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

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

The CPI Series 1385 3.8 Meter C-Band Circular Tx/Rx VSAT Antenna is a rugged, high-performance satellite antenna designed for fixed C-band communications networks.

The antenna supports circular polarization across standard C-band transmit and receive frequencies. Its four-piece SMC reflector and 0.6 F/D offset-fed optics provide dependable gain, controlled sidelobes, and convenient field installation.

A standard circular-polarization feed is supplied with a transmit axial ratio of 1.3. An optional F-1 station feed improves transmit axial ratio to 1.09 for applications requiring enhanced polarization purity.

Antenna series: CPI Series 1385
Antenna diameter: 3.8 m
Application: C-band satellite transmit and receive
Polarization: Circular
Receive frequency: 3.625–4.20 GHz
Transmit frequency: 5.845–6.425 GHz
Receive midband gain: 41.80 dBi, ±0.5 dB
Transmit midband gain: 46.30 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: 1.40°
Transmit 3 dB beamwidth: 0.90°
Receive 15 dB beamwidth: 3.20°
Transmit 15 dB beamwidth: 2.00°
On-axis cross-polarization isolation: Receive greater than 15.00 dB; transmit greater than 17.70 dB
Cross-polarization isolation within 1 dB beamwidth: Receive greater than 15.00 dB; transmit greater than 17.70 dB
Standard transmit axial ratio: 1.3
Optional F-1 feed transmit axial ratio: 1.09
Optional F-1 feed transmit XPD equivalence: Greater than 27.3 dB
Power handling: 1 kW
Receive waveguide interface: CPR 229 F
Transmit interface: CPR 137 or Type N
Noise temperature at 5° elevation: 62 K
Noise temperature at 10° elevation: 52 K
Noise temperature at 20° elevation: 45 K
Noise temperature at 40° elevation: 43 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

Key Features

• Circularly polarized C-band transmit and receive operation

• 41.80 dBi receive and 46.30 dBi transmit gain

• Standard 1.3 transmit axial ratio

• Optional high-performance F-1 station feed

• Four-piece SMC reflector construction

• Low-blockage offset-fed antenna optics

• 1 kW RF power handling

• Continuous azimuth adjustment

• Survival wind rating up to 125 mph