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  2. New Japan Radio NJRC Universal Ku-Band 2LO PLL LNB (Switchable Local) - Internal Reference (±50ppm) Model No. NJR2841L, NJR2842L, & NJR2843L series
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New Japan Radio NJRC Universal Ku-Band 2LO PLL LNB (Switchable Local) - Internal Reference (±50ppm) Model No. NJR2841L, NJR2842L, & NJR2843L series

The NJRC NJR2841L Universal Ku-Band 2 L.O. PLL LNB provide full coverage of the Ku Band by utilizing two local oscillators and a mechanical switch to switch between them. The NJRC NJR2841L Universal Ku-Band 2 L.O. PLL LNB provides an input frequency range of 10.7-12.75GHz with +/-100kHz of local oscillator stability.

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Key Features


* Switchable Local
・Local Frequency: 9.75 / 10.6 GHz


* Full Ku-band Coverage

・ RF Frequency: 10.70 – 12.75 GHz
     (Low Band) 10.70 – 11.70 GHz
     (High Band) 11.70 – 12.75 GHz

* Local Switching Line-up
   Local Frequency Selected by
    ・ Mechanical Switch: NJR2841 series
    ・ 22kHz Tone On/Off: NJR2842 series
    ・ Input Voltage (High/Low): NJR2843 series


* Small Size & Light Weight
    ・ Weight: 240 g (N-type Connector Model)
    ・ Weight: 210 g (F-type Connector Model)


* RoHS Compliance

Model No.

RF Frequency

Local Frequency

IF Frequency

Local Stability

[-40 to +60 °C]

Local Frequency Selected by


IF Connector

NJR2841L

NJR2841LN


10.70 to 11.70 GHz

/ 11.70 to 12.75 GHz

9.75 GHz

/ 10.6 GHz

950 to 1,950 MHz
/ 1,100 to 2,150
MHz

+/- 10 ppm

Mechanical Switch

F-TYPE 

N-TYPE

NJR2842L

NJR2842LN

10.70 to 11.70 GHz

/ 11.70 to 12.75 GHz

9.75 GHz

/ 10.6 GHz

950 to 1,950 MHz
/ 1,100 to 2,150
MHz


+/- 10 ppm

22kHz Tone On/Off

F-TYPE 


N-TYPE

NJR2843L

NJR2843LN

10.70 to 11.70 GHz

/ 11.70 to 12.75 GHz

9.75 GHz

/ 10.6 GHz

950 to 1,950 MHz
/ 1,100 to 2,150
MHz



+/- 10 ppm

Input Voltage (High/Low)

F-TYPE


N-TYPE




ITEM

SPECIFICATIONS

Input Interface
Waveguide, WR75 (with Groove)

Output Interface

N-type, female (50 ohm)

[Model No.: NJR2841LN/42LN/43LN]


F-type, female (75 ohm)

[Model No.: NJR2841L/42L/43L]

Noise Figure at +25 °C

0.8 dB typ., 1.0 dB max.

Linear Gain (Ta.: +25 °C)

48 dB min., 62 dB max.

L.O. Phase Noise

-50 dBc/Hz typ. @ 100 Hz

-70 dBc/Hz typ. @ 1 kHz

-75 dBc/Hz typ. @ 10 kHz

-85 dBc/Hz typ. @ 100 kHz


Depends on the phase noise of the external reference

L.O. Leakage Level-40 dBm max. at the IF Output Connector

-60 dBm max. at the RF Input Flange
Spurious
a) -120 dBm max.
at the input, Fixed frequency spur, unrelated to test CW signal (Measured at specified IF band).

b) -40 dBc typ.
with test CW signal -10 dBm IF output (Measured at specified IF band).
Input V.S.W.R2.5 : 1 typ.

Output V.S.W.R

2.3 : 1 max.

Power Requirement

+24 VDC (+10 to +24 VDC)

Current Drain

200 mA max.

Temperature Range (ambient)
-40 to +60 °C (operating), -40 to +80 °C (storage)
Waterproof/Dustproof (IP Code)
IP 67

Dimension & Housing

( without Interface Connectors )

83.4 mm (L) x 42 mm (W) x 42 mm (H) [Model No.: NJR2841S/41SN]

[3.28" (L) x 1.65" (W) x 1.65" (H)]


82.2 mm (L) x 40 mm (W) x 40 mm (H) [Model No.: NJR2842S/42SN/43S/43SN]

[3.24" (L) x 1.57" (W) x 1.57" (H)]

Weight

240 g [0.53 lbs] [Model No.: NJR2841LN/42LN/43LN]

210 g [0.46 lbs] [Model No.: NJR2841L/42L/43L]








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