CPI Series 1185 1.8 M C-Band Dual-Axis Motorized Rx/Tx VSAT Antenna

CPI Series 1185 1.8 M C-Band Dual-Axis Motorized Rx/Tx VSAT Antenna

The CPI Series 1185 1.8 M C-Band VSAT Antenna provides motorized dual-axis positioning for commercial, government, broadcast, and enterprise satellite communications.

It covers 3.625-4.20 GHz receive and 5.85-6.425 GHz transmit frequencies. The one-piece SMC reflector and offset-fed prime-focus optics deliver high gain, controlled sidelobes, and reliable C-band performance.

The galvanized steel elevation-over-azimuth mount provides continuous 360° azimuth adjustment, 0.10° tracking accuracy, and electrical connection to an antenna control unit. Available now at Esatcom Inc.

Antenna diameter: 1.8 m / 71 inches

Antenna series: CPI Series 1185

Application: C-band satellite receive and transmit

Available polarization: Linear or circular, depending on feed configuration

Receive Frequency Range: 3.625-4.20 GHz

Transmit Frequency Range: 5.85-6.425 GHz

Receive midband gain: 35.50 dBi, ±0.2 dB

Transmit midband gain: 39.50 dBi, ±0.2 dB

VSWR: 1.3:1 maximum

Linear cross-polarization isolation: Greater than 30 dB on axis

Linear noise temperature at 10° elevation: 56 K

Linear noise temperature at 20° elevation: 49 K

Linear noise temperature at 30° elevation: 47 K

Linear noise temperature at 40° elevation: 46 K

Circular noise temperature at 10° elevation: 30 K

Circular noise temperature at 20° elevation: 23 K

Circular noise temperature at 30° elevation: 21 K

Circular noise temperature at 40° elevation: 20 K

Reflector material: Glass-fiber-reinforced polyester SMC

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

Mount type: Dual-axis motorized elevation-over-azimuth mount

Mount construction: Galvanized steel

Elevation adjustment: 10°-80°

Azimuth adjustment: Continuous 360°

Angular tracking travel: ±10° elevation and ±10° azimuth within the adjustment range

Actuators: Recirculating ballscrews

Control interface: Electrical connection to ACU

Tracking accuracy: 0.10°

Mast requirement: 3.5-inch Schedule 40 pipe, 4.0-inch OD

Approximate net weight: 445 lb / 200 kg

Operational wind speed: 45 mph / 72 km/h

Survival wind speed: 125 mph / 201 km/h

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

Survival temperature: -22°F to +160°F / -30°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

• Motorized dual-axis C-band VSAT antenna

• Linear or circular polarization feed configurations

• 35.50 dBi receive and 39.50 dBi transmit gain

• Greater than 30 dB linear on-axis cross-polarization isolation

• One-piece SMC reflector

• Continuous 360° azimuth adjustment

• 0.10° tracking accuracy

• Electrical interface to antenna control unit

• Survival wind rating up to 125 mph