SMW Ka LNB 25.50-27.00 GHz Earth Observation

SMW Ka LNB 25.50–27.00 GHz Earth Observation PLL LNB

The SMW Ka LNB 25.50–27.00 GHz Earth Observation model is a precision downconverter developed for satellite remote sensing and Earth-observation applications. It combines high dynamic range with auto-switching between internal and external 10 MHz references and includes Modbus RTU RS-485 monitoring & control. The design offers excellent linearity, low phase noise, and robust performance under extreme temperature conditions.

Input Frequency: 25.50 – 27.00 GHz

Local Oscillator: 23.85 / 24.55 GHz

Output Frequency: 2400 MHz ± 750 MHz or 950 – 2450 MHz
Noise Figure: typ. 2.2 dB (169 K), max 2.5 dB (226 K) @ 23 °C
Gain: typ. 50 dB (48 – 52 dB range); flatness ± 1.5 dB max
Phase Noise: –35 @ 10 Hz • –60 @ 100 Hz • –78 @ 1 kHz • –84 @ 10 kHz • –93 @ 100 kHz • –112 @ 1 MHz
LO Reference: Auto External 10 MHz (–10 to +10 dBm) / Internal ±2.5 ppm (–40 to +80 °C)
Output P1dB: +15 dBm min  Output IP3: +25 dBm min
Input Connector: WR-34 waveguide (PBR-260 flange, pressurizable 0.1 bar max)
Output Connector: N-female (50 Ω, optional SMA-f)
Power Supply: +12 – +24 V DC via output or separate connector, 6.5 W max
M&C Interface: Modbus RTU RS-485 with alarm output (LNA fail, LO lock, supply low, etc.)
Dimensions: 144 × 74 × 45 mm  Weight: 430 g
Operating Temperature: –40 to +80 °C  MTBF: > 690 000 h (Ground Fixed)
Country of Origin: Sweden