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Patriot 18.3 Meter
Earth Station

Printable Spec Sheet

Band C-band
Transmit Frequency Range 5.85 - 6.425 GHz
   (other bands available)
Midband Gain 59.9 dBi
Receive Frequency Range 3.625 - 4.2 GHz
   (other bands available)
Midband Gain 56.0 dBi
Noise Temperature 41 K typ @ 10°EL
Ports / Polarization 4 port circular or 4 port linear
(2 port & rx-only available) 4 port switchable linear/circular
Polarization Rotation ±95° min (linear antennas only)
Polarization Isolation 30.7 dB min (4 port circular feed)
   within 1 dB beamwidth
Port to Port Isolation Tx to Rx 85 dB min
  Tx to Tx 23 dB min
  Rx to Rx 20 dB min
  (4 port circular feed)
VSWR Tx 1.25:1
  Rx 1.25:1
  (4 port circular feed)
Power Handling Capacity 5 kW
Feed Flanges Tx CPR 137G
  Rx CPR 229G
  (4 port circular feed)
Typical RF Specifications  
Geometry High efficiency dual shaped cassegrain design
Feed Options Wideband corrugated horns for various frequencies
Optimization Design to customer requirements-optimized for G/T or TX gain
Radiation Pattern Complies with FCC 25.209 ITU-RS 580
Mechanical Specifications  
Antenna Diameter 18.3 m
Antenna Type Dual Shape Cassegrain
Elevation Travel 0 - 90°
Azimuth Travel 120° Standard, Full-Motion Option Available
Drive System: Elevation Mechanical screw jack standard
Drive System: Azimuth Mechanical screw jack standard, Full Motion Gear Drive Available
Mount Type Tube Pedestal
Mount material and finish Steel blasted and primed, epoxy paint system.  Hot dip galvanized option 
Structure material and finish Steel hot dip galvanized
Reflector material and finish Aluminum with high diffusive white finish on reflective surface
Environmental Specifications  
Operational Winds 45 mph; gusts to 60 mph  
Survival Winds 125 mph @ 58°F 
Ambient Temperature Operational: +5° to +122°F
  Survival: -22° to +140°F 
Rain  Up to 4 in/h
Relative Humidity 0% to 100% with condensation
Solar Radiation 360 BTU/h/ft² 
Radial Ice (Survival) 1 in (2.5 cm) all surfaces or 1/2 in (1.3 cm) all surfaces w/80 mph (130 km/h) gusts
Shock and Vibration As occurred during shipment
Corrosive Atmosphere As encountered in costal regions and/or heavily industrialized areas
Seismic (Survival) 0.3 G’s Horizontal, 1.0 G’s vertical
 

 

Specifications and Weights & Dims subject to change without notice

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