Place of Origin:
CHINA
Brand Name:
SETON
Certification:
CE, ISO, RoHS
Model Number:
KA-Band Single LNB
This KA-Band Single LNB operates at 19.7~20.2 GHz with customizable frequency design options. It supports both linear (Vertical/Horizontal) and circular (Left-hand/Right-hand) polarization.
| Input Frequency Range | 19.7GHz ~ 20.2GHz |
| Output Frequency Range | 950MHz ~ 1450MHz |
| LO frequency | 21.15GHz |
| Noise Figure | 1.2dB (Typ.)/ 1.8dB (Max.) |
| LO Initial Accuracy | 0.5MHz |
| LO Temperature Drift (-30~+60℃) | 0.75MHz |
| LO phase noise @ 1 KHz | -60dBc/Hz |
| LO phase noise @ 10 KHz | -80dBc/Hz |
| LO phase noise @ 100 KHz | -90dBc/Hz |
| Conversion Gain | 55dB~65dB/ 60dB (Typ.) |
| Gain Flatness | 2.5dB (Max.) |
| Gain Variation | 0.5dB/26 MHz |
| O/P 1dB Compression Point (P1 dB) | 3.0dBm (Min.) |
| Image-Rejection | -40dBc (Min.) |
| Crosstalk Isolation | 20dB (Min.) 22dB (Typ.) |
| O/P VSWR | 2.5:1 |
| Control Signals Ca L | 10.0V~14.0V |
| Control Signals Cb R | 16.0V~20.0V |
| DC-Power | 10~20V/150Vdc*mA (Max.) |
| Output Impedance | 75Ω (F-Type) |
| Working Temperature | -30℃~+60℃ |
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 that can be carried over standard coaxial cabling to the receiver. LNBs are categorized into C-Band, Ku-Band, and Ka-Band based on their operating frequencies.
The feedhorn is a directional component of the LNB that captures signals reflected from the dish while shielding against extraneous radiation. These collected signals are then passed to the LNB electronics. Feedhorns come in three types: Orthogonal feed, offset feed, and elliptical feed.
This design incorporates two independent LNBs in a single housing, enabling reception from two different satellites at slightly different orbital positions using a single dish. Switching between satellites is achieved via DiSEqC signals. Monoblock LNBs are available primarily for satellites with fixed 2°/3°/4.3° or 6° spacing, covering Ku band with single, twin, and quad output options.
This LNB type can connect multiple set-top boxes (STBs) using a single RG6 cable, providing an energy-efficient, multi-user receiving solution. Also known as a stack LNB.
Unicable is a satellite television distribution method supporting multiple receivers (up to 32 per EN 50494 & EN 50607 standards).
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