4 W Ku-band block up-converter with LO of 11.8 GHz BUC-Ku04-11.8 v2 is designed for MVDS TV broadcasting systems application in accordance with DVB-S/S2 or DVB-C standards (use “Customized” button to choose needed parameters) and operates with up to 25 carriers. BUC-Ku04-11.8 v2 has output flange of PBR120 type and can be used with regular radio-relay link (directional) or broadcast (sector and OMNI) antennas. BUC-Ku04-11.8 v2 supports all modulation types up to 32APSK and 256QAM (you may choose the modulation type while filling the “customized equipment” form). BUC-Ku04-11.8 v2 has the best linearity parameters to ensure the stability of the output frequency and low IMD3 level (these parameters are very important for high quality modulation, therefore the local oscillator of BUC-Ku04-11.8 v2 is locked by PLL with internal frequency reference). BUC-Ku04-11.8 v2 provides 12.75 – 13.75 GHz output frequency range (bandwidth in Ku-band) for 950-1950 MHz input frequency range (bandwidth in L-band).
BUC-Ku04-11.8 v2.0 is a professional 4 W Ku-band Block Upconverter developed for MVDS broadcasting, DVB-S2 uplinks and satellite repeater systems. It provides solid-state reliability, clean RF performance and outdoor-ready operation for demanding broadcast environments.
Featuring a PLL-locked 11.8 GHz local oscillator with ±2 ppm frequency stability and low phase noise of −85 dBc/Hz @10 kHz, the BUC-Ku04-11.8 v2.0 supports all DVB-S/S2 modulation formats including 32APSK and 256QAM. Its high spectral purity and excellent linearity ensure consistent performance across multiple carriers.
✅ Engineered for outdoor deployment
The BUC-Ku04-11.8 v2.0 is housed in an IP65 weatherproof enclosure for continuous outdoor operation. With WR75 PBR120 flange RF output and N-type Female IF input, it ensures quick and reliable integration into satellite and broadcast infrastructures.
✅ Support for up to 25 carriers
As a multicarrier Ku-band transmitter, the unit supports up to 25 carriers with superior in-band spurious suppression ≤−55 dBc and LO leakage ≤−40 dBm, ensuring stable uplink performance.
✅ High-power efficiency and performance
Delivering 4 W P1dB output, 56 dB gain and ≤17 W consumption, the BUC-Ku04-11.8 v2.0 balances strong RF performance with high energy efficiency, making it ideal for DVB-S2 uplinks and MVDS broadcasting.
🛠️ The BUC-Ku04-11.8 v2.0 is tailored for broadcast uplink amplifiers, repeater systems and MVDS distribution where stable high-power Ku-band transmission is critical.
🛒 Available now, the BUC-Ku04-11.8 v2.0 is ready for deployment in DVB-S2 Ku-band broadcast and satellite transmission systems.
📌 Key features
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4 W Ku-band Block Upconverter
Provides powerful RF transmission for satellite broadcasting, MVDS links and repeater stations.
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PLL-stabilized 11.8 GHz LO
Ensures long-term frequency accuracy with low drift and minimal phase noise.
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56 dB gain with 25 dB ALC range
Offers reliable output control and protection for multi-carrier applications.
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Integrated 10 MHz reference
Guarantees precise system synchronization without external reference needs.
WR75 PBR120 flange for RF output and N-type Female IF input enable easy installation.
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Spectral purity and linearity
Low IMD3 and clean in-band spurious make it suitable for advanced DVB-S2 modulation schemes.
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Compact and rugged design
Weighing 1.15 kg and IP65-protected, the unit is built for both stationary and mobile deployments.
⚙️ Main functions
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L-band to Ku-band upconversion
Accurately converts 950-1950 MHz input into 12.75-13.75 GHz Ku-band output for DVB-S2 broadcasting.
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Automatic Level Control (ALC)
Stabilizes output at 4 W with a 25 dB dynamic range, protecting signal integrity.
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High-linearity amplification
Delivers distortion-free output, supporting 32APSK and 256QAM signals.
Consumes ≤17 W, reducing operating costs in broadcast networks.
PLL and internal reference ensure precise frequency control for stable transmission.
🧩 Applications
Supplies 4 W power for stable mobile and fixed terminals.
Designed for clean terrestrial video distribution via Ku-band.
Maintains precise synchronization for rebroadcast systems.
Rugged build supports live event OB vans and field links.
Ideal for system builders requiring high-power Ku-band BUC modules.
Performs reliably in −40℃ to +50℃ with full humidity tolerance.
Standard WR75 flange ensures compatibility with professional uplink systems.
LED status indicators and optional IP control enable efficient operation.
💡 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 BUC-Ku04-11.8 v2.0, 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. The BUC-Ku04-11.8 v2.0 is available with customized parameters by order.
