Nisshinbo NJR2828H

Nisshinbo NJR2828H K-band PLL LNB

The NJR2828H is a high-performance K-band PLL LNB designed for O3b satellite communication systems, covering 18.372–19.300 GHz with a 17.4 GHz local oscillator. It features low noise temperature (101 K typ.), high gain, and automatic internal/external reference switching, ensuring reliable RF signal downconversion to L-band (972–1900 MHz) for high-throughput satellite applications.

Key Features

18.372–19.300 GHz K-band operation (O3b band)

Local oscillator: 17.4 GHz

972–1900 MHz IF output

Low noise temperature: 101 K typ.

High conversion gain: 55 dB min.

Automatic internal / external 10 MHz reference

Stability: ±1.5 ppm (typ.)

WR-42 waveguide input

N-type connector (50Ω)

Weatherproof outdoor design

Reference Switching

The NJR2828H supports automatic phase-locking to either internal or external 10 MHz reference:

External reference present → locks to external

No external reference → switches to internal

Ensures continuous operation without manual configuration

Applications

O3b / MEO satellite communication systems

High-throughput satellite (HTS) networks

Gateway and ground stations

Broadband satellite terminals