basic at the discretion of the manufacturer. Each our customer has 1.5 year warranty and 7 year aftersales support for whole range of our products.

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