SMW X LNB 7.25-7.75 GHz 1 Band | Gen 2

SMW X LNB 7.25–7.75 GHz 1-Band PLL LNB

The SMW X LNB 7.25–7.75 GHz 1-Band is a precision low-noise downconverter designed for professional X-band satellite applications. It features an external 10 MHz or 100 MHz reference with automatic fallback to internal ±25 ppm reference, integrated RS-485 Modbus RTU monitoring, and sum alarm outputs. With ultra-low noise, excellent image rejection, and high linearity, it ensures stable performance in mission-critical SATCOM and Earth-observation systems.

Input Frequency: 7.25 – 7.75 GHz
Local Oscillator: 6.30 GHz
Output Frequency: 950 – 1450 MHz
Noise Figure: typ. 0.60 dB / 42 K, max 0.69 dB / 49 K @ 23 °C
Gain: typ. 60 dB; variation ±0.1 dB / 24 h @ 23 °C
Flatness: ±0.4 dB (30 MHz) / ±2 dB (full band)
Phase Noise: –45 @ 10 Hz • –75 @ 100 Hz • –95 @ 1 kHz • –100 @ 10 kHz • –122 @ >1 MHz
Image Rejection: ≥ 60 dB  Group Delay: ±1 ns max
Output P1dB: +15 dBm min  Output IP3: +26 dBm min
LO Reference: External 10 MHz or 100 MHz (fallback to internal ±25 ppm)
Input Connector: WR-112 / R84 flange (PBR-84), pressurizable to 0.1 bar
Output Connector: N-female (50 Ω), optional SMA-female (50 Ω)
Power Supply: +12 to +28 V DC (3 W typ.)
Alarm / M&C: RS-485 (Modbus RTU) with sum alarm for LNA fail, LO lock, voltage or signal faults
Dimensions: 135 × 56 × 51 mm (N) | 128 × 56 × 51 mm (SMA)
Weight: 381 g (N) / 375 g (SMA)
Operating Temp.: –40 to +80 °C MTBF: > 690 000 h (Ground Fixed)
Country of Origin: Sweden