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NJRC NJR2937E Ku-Band External Reference PLL LNB

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  • RF Frequency: 10.95 - 11.70 GHz
  • L.O. Stability: Depends on Ext Ref
  • Noise Figure: 0.8 dB
  • IF Connector: F-Type Female


RF Frequency10.95 to 11.70 GHz
Local Frequency10.00 GHz
Local StabilityDepends on External Reference
IF Frequency950 to 1700 MHz
Input InterfaceWR-75 with Groove
Output InterfaceF-type, female (75 ohm)
Noise Figure0.8 dB typ.
Linear Gain (at 25C)60 dB typ.
Requirement for External Reference
Input PortIF Output connector
Frequency10 MHz (sine-wave)
Input Power-5 to +5 dBm @ Input port
Phase Noise-135 dBc/Hz max. @ 100 Hz

-143 dBc/Hz max. @ 1 kHz

-135 dBc/Hz max. @ 10 kHz

L.O. Phase Noise -75 dBc/Hz @ 100 Hz

-80 dBc/Hz @ 1 kHz

-85 dBc/Hz @ 10 kHz

-95 dBc/Hz @ 100 kHz

L.O. Leakage Level-25 dBm max. at the IF output connector

-60 dBm max. at the RF input flange
Spurious-140 dBm max.

At input, fixed frequency spurious, unrelated to test CW signal. (Measured at specified IF band)

-55 dBc max.

With test CW signal -10 dBm IF output (measured at specified IF band)
Input VSWR2.5:1 typ.
Output VSWR2.3:1 max.
Power Requirement+24 VDC (+12 to +24 VDC)
Current Drain200 mA max.
Temperature Range (ambient)


-40 to +60° C

-40 to +80° C
Size100.5 mm (L) x 40 mm (W) x 40 mm (H)

(3.96" (L) x 1.57" (W) x 1.57" (H))
Weight260 g (0.57 lbs)

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