CPI LRK2XXX-XXXXXXX 1:2 Ku-Band Redundant LNA System

CPI LRK2XXX-XXXXXXX 1:2 Ku-Band Redundant LNA System

The CPI LRK-1000 1:2 Ku-band redundant LNA system protects two receiver paths with one shared standby LNA. If either primary LNA fails, the controller automatically transfers the affected RF path to the standby unit, providing efficient redundancy for dual-polarization or two-channel Ku-band earth stations.

System Configuration: 1:2 redundancy
LNA Configuration: Two primary LNAs and one shared standby LNA
RF Paths: Two independent receiving paths
Band Frequency Range: 10.95–12.75 GHz or 10.70–12.75 GHz
LNA Noise Temperature Options: 65 K, 70 K, 80 K or 90 K
Standard System Noise Contribution: 5 K for Pol. 1; 9 K for Pol. 2; 14 K through standby, excluding LNA
Gain: 60 dB min., 63 dB typ.
Optional Gain: 50 dB min., 53 dB typ.
Gain Match Between LNAs: 1 dB max.
Gain Flatness: ±0.75 dB over the full band; ±0.30 dB per 40 MHz
Output P1dB: +10 dBm min., +13 dBm typ.
High-Power Option: +18 dBm min., +20 dBm typ.
Input VSWR: 1.20:1 typ., 1.25:1 max.
Output VSWR: 1.20:1 typ., 1.25:1 max.
RF Input Connectors: WR-75 waveguide flanges
RF Output Connectors: Type N female; SMA female available
Plate Assembly Power: 11–24 VDC for LNAs; 10 W typ.
Automatic Switchover Time: 100 ms max.
Controller Interface: 10/100Base-T Ethernet
Remote M&C: SNMP v1, v2c and v3; RS-232, RS-422, RS-485 and parallel I/O
Controller Power: 100–135 or 180–240 VAC, 47–63 Hz
Plate Operating Temperature: -40°C to +60°C
Compliance: CE certified, RoHS compliant and EAR99

Key Features:

• One shared standby LNA protects two primary LNAs

• Supports two receiver paths or polarization channels

• Automatic transfer of either failed path to the standby LNA

• CPI LK-12000 Series Ku-band low noise amplifiers

• 10.70–12.75 GHz or 10.95–12.75 GHz frequency coverage

• Outdoor antenna-hub plate assembly

• High-quality dual waveguide and coaxial switches

• Manual or automatic operating modes

• Manual RF switch override

• Independent standby-LNA selection for either RF path

• LNA current and external alarm monitoring

• User-selectable LNA current tolerance window

• Dual redundant controller power supplies

• Front-panel RF-path, switch-position and system-status display

• Standard output coaxial isolators

• Optional 13.75–14.50 GHz transmit-reject filters

• Optional -40 dB input crossguide couplers

• Optional -20 dB output coaxial couplers

• Optional terminated offline input and output

• Ethernet, serial and parallel remote control

• Audible fault alarm

• Standard control cables from 100 to 250 ft.

• Optional remote control panel for operation up to 4,000 ft. away