New Japan Radio NJRC NJR2825 Inmarsat Global Express Ka-Band PLL LNB
New Japan Radio Ka-band LNB for use on the Inmarsat Global Express Satellite network
NJR2825 Inmarsat Global Express Ka-Band PLL LNB
The New Japan Radio NJRC NJR2825 series Ka-Band Low Noise Block Downconverter (LNB) is specifically designed to be used in conjunction with Inmarsat Global Express satellites. The NJR2825 LNB is configured to operate from 19.200 to 20.200 GHz with a local oscillator frequency of 18.250 GHz.
This Ka LNB offers a WR42 waveguide flange input port, N-Type female output connector, and provides highly stable operation with it's internally referenced configuration of 3 ppm.
Features
Highly-stable internally referenced
LO Stability: +/- 3 ppm
Low Noise Figure
Noise Figure: 1.3 dB
High level block diagram
Reliable All-weather Performance
NJR2825 LNB Dimensions
| Input Interface | Waveguide, WR42 with O-ring Groove |
| Output Interface | Coaxial Connector, N-type female connector (50 ohm) |
| Noise Figure | 1.3 dB max. @ +25 °C 1.6 dB max. over all environmental conditions |
| Conversion Linear Gain | 65 dB min., 75 dB max. |
| Power Output at 1dB G.C.P. | +10 dBm min. |
| The Third Order Intercept Point | +20 dBm min. |
| Integrated Phase Jitter (DSB) | 2.0 degree RMS (1kHz – 1MHz) |
| Internal Reference Stability | Over temperature: +/- 3.0 ppm max. |
| Power Requirement | +12 to +30 DC Power |
| Power Consumption | 4 W max. |
| Temperature | Operational Temperature: -40 to +73 °C |
| Storage Temperature: -40 to +85 °C | |
| Waterproofing (IP code) | IP65 |
| Dimension & Housing | 85 (L) x 68 mm (W) x 34 mm (H) [3.35” (L) x 2.68” (W) x 1.34” (H)] excluding connectors and mounting ears |
| Weight | 0.4 kg [0.9 lbs] |
| MTBF | 100,000 hours min. at +40 °C |
Inmarsat Global Express Satellite Network access, Ka-band satellite reception
