Satellite Communications

VSAT components

Ku-band LNB (Single-band)

NJR2837 series

Frequency Organization
RF Frequency: 10.95 to 11.7 GHz
IF Frequency: 950 to 1,700 MHz
LO Frequency: 10.0 GHz
Low Noise Performance
Noise Figure(NF): 0.8 dB typ.
LO Frequency Stability Line-up
H-type: +/- 10 ppm (+/- 100 kHz typ.)
S-type: +/- 3 ppm (+/- 30 kHz typ.)
U-type: +/- 1 ppm (+/- 10 kHz typ.)
Small Size & Light Weight
Weight: 260 g
Other Features
RoHS Compliance

Products Line-up

Model No. RF Frequency Reference Type LO Stability IF Connector
NJR2837H 10.95 to 11.7 GHz Internal Ref. +/- 10 ppm
(+/- 100 kHz typ.)
F-type(75Ω)
NJR2837HN N-type(50Ω)
NJR2837S +/- 3 ppm
(+/- 30 kHz typ.)
F-type(75Ω)
NJR2837SN N-type(50Ω)
NJR2837U +/- 1 ppm
(+/- 10 kHz typ.)
F-type(75Ω)
NJR2837UN N-type(50Ω)

Specifications

Items Parameters
RF Input Interface Waveguide, WR75 (with Groove)
IF Output Interfance Coax. Connector, N-type Female (50 Ω)
Coax. Connector, F-type Female (75 Ω)
Noise Figure(NF) @ +25 ℃ 0.8 dB typ.
Linear Gain @ +25 ℃ 60 dB typ., 55 dB min.
Input Power Voltage Requirement +24 VDC (+12 to +24 VDC)
Operationg Current 250 mA max.
Operating Temperature Range -40 to +60 ℃
Waterproof / Dustproof (IP-code) IP67
Weight 260 g
Dimension
(w/o Interfaces & Screws)
(L) 100.5 x (W) 40 x (H) 40 mm

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