16-channel combiner-equalizer of UMT production is active device specially designed to combine 16 independent IF carriers (L-band, frequency range of 950-2150 MHz) with power adjustment and AGC for each channel.
16-channel combiner-equalizer has 16 RF inputs for 16 IF carriers and 1 or 2 independent outputs. All inputs and outputs work in L-band. 1st output contains full spectrum combined from 16 inputs and is used for further signal transmitting. The 2d output is used for signal controlling (can be added by request) and has up to 30 dB lower signal power than the 1st input.
16-channel combiner-equalizer can be used in MVDS head-end, professional TV link and TV repeater stations due to its features such as automatic gain control (AGC) which provides high stability of output RF-signal power. The case of the 16-channel combiner-equalizer is designed for using in standard 19″ rack.
16-Channel Combiner-Equalizer is a high-density active L-band combining system designed to aggregate sixteen independent IF carriers (950–2150 MHz) into a stable, level-aligned broadband output. Each of the sixteen input channels features automatic gain control (AGC) and precise manual power adjustment, ensuring perfectly equalized carrier levels even when feeding from different modulators or receivers. Engineered for modern MVDS, SMATV and satellite-IF infrastructures, it delivers low intermodulation distortion, excellent group-delay uniformity and high output linearity required for professional digital broadcasting.
All sixteen RF inputs operate across the full L-band range and feed into a unified output, while an optional auxiliary monitoring port provides a –20 dB signal for real-time diagnostics. This allows operators to inspect the combined spectrum without interrupting the primary RF path. Housed in a compact 1RU 19-inch chassis, the device is optimized for 24/7 continuous operation in demanding RF headends, repeater stations and multi-carrier distribution systems.
✅ High-density 16-carrier L-band combining
The device supports aggregation of sixteen independent L-band carriers across the 950–2150 MHz range, enabling large-scale IF distribution for MVDS, SMATV and broadband TV systems. Each channel is processed with precision to maintain optimal spectral uniformity. This ensures downstream transmission systems receive a clean, stable and predictable RF signal.
✅ AGC-stabilized output with per-channel equalization
Each input features both manual level adjustment and AGC, ensuring constant and well-balanced output regardless of input variations. This eliminates carrier imbalance problems common in multi-modulator setups. The result is a highly stable RF output suitable for sensitive digital broadcast equipment.
✅ Engineered for professional 24/7 RF headend operation
Designed for mission-critical broadcasting environments, the unit ensures excellent long-term stability and low intermodulation performance. Its hardware platform provides high MTBF and reliable continuous operation. This makes it ideal for headends requiring uninterrupted service and strict RF performance consistency.
🛠️ Thanks to its advanced AGC architecture, the 16-Channel Combiner-Equalizer maintains stable output power even under fluctuating input conditions. This ensures downstream DVB modulators, regenerators, upconverters and transmission amplifiers receive consistent and properly conditioned RF signals. By preserving digital modulation quality, the unit minimizes BER degradation and maintains clean COFDM, QAM, APSK and QPSK carrier structures within complex multiservice networks.
🛒 This high-capacity 16-Channel Combiner-Equalizer is the ideal choice for RF engineers building large MVDS headends, SMATV networks, IF matrices and multi-carrier satellite distribution systems. The availability of F-type or N-type connectors, combined with excellent linearity and low IMD, ensures seamless integration into both 50 Ω and 75 Ω infrastructures.
📌 Key features
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Automatic gain control (AGC)
AGC equalizes variations in input power, stabilizing the combined output for clean, disturbance-free distribution. It helps protect downstream equipment from overload or imbalance conditions. This ensures continuous reliability in networks with dynamic input sources.
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Independent manual power adjustment
Each channel includes manual attenuation, allowing precise alignment of all IF carriers. Engineers can easily correct uneven levels from modulators, IRDs or receivers. This ensures a flat and consistent output spectrum for high-density headends.
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Low intermodulation distortion (low IMD)
The architecture minimizes unwanted IMD products, preserving the integrity of digital transport streams. This protects QAM, COFDM, QPSK and APSK signals from degradation. It is essential for maintaining low BER and high MER in professional RF chains.
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High output linearity and excellent group delay stability
High linearity ensures carriers remain undistorted even at the full 16-channel load. Stable group delay prevents symbol timing distortion, ensuring high-quality DVB transmission. This is especially important for large MVDS or SMATV networks carrying multiple multiplexes.
⚙️ Main functions
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Combining sixteen independent L-band IF carriers
The unit merges up to 16 modulated carriers into a single broadband output without degrading spectral quality. The AUX output enables real-time monitoring without affecting the main feed. This is essential for professional maintenance and continuous signal verification.
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Stabilization and equalization of multi-carrier RF signals
By applying AGC and equalization, the device ensures a consistent combined output suitable for modulators, regenerators and transmission systems. It helps eliminate fluctuations caused by uneven input conditions. This dramatically improves system stability in multi-channel networks.
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Low-distortion RF conditioning for digital broadcasting
The combiner maintains strict linearity and low IMD to preserve digital modulation parameters. This protects against constellation degradation, symbol errors and synchronization issues. It is ideal for DVB-T/T2, DVB-C, DVB-S/S2, MVDS and other digital RF systems.
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Reliable continuous 24/7 operation in RF headends
Built for uninterrupted service, the unit offers industrial-grade durability and smooth thermal performance. It integrates easily into 19’’ rack systems with minimal maintenance requirements. Suitable for high-demand installations where uptime is critical.
🧩 Applications
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MVDS broadcasting and multichannel IF infrastructure
Handles dense carrier combining for MVDS uplinks, repeater networks and distribution hubs. Ensures uniform RF levels for stable DVB-S/S2, DVB-T/T2 and DVB-C transport streams. Ideal for operators scaling to high-capacity systems.
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Professional TV link, SMATV and repeater stations
Supports equalization and stabilization of carriers used in repeater and relay systems. Ensures reliable long-distance RF delivery with minimal distortion. Maintains consistent performance across varied environmental and load conditions.
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Large RF distribution networks, campuses, hotels and CATV systems
Enables clean and stable multi-carrier distribution in large hospitality, enterprise or residential networks. Reduces maintenance through built-in AGC and low-interference signal conditioning. Ensures stable operation in long cable distribution systems.
💡 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 16-Channel Combiner-Equalizer, feel free to contact our team. We provide professional consultation and aftersales support to help with installation and setup, ensuring you get the most out of your broadcasting equipment.
