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

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 FEATURESOne-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 Aperture1.8 m (71 in)
Operating Frequency
    Transmit
    Receive

13.75-14.50 GHz
10.70-12.75 GHz
PolarizationLinear, 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-Polarization30 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 MaterialGlass Fiber Reinforced Polyester
Antenna OpticsOne-Piece Offset Feed Prime Focus
Mount TypeElevation over Azimuth
Elevation Adjustment Range10°-90° Continuous Fine Adjustment
Azimuth Adjustment Range360° Continuous; ± 10° Fine Adjustment
Feed SupportRectangular Section with Alignment Legs
Mast Pipe Interface4.50 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
Humidity0 to 100% (Condensing)
AtmosphereSalt, Pollutants and Contaminants as Encountered in 
Coastal and Industrial Areas
Solar Radiation360 BTU/h/ft²
Shock and VibrationAs Encountered During Shipping and Handling

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

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