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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
Ku-Band Universal Single LNBF PLL ST-K21WN with 10.7GHz ~ 12.75GHz Range, 0.7dB Noise Figure, and Vertical/Horizontal Polarization
Specifications
Brand Name :
SETON
Model Number :
ST-K21WN
Certification :
CE, ISO, ROHS, POP, REACH
Place of Origin :
CHINA
MOQ :
2000pcs
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 :
0.7dB (Typ.)/ 1.0dB(Max.)
Conversion Gain :
55dB~65dB/ 60dB(Typ.)
Description

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

  • 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 cheapest type for a single TV setup.
Technical Specification
ITEMSPECIFICATIONUNIT
Low Band I/P Frequency Range10.7 ~ 11.7GHz
O/P Frequency Range950 ~ 1950MHz
LO Frequency9.75GHz
Noise Figure1.0 [ max.]dB
High Band I/P Frequency Range11.7 ~ 12.75GHz
O/P Frequency Range1100 ~ 2150MHz
LO Frequency10.6GHz
Noise Figure0.2[typ]dB
LO Initial Accuracy± 0.5MHz
LO Temperature Drift( - 30 ~ + 60℃)± 0.75MHz
LO Phase Noise @ 1K Hz-55dBc / Hz
LO Phase Noise @ 10K Hz-80dBc / Hz
LO Phase Noise @ 100K Hz-90dBc / Hz
Conversion Gain58(min)dB
Gain Flatness± 4[max]dB
Gain Variation± 1.0dB/27 MHz
Image Rejection-40 [min.]dB
O/P 1 dB Compression Point(P1dB)0.0 [min.]dBm
Crosstalk Isolation18 [min.]dB
Control Signals Ca ( V )11.0 ~ 14.5V
Control Signals Cb ( H )16.0 ~ 20.0V
Control Signals Cc22 ± 4KHz
O/P VSWR2.5 : 1~
DC Power11 ~ 20V/120(max)Vdc*mA
Working Temperature- 30 ~ + 6℃
Output Impedance75Ω (F-Type)
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.

  • Alternatives are:

    • 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.
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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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Product Detail
Brand Name :
SETON
Model Number :
ST-K21WN
Certification :
CE, ISO, ROHS, POP, REACH
Place of Origin :
CHINA
MOQ :
2000pcs
Payment Terms :
T/T,Western Union
Contact Supplier
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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

Chenzhou Seton Technology Co., Ltd

Verified Supplier
1 Years
hunan, chenzhou
Since 2019
Main Products :
, ,
Employee Number :
100~200
Certification Level :
Verified Supplier
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