CPI Series 2385 3.8 M Circular C-Band Rx/Tx High-Wind Antenna

CPI Series 2385 3.8 m Circular C-Band Rx/Tx High-Wind Antenna

The CPI Series 2385 circular C-band model is a 3.8 m Rx/Tx antenna for high-wind satellite communications. Covering 3.625–4.200 GHz receive and 5.845–6.425 GHz transmit frequencies, it provides 41.8 dBi receive gain and 46.3 dBi transmit gain. Standard and optional high-performance circular feeds support a range of commercial and government applications.

Antenna Diameter: 3.8 m
Polarization: Circular
Receive Frequency Range: 3.625–4.200 GHz
Transmit Frequency Range: 5.845–6.425 GHz
Receive Midband Gain: 41.8 dBi ±0.2 dB
Transmit Midband Gain: 46.3 dBi ±0.2 dB
Receive Noise Temperature: 62 K at 5°; 52 K at 10°; 45 K at 20°; 43 K at 40° elevation
Receive 3 dB Beamwidth: 1.40°
Transmit 3 dB Beamwidth: 0.90°
Receive Cross-Polarization Isolation: Greater than 15 dB
Transmit Cross-Polarization Isolation: Greater than 17.7 dB
Standard Transmit Axial Ratio: 1.3, equivalent to 17.7 dB XPD
Optional F-1 Feed Axial Ratio: 1.09, equivalent to greater than 27.3 dB transmit XPD
Power Handling: 1 kW
Receive VSWR: 1.3:1 max.
Transmit VSWR: 1.3:1 max.
Receive Interface: CPR-229F
Transmit Interface: CPR-137 or Type N
Reflector Material: Glass-fiber-reinforced polyester SMC
Reflector Construction: Four-piece, easy-to-assemble reflector
Antenna Optics: Offset-fed prime focus, 0.6 F/D
Mast Pipe Interface: 10 in. Schedule 80 pipe, 10.75 in. OD (27.3 cm)
Elevation Adjustment Range: 12°–90°; 0°–15° configuration for polar latitudes
Azimuth Adjustment Range: 360° continuous with ±35° fine adjustment
Wind Performance at 6.14 GHz: 0.5 dB loss at 75 mph
Survival Wind Speed: 150 mph (240 km/h)
Operating Temperature: -40°F to +140°F (-40°C to +60°C)
Operational Rain Rate: 0.5 in./h (13 mm/h)
Relative Humidity: 0–100% condensing
Atmospheric Resistance: Suitable for coastal and industrial environments
Solar Radiation: 360 BTU/h/ft²

Key Features

• 3.8 m circularly polarized C-band Rx/Tx antenna

• 3.625–4.200 GHz receive frequency range

• 5.845–6.425 GHz transmit frequency range

• 41.8 dBi receive and 46.3 dBi transmit gain

• 1 kW power handling

• Optional high-performance F-1 circular feed

• CPR-229F receive interface

• CPR-137 or Type N transmit interface

• Four-piece offset SMC reflector

• Specified performance in winds up to 75 mph

• 360° azimuth travel with ±35° fine adjustment

• Polar-latitude elevation configuration

• 150 mph survival wind rating

• Suitable for broadcast, telecommunications and data networks