Name: Ku-Band Universal Single LNBF PLL ST-K21WN with 10.7GHz ~ 12.75GHz Range, 0.7dB Noise Figure, and Vertical/Horizontal Polarization
Brand: Chenzhou Seton Technology Co., Ltd
SKU: ST-K21WN
Availability: InStock

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Ku-Band Universal Single LNBF PLL ST-K21WN with 10.7GHz ~ 12.75GHz Range, 0.7dB Noise Figure, and Vertical/Horizontal Polarization

10.7GHz ~ 12.75GHz Ku-Band Universal Single LNBF

0.7dB Noise Figure Universal Single LNB

Vertical and Horizontal Polarization PLL LNB

Place of Origin:

CHINA

Brand Name:

SETON

Certification:

CE, ISO, ROHS, POP, REACH

Model Number:

ST-K21WN

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Product Details

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:

0.7dB (Typ.)/ 1.0dB(Max.)

Conversion Gain:

55dB~65dB/ 60dB(Typ.)

Highlight:

10.7GHz ~ 12.75GHz Ku-Band Universal Single LNBF

0.7dB Noise Figure Universal Single LNB

Vertical and Horizontal Polarization PLL LNB

Payment & Shipping Terms

Minimum Order Quantity

2000pcs

Packaging Details

CARTON

Delivery Time

30-35 days

Payment Terms

T/T,Western Union

Supply Ability

15 million pieces

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Ku-Band Universal Single LNBF PLL ST-K21WN with 10.7GHz ~ 12.75GHz Range, 0.7dB Noise Figure, and Vertical/Horizontal Polarization

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86-0735-8888458

huang@setontech.cn

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Product Description

Ku-Band Universal Single LNBF PLL ST-K21WN

Product Model: ST-K21WN (Universal Single PLL LNB)
Input: 10.7~12.75 GHz
LO: 9.75 GHz and 10.6 GHz
Polarization: Vertical and Horizontal

Key Features

Wide Compatibility: Works with any modern receiver
Access to Full Range: Can receive all KU Band channels (free and encrypted)
Cost-Effective: The simplest and most economical solution for single TV setups

Technical Specifications

ITEM	SPECIFICATION	UNIT
Low Band I/P Frequency Range	10.7 ~ 11.7	GHz
O/P Frequency Range	950 ~ 1950	MHz
LO Frequency	9.75	GHz
Noise Figure	1.0 [max.]	dB
High Band I/P Frequency Range	11.7 ~ 12.75	GHz
O/P Frequency Range	1100 ~ 2150	MHz
LO Frequency	10.6	GHz
Noise Figure	0.2 [typ]	dB
LO Initial Accuracy	± 0.5	MHz
LO Temperature Drift (-30 ~ +60℃)	± 0.75	MHz
LO Phase Noise @ 1K Hz	-55	dBc / Hz
LO Phase Noise @ 10K Hz	-80	dBc / Hz
LO Phase Noise @ 100K Hz	-90	dBc / Hz
Conversion Gain	58 [min]	dB
Gain Flatness	± 4 [max]	dB
Gain Variation	± 1.0	dB/27 MHz
Image Rejection	-40 [min.]	dB
O/P 1 dB Compression Point (P1dB)	0.0 [min.]	dBm
Crosstalk Isolation	18 [min.]	dB
Control Signals Ca (V)	11.0 ~ 14.5	V
Control Signals Cb (H)	16.0 ~ 20.0	V
Control Signals Cc	22 ± 4	KHz
O/P VSWR	2.5 : 1	~
DC Power	11 ~ 20V/120 [max]	Vdc*mA
Working Temperature	-30 ~ +60	℃
Output Impedance	75	Ω (F-Type)

Understanding LNB Technology

What is an LNB?

An LNB (Low Noise Block, also called LNC - Low Noise Converter) is used for broadcast satellite reception. The LNB is typically mounted on the satellite dish and serves to collect and amplify the satellite signal received from the dish, then down-converts the signal to a lower, more manageable IF frequency that can be carried over standard coaxial cabling to the receiver. LNBs are categorized into C-Band, Ku-Band, and Ka-Band according to their operating frequency ranges.

What is KU Band?

This refers to the specific portion of the radio frequency spectrum it's designed to receive.

KU Band frequencies range from approximately 10.7 GHz to 12.75 GHz
This band is widely used for direct-to-home (DTH) satellite television across Europe, the Middle East, Africa, and many parts of Asia
Distinct from C Band (older, larger dishes) and KA Band (used for high-speed internet)

What is Universal?

A "Universal" LNB is designed to cover the entire KU Band range (10.7 - 12.75 GHz) and is compatible with virtually all modern digital satellite receivers. It has two internal local oscillators (LO):

Low Band (10.7 - 11.7 GHz): Uses a 9.75 GHz oscillator
High Band (11.7 - 12.75 GHz): Uses a 10.6 GHz oscillator

How it switches: Your satellite receiver sends a special 22 kHz tone along the coaxial cable. When the tone is OFF, the LNB listens to the Low Band. When the tone is ON, it switches to the High Band.

It also uses DiSEqC (Digital Satellite Equipment Control) commands (also sent from the receiver) to handle other functions, but the 22 kHz switch is the core of the "Universal" definition.

What is Single?

This refers to the number of independent outputs the LNB has.

A Single LNB has one output (one coaxial connector)
It can therefore feed only one satellite receiver (one TV tuner) at a time

Alternative configurations include:

Twin LNB: Has two independent outputs to feed two separate receivers
Quad LNB: Four outputs
Octo LNB: Eight outputs
Quattro LNB: Four outputs with fixed polarities, used for larger communal distribution systems

Tags：

Ku-Band Universal Single LNBF PLL ST-K21WN with 10.7GHz ~ 12.75GHz Range, 0.7dB Noise Figure, and Vertical/Horizontal Polarization

10.7GHz ~ 12.75GHz Ku-Band Universal Single LNBF

0.7dB Noise Figure Universal Single LNB

Vertical and Horizontal Polarization PLL LNB

10.7GHz ~ 12.75GHz Ku-Band Universal Single LNBF

0.7dB Noise Figure Universal Single LNB

Vertical and Horizontal Polarization PLL LNB

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