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Universal Quad 40mm LNB


Item: 5257


Specifically designed to address the demand of the global DTH market for a competitive and 4G/LTE protected solution, this LNB provides optimized reception capabilities using the latest technology in satellite reception. It enables the reception of satellite TV from a single satellite and its distribution to four Set-top boxes or to two dual tuner PVR. The LNB supports Standard, High Definition and the latest Ultra HD (4K) transmissions, delivers excellent RF performances, very low power consumption and importantly engineered to mitigate interferences from 4G/LTE transmissions. Manufactured to the highest industry quality standards and engineered to meet strict specifications, this LNB is an ideal solution for DTH operators and satellite broadcast reception across the world.


Main Features:

• Low Phase Noise, DVB-S2 (HDTV/UHD) compliant

• Low Noise Figure

• High Cross Polarization Isolation

• High Frequency Stability (PLL-based)

• Low Power Consumption

• Greater immunity against 4G interference

Product Specifications
Low band Input Frequency Range 10.7 ~  11.7 GHz
Output Frequency Range 950 ~  1950 MHz
High Band Input Frequency Range 11.7 ~  12.75 GHz
Output Frequency Range 1100 ~  2150 MHz
LO Frequency @ 25°C [PLL] ±200KHz
LO Temperature Drift [PLL] ±400KHz
LO Phase Noise -50dBc@1kHz
Conversion Gain 55dB ~ 65dB
Gain variation 5dB (max)
Gain flatness (36 MHz) 1dB / 36MHz
Noise Figure 0.7dB max
Cross polarization isolation 22dB(min)
Image rejection 40dB (min)
P1dB 0dBm (min)
3th Order Intermodulation - ICP3 10dBm
Output Return loss 8 dB (min)
In-band output Spurious (1700MHz) -60 dBm (max)
DC Power 11-20VDC
  280mA max.
Vertical Polarization 11.5 - 14V
Horizontal Polariztion 16 - 19V
Low / High Band Switching 0 / 22kHz
Output Impedance 75 ohm
Frequently Asked Questions

What is a feedhorn?

The feedhorn is the part of a satellite dish system which gathers the reflected signal from the dish and focuses it towards the LNB.

What is an LNB?

An LNB - Low Noise Block (also called an LNC- Low Noise Converter), is used for communications (broadcast) satellite reception. The LNB is usually affixed either in or on the satellite dish.

What is an LNBF?

An LNBF is an LNB with an integrated feedhorn

What is a Monoblock LNB?

This design consists of two independent LNBs in a single case. The two LNBs can be automatically addressed with any DiSEqC 1.0 or higher receiver. In some cases they can also be addressed with ToneBurst / MiniDiSEqC. However, they are only available for satellites with a fixed 3 degree, 4.3 degree, 6 degree …spacing. In Europe, for example, there are monoblock single, twin and quad LNBs for the Ku band, which have a pre-defined spacing of 6 degrees (for Astra 1 / Hotbird , for example).

Why can I receive only one satellite with my Monoblock?

Monoblock LNBs are designed for a specific dish size, 80cm for example. If your dish is too small (70cm for example) or too wide (90cm for example) it is not possible to receive both satellites together. Please choose the dish size for which the monoblock LNB has been designed.