CPI BRK-1100 1:1 Ku-Band Redundant LNB System, 10.95–12.75 GHz
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Product details
The CPI BRK-1100 is a 1:1 redundant LNB system from CPI's BRK-1000 Series for Ku-Band earth stations. It protects one receive chain: an online LNB and a hot spare share an outdoor switch plate at the antenna hub, and the indoor controller switches to the spare automatically if the online LNB fails.
The plate takes Norsat Ku-band PLL or externally referenced LNBs, ordered separately, on a WR-75 waveguide input, in one of three LO plans: 10.95–11.70 GHz (10.00 GHz LO), 11.70–12.20 GHz (10.75 GHz LO) or 12.25–12.75 GHz (11.30 GHz LO). Options include input isolators, Tx reject filters, crossguide couplers, offline LNB ports, a remote control panel and ±48 VDC power.
Order the plate and controller as BRK-1100, choose a band plan, and specify the Norsat Ku-band LNBs separately; Digisat can quote both together. The BRK-1000 Series comes in 2 listed models; compare them on the series page.
Other models in this series
- BRK-1200: 1:2 system
Compare all 2 CPI BRK-1000 Series Ku-Band Redundant LNB System models
Specifications
| Part number | BRK-1100 |
|---|---|
| Series | CPI BRK-1000 |
| Input frequency | 11.70–12.20 GHz (A), 12.25–12.75 GHz (B) or 10.95–11.70 GHz (C) |
| Output frequency | 950–1450 MHz (A, B); 950–1700 MHz (C) |
| LO frequency | 10.75 GHz (A), 11.30 GHz (B), 10.00 GHz (C) typ. |
| LNBs | Norsat Ku-band PLL or externally referenced LNBs, ordered separately |
| External reference (externally referenced LNBs) | 10 MHz, -5 to +5 dBm |
| Added system noise temperature (typ.) | 10 K standard; add 2 K with couplers, 13 K with Tx reject filters, 10 K with waveguide isolators |
| Gain | 55 dB min., 60 dB typ. |
| Gain flatness | ±0.5 dB per 27 MHz |
| Gain stability | ±0.25 dB max. per day at constant temperature; -0.06 dB per °C |
| Input VSWR | 2.00:1 typ. without isolators; 1.25:1 typ., 1.30:1 max. with isolators; 1.30:1 typ., 1.35:1 max. with isolators and Tx filters |
| Output VSWR | 1.80:1 typ., 2.00:1 max. |
| Output P1dB | +2 dBm min. (+5 dBm typ.) |
| Output IP3 | +12 dBm min. (+15 dBm typ.) |
| Frequency stability | ±10 kHz, -40 °C to +60 °C |
| Phase noise (typ.) | -65 / -75 / -80 / -90 dBc/Hz (100 Hz / 1 kHz / 10 kHz / 100 kHz) |
| Max. input power (no damage) | 0 dBm |
| Desensitization threshold, 13.75–14.50 GHz | -20 dBm max. without Tx filters; +30 dBm max. with Tx filters |
| RF input | WR-75 waveguide flange |
| RF output and offline out | Type F female (75 Ω) or Type N female (50 Ω) |
| Offline in, coupler in | Type N female (50 Ω) |
| Plate operating temperature | -40 °C to +60 °C |
| Controller | 1RU, 19 in rack mount; dual redundant power supplies; universal AC input |
| Controller M&C | 10/100Base-T Ethernet (SNMP v1/v2c/v3), RS-232/422/485 serial, parallel I/O |
CPI notes that commercial Ku-band LNBs may measure up to 15 K above their stated noise temperature, so system noise depends on the LNBs fitted.
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