Nisshinbo NJT8370UNMK

Nisshinbo NJT8370UNMK Ku-band 13.75 - 14.5 GHz 25W BUC

The NJT8370UNMK is a compact and high-performance Ku-band 25W BUC (Block Upconverter) designed for VSAT uplink applications. It operates over 13.75–14.5 GHz (universal Ku-band) with a 12.8 GHz local oscillator, converting L-band IF signals (950–1700 MHz) to RF for reliable satellite transmission. With saturated output power 25W (+44 dBm), stable gain, and support for external 10 MHz reference, it ensures consistent uplink performance in broadband and enterprise satellite systems. 

Key Specifications

RF Frequency: 13.75 – 14.5 GHz (Universal Ku-band)

IF Frequency: 950 – 1700 MHz

Local Oscillator: 12.8 GHz

Saturated Output Power: +44 dBm min. @ +25 ℃ (Psat)

Gain: 72 dB nom., 66 dB min.

Noise Figure: 20 dB max.

External Reference: 10 MHz input (PLL locked operation)

Input Interface: N-type female (50Ω)

Output Interface: WR-75 waveguide

Power Supply: +36 to +60 V DC Power

Port For Voltage Input: IF Connector

M&C Option: FSK M&C

Mechanical & Environmental

Waveguide Output: WR-75 (grooved)

Dimensions: 180 × 130 × 80 mm

Weight: 2.5 kg

Operating Temperature: -40°C to +75°C

Waterproof: IP67 

Applications

VSAT uplink systems

Broadband satellite terminals

Enterprise and telecom networks

Remote communication systems