Global Skyware 1.8m Receiver Transmitter (RxTx) Class IIIH Antenna System

The 1.8m Receiver Transmittter (RxTx) Class III High Wind Antenna System is designed to withstand winds of up to 150mph.

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 its critical parabolic shape.

                                    C BAND                               KU BAND 

Effective Aperture . . . . . . . . . . . . . . . . . . . . . . . . . .1.8m (71in)
Operating Frequency Tx . . . . . 5.850 - 6.725 GHz . . . . 13.75-14.50 GHz
Rx . . . . . 3.400 - 4.200 GHz . . . . 10.70-12.75 GHz
Polarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Linear Orthogonal
Gain (±0.2 dB) Tx . . . . . 39.3 dBi @ 6.1 GHz . 46.7 dBi @ 14.3 GHz
Rx . . . . . 35.4 dBi @ 3.9 GHz . .45.0 dBi @ 11.7 GHz
3dB Beamwidth Tx . . . . . 2.0° @ 6.1 GHz . . . . . .0.8° @ 14.3 GHz
Rx . . . . . 3.0° @ 3.9 GHz . . . . . .1.1° @ 11.2 GHz
Sidelobe Envelope (Tx, Co-Pol dB)
Mainbeam < Θ < 20° . . . . . . . . . 29 - 25 Log Θ dB
20° < Θ 26.3° . . . . . . . . . . . . . . . . . . -3.5 dB
26.3° < Θ < 48° . . . . . . . . . . . . . 32-25 Log Θ dB
48° < Θ < 180° . . . . . . . . . . . . . . . . . . -10 dB
Antenna Cross-Polarization (within 1dB contour)
Tx . . . . . . . 30dB (on axis) . . . . . . . . . 29 dB
Rx . . . . . . . 30dB (on axis) . . . . . . . . . 21 dB
Antenna Noise Temperature
10° Elev . . . . . . . 41° K . . . . . . . . . . . . 43° K
20° Elev . . . . . . . 36° K . . . . . . . . . . . . 28° K
30° Elev . . . . . . . 33° K . . . . . . . . . . . . 23° K
VSWR Tx . . . . . . . . . . 1.3:1 . . . . . . . . . . . . .1.3:1
Rx . . . . . . . . . . 1.5:1 . . . . . . . . . . . . .1.5:1
Isolation (Port to Port) Tx . . . . . . . . . . 60 dB . . . . . . . . . . . . 90 dB
Rx . . . . . . . . . . 60 dB . . . . . . . . . . . . 40 dB
Feed Interface Tx . . . . . Type N or CPR-137 . . . WR75 Flat Flange
Rx . . . . . . . . CPR-137 . . . . . WR75 Flat Flange

Mechanical Performance 

Reflector Material . . . . . . . . . . . . . . . . . . . . . . . . . .Glass Fiber Reinforced Polyester
Antenna Optics . . . . . . . . . . . . . . . . . . . . . . . . . . One-Piece Offset Feed Prime Focus
Mount Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elevation over Azimuth
Maximum Radio Weight . . . . . . . . . . . . . . . . . . . . . . 11 kg or 25 lbs for RF Electronics
Elevation Adjustment Range . . . . . . . . . . . . . . . . . . 10° - 90° Continuous Fine Adjustment
Azimuth Adjustment Range . . . . . . . . . . . . . . . . . 360° Continuous, ±10° Fine Adjustment
Mast Pipe Size. . . . . . . . . . . . . . . . . . . . . . . . . 5” or 5.56” (127mm or 141mm) diam.
Wind Loading . . . . . . . . . . . . . . . Operational . . . . . . . . . . . . . . 105 km/h (65 mph)
Survival . . . . . . . . . . . . . . . 241 km/h (150 mph)
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -50°C to +80°C
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 100% (Condensing)
Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard Hardware Meets 500 Hour
Salt Spray Test Requirements (ASTM B-117)
Solar Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 BTU/h/ft2
Shock and Vibration . . . . . . . . . . . . . . . . . .As Encountered During Shipping and Handling