C-band LNB-CPL38 from UMT LLC – High-Performance Low Noise Block Down Converter for Satellite Communication and Broadcasting Systems
The C-band LNB-CPL38 is a high-quality Low Noise Block Down Converter (LNB) designed to receive RF signals in the C-band frequency range (4.75 – 5.3 GHz) and downconvert them to L-band intermediate frequencies (0.95 – 1.5 GHz). This model features a single local oscillator (LO) at 3.8 GHz, ensuring high frequency stability and reliable signal processing for satellite communications, MVDS/MITRIS broadcasting systems, and professional RF transmission setups.
Engineered for outdoor installations, the C-band LNB-CPL38 is housed in a durable, waterproof enclosure, making it ideal for use in harsh weather environments. It can be mounted in close proximity to receiving antennas for minimal signal loss. The input flange is WR-159 and the output interface is N-type female (also available with SMA on request), ensuring broad compatibility with industry-standard RF components.
This LNB is optimized for digital satellite TV systems, DVB-S/DVB-S2, and DVB-C transmission standards, and supports up to 25 carriers, making it suitable for multi-channel broadcast applications and high-density headend deployments.
🔧 Technical Specifications:
-
Model: C-band LNB-CPL38
-
Input Frequency Range: 4.75 – 5.3 GHz
-
Output Frequency Range: 0.95 – 1.5 GHz
-
LO Frequency: 3.8 GHz
-
Gain: 50 dB
-
Automatic Gain Control (in-built)
-
Connector Type: N-type (female)
-
Input Flange: WR-159
-
Oscillator Type: PLL
-
Max Number of Carriers: 25
-
Enclosure: Weatherproof, suitable for outdoor use
✅ Key Features:
-
Stable PLL-based LO at 3.8 GHz for reliable downconversion
-
Wide input frequency range supports various satellite and terrestrial C-band signals
-
Compatible with RRL and standard receive antennas
-
High gain and low noise figure for improved signal quality
-
Ideal for use in MVDS, MITRIS, and DVB broadcast systems
-
Supports multi-carrier operations (up to 25 carriers)
-
Robust, waterproof construction for long-term outdoor deployment
🌍 Applications:
-
C-band satellite reception
-
DVB-S/S2 and DVB-C broadcast systems
-
MVDS / MITRIS headend installations
-
Professional RF signal transport systems
-
Wireless telecom backhaul links using C-band
🤝 For reliable C-band LNB performance with professional-grade specifications, C-band LNB-CPL38 is a trusted choice for engineers and system integrators working in modern satellite communication and digital TV distribution. Order now or contact us for integration support and custom solutions.
| Input parameters |
| Input Frequency |
4.75 – 5.3 GHz |
| Waveguide interface |
WR-159 |
| Connector (by order) |
N-type (female) |
| Input VSWR |
2.5:1 |
| Impedance |
50 Ohm |
| Output parameters |
| Output Frequency |
950 … 1500 MHz |
| Output VSWR |
2.2:1 |
| Output Interface |
N-type / SMA (female) |
| Impedance |
50 Ohm |
| Local frequency |
| LO frequency |
5.15 GHz |
| LO instability |
± 2 to ± 50 kHz (room temp.)
± 10 to ± 100 kHz (over room temp.) |
| LO Phase noise: |
|
| @1kHz |
-65dBc/Hz |
| @10kHz |
-80dBc/Hz |
| @100kHz |
-95dBc/Hz |
| @1MHz |
-110dBc/Hz |
| Characteristics |
| Gain |
58 dB |
| Flatness |
± 2 dB @ full band |
| Ripple |
± 0.75 dB @ 30 MHz |
| Variation |
± 2 dB max |
| Noise figure |
30K max |
| P1dB |
+3 dBm |
| Image rejection |
45 dB min |
| Power Supply |
| Input voltage |
+12 V … + 24 V DC |
| Required current |
300 mA max |
| Environmental |
| Operating temperature |
-30℃ to +60℃ |
| Storage temperature |
-40℃ to +80℃ |
| Operating humidity |
0% – 95% RH |
| Mechanical |
| Dimensions (W x H x D) |
81x62x135 mm |
| Weight |
0.520 kg |
