CPI Series 1383 3.8 M X-Band Circular Rx/Tx Antenna

CPI Series 1383 3.8 M X-Band Circular Rx/Tx Antenna

The CPI Series 1383 3.8 M X-Band Circular Rx/Tx Antenna delivers high-gain performance for demanding government, defense, and specialized satellite communications networks.

It operates across 7.25-7.75 GHz receive and 7.90-8.40 GHz transmit frequencies. Its four-piece SMC reflector provides up to 48.3 dBi gain, DSCS-compliant sidelobe performance, and a 1.0 dB axial ratio.

The rugged elevation-over-azimuth mount supports standard and inverted elevation configurations for fixed X-band earth station installations. Available now at Esatcom Inc.

Antenna diameter: 3.8 m

Antenna series: CPI Series 1383

Application: X-band satellite receive and transmit

Polarization: Circular

Receive Frequency Range: 7.25-7.75 GHz

Transmit Frequency Range: 7.90-8.40 GHz

Receive midband gain: 47.6 dBi, ±2.0 dB

Transmit midband gain: 48.3 dBi, ±2.0 dB

Sidelobe compliance: DSCS requirements

Axial ratio: 1.0 dB

VSWR: 1.25:1 maximum

Clear-sky noise temperature at 10° elevation: 60 K

Clear-sky noise temperature at 20° elevation: 53 K

Clear-sky noise temperature at 30° elevation: 47 K

Port-to-port isolation: 20 dB

Reflector material: Glass-fiber-reinforced polyester SMC

Antenna optics: Four-piece offset-fed prime-focus design

Mount type: Elevation over azimuth

Standard elevation adjustment: 12°-90°

Inverted elevation adjustment: 0°-15°

Azimuth adjustment: Continuous 360° with 30° fine adjustment

Mast requirement: 10-inch Schedule 40 pipe, 10.75-inch OD

Operational wind speed: 50 mph / 80 km/h

Survival wind speed: 125 mph / 201 km/h

Operating temperature: -40°F to +140°F / -40°C to +60°C

Survival temperature: -50°F to +160°F / -46°C to +71°C

Operational rain rate: 0.5 inch per hour

Survival rain rate: 2 inches per hour

Survival ice loading: 0.5-inch radial ice

Environmental exposure: Suitable for coastal and industrial conditions

Solar radiation: 360 BTU/h/ft²

Key Features

• High-gain 3.8 m X-band Rx/Tx antenna

• Circular polarization with 1.0 dB axial ratio

• 47.6 dBi receive and 48.3 dBi transmit gain

• DSCS-compliant sidelobe performance

• Four-piece SMC reflector for easier transportation

• Standard or inverted elevation configuration

• Continuous 360° azimuth positioning

• Survival wind rating up to 125 mph