CPI Series 1374/1375 3.7 M C- or Ku-Band Receive-Only Antenna

CPI Series 1374/1375 3.7 m C- or Ku-Band Receive-Only Antenna

The CPI Series 1374/1375 is a high-gain 3.7 m receive-only satellite antenna available for C-band or Ku-band operation. Its eight-segment SMC reflector delivers 40.9 dBi C-band or 50.7 dBi Ku-band midband gain, the highest performance among these three antenna sizes. Fixed-Az/El and declination-corrected polar configurations support demanding broadcast, telecommunications and data-reception networks.

Antenna Diameter: 3.7 m (12 ft.)
Model Series: 1374 and 1375
Available Configurations: C-band or Ku-band receive-only
C-Band Receive Frequency Range: 3.625–4.200 GHz
Ku-Band Receive Frequency Range: 10.95–12.75 GHz
C-Band Midband Gain: 40.9 dBi ±0.2 dB
Ku-Band Midband Gain: 50.7 dBi ±0.2 dB
C-Band 3 dB Beamwidth: 1.45°
Ku-Band 3 dB Beamwidth: 0.5°
C-Band Noise Temperature: 25 K at 20° elevation; 23 K at 30° elevation
Ku-Band Noise Temperature: 23 K at 20° elevation; 22 K at 30° elevation
Cross-Polarization Isolation: Greater than 30 dB on-axis with linear polarization
First Sidelobe: -20 dB typ.
VSWR: 1.43:1 max.
Insertion Loss: 0.2 dB max.
C-Band Feed Interface: CPR-229F
Ku-Band Feed Interface: WR-75
Reflector Material: Eight-segment glass-fiber-reinforced polyester SMC
Antenna Optics: Prime-focus axisymmetric
F/D Ratio: 0.30
Feed Support: Quad feed support
Mast Pipe Interface: 6 in. Schedule 80 pipe, 6.62 in. OD (16.83 cm)
Elevation Adjustment Range: 10°–70° continuous fine adjustment; 90° option available
Azimuth Adjustment Range: 360° continuous
Polar Mount Coverage: Any 90° segment of arc
Series 1375 Polar Range: 90° arc coverage with 36 in. actuator
Shipping Weight: 575 lb. (259 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: -50°F to +160°F (-46°C to +71°C)
Operational Rain Rate: 0.5 in./h
Atmospheric Resistance: Suitable for coastal and industrial environments
Solar Radiation: 360 BTU/h/ft²

Key Features:

• 3.7 m C- or Ku-band receive-only antenna

• 40.9 dBi C-band midband gain

• 50.7 dBi Ku-band midband gain

• Highest gain among the Series 1304–1375 antenna sizes

• Eight-segment precision SMC reflector

• Prime-focus axisymmetric optics

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

• Quad feed support

• Continuous fine elevation adjustment

• 360° continuous azimuth adjustment

• Declination-corrected polar configuration available

• Optional 90° elevation range

• 125 mph survival wind rating

• Designed for high-performance fixed satellite reception