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PLL LNB with AGC L.O. 12.8

Short description

PLL LNB with AGC L.O. 12.8 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. 12.8.

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. 12.8 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: 12.8 GHz       IN: 13.75 – 14.55 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 13.75 – 14.55
Input level range – 65 … -15 dBm
Input VSWR, max 1.8
Input interface Waveguide WR75, Flange UBR120
Local Oscillator:
LO frequency 12.8
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) 59x41x144 mm
Weight 0.4 kg

The Ku-band PLL LNB with AGC 12.8 is a professional-grade Low Noise Block Downconverter built for broadcasting networks where stable performance is essential. Operating with 13.75-14.55 GHz input and converting to 950-1750 MHz IF, it ensures reliable reception even under varying input conditions. Its 25 dB AGC range and 50 dB wide dynamic range make it one of the most advanced Ku-band AGC LNBs on the market.

With its precision PLL oscillator, the Ku-band LNB with AGC 12.8 maintains ±100 kHz LO stability and ultra-low phase noise. Supporting up to 25 carriers, it is optimized for MVDS and MITRIS TV broadcasting systems, CATV infrastructures and professional telecom operators.

The Ku-band PLL LNB with AGC 12.8 offers ≥40 dB gain, ≤5 dB noise figure and ≥60 dBc image rejection, providing clear and stable reception in complex environments. Featuring WR75 waveguide input, PBR120 flange and F-type or N-type output options, it ensures maximum compatibility with professional broadcasting systems.

High-Performance Ku-band PLL AGC LNB 12.8 for Professional Systems

The Ku-band PLL LNB with AGC 12.8 offers ≥40 dB gain, ≤5 dB noise figure and ≥60 dBc image rejection, providing clear and stable reception in complex environments. Featuring WR75 waveguide input, PBR120 flange and F-type or N-type output options, it ensures maximum compatibility with professional broadcasting systems.

Engineered for outdoor deployment

This LNB is designed to operate reliably in harsh conditions with temperatures ranging from -40 °C to +60 °C. Its rugged 0.4 kg housing protects against humidity up to 95%, making it ideal for remote broadcasting and telecom installations.

Multi-standard compatibility

The Ku-band PLL AGC LNB 12.8 supports DVB-S, DVB-S2 and DVB-C digital standards, ensuring flexible integration into MVDS/MITRIS, CATV and professional satellite networks.

🛠️ Whether you need a Ku-band PLL AGC LNB with 12.8 GHz LO, a professional Ku-band LNB with 25 dB AGC range, or a rugged outdoor Low Noise Block Downconverter with WR75 PBR120 flange for DVB-S/S2/C broadcasting, the LNB with AGC 12.8 is designed for reliability and efficiency.

🛒 The Ku-band PLL AGC LNB 12.8 is available to order now – ready for integration into DVB-S/S2/C and MVDS/MITRIS broadcasting networks.

📌 Key Features

  • Wide dynamic range Ku-band PLL AGC LNB 12.8 up to 50 dB

This LNB provides the widest dynamic range available among Ku-band AGC LNBs, ensuring stable performance under heavy input power fluctuations. Such flexibility is ideal for DVB-S2 broadcasting and rebroadcasting infrastructures.

  • Automatic Gain Control with 25 dB range

The integrated AGC keeps output power stable within a 25 dB range, preventing overload or distortion. This feature guarantees reliability in MVDS/MITRIS networks and CATV systems.

  • Ku-band PLL AGC LNB with ±100 kHz LO stability and low phase noise

Its advanced oscillator ensures precise frequency conversion with minimal jitter. This stability allows flawless operation of advanced modulation schemes in DVB-S2 and DVB-C standards.

  • Professional Ku-band LNB with ≥40 dB gain and flat response

Providing strong amplification and consistent signal levels, this LNB ensures reliable reception across the entire Ku-band. Such performance is essential for broadcast headends and telecom operators.

  • WR75 PBR120 flange input with flexible outputs

The device includes a WR75 waveguide interface and PBR120 flange for professional connectivity, with F-type or N-type outputs supporting both 50 Ohm and 75 Ohm systems.

  • Ku-band AGC LNB with ≤5 dB noise figure and ≥60 dBc image rejection

By minimizing noise and suppressing spurious signals, this LNB guarantees clear and interference-free reception. Its performance is optimized for dense RF environments.

  • Rugged outdoor-ready Ku-band PLL AGC LNB 12.8

The waterproof housing and compact 59×41×144 mm size ensure durability in challenging outdoor conditions. Its 0.4 kg weight makes installation simple and reliable.

  • Multi-carrier Ku-band PLL AGC LNB 12.8 supporting up to 25 carriers

This LNB allows simultaneous reception of multiple carriers, making it ideal for MVDS, MITRIS, CATV headends and professional rebroadcast networks.

⚙️ Main Functions

  • Downconversion from 13.75-14.55 GHz input to 950-1750 MHz IF output

The Ku-band PLL AGC LNB 12.8 converts Ku-band frequencies into L-band for DVB-S2, CATV and telecom infrastructures, ensuring compatibility across systems.

  • Automatic Gain Control for stable signal regulation

The built-in AGC stabilizes signal output even under fluctuating input conditions, ensuring uninterrupted performance for broadcasting and telecom services.

  • PLL oscillator at 12.8 GHz with low phase noise

The oscillator maintains high frequency accuracy with minimal phase noise, reducing signal errors and ensuring stability for advanced modulation formats.

  • Integrated amplification and precise filtering

This LNB provides flat spectral response with ≤0.5 dB ripple over 27 MHz bandwidth. Such clean performance guarantees reliable operation in DVB-S2 and CATV systems.

  • Compatibility with DVB-S, DVB-S2 and DVB-C standards

The Ku-band PLL AGC LNB 12.8 supports modern broadcasting standards, making it versatile for various professional applications.

  • Reliable operation with 15-30 V DC power supply

Consuming ≤5 W, the device operates efficiently across a wide voltage range, ensuring long-term stability in remote and demanding deployments.

🧩 Applications

  • Ku-band PLL AGC LNB 12.8 for DVB-S/S2/C broadcasting

Designed for professional downlink reception, this LNB ensures reliable performance for digital broadcasting systems.

  • MVDS and MITRIS distribution with Ku-band PLL AGC LNB 12.8

Its wide dynamic range and AGC functionality make it ideal for terrestrial rebroadcasting and distribution infrastructures.

  • CATV headend integration using Ku-band AGC LNB 12.8

The stable IF output and gain regulation allow efficient multi-channel reception in cable TV infrastructures.

  • Satellite communication and telecom links

With low phase noise and high image rejection, this LNB ensures stability and efficiency for telecom operators.

  • Outdoor Ku-band PLL AGC LNB 12.8 for extreme conditions

The rugged housing and extended operating range make it suitable for maritime, desert and remote installations.

  • Compact Ku-band PLL AGC LNB 12.8 for OEM and integrators

Its 0.4 kg lightweight construction and compact form factor enable easy integration into modular systems and custom 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 additional details or assistance regarding the Ku-band PLL AGC LNB 12.8, 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. Ku-band PLL AGC LNB 12.8 is available to customize its 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.

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