Challenger 7.5m C, Ku, X-Band Receive-Only Earth Station
The Challenger 7.5m Receive-Only Earth Station delivers high-gain multiband performance with precision-aligned reflector panels and rugged construction. Designed for critical teleport, broadcast, and ground station operations, it supports C, Ku, and X-band frequencies with low noise temperatures and high polarization isolation.
This system features a corrosion-resistant aluminum reflector with a high-diffusive white powder coat finish, mounted on a galvanized steel pedestal with mechanical screw jacks for Az/El adjustment. The reflector is assembled with precision stretch-formed panels, ensuring consistent surface accuracy. A motorized feed system is available for automated polarization rotation.
Built to withstand extreme environmental conditions, including 125 mph wind survival and full 360° polarization rotation, the Challenger 7.5m Earth Station is a trusted platform for global RX-only satellite communications.
Key Features
- 7.5m precision stretch-formed reflector for superior gain and beam performance
- Supports C-Band, Ku-Band, and X-Band receive-only operation
- 1- or 2-port linear or circular feed options per band
- Factory-assembled mount reduces on-site installation time
- Hot-dip galvanized steel pedestal with mechanical screw jacks
- High corrosion resistance with powder-coated aluminum reflector
- 125 mph wind survival rating; high wind kit available
- 360° continuous polarization rotation
- Low noise temperature across all bands
- Made in the USA with robust environmental tolerance
Technical Specifications
- Reflector Size: 7.5 meters
- Mount Type: Tube pedestal, mechanical screw jack for Az/El
- Structure Material: Hot dip galvanized steel
- Reflector Finish: Powder-coated aluminum, high-diffusive white
- Azimuth Travel: ±60° (120° total)
- Elevation Travel: 0° to 90°
- Polarization Rotation: 360° continuous
- Frequency Ranges:
- Ku-Band: 10.95–12.75 GHz
- C-Band: 3.625–4.2 GHz
- X-Band: 7.75–7.75 GHz
- Midband Gain:
- Ku-Band: 57 dBi
- C-Band: 47.9 dBi
- X-Band: 53.5 dBi
- Noise Temperature @10° Elevation:
- Ku-Band: 50K
- C-Band: 45K
- X-Band: 48K
- VSWR (Rx): 1.4:1 across all bands
- Polarization Isolation: 30 dB (Ku, C), 25 dB (X)
- Feed Flanges:
- Ku-Band: WR75
- C-Band: CPR229G
- X-Band: CPR112G
- Operational Wind: 45 mph, gusts to 60 mph
- Survival Wind (Stowed): 125 mph
- Temperature Range: -15°C to 50°C operational, -30°C to 60°C survival
- Humidity: 0–100% with condensation
- Rain Load: Up to 4 in/hr (10 cm/hr)
- Ice Load: 1 in radial ice, survival with 80 mph gusts
