Name: One Cable Solution Anti-5G C-Band PLL LNB - 3.5GHz IMT Rejection, High Gain, Low Noise
Brand: Chenzhou Seton Technology Co., Ltd
SKU: ST-C21M One Cable Solution LNB
Availability: InStock

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One Cable Solution Anti-5G C-Band PLL LNB - 3.5GHz IMT Rejection, High Gain, Low Noise

Anti-5G C-Band Rejection PLL LNB

High Gain 60dB One Cable Solution LNB

Low Noise 17°K C-Band LNB

Place of Origin:

CHINA

Brand Name:

SETON

Certification:

CE, ISO, RoHS

Model Number:

ST-C21M One Cable Solution LNB

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Product Details

Input Frequency Range:

3.7~4.2GHz/ Or 3.8~4.2GHz...etc

Output Frequency Range:

950~1450MHz & 1550~2050MHz...etc

LO Frequency:

5.15 & 5.75GHz

Noise Figure:

17°K (Typ.)/ 30°K (Max.)

Conversion Gain:

60dB (Typ.)

I/P Frequency Rejection-5G（3.3~3.6GHz):

40[min.]

5G Power Level (Guard Band=100MHz):

-35[max.]

Highlight:

Anti-5G C-Band Rejection PLL LNB

High Gain 60dB One Cable Solution LNB

Low Noise 17°K C-Band LNB

Payment & Shipping Terms

Minimum Order Quantity

1000pcs

Packaging Details

CARTON

Delivery Time

30-35 days

Payment Terms

T/T,Western Union

Supply Ability

15 million pieces

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86-0735-8888458

huang@setontech.cn

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Product Description

One Cable Solution Anti-5G C-Band PLL LNB

The One Cable Solution PLL LNB C-BAND ANTI-5G with 3.5GHz IMT rejection delivers high gain and ultra-low noise performance. Model ST-C21M is specifically engineered to overcome 5G telecommunications interference while providing superior satellite signal reception.

Product Overview

With the rapid expansion of 5G telecommunications, spectrum interference has become a critical challenge for satellite reception. Our One Cable Solution PLL LNB C-BAND Anti-5G is engineered to excel in environments affected by 3.5GHz 5G signals.

This cutting-edge LNB combines exceptionally high gain with an ultra-low noise temperature (as low as 17°K). It leverages advanced One Cable Solution (Stacked LNB) technology, allowing a single RG6 coaxial cable to connect multiple set-top boxes (STBs). This provides an energy-efficient, multi-user receiving mode that serves as a superior upgrade to traditional stacked LNBs. It ensures stable, high-quality signal reception even in complex electromagnetic environments, guaranteeing full compatibility with existing satellite infrastructure.

Key Features & Benefits

High-Performance 5G Interference Rejection

Anti-Saturation & High Linearity: Engineered to withstand 5G interference signals in the 3.3~3.6GHz band at power levels up to -30dBm. The design prevents output gain saturation and minimizes intermodulation distortion, ensuring rock-solid signal stability.
Precision Guard Band: Features a dedicated 100MHz guard band, providing effective shielding against interference from the 3.3~3.6GHz 5G IMT spectrum.
Superior Input Rejection: Achieves high input rejection of 40dBc (Min.) at critical frequencies (≤3.6GHz / ≤3.7GHz), effectively blocking unwanted 5G signals at the source.

True One Cable Solution (Stacked LNB)

Multi-User Capability: Enables the connection of multiple set-top boxes via a single RG6 cable, dramatically reducing cabling costs, installation complexity, and labor time.
Simplified & Efficient Architecture: Minimizes signal loss associated with multiple cable runs and reduces overall system power consumption.

Exceptional RF Performance

Ultra-Low Noise Figure: A typical noise temperature of just 17°K (30°K Max.) allows for the acquisition of the weakest satellite signals, ensuring excellent picture quality under all conditions.
High & Stable Gain: Provides a high conversion gain of 60dB (Typ.) with excellent gain flatness of ±3.0dB (Max.) and minimal gain variation of ±0.5dB over any 26MHz span, guaranteeing signal integrity and consistency.
Precise PLL Stability: Phase-Locked Loop (PLL) technology ensures precise local oscillator frequencies of 5.15 & 5.75GHz. The frequency drift is exceptionally low at just ±0.75MHz over a wide operating temperature range (-30~+60℃), with low phase noise of -85dBc/Hz @10KHz.

Frequency Specifications

LNB: 3.7~4.2 GHz (Customizable design according to different frequency)
5G IMT: 3.3~3.6 GHz
Guard Band: 100 MHz
LNB Input 5G Power level: -30dBm@3.3~3.6GHz

Performance Characteristics

Output gain should not have significant intermodulation when 3.3~3.6 GHz interference input LNB
Output gain should not be saturated when 3.3~3.6 GHz interference input LNB

Technical Specifications

Parameter	Specification
Input Frequency Range	3.7~4.2GHz/ or 3.8~4.2GHz...etc (Customizable)
Output Frequency Range	950 ~ 1450MHz & 1550~2050MHz/ or 950~1350MHz & 1550~1950MHz...etc
LO frequency	5.15 & 5.75GHz
Noise figure	17°K (Typ.)/ 30°K (Max.)
LO Temperature Drift(-30~+60℃)	±0.75MHz
LO phase noise @ 10 KHz	-85dBc/Hz
Conversion Gain	60dB (Typ.)
Gain Flatness	±3.0dB (Max.)
Gain Variation	±0.5dB/ 26MHz
I/P Rejection TI	≤3.6GHz@40dBc(Min.)/ ≤3.7GHz@40dBc(Min.)
Rejection	40dBc
O/P Rejection	50dBc(Min.)
Control Signals (V~Pro & H-Pro)	10.0V~20.0V
DC-Power	10~20V/160Vdc*mA (Max.)
Output Impedance	75Ω (F-Type)

Typical Applications

Multi-Dwelling Units (MDUs) / Apartments: Distribute satellite signals to multiple subscribers without complex wiring.
Areas Near 5G Base Stations: Ensures reliable satellite reception in environments with strong 5G signal interference.
Professional CATV Headends: Ideal for systems requiring high reliability, low noise, and simplified cabling.

Frequently Asked Questions

What is an LNB?

An LNB - Low Noise Block (also called an LNC- Low Noise Converter), it is used for communications (broadcast) satellite reception. The LNB is usually affixed either in or on the satellite dish and its purpose is to collect and amplify the satellite signal received from the dish and then down convert the signal to lower more manageable IF frequency which can then be carried over standard coaxial cabling to the receiver. Divided into C-Band, Ku-Band, Ka-Band according to different frequency.

What is a feedhorn?

The feedhorn is a part of the LNB and works like a directional horn. Its function is to capture the signals reflected from the dish and to shield the LNB from receiving extraneous radiation from other sources. These collected signals are then passed form the horn to the electronics within the LNB. Divided into Orthogonal feed, offset feed and elliptical feed.

What is a Monoblock LNB?

This design consists of two independent LNBs in a single housing and allows a user the potential of receiving the signal from two different satellites which are at slightly different orbital opposition from a single dish installation. The switching between the satellites is achieved via the use of DiSEqC signals. Monoblock LNB's are available mostly for satellites with a fixed 2°/ 3°/4.3° or 6° spacing and the range covers Ku band Monoblock switch single, twin and quad outputs. For example where a 2°Monoblock LNB could be used is for the reception of 5°W and 7° W or with 3° distance for the reception of 13° E and 16° E.

What is a one cable solution LNB?

LNB can connect multi-STB(set-top-box) by one RG6 cable, is a saving energy and multi-users receiving mode, sometimes also called stack LNB.

What does Unicable mean?

Unicable is a new method for distributing satellite television. Several receivers (currently up to 32 in accordance with standard EN 50494 & EN 50607). Unicable 1: It means SCR LNB, only achieving static working model; Unicable 2: Both achieving two working models with static and dynamic, LNB can be designed to achieve Universal+Unicable input separately. For example: 1 output Universal+1 output Unicable/ 1 output Universal+ 3 output Unicable.

Tags：

One Cable Solution Anti-5G C-Band PLL LNB - 3.5GHz IMT Rejection, High Gain, Low Noise

Anti-5G C-Band Rejection PLL LNB

High Gain 60dB One Cable Solution LNB

Low Noise 17°K C-Band LNB

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Low Noise 17°K C-Band LNB

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