Internal Reference Type Palapa C-band PLL LNB
MODEL NO.
NJS8476H / S
Internal Reference Type C-band PLL LNB
MODEL NO.
NJS8477H / S
Internal Reference Type Insat C-band PLL LNB
MODEL NO.
NJS8478H / S,
<Description>
NJS8479H
(LO:5.95GHz)
This specification defines the Low Noise Amplifier and block downconverter intended for the satellite data
communication downlink application in 3.400 to 4.200 GHz / Palapa C-band, 3.625 to 4.200 GHz / C-band and 4.500
to 4.800 GHz, Insat C-band.
These LNBs have a combined 3-stage HEMT amplifier and block downconverter with Phase Locked Local Oscillator
which is constituted with a S-band VCO, Multiplier, Loop Filter and TCXO providing high stability and low phase noise.
All specifications shall apply throughout the range of the specified environmental conditions unless otherwise
specified.
<Line-Up>
Model No.
NJS8476H
NJS8476S
NJS8477H
NJS8477S
NJS8478H
NJS8478S
NJS8479H
RF Frequency
3.400 to 4.200 GHz
3.625 to 4.200 GHz
4.500 to 4.800 GHz
Local
Frequency
5.15 GHz
5.15 GHz
5.76 GHz
5.95 GHz
Local Stability
[-40 to +60 擄C]
+/- 10 ppm
+/- 3 ppm
+/- 10 ppm
+/- 3 ppm
+/- 10 ppm
+/- 3 ppm
+/- 10 ppm
IF Frequency
950 to 1,750 MHz
950 to 1,525 MHz
960 to 1,260 MHz
1,150 to 1,450 MHz
Application
Palapa
Standard
Insat
<Specifications>
Item
Input Waveguide Flange
Output Connector
Noise Temperature (at 25 擄C)
Conversion Gain (at 25 擄C)
Conversion Gain Variation
(at 25 擄C)
Local Oscillator Frequency Stability
Specifications
CPR-229
Type F-female (option: N-female)
35 K
59 dB min.
5 dB max. (NJS8477H / 77S / 78H /78S / 79H)
8 dB max. (NJS8476H / 76S)
NJS8476H : 5.15 GHz +/- 10 ppm (Ta: -40 to +60 擄C)
NJS8476S : 5.15 GHz +/- 3 ppm (Ta: -40 to +60 擄C)
NJS8477H : 5.15 GHz +/- 10 ppm (Ta: -40 to +60 擄C)
NJS8477S : 5.15 GHz +/- 3 ppm (Ta: -40 to +60 擄C)
NJS8478H : 5.76 GHz +/- 10 ppm (Ta: -40 to +60 擄C)
NJS8478S : 5.76 GHz +/- 3 ppm (Ta: -40 to +60 擄C)
NJS8479H : 5.95 GHz +/- 10 ppm (Ta: -40 to +60 擄C)
-63 dBc/Hz at 100 Hz
-73 dBc/Hz at 1 kHz
-83 dBc/Hz at 10 kHz
-90 dBc/Hz at 100 kHz
Rev.06 C/XC/Palapa C-PLL LNB
Phase Noise (SSB)
Copyright 漏 1999 New Japan Radio Co., Ltd.
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