CPI LRKA1XXX-XXXXXXX 1:1 Ka-Band Redundant LNA System

CPI LRKA1XXX-XXXXXXX 1:1 Ka-Band Redundant LNA System

The CPI LRKA-1000 Series 1:1 Ka-band redundant LNA system minimizes receiver downtime by automatically switching from the primary low noise amplifier to a dedicated standby LNA when a failure is detected. The system includes two CPI LK-20S000 Series LNAs, an outdoor plate assembly, an indoor redundancy controller and an interconnecting control cable.

System Configuration: 1:1 redundancy
LNA Configuration: One primary and one standby LNA
Band Frequency Range: 18.2–20.2 GHz, 20.2–21.2 GHz or 17.7–21.2 GHz
LNA Noise Temperature: 110 K or 120 K, depending on frequency band
System Gain: 56 dB min. standard; 46 dB min. optional
Gain Flatness: ±1.5 dB over the full band; ±0.5 dB per 40 MHz
Gain Match Between LNAs: 1 dB max.
Output P1dB: +10 dBm min. standard; +18 dBm min. optional
Input VSWR: 1.50:1 typ.
Output VSWR: 1.25:1 typ.
RF Input Connector: WR-42 waveguide flange
RF Output Connector: SMA female
Plate Assembly Power: 11–28 VDC, 6 W typ.
Automatic Switchover Time: 100 ms max.
Controller Network 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 standby LNA dedicated to one primary LNA

• Automatic RF switchover following primary LNA failure

• CPI LK-20S000 Series Ka-band low noise amplifiers

• Outdoor antenna-hub plate assembly

• High-quality dual waveguide/coaxial RF switches

• Manual or automatic operation

• Manual RF switch override

• Current monitoring, external alarm monitoring or both

• User-selectable LNA current tolerance window

• Front-panel switch-position and unit-status display

• Dual redundant controller power supplies

• Standard output coaxial isolators

• Optional 27.5–31.0 GHz transmit-reject filter

• Optional -40 dB input crossguide coupler

• Optional -20 dB output coaxial coupler

• Optional terminated offline input and output

• Audible fault alarm

• Standard control cables from 100 to 250 ft.

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