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P R O D U C T S

    NJS8477EN


NJS8477EN - EXT. Reference C-Band LNB N-Type   
Model

This unit is a low noise amplifier and a block downconverter (int/ext ref.) for use in C-Band VSAT remote RF terminals

Model

RF Frequency

Local Frequency

Local Stability

IF Frequency

IF Connector

NJS8477EN

3.625 to 4.200 GHz

5.15 GHz

Depends on ext. ref.

950 to 1,750 MHz

N-type

Category: Block Downconverters (LNBs)  /  C-Band   Manufacturer: NJRC - New Japan Radio Company
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Specification
Specification
Parameter

Parameter

Value

Frequency band

3.625 to 4.200 GHz

Input waveguide flange

CPR-229G

Input V.S.W.R.

3:1 max

Noise temp. (Ta=+25 C)

35 K typ. to 45 K max.

Output frequency

950 to 1750 MHz

Conversion gain

60 dB min @ +25C

66 dB max.

Conversion gain variation (Ta=+25C)

2 dB max. in any 50 MHz segment over frequency band

Conversion gain flatness (Ta: +25 C)

8.0 dB max. at 800 MHz BW

Local oscillator frequency stability (Ta= -40 to +60 C)

5.15 GHz nom.

Image rejection

60 dB min.

Output V.S.W.R.

2.5:1 max.

Power requirement

+13.5 to +24 VDC

Current drain

400 mA max.

Phase noise (SSB)

-70 dBc/Hz typ. -65 dBc/Hz max@100 Hz

-80 dBc/Hz typ. -75 dBc/Hz max@1 KHz

-85 dBc/Hz max@10 KHz

-90 dBc/Hz max@100 KHz

-105 dBc/Hz max@1 MHz

Parameter

Value

Operating temperature range

-40 to +60 C

Storage temperature

-40 to +80 C

Humidity

100 %Rh (max)

Vibration

G=5 (f=50±2Hz, t=5 min, Direction; X,Y,Z)

Shock

G=15 (Direction; X,Y,Z)

RF input power

-10 dBm (@ CW)

+10 dBm (@ pulse)

Supply voltage

+28 VDC



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