Name: ST-C11CS C-Band Single LNBF with 3.7-4.2GHz Input Frequency 5.15GHz LO and 950-1450MHz Output for TVRO and FSS Applications
Brand: Chenzhou Seton Technology Co., Ltd
SKU: ST-C11CS
Availability: InStock

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ST-C11CS C-Band Single LNBF with 3.7-4.2GHz Input Frequency 5.15GHz LO and 950-1450MHz Output for TVRO and FSS Applications

3.7-4.2GHz Input Frequency C-Band Single LNBF

5.15GHz LO Frequency TVRO LNB

950-1450MHz Output Frequency FSS LNB

Place of Origin:

CHINA

Brand Name:

SETON

Certification:

CE, ISO, RoHS

Model Number:

ST-C11CS

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Product Details

Input Frequency:

3.7-4.2GHz

L.O.Frequency:

5.15GHz

Output Frequency:

950-1450MHz

Conversion Gain:

65dB(Typ.)

Noise Figure:

12°K(Max.)

Highlight:

3.7-4.2GHz Input Frequency C-Band Single LNBF

5.15GHz LO Frequency TVRO LNB

950-1450MHz Output Frequency FSS 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

ST-C11CS C-Band Single LNBF - TVRO & FSS Professional Satellite Component

Professional satellite signal reception component for C-Band FSS applications.

Key Features

Frequency Range: 3.7~4.2 GHz
Dual Polarization: Vertical and Horizontal / Left-hand circular and Right-hand circular polarization
Universal C-Band compatibility

Technical Specifications

I/P Frequency Range	3.7-4.2GHz
O/P Frequency Range	950-1450MHz
L.O. Frequency	5.15GHz
Conversion Gain	65dB (Typical)
Noise Figure	12°K
LO Frequency Accuracy	±0.5MHz
Phase Noise	-80dBc/Hz@10kHz
Output Impedance	75Ω F-Type
DC Power	11-20V/150mA (Max.)
Output VSWR	2.0:1
Output 1 dB Compression Point	0.0dBm [Min.]
Working Temperature	-30°C to +60°C

Understanding Satellite Components

What is an LNB?

An LNB (Low Noise Block) or LNC (Low Noise Converter) is used for communications satellite reception. Mounted on the satellite dish, it collects and amplifies satellite signals, then down-converts them to manageable IF frequencies for transmission over coaxial cabling to the receiver. Available in C-Band, Ku-Band, and Ka-Band frequencies.

What is a feedhorn?

The feedhorn is a directional component of the LNB that captures signals reflected from the dish while shielding against extraneous radiation. It passes collected signals to the LNB electronics. Available in orthogonal feed, offset feed, and elliptical feed configurations.

What is a C-Band Single LNB?

C-Band: Receives radio frequency range 3.4-4.2 GHz
- Lower frequency than Ku-band (10-12 GHz)
- Better signal penetration through rain/weather
- Requires larger satellite dishes (1.8-3 meters typical)
Single: Has only one output and one local oscillator (LO)
- Can only connect to one receiver at a time
- Cannot feed multiple receivers simultaneously
LNB: Low-Noise Block Downconverter
- Converts high satellite frequencies to lower frequencies
- Amplifies weak satellite signals with minimal added noise

How It Works

Signal Flow:
Satellite Signal (3.7 GHz) → LNB Reception → Mix with LO Frequency (5.15 GHz) → Output IF Signal (1.45 GHz) → Cable to Receiver

Technical Process

Receives weak C-band signals from satellite (3.4-4.2 GHz)
Uses internal local oscillator (typically 5150 MHz) to downconvert
Outputs Intermediate Frequency (IF) = LO - Satellite Frequency
Result: 950-1750 MHz range that can travel efficiently through coaxial cable

Example Calculation

Satellite frequency: 3720 MHz
LNB LO: 5150 MHz
Output to receiver: 5150 - 3720 = 1430 MHz

Advantages

• Low cost

• Simple installation

• Reliable for basic use

• Widely available

Tags：

ST-C11CS C-Band Single LNBF with 3.7-4.2GHz Input Frequency 5.15GHz LO and 950-1450MHz Output for TVRO and FSS Applications

3.7-4.2GHz Input Frequency C-Band Single LNBF

5.15GHz LO Frequency TVRO LNB

950-1450MHz Output Frequency FSS LNB

3.7-4.2GHz Input Frequency C-Band Single LNBF

5.15GHz LO Frequency TVRO LNB

950-1450MHz Output Frequency FSS LNB

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