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KU BAND Universal Twin LNB

TVRO LNBF
December 29, 2025
Category Connection: TVRO LNBF
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Tags:
#12.75GHz KU BAND Universal LNB #10.7GHz KU BAND Universal LNB #KU BAND Universal Twin LNB
Brief: In this video, we take a focused look at the specifications and what they mean in practice for the KU BAND Universal Twin LNB. You'll see a detailed explanation of its dual-band operation, how it handles vertical and horizontal polarization, and the technical performance metrics that ensure reliable satellite signal reception in professional installations.
Related Product Features:
  • Operates across a wide input frequency range from 10.7GHz to 12.75GHz, divided into low and high bands.
  • Features dual local oscillator frequencies at 9.75GHz for the low band and 10.6GHz for the high band.
  • Supports both vertical and horizontal polarization for versatile signal reception.
  • Boasts a low noise figure of 0.7dB typical, ensuring minimal signal degradation.
  • Provides conversion gain between 55dB and 65dB for effective signal amplification.
  • Designed with a working temperature range from -30℃ to +60℃ for reliable operation in various climates.
  • Includes two independent outputs in a single housing, allowing connection to multiple receivers.
  • Utilizes standard 75Ω F-Type output impedance for compatibility with coaxial cabling.
FAQs:
  • What is a Universal Twin LNB?
    A Universal Twin LNB is a Low Noise Block converter used for satellite reception that combines two independent LNBs in a single housing. It operates in the Ku-Band, covering frequencies from 10.7 to 12.75 GHz, and supports both vertical and horizontal polarization, allowing it to connect to multiple receivers simultaneously.
  • How does the dual-band operation work in this LNB?
    The LNB uses two local oscillator frequencies: 9.75 GHz for the low-band (10.7–11.7 GHz input) and 10.6 GHz for the high-band (11.7–12.75 GHz input). This allows it to downconvert signals to manageable IF frequencies of 950–1950 MHz for the low band and 1100–2150 MHz for the high band, facilitating reliable signal processing.
  • What are the control signals used for switching between polarizations?
    The LNB uses specific DC voltage control signals to switch between polarizations: 10.0V–14.0V for vertical (Ca V) and 16.0V–20.0V for horizontal (Cb H). This enables the receiver to select the desired polarization, ensuring optimal signal capture from the satellite.
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