75cm Ku-Band Elliptical – Type 755

Global Skyware

75cm Ku-Band Elliptical – Type 755

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  • ISO 9001:2008 Certificate of Registration
  • One-piece precision elliptical offset thermoset-molded reflec- tor.
  • Single bolt fine elevation adjust- ment.
  • Extruded aluminum feed sup- port arm.
  • Includes Rx/Tx feed assembly.
  • Available with Co-Pol or Cross- Pol feed.

  • Description
  • Technical Specifications
  • Support Documents

Overview

The Skyware Global 75cm Rx/Tx Ku-Band Elliptical Antenna is a rugged commercial grade product suitable for the most demanding applications.

The reflector is thermoset-molded for strength and surface accuracy. Molded into the rear of the reflector is a network of support ribs which strengthens the antenna and sustains the parabolic shape necessary for transmit performance.

The heavy-gauge galvanized steel Az/El/Skew mount provides rigid support to the reflector.

The mount secures the antenna to any 60 mm (2.38”) O.D. mast and prevents slippage in high winds.

This mount allows for precise alignment of the elliptical reflector to the geostationary arc.

A special powder paint process offers excellent protection from weatherrelated corrosion.

Details

  • ISO 9001:2008 Certificate of Registration
  • One-piece precision elliptical offset thermoset-molded reflec- tor.
  • Single bolt fine elevation adjust- ment.
  • Extruded aluminum feed sup- port arm.
  • Pre-assembled Az/El/Skew mount for optimum alignment capability.
  • Plated hardware for maximum corrosion resistance.
  • Includes Rx/Tx feed assembly.
  • Available with Co-Pol or Cross- Pol feed.
  • All materials comply with EU Directive No. 2002/95/EC (RoHS).
  • Designed for typical 1W and 2W Ku-band Block-Up Con- verters (BUCs)
  • * 2 kg or 4.5 lb or max. weight for RF electronics (BUC and LNB)

RF Performance
Effective Aperture 75 cm equivalent (30 in) (62 cm x 89 cm Elliptical Aperture)
Operating Frequency
TX 13.75-14.50GHz
RX 10.70-12.75GHz
  
Polarization Linear, Co or Cross-Polarized
  
Gain (±0.2 dB)
TX 39.3 dBi @ 14.3GHz
RX 37.8 dBi @ 12.0GHz
3 dB Beamwidth
TX 1.6° @ 14.3GHz
RX 2.0° @ 12.0GHz
Sidelobe Envelope (Tx, Co-Pol dBi)
1.8< q <20° 29-25 log q dBi
20°< q <26.3° -3.5dBi
26.3°< q <48° 32-25 log q dBi
48°< q <180° -10
  
Antenna Cross-Polarization 30 db on Axis
  
Antenna Noise Temperature 1
30° EL 50K
VSWR
TX 1.3:1
RX 1.5:1
Isolation (Port to Port)
TX 80db
RX 35db
Feed Interface
TX WR75 Flat Flange RX WR75 Flat Flange
Mechanical Performance
Reflector Material Glass Fiber Reinforced Polyester
Antenna Optics One-Peice Offset Feed Prime Focus
Mount Type Three Axis, Skew, Elevation and Azimuth
Polarization (Skew) Adjustment Range ±90° Continuous
Elevation Adjustment Range 5°-90° Continuous Fine Adjustment
Azimuth Adjustment Range 360° Continuous
Mast Pipe Interface 60 mm
(2.38 in) Diameter
Enviromental Performance
Wind Loading
Operational 50 mph (80 km/h)
Functional Survival 80 mph (128 km/h)
Ultimate Survival 125 mph (200 km/h)
  
Operational Temperature -40°C to +60°C
Survival Temperature -50°C to +80°C
Humidity 0 to 100% (Condensing)
Atmosphere Standard Hardware 500 Hrs SST Requirements (ASTM B-117)
Solar Radiation 360 BTU/h/ft2
Shock and Vibration As Encountered during Shipping and handling
(All specifications typical)

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