1994

PLL LNB with AGC L.O. 11.25

Short description

PLL LNB with AGC L.O. 11.25 is professional low noise block down converter with automatic gain control, wide dynamic range of up to 50 dB (biggest among any other LNB). AGC range of 25 dB, LO instability of 50 kHz, Gain (min) of 40 dB.

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UMT presents new PLL LNB with AGC L.O. 11.25.

It is professional LNB which has the following advantages comparing with old one: wide dynamic range – up to 50 dB (biggest among any other LNB). AGC range: 25 dB, LO instability: 50 kHz, Gain (min): 40 dB.

PLL LNB with AGC L.O. 11.25 is professional low noise block down converter with automatic gain control designed for MVDS / MITRIS TV broadcasting systems (links and repeaters) application in which the signal stability is very important. In addition, PLL LNB with AGC has wide dynamic range (power at the input) which is the biggest among other LNBs.

LO: 11.25 GHz       IN: 12.2 – 13.0 GHz       OUT: 950 – 1750 MHz

New PLL LNB with AGC has the following advantages comparing with old one:

  • higher level stability
  • higher frequency stability
  • wider dynamic range – up to 50 dB (biggest among any other LNB)
  • less weight and dimensions
  • less price

 KEY FEATURES:

  • Wide dynamic range (power at the input) – up to 50 dB (biggest among any other LNB)
  • AGC range: 25 dB
  • Waveguide: WR75
  • Flange: PBR120
  • 75 Ohm F-type or 50 Ohm N-type output connector
Input parameters:
Input Frequency range 12.2 – 13.0
Input level range – 65 … -15 dBm
Input VSWR, max 1.8
Input interface Waveguide WR75, Flange UBR120
Local Oscillator:
LO frequency 11.25
LO Phase noise:
@1 kHz -77 dBc/Hz
@10 kHz -87 dBc/Hz
@100 kHz -97 dBc/Hz
LO instability ± 100 kHz (or by order)
Output parameters:
Output frequency range 950 – 1750 MHz
Output Power @P1dB 0 dBm
Gain, min 40 dB
Output interface N/F-type female (by order)
Output impedance 50/75 Ohm
Output VSWR, max 1.8 : 1
Frequency Response:
Flatness over Full Band 3 dB
Flatness over 27MHz Band 0.5 dB
Spurious:
Noise figure given to the input, no more 5.0 dB
LO leakage, max -50 dBm
Image rejection, min 60 dBc
Power Supply:
Input voltage 15 VDC – 30 VDC, nominal 18 VDC
Power consumption, max 5 W
Environmental:
Operating temperature –40℃ to +60℃ (–40℉ to +140℉)
Storage temperature –40℃ to +80℃ (–40℉ to +176℉)
Operating humidity 0% – 95%
Mechanical
Dimensions (W x H x D) 55x38x116 mm
Weight 0.25 kg

 

The Ku-band PLL LNB with AGC LO 11.25 is a professional Low Noise Block Downconverter engineered for high-stability reception in MVDS, MITRIS, CATV and satellite telecom networks. Covering input frequencies of 12.2-13.0 GHz and output range of 950-1750 MHz, it ensures precise frequency downconversion for DVB-S/S2 and DVB-C applications.

With a wide 50 dB dynamic range and 25 dB AGC, this LNB maintains reliable output under variable input levels. The PLL oscillator at 11.25 GHz features ±100 kHz stability and excellent low phase noise performance, enabling stable operation in advanced broadcast infrastructures. Lightweight (0.25 kg), compact and waterproof, it is designed for long-term outdoor deployments.

The Ku-band PLL LNB with AGC 11.25 offers ≥40 dB gain, ≤5 dB noise figure and ≥60 dBc image rejection, delivering reliable signal reception across demanding environments. With WR75 waveguide input, PBR120 flange and selectable F-type 75 Ohm or N-type 50 Ohm output, it integrates seamlessly into modern broadcast and telecom setups.

High-Performance Ku-band PLL AGC LNB 11.25 for Professional Systems

The Ku-band PLL LNB with AGC 11.25 offers ≥40 dB gain, ≤5 dB noise figure and ≥60 dBc image rejection, delivering reliable signal reception across demanding environments. With WR75 waveguide input, PBR120 flange and selectable F-type 75 Ohm or N-type 50 Ohm output, it integrates seamlessly into modern broadcast and telecom setups.

Engineered for outdoor deployment

The rugged, waterproof housing ensures consistent operation in extreme weather conditions from -40 °C to +60 °C. Its compact 0.25 kg design allows easy installation at remote headends and repeaters while maintaining durability under wide humidity ranges up to 95%.

Multi-standard compatibility

The Ku-band PLL AGC LNB 11.25 supports DVB-S, DVB-S2 and DVB-C broadcasting standards, ensuring flexible integration with CATV headends, MVDS/MITRIS rebroadcast networks and professional satellite downlinks.

🛠️ Whether you need a Ku-band PLL LNB with AGC LO 11.25, a professional automatic gain control LNB with 25 dB range, or a compact outdoor Low Noise Block Downconverter with WR75 PBR120 flange, this model provides reliability and precision.

🛒 The Ku-band PLL LNB with AGC LO 11.25 is now available for integration into DVB-S/S2/C, MVDS and MITRIS broadcasting systems.

📌 Key Features

  • Ku-band PLL LNB with AGC and 50 dB wide dynamic range

Handles strong input fluctuations with ease, offering the widest dynamic range among Ku-band AGC LNBs. This ensures stable operation even in high-density multi-carrier networks or fluctuating RF environments.

  • Automatic Gain Control with 25 dB range

Maintains consistent output levels across varying input powers, ensuring reliable reception. The AGC prevents overload of downstream equipment, making it ideal for professional broadcast infrastructures.

  • PLL oscillator LO 11.25 GHz with ±100 kHz stability

Provides precise downconversion with low phase noise, which is essential for DVB-S2 and DVB-C applications. High stability ensures long-term operation without frequency drift, even in challenging environments.

  • Output frequency range 950-1750 MHz with F-type/N-type connectors

Offers flexible connectivity for both 50 Ohm and 75 Ohm systems. This makes integration straightforward in CATV headends, telecom networks and satellite broadcast infrastructures.

  • WR75 waveguide with PBR120 flange input

Ensures reliable mechanical and RF compatibility with professional satellite antennas. This standard interface simplifies installation and guarantees robust performance in Ku-band reception chains.

  • Gain ≥40 dB with flat response and ≤0.5 dB ripple over 27 MHz

Provides stable amplification with low distortion across the full band. This ensures clean signal delivery for multi-carrier operations and advanced modulation schemes.

  • Professional Ku-band AGC LNB with ≤5 dB noise figure

Minimizes noise contribution, enhancing the carrier-to-noise ratio in professional networks. Ideal for telecom and broadcasting systems that require high signal purity.

  • Compact 0.25 kg outdoor-ready design

Lightweight yet rugged, with waterproof housing for reliable outdoor deployment. Perfect for rooftop installations, mobile systems and remote broadcast sites.

⚙️ Main Functions

  • Downconversion from Ku-band (12.2-13.0 GHz) to 950-1750 MHz IF

Converts Ku-band RF signals into L-band intermediate frequencies. This allows seamless compatibility with DVB-S/S2 receivers, CATV systems and rebroadcast infrastructures.

  • AGC-based automatic output control

Ensures stable output power regardless of input signal fluctuations. Protects transmission chains and improves long-term reliability in professional networks.

  • Stable operation with PLL LO 11.25 GHz and low phase noise

Delivers high-frequency precision with minimal phase noise. This supports advanced modulation schemes such as QPSK, 32APSK and 256QAM.

  • Integrated amplification and filtering with low spurious emissions

Provides clean output spectrum with minimal interference. Essential for telecom applications and multi-carrier satellite broadcasting.

  • Seamless compatibility with DVB-S, DVB-S2 and DVB-C standards

Designed to meet international broadcasting requirements, ensuring smooth integration into any professional headend or satellite system.

  • Durable Ku-band AGC LNB with 15-30 V DC supply

Operates efficiently from a wide DC input voltage range while consuming ≤5 W. Reliable for continuous operation in harsh climates.

🧩 Applications

  • Professional Ku-band PLL AGC LNB for DVB-S/S2 broadcasting

Provides stable satellite downlink reception with automatic gain control. Ensures high-quality signal delivery for digital broadcast networks.

  • MVDS and MITRIS distribution networks with Ku-band AGC LNB 11.25

Designed for multi-carrier terrestrial distribution systems. Enhances reliability and stability in rebroadcast environments.

  • CATV headend integration with Ku-band AGC LNB

Supplies clean, stable IF output for professional cable TV infrastructures. Optimized for integration with multi-channel headend systems.

  • Satellite telecom and rebroadcast downlinks

High image rejection and low noise figure guarantee precise signal transport. Suitable for telecom operators requiring professional-grade reception.

  • Outdoor-ready Ku-band PLL LNB with AGC

Rugged, waterproof housing ensures durability in extreme weather. Perfect for remote sites, maritime systems and mobile uplinks.

  • OEM and system integrators

Compact and configurable design makes it ideal for modular cabinets and customized professional broadcast solutions.

💡 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 more details or technical assistance regarding the Ku-band PLL LNB with AGC LO 11.25, contact our team. We provide consultation, installation guidance and aftersales support. The Ku-band PLL LNB with AGC LO 11.25 can also be customized by request.

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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