2124
BUC-Ku04-11.3 v2
Short description
BUC-Ku04-11.3 v2 is block up-converter with fixed output power P1dB 4 W (ALC power: 400 mW) and LO of 11.3 GHz.
Our BUC operates with up to 25 carriers and has built-in reference of 10 MHz;
and ALC with 25 dB range;
IP Ctrl (by order)
+ LED status indication at the rear side.
Request for customized equipment
-
Description
-
Downloads
4 W Ku-band block up-converter with LO of 11.3 GHz BUC-Ku04-11.3 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-Ku04-11.3 v2 has output flange of PBR120 type and can be used with regular radio-relay link (directional) or broadcast (sector and OMNI) antennas. BUC-Ku04-11.3 v2 supports all modulation types up to 32APSK and 256QAM (you may choose the modulation type while filling the “customized equipment” form). BUC-Ku04-11.3 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-Ku04-11.3 v2 is locked by PLL with internal frequency reference). BUC-Ku04-11.3 v2 provides 12.25 – 13.25 GHz output frequency range (bandwidth in Ku-band) for 950-1950 MHz input frequency range (bandwidth in L-band).
LO: 11.3 GHz IN: 950 – 1950 MHz OUT: 12.25 – 13.25 GHz
KEY FEATURES:
- Output flange: PBR120
- Output power (P1dB, min): 4 W
- Output frequency range: 12.25 – 13.25 GHz
- Input frequency range: 950 – 1950 MHz
- Gain (min): 56 dB
- Highly stable internal frequency reference
- LO is locked by PLL with internal frequency reference
- IMD3 level at ALC output power (the lowest value): -37 dBc max
- Operates with up to 25 carriers
- Supported modulation types: up to 32APSK and 256QAM
| Input parameters: | |
|---|---|
| Input Frequency range | 950 – 1950 MHz |
| Input impedance | 50 Ohm |
| Input level, max | -15 dBm |
| Input VSWR, max | 1.5 |
| Input interface | N-type Female |
| ALC rage, min | 25 dB |
| ALC threshold level | -30 dBm |
| Local Oscilator: | |
| LO frequency | 11300 MHz |
| LO Phase noise: | |
| @1 kHz | -80 dBc/Hz |
| @10 kHz | -85dBc/Hz |
| @100 kHz | -100dBc/Hz |
| LO instability | ± 2ppm |
| Output parameters: | |
| Output frequency range | 12250 – 13250 MHz |
| Output Power @P1dB | 4 W |
| ALC Output Power | 400 mW |
| Gain, min | 56 dB |
| IMD3 level at ALC Output Power, max | -37 dBc |
| Output interface | Waveguide WR75, Flange PBR120 |
| Output VSWR, max | 2 |
| Frequency Response: | |
| Flatness over Full Band | ±1.5 dB |
| Spurious: | |
| In-band @P1dB, max | -55 dBc |
| Out-Band, max | -30 dBm |
| LO leakage at ALC output power, max | -40 dBm |
| Image rejection, min | 60 dB |
| Power supply: | |
| Input voltage | 18 VDC – 30 VDC, nominal 24 VDC |
| Power consumption, max | 17 W |
| Environmental: | |
| Operating temperature | -40℃ to +50℃ (-40℉ to +122℉) |
| Storage temperature | -60℃ to +80℃ (-76℉ to +176℉) |
| Operating humidity | 100%, non‐condensing |
| Mechanical: | |
| Dimensions (W x H x D) | 104x89x157 mm |
| Weight | 1.15 kg |
BUC-Ku04-11.3 v2.0 is a 4 W Ku-band Block Upconverter optimized for DVB-S/S2 broadcast uplinks, MVDS distribution systems and satellite repeater networks. Featuring solid-state reliability and compact form, it provides efficient signal transmission for professional satellite applications.
Equipped with a PLL-locked 11.3 GHz LO offering ±2 ppm stability and low phase noise of −85 dBc/Hz @10 kHz, the BUC-Ku04-11.3 v2.0 supports advanced modulation formats up to 32APSK and 256QAM. Its superior spectral purity and linearity ensure reliable DVB-S2 Ku-band performance in high-demand environments.
✅ Engineered for outdoor deployment
The BUC-Ku04-11.3 v2.0 comes in an IP65 weatherproof enclosure for long-term outdoor use. With WR75 PBR120 flange RF output and N-type Female IF input, it integrates seamlessly into broadcasting infrastructures and uplink stations.
✅ Support for up to 25 carriers
This multicarrier Ku-band transmitter handles up to 25 carriers with clean RF performance. With in-band spurious ≤−55 dBc and LO leakage ≤−40 dBm, it ensures stable and interference-free transmission.
✅ High-power efficiency and performance
With 4 W output power, 56 dB gain and ≤17 W power consumption, the BUC-Ku04-11.3 v2.0 offers excellent efficiency for DVB-S2 broadcast uplinks, ensuring reliability under continuous operation.
🛠️ The BUC-Ku04-11.3 v2.0 is designed for high-power broadcast uplink amplifiers, satellite repeater stations and MVDS transmission systems requiring stable, efficient Ku-band conversion.
🛒 Available now, the BUC-Ku04-11.3 v2.0 is ready for deployment in professional DVB-S2 Ku-band broadcasting infrastructures.
📌 Key features
-
4 W Ku-band Block Upconverter
Delivers robust RF performance with 4 W output power, ideal for professional broadcasting and satellite uplink systems.
-
PLL-stabilized 11.3 GHz LO
Ensures frequency accuracy and stability, minimizing drift and supporting DVB-S2 modulation standards.
-
56 dB gain with 25 dB ALC range
Wide dynamic range ensures consistent output across varied IF inputs, protecting system components.
-
Integrated 10 MHz reference
Provides precise synchronization with broadcast infrastructures, eliminating the need for external references.
-
Industry-standard RF/IF interfaces
WR75 PBR120 flange for RF and N-type Female for IF input guarantee compatibility with broadcast setups.
-
Spectral purity and linearity
Low IMD3 and excellent spurious suppression make it ideal for advanced modulation formats like 32APSK and 256QAM.
-
Compact and rugged build
Weighing just 1.15 kg with IP65 protection, it is suited for both fixed installations and mobile broadcasting.
⚙️ Main functions
-
IF to Ku-band upconversion
Converts 950-1950 MHz input into stable 12.25-13.25 GHz Ku-band output with high accuracy.
-
Automatic Level Control (ALC)
Keeps output power at 4 W with a wide 25 dB control range, ensuring reliable multicarrier operation.
-
High-linearity amplification
Maintains clean signals and supports DVB-S2 standards with minimal distortion.
-
Energy-efficient solid-state design
Consumes ≤17 W while delivering high output, reducing operational costs for broadcasters.
-
Long-term frequency stability
PLL locking and internal reference guarantee precise synchronization and reliable long-term performance.
🧩 Applications
-
VSAT and DSNG uplinks
Provides 4 W output power for mobile and fixed satellite terminals.
-
MVDS broadcasting
Ensures reliable performance in multichannel terrestrial video distribution.
-
TV repeater stations
Enables clean DVB-S2 rebroadcasting with 11.3 GHz LO stability.
-
Outdoor broadcast units
Rugged IP65 design supports OB vans and mobile transmission setups.
-
OEM integration
Suitable for custom broadcasting systems requiring compact and powerful Ku-band BUCs.
-
Harsh environment operations
Designed to operate from −40℃ to +50℃ with full humidity protection.
-
Teleport hubs
Simplifies integration into teleport infrastructures with standard WR75 flange.
-
Remote monitoring options
Supports LED indicators and optional IP control for real-time supervision.
💡 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-Ku04-11.3 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-Ku04-11.3 v2.0 is available with customized parameters by order.
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.
Documentation


