CPI Series 2120 1.2 M Ku-Band Rx/Tx High-Wind Antenna

CPI Series 2120 1.2 m Ku-Band Rx/Tx High-Wind Antenna

The CPI Series 2120 is a reinforced 1.2 m Ku-band Rx/Tx antenna engineered for high-wind satellite communications sites. It provides 41.4 dBi receive gain and 43.3 dBi transmit gain, remains operational in winds up to 65 mph and requires no repointing after 90 mph winds. The antenna withstands 125 mph without permanent damage and 150 mph without structural breakaway.

Antenna Diameter: 1.2 m (47 in.)
Receive Frequency Range: 10.70–12.75 GHz
Transmit Frequency Range: 13.75–14.50 GHz
Receive Midband Gain: 41.4 dBi ±0.2 dB
Transmit Midband Gain: 43.3 dBi ±0.2 dB
Antenna Noise Temperature: 57 K at 20° elevation; 56 K at 30° elevation
Transmit VSWR: 1.3:1 max.
Receive VSWR: 1.5:1 max.
Reflector Material: Glass-fiber-reinforced polyester SMC
Reflector Construction: Single-piece reflector
Antenna Optics: Prime-focus offset
Mast Pipe Interface: 2.5 in. Schedule 40 pipe, 2.88 in. OD (73.2 mm); compatible range of 72–74 mm OD
Elevation Adjustment Range: 5°–90° continuous fine adjustment
Azimuth Adjustment Range: 360° continuous coarse adjustment with ±15° fine adjustment
Polarization Adjustment Range: ±90° continuous coarse adjustment
Maximum Transmitter Weight: 12 lb.
Feed-Support Tailpiece: Available as required
Shipping Weight: 90 lb. (41 kg)

Sidelobe Envelope

100λ/D ≤ θ ≤ 20°: 29 - 25 log θ dBi
20° < θ ≤ 26.3°: -3.5 dBi
26.3° < θ ≤ 48°: 32 - 25 log θ dBi
θ > 48°: -10 dBi averaged

High-Wind Performance

Operational Wind Speed: 65 mph (104 km/h), with 0.5 dB loss at 14.25 GHz
Survival Wind Speed Without Repointing: 90 mph (144 km/h)
Survival Without Permanent Damage: 125 mph (201 km/h)
Survival Without Structural Breakaway: 150 mph (240 km/h)

Environmental Specifications

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
Survival Rain Rate: 2 in./h
Ice Survival: 0.5 in. radial ice
Atmospheric Resistance: Designed for salt, pollutants and contaminants encountered in coastal and industrial environments
Solar Radiation: 360 BTU/h/ft²

Key Features:

• 1.2 m high-wind Ku-band Rx/Tx antenna

• Receive coverage from 10.70–12.75 GHz

• Transmit coverage from 13.75–14.50 GHz

• 41.4 dBi receive midband gain

• 43.3 dBi transmit midband gain

• Operational in winds up to 65 mph

• No repointing required after 90 mph winds

• No permanent damage at 125 mph

• No structural breakaway at 150 mph

• Single-piece glass-fiber-reinforced SMC reflector

• Prime-focus offset antenna optics

• Continuous elevation adjustment from 5°–90°

• 360° azimuth adjustment with ±15° fine tuning

• ±90° polarization adjustment

• Supports transmit equipment weighing up to 12 lb.

• Optional feed-support tailpiece

• Compact 90 lb. shipping weight

• Designed for exposed coastal, industrial and high-wind locations