CPI Series 1385 3.8 M X-Band Circular Tx/Rx VSAT Antenna

CPI Series 1385 3.8 m X-Band Circular Tx/Rx VSAT Antenna

The CPI Series 1385 3.8 Meter X-Band Circular Tx/Rx VSAT Antenna is engineered for secure government, defense, emergency-response, and specialized satellite communications networks.

It operates across 7.25–7.75 GHz receive and 7.90–8.40 GHz transmit frequencies, delivering up to 48.40 dBi midband gain. Circular polarization, WR112 interfaces, and available X-band filtering make it suitable for demanding fixed X-band earth-station applications.

The four-piece SMC reflector and rugged mounting system support reliable deployment in coastal, industrial, and severe-weather environments.

Antenna series: CPI Series 1385
Antenna diameter: 3.8 m
Application: X-band satellite transmit and receive
Polarization: Circular
Receive frequency: 7.25–7.75 GHz
Transmit frequency: 7.90–8.40 GHz
Receive midband gain: 47.80 dBi, ±0.5 dB
Transmit midband gain: 48.40 dBi, ±0.5 dB
Receive VSWR: 1.3:1 maximum
Transmit VSWR: 1.3:1 maximum
Receive return loss: Better than 17.70 dB
Transmit return loss: Better than 17.70 dB
Receive 3 dB beamwidth: 0.80°
Transmit 3 dB beamwidth: 0.70°
Receive 15 dB beamwidth: 1.60°
Transmit 15 dB beamwidth: 1.50°
On-axis cross-polarization isolation: Receive greater than 23.20 dB; transmit greater than 18.80 dB
Cross-polarization isolation within 1 dB beamwidth: Receive greater than 23.20 dB; transmit greater than 18.80 dB
Power handling: 2 kW
Receive waveguide interface: WR112
Transmit waveguide interface: WR112
X-band filters: Available upon request
Noise temperature at 5° elevation: 60 K
Noise temperature at 10° elevation: 51 K
Noise temperature at 20° elevation: 47 K
Noise temperature at 40° elevation: 47 K
Reflector material: Glass-fiber-reinforced polyester SMC
Antenna optics: Four-piece offset-fed prime-focus design
F/D ratio: 0.6
Mast requirement: 10-inch Schedule 40 pipe, 10.75-inch OD
Elevation adjustment: 12°–90° or 0°–15° for polar latitudes
Azimuth adjustment: Continuous 360° with ±35° fine adjustment
Approximate net weight: 1,125 lb / 511 kg
Approximate packaged weight: 1,882 lb / 855 kg
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
Rain performance: 0.5 inch / 13 mm per hour
Relative humidity: 0–100%, condensing
Environmental exposure: Suitable for coastal and industrial areas

Key Features

• Circularly polarized X-band Tx/Rx operation

• 47.80 dBi receive and 48.40 dBi transmit gain

• 2 kW RF power handling

• WR112 receive and transmit interfaces

• Optional X-band filters

• Four-piece glass-fiber-reinforced SMC reflector

• Low-blockage offset-fed design

• Rugged environmental construction

• Survival wind rating up to 125 mph