ST-K21WD Universal Single LNBF - Ku-Band, Dual LO 9.75/10.6GHz, V/H Polarization

MOQ： 2000pcs
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Payment Terms	T/T,Western Union
Supply Ability	15 million pieces
Delivery Time	30-35 days
Packaging Details	CARTON
Input Frequency Range (Low-Band)	10.7GHz ~ 11.7GHz
Input Frequency Range (High-Band)	11.7GHz ~ 12.75GHz
Output Frequency Range (Low-Band)	950MHz ~ 1950MHz
Output Frequency Range (High-Band)	1100MHz ~ 2150MHz
Low band LO frequency	9.75GHz
High band LO frequency	10.6GHz
Noise figure	0.5dB (Typ.)/ 0.8dB(Max.)
Conversion Gain	58dB~70dB/ 64dB (Typ.)
Brand Name	SETON
Model Number	ST-K21WD
Certification	CE, ISO, ROHS, POP, REACH
Place of Origin	CHINA

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Product Specification


Payment Terms	T/T,Western Union	Supply Ability	15 million pieces
Delivery Time	30-35 days	Packaging Details	CARTON
Input Frequency Range (Low-Band)	10.7GHz ~ 11.7GHz	Input Frequency Range (High-Band)	11.7GHz ~ 12.75GHz
Output Frequency Range (Low-Band)	950MHz ~ 1950MHz	Output Frequency Range (High-Band)	1100MHz ~ 2150MHz
Low band LO frequency	9.75GHz	High band LO frequency	10.6GHz
Noise figure	0.5dB (Typ.)/ 0.8dB(Max.)	Conversion Gain	58dB~70dB/ 64dB (Typ.)
Brand Name	SETON	Model Number	ST-K21WD
Certification	CE, ISO, ROHS, POP, REACH	Place of Origin	CHINA
High Light	Dual LO 9.75/10.6GHz Universal Single LNBF ，V/H Polarization Ku-Band LNB ，Low Noise Figure 0.5dB Satellite LNB

ST-K21WD Ku-Band Single LNB - Universal 9.75/10.6GHz, Vertical/Horizontal

Input: 10.7~12.75 GHz

LO: 9.75 GHz and 10.6 GHz

Polarization: Vertical and Horizontal

Technical Specifications

Input Frequency Range (Low-Band)	10.7GHz ~ 11.7GHz
Output Frequency Range (Low-Band)	950MHz ~ 1950MHz
Low band LO frequency	9.75GHz
Input Frequency Range (High-Band)	11.7GHz ~ 12.75GHz
Output Frequency Range (High-Band)	1100MHz ~ 2150MHz
High band LO frequency	10.6GHz
Noise figure	0.5dB (Typ.)/ 0.8dB(Max.)
LO Initial Accuracy	±0.5MHz
LO Temperature Drift (-30~+60℃)	0.75MHz
LO phase noise @ 1 KHz	-75dBc/Hz
LO phase noise @ 10 KHz	-80dBc/Hz
LO phase noise @ 100 KHz	-90dBc/Hz
Conversion Gain	58dB~70dB/ 64dB (Typ.)
Gain Flatness	±3.0dB (Max.)
Gain Variation	0.5dB/26 MHz
O/P 1dB Compression Point (P1 dB)	0.0dBm (Min.)
Image-Rejection	-40dBc (Min.)
Crosstalk Isolation	20dB (Min.)
O/P VSWR	2.5:1
Control Signals Ca V	10.0V~14.0V
Control Signals Cb H	16.0V~20.0V
Control Signals Cc	22±4KHz
DC-Power	10~20V/100Vdc*mA (Max.)
Output Impedance	75Ω (F-Type)
Waterproof	O-RING
Working Temperature	-30℃~+60℃

Understanding KU Band Universal Single LNB Technology

Think of a satellite dish as a bucket that collects a very weak signal from space. The LNB is the sophisticated funnel attached to it.

KU Band (The Frequency Range): This refers to the specific range of radio frequencies the device is designed to catch, specifically from 10.7 to 12.75 GHz. This is the most common band used for direct-to-home satellite TV services across Europe, Asia, Africa, and the Middle East.
Universal (The Switching Standard): A "universal" LNB is designed to cover the entire KU Band spectrum. It does this by having two internal "local oscillators" (LO) to switch between a Low Band (10.7-11.7 GHz) and a High Band (11.7-12.75 GHz).
How it switches: Your satellite receiver sends commands up the coaxial cable—a simple 13/18V signal to choose between vertical/horizontal polarization, and a 22 kHz tone to switch between the low and high band. This standard allows it to work with virtually any modern receiver.
Single (The Number of Outputs): This simply means the LNB has one coaxial output connector and can therefore feed a signal to only one satellite receiver or one TV tuner at a time.

Company Details

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Year Established:

2019 
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Employee Number:

100~200 
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Ecer Certification：

Verified Supplier 

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Chenzhou Seton Technology Co., Ltd
3rd Floor, 6th Building, Changchong Innovation and Pioneering Park, Economic Development Zone, Beihu District, Chenzhou City, Hunan Province.
https://www.vsatlnb.com/

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