Skyware Global Antenna 1.8m Tx/Rx Ku-Band Type 183 Class III

Skyware Global Antenna 1.8m Tx/Rx Ku-Band Type 183 Class III

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TYPE 183 1.8M CLASS III TXRX ANTENNA

Polarization: Linear Cross Pol, Tx Operating Frequency: 13.75 – 14.5 GHz, Rx Operating Frequency: 10.95 – 12.75 GHz, Includes: Fiberglass reflector, az/el mount with fine azimuth, and elevation adjustment, feed support with transmit feed horn, Orthomode Transducer (OMT) and Transmit-Reject Filter (TRF) assembly, 4.5″ OD ( 114mm) Mast Pipe interface, Intelsat Approved. (62-1835611)

The Skyware Global Type 183 1.8 m Class III Tx/Rx 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 not only strengthens the antenna, but also helps to sustain the critical parabolic shape necessary for transmit performance.

The Az/El mount is constructed from heavy-gauge steel to provide a rigid support to the reflector and feed support arm. Heavy-duty lockdown bolts secure the mount to any 4.50″ (114 mm) O.D. mast and prevent slippage in high winds. Hot-dip galvanizing is standard for maximum environmental protection.

TYPE 183 FEATURES

  • One-piece precision offset thermoset-molded reflector.
  • Fine azimuth and elevation adjustments.
  • Galvanized feed support arms and alignment struts.
  • Factory pre-assembled mount.
  • Galvanized and stainless hardware for maximum corrosion resistance.
  • Heavy-duty Class III mount for 25 lb (11 kg) RF electronics (LNB & BUC).
RF Performance
Effective Aperture 1.8 m (71 in)
Operating Frequency
Transmit
Receive
13.75-14.50 GHz
10.70-12.75 GHz
Polarization Linear, Orthogonal
Gain (±.2 dBi)
Transmit
Receive
46.8 dBi @ 14.25 GHz
45.3 dBi @ 11.95 GHz
3 dB Beamwidth
Transmit
Receive
0.79° @ 14.3 GHz
0.99° @ 12.0 GHz
Sidelobe Envelope (Tx, Co-Pol dBi)
1°<θ<20°
20°<θ<26.3°
26.3°<θ<48°
48°<θ<180°
29-25 Log θ
-3.5
32 – 25 Log θ
-10
Antenna Cross-Polarization 30 dB (On Axis)
26 dB in .5 dB Contour
Antenna Noise Temperature
10° El
20° El
30° EL
43°K
28°K
23°K
VSWR
Transmit
Receive
1.3:1
1.5:1
Isolation
Transmit
Receive
110 dB
35 dB
Feed Interface
Transmit
Receive
WR75 Cover Flange (UBR120)
WR75 Cover Flange (UBR120)
Mechanical Performance
Reflector Material Glass Fiber Reinforced Polyester
Antenna Optics One-Piece Offset Feed Prime Focus
Mount Type Elevation over Azimuth
Elevation Adjustment Range 10°-90° Continuous Fine Adjustment
Azimuth Adjustment Range 360° Continuous; ± 10° Fine Adjustment
Feed Support Rectangular Section with Alignment Legs
Mast Pipe Interface 4.50 in (114 mm) Diameter
Environmental Performance
Wind Loading
Operational
Survival
50 mi/h (80 km/h)
125 mi/h (200 km/h)
Temperature -50°C to 80°C
Humidity 0 to 100% (Condensing)
Atmosphere Salt, Pollutants and Contaminants as Encountered in
Coastal and Industrial Areas
Solar Radiation 360 BTU/h/ft²
Shock and Vibration As Encountered During Shipping and Handling

Feed Configuration

Cross-pol, Co-pol

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