العربية
NJR2845B Series – Ku-band PLL LNB (Internal Reference)
A single-band Ku-band LNB covering 11.7 to 12.2 GHz with a highly stable internal PLL reference.
The NJR2845B series is a low-noise block downconverter for the 11.7 to 12.2 GHz Ku-band segment, with its 10.75 GHz PLL local oscillator locked to a built-in, highly stable internal reference. It outputs an IF of 950 to 1,450 MHz with a typical noise figure of 0.8 dB (1.0 dB max), and is offered in four internal-reference stability grades. It is compact and lightweight (210 g F-type / 240 g N-type) and RoHS compliant.
| Parameter | Specification |
|---|---|
| RF Input Interface | Waveguide, WR75 (with Groove) |
| IF Output Interface | Coax. Connector, N-type Female (50 Ω) / Coax. Connector, F-type Female (75 Ω) |
| RF Frequency | 11.7 to 12.2 GHz |
| IF Frequency | 950 to 1,450 MHz |
| LO Frequency | 10.75 GHz |
| Linear Gain | 57 dB typ., 52 dB min. @ +25C |
| Noise Figure(NF) | 0.8 dB typ., 1.0 dB max. @ +25C |
| Input Power Voltage Requirement | +24 VDC (+10 to +24 VDC) |
| Current Consumption | 170 mA max. |
| Operating Temperature Range | -40 to +60C |
| Waterproof / Dustproof (IP-code) | IP67 |
| Weight | F-type: 210 g / N-type: 240 g |
| Dimensions | (L) 82.2 x (W) 40 x (H) 40 mm (w/o Interfaces & Screws) |
