CPI Series 1183 1.8 M C- or Ku-Band Receive-Only Antenna

CPI Series 1183 1.8 m C- or Ku-Band Receive-Only Antenna

The CPI Series 1183 is a commercial-grade 1.8 m receive-only VSAT antenna available in C-band or Ku-band configurations. Its one-piece offset SMC reflector delivers 35.5 dBi C-band or 44.5 dBi Ku-band midband gain, with FCC and ITU-R S.580-compliant electrical performance. The galvanized steel Az/El pedestal provides continuous fine adjustment and survives winds up to 125 mph.

Antenna Diameter: 1.8 m (71 in.)
Available Configurations: C-band receive-only or Ku-band receive-only
Reflector Material: Glass-fiber-reinforced polyester SMC
Reflector Construction: One-piece reflector
Antenna Optics: Prime-focus offset feed
Mount Type: Galvanized steel elevation-over-azimuth pedestal with jackscrews
Elevation Adjustment Range: 5°–90° continuous fine adjustment
Azimuth Adjustment Range: 360° continuous
Mast Pipe Interface: 3.5 Schedule 40 pipe, 4.0 in. OD (10.16 cm)
Shipping Weight: 160 lb. (72 kg)

C-Band Receive Specifications

Receive Frequency Range: 3.625–4.200 GHz
Midband Gain: 35.5 dBi ±0.5 dB
3 dB Beamwidth: 2.9°
Antenna Noise Temperature: 49 K at 20° elevation; 47 K at 30° elevation
Polarization: Linear or circular
First Sidelobe: -20 dB typ.
Cross-Polarization Isolation: Greater than 30 dB on-axis with linear polarization
VSWR: 1.3:1 max.
Feed Interface: CPR-229F

Ku-Band Receive Specifications

Receive Frequency Range: 10.70–12.75 GHz
Midband Gain: 44.5 dBi ±0.5 dB
3 dB Beamwidth: 0.9°
Antenna Noise Temperature: 38 K at 20° elevation; 35 K at 30° elevation
Polarization: Single or dual linear
First Sidelobe: -20 dB typ.
Cross-Polarization Isolation: Greater than 30 dB on-axis
VSWR: 1.3:1 max.
Feed Interface: Rectangular WR-75 or WC-75

Environmental Specifications

Operational Wind Speed: 45 mph (72 km/h)
Survival Wind Speed: 125 mph (201 km/h) in any position
Operating Temperature: -40°F to +140°F (-40°C to +60°C)
Survival Temperature: -50°F to +160°F (-46°C to +71°C)
Atmospheric Resistance: Designed for salt, pollutants and contaminants encountered in coastal and industrial environments
Solar Radiation: 360 BTU/h/ft² (1,000 kcal/h/m²)
Standards Compliance: FCC and ITU-R S.580 sidelobe requirements; Intelsat A, B and C and Eutelsat requirements

Key Features:

• 1.8 m commercial-grade receive-only VSAT antenna

• Available in C-band or Ku-band configurations

• C-band coverage from 3.625–4.200 GHz

• Ku-band coverage from 10.70–12.75 GHz

• 35.5 dBi C-band midband gain

• 44.5 dBi Ku-band midband gain

• Precision one-piece offset SMC reflector

• High antenna efficiency

• Excellent rejection of noise and microwave interference

• Linear or circular C-band polarization

• Single- or dual-linear Ku-band polarization

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

• Galvanized steel elevation-over-azimuth pedestal

• Continuous fine elevation adjustment from 5°–90°

• Continuous 360° azimuth adjustment

• 125 mph survival wind rating

• Suitable for communications, data transfer and broadcast applications

• Optional manual or remotely switchable feeds

• Optional antenna control system with tracking

• Optional reflector and feed deicing systems

• Optional integrated LNA or LNB systems

• Optional environmental hub configurations

• Optional X-band low-PIM reflector and feed

• Optional high-wind and low-temperature configurations

• Optional turnkey installation and testing