1870

BUC-K-1-23.55

Short description

 DVB-S/S2 K-band BUC-K-1-23.55 with 1 W output power, 47 dB gain, WR34 flange, PLL LO 23.55 GHz and internal 10 MHz reference. Available for satellite and MVDS broadcasting projects.

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BUC-K-1-23.55 is designed for MVDS TV broadcasting systems application in accordance with DVB-S/S2 or DVB-C and operates with up to 25 carriers. BUC-K-1-23.55 has output flange of PBR260 type (in accordance with WR34) and can be used with regular radio-relay link (directional) or broadcast (sector and OMNI) antennas.

LO: 23.55 GHz  IN: 950-1450 MHz  OUT: 24.5-25.0 GHz

BUC-K-1-23.55 supports all modulation types up to 32APSK and 256QAM. BUC-K-1-23.55 has the best linearity parameters to ensure the stability of the output frequency and low IMD3 level. BUC-K-1-23.55 has input frequency range of 950-1450 MHz (L-band) and provides 24.5-25.0 GHz output frequency range (K-band).

Input parameters
Input frequency range, MHz 950 – 1450
Input impedance, Ohm 50
Input level, max, dBm -2
Input VSWR, max  1.5
Input interface N-type, female
ALC range, min, dB 25
ALC threshold level, dBm -27
Local oscillator
LO frequency, GHz 23.55
LO phase noise, dBc/Hz :
@1 kHz -80
@10 kHz -85
@100 kHz -100
LO instability, ppm ± 2
Output parameters
Output frequency range, GHz 24.5-25.0
Output power @P1dB, W 1
ALC output power, mW 100
Gain, min, dB 47
IMD3 level at ALC output, dBc power, max -37
Output interface waveguide WR34, flange PBR260
Output VSWR, max 2
Frequency response
Flatness over Full Band, dB ± 1.5
Spurious
In-band P1dB, max, dBc -55
Out-Band, max, dBm -30
LO leakage at ALC output, dBm power, max -40
Image rejection, min, dB 60
Power supply
Input voltage, VDC 18-30 (nominal 24)
Power consumption, max, W 20
Environmental
Operating temperature, oC -40 … +50
Storage temperature, oC -60 … +80
Operating humidity, % 100 (non-condensing)
Mechanical
Dimensions (W x H x D), mm 121×130×79
Weight, kg 1.51

BUC-K-1-23.55 is a high-stability K-band Block Upconverter designed for DVB-S/S2, DVB-C and MVDS TV broadcasting applications. As a solid-state K-band BUC transmitter, it operates with up to 25 carriers and integrates a PLL local oscillator at 23.55 GHz, ensuring frequency precision and low phase noise. Supporting advanced modulation formats such as 32APSK and 256QAM, this compact K-band SSPA amplifier delivers excellent linearity, low IMD3 and superior spurious rejection.

The BUC-K-1-23.55 K-band BUC provides 1 W output power at P1dB (100 mW ALC output) and ≥47 dB gain. Its internal 10 MHz reference and ALC (25 dB dynamic range) maintain output stability, making it a dependable solution for DVB-S2 uplinks, VSAT, DSNG and TV repeater stations. With WR34 waveguide (PBR260 flange) output and N-type female IF input, it integrates easily into broadcast infrastructures requiring compact, professional-grade K-band Block Upconverters.

Engineered for outdoor deployment

The BUC-K-1-23.55 Block Upconverter is built with a robust, weatherproof enclosure, ensuring reliable operation in harsh climates. With WR34 flange output and N-type IF input, this outdoor K-band BUC transmitter supports both fixed and mobile broadcast units.

Multicarrier operation with DVB-S2 support

Capable of handling up to 25 carriers, the BUC-K-1-23.55 RF K-band amplifier ensures low phase noise (−85 dBc/Hz @10 kHz) and excellent spectral purity (spurious ≤−55 dBc), making it ideal for professional multicarrier satellite transmission.

Compact, lightweight and efficient

With dimensions of 121×130×79 mm and weight of only 1.51 kg, this compact K-band BUC SSPA combines 1 W linear output with ≤20 W power consumption. It is optimized for flyaway systems, tactical uplinks and space-limited broadcasting units.

🛠️ Whether you need a K-band BUC with PLL LO 23.55 GHz, a low-power K-band RF amplifier with WR34 flange, or a K-band Block Upconverter for DSNG and repeater stations, the BUC-K-1-23.55 provides stability, compactness and professional reliability.

🛒 The BUC-K-1-23.55 is available for order, offering engineers a solid-state K-band Block Upconverter tailored for DVB-S/S2 uplinks and MVDS broadcasting.

📌 Key features

  • Solid-state K-band BUC-K-1-23.55 transmitter

This 1 W K-band BUC amplifier ensures reliable DVB-S2 broadcasting with stable gain, low distortion and compact integration for MVDS, repeater stations and satellite uplinks.

  • PLL-stabilized 23.55 GHz local oscillator

The BUC-K-1-23.55 Block Upconverter uses a PLL-locked LO at 23.55 GHz with ±2 ppm stability, delivering minimal frequency drift and phase noise levels down to −85 dBc/Hz @10 kHz.

  • 1 W P1dB output power with ALC control

This K-band SSPA amplifier provides 1 W output at P1dB and 100 mW ALC power with 25 dB ALC range, ensuring stable operation across variable input levels.

  • WR34 (PBR260) waveguide and N-type IF input

The BUC-K-1-23.55 Block Upconverter offers industry-standard interfaces with WR34 flange RF output and N-type female IF input for easy integration into uplink chains.

  • Superior RF performance

Spurious rejection (≤−55 dBc), LO leakage (≤−40 dBm) and IMD3 ≤−37 dBc at ALC output power ensure clean spectral purity in demanding K-band transmission.

⚙️ Main functions

  • IF-to-K-band upconversion

The BUC-K-1-23.55 Block Upconverter converts IF signals (950-1450 MHz) to K-band output (24.5-25.0 GHz), enabling compatibility with DVB-S/S2 modulators.

  • ALC-based power regulation

The integrated ALC maintains consistent output power, protecting transmission components and stabilizing multicarrier K-band BUC applications.

  • Stable operation with PLL LO and 10 MHz reference

The internal 10 MHz reference ensures frequency synchronization, while the PLL-locked 23.55 GHz LO maintains long-term frequency accuracy for professional uplinks.

  • High-linearity amplification and filtering

Internal filters and amplifiers ensure linear operation, reduced distortion and low spurious output, critical for broadcast and telecom-grade K-band systems.

🧩 Applications

  • VSAT terminals and DSNG uplinks

The BUC-K-1-23.55 Block Upconverter is ideal for small VSAT terminals and mobile DSNG broadcasting platforms requiring compact and reliable K-band amplification.

  • MVDS broadcasting

A perfect K-band BUC transmitter for MVDS applications, supporting DVB-S2/C modulation with stable output and low spectral noise.

  • TV repeater stations

The BUC-K-1-23.55 enables high-quality signal repeaters for terrestrial and satellite rebroadcast systems requiring precise frequency control.

  • Flyaway and tactical systems

Lightweight and rugged, this compact K-band SSPA amplifier fits mobile flyaway kits and tactical communication setups.

  • OEM system integration

The BUC-K-1-23.55 K-band Block Upconverter is designed for OEM and integrators seeking scalable, carrier-grade hardware.

💡 Why you should buy from us❓

  • 1.5 years warranty
  • 7 years after-sales support
  • Remote technical assistance
  • Discount program for regular clients 🎁

💬 Contact Us

For detailed information or assistance regarding the BUC-K-1-23.55, contact our team. We provide engineering support, customization options and after-sales services to ensure maximum efficiency in your broadcasting systems.

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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