Place of Origin:
CHINA
Brand Name:
SETON
Certification:
CE, ISO, RoHS
Model Number:
ST-K21WS
Ku-Band LNBF with dual polarization support (Vertical/Horizontal and Left-hand/Right-hand circular polarization).
| Parameter | Value |
|---|---|
| Input Frequency Range (Low-Band) | 11.7GHz ~ 12.75GHz |
| Output Frequency Range (Low-Band) | 950MHz ~ 2000MHz |
| Low band LO frequency | 10.75GHz |
| Noise figure | 0.7dB(Typ.)/ 1.0dB(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 | 55dB ~ 65dB/ 60dB (Typ.) |
| Gain Flatness | 3.0dB (Max.) |
| Gain Variation | 0.5dB/ 26MHz |
| 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 |
| DC-Power | 10~20V/100Vdc*mA (Max.) |
| Output Impedance | 75Ω (F-Type) |
| Working Temperature | -30℃~+60 ℃ |
A: An LNB (Low Noise Block, also called LNC - Low Noise Converter) is used for communications satellite reception. The LNB is typically mounted on the satellite dish to collect and amplify the satellite signal, then downconvert it to a more manageable IF frequency for transmission over coaxial cable to the receiver. Available in C-Band, Ku-Band, and Ka-Band variants.
A: The feedhorn is a directional component of the LNB that captures signals reflected from the dish while shielding against extraneous radiation. It directs collected signals to the LNB electronics. Available in orthogonal feed, offset feed, and elliptical feed configurations.
A: A Monoblock LNB contains two independent LNBs in one housing, enabling reception from two satellites at slightly different orbital positions using a single dish. Switching between satellites is achieved via DiSEqC signals. Available with fixed 2°/3°/4.3°/6° spacing in Ku band with single, twin, or quad outputs.
A: This LNB type allows multiple set-top boxes to connect via a single RG6 cable, providing an energy-efficient multi-user reception solution (also called stack LNB).
A: Unicable is a satellite TV distribution method supporting multiple receivers (up to 32 per EN 50494 & EN 50607 standards).
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