A C-band LNB, or Low-Noise Block downconverter, is an essential component in satellite communication systems. Designed specifically for C-band satellite reception, it plays a crucial role in receiving and converting high-frequency signals from satellites into lower-frequency signals that can be easily processed by satellite receivers. The C-band LNB operates in the 3.4-4.2 GHz frequency range and employs advanced technology to minimize noise and optimize signal quality. It typically consists of a feedhorn, a mixer, and an oscillator, all housed in a compact and durable enclosure. With its efficient signal conversion capabilities, the C-band LNB enables reliable and high-performance reception of C-band satellite broadcasts, making it a fundamental component for satellite TV, internet, and data services worldwide.
Industry-specific attributes
| FTA(Free To Air) | Yes |
| Type | Digital |
| High Definition | Yes |
Other attributes
| Place of Origin | Anhui, China |
| Brand Name | BWEI |
| Model Number | BT-380W |
| Input Frequency | 3.7-4.2GHz |
| Output Frequency | 950~1450MHz |
| L.O frequency | 5150MHz |
| Gain | >65 dB typ |
| Noise | <13 13 °K typ |
| Noise Figure | <17 17 °K typ |
| Output Connector | F-female Connector |
| Output Impedance | 75Ω |
| Input VSWR | 2.5:1(max) |
| Output VSWR | 2.0:1(max) |
Packaging and delivery
| Selling Units: | Single item |
| Single package size: | 19X16X12 cm |
| Single gross weight: | 0.500 kg |
Lead time
| Quantity (pieces) | 1 – 200 | 201 – 500 | 501 – 1000 | > 1000 |
| Lead time (days) | 7 | 15 | 25 | To be negotiated |
| C-Band LNB(LNBF) | C-Band LNB(PLL) |
| Input Frequency | 3.4 to 4.2GHz | 3.8 to 4.2GHz |
| Output Frequency | 950 to 1750MHz | 950 to 1350MHz |
| L.O.Frequency | 5150 MHz |
| Style | Single (Output) |
| L.O. Stability | ±1.5MHz(-40 to +70) |
| Lo leakage input port | 45dBm |
| Noise Figure | 13/15/17°K typ |
| Conversion Gain | 60dB typ |
| Gain Flatness | ±1dBm(max) |
| Input VSWR | 2.51(max) |
| Output VSWR | 2.01(max) |
| Output Connector | F-female Connector |
| Output Impedance | 75Ω |
| Cross Polar Isolation | 20dB(min) |
| Image Rejection | 45dB(min) |
| Phase Noise | dBc/@10kHz(max) |
| Supply Voltage | 11.5-14.0v(Vertical Polarization) |
| 16.0-19.0v(Horizontal Polarization) |
| Operating Temperature | -40℃ to +70℃ |
| Stroage Temperature | -40℃ to +80℃ |
| Relative Humidity | 0% to 95% |
