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3.7m VSAT dish Description


3.7-meter C/Ku earth station antenna, which uses a shaped parabolic reflector, provides high gain and exceptional pattern characteristics as well as low VSWR. A dual shaped shifted focal axis reflector is so designed for the antenna that the system gets higher gain and lower sidelobes, which meet the requirements of INTELSAT IESS and CCIR Rec.580-4, INMARSAT, ASIASAT, APT and CHINASAT, etc. The main reflector adopts stretch-formed aluminium panels with high accuracy riveted with rings and ribs on the precise mould, ensuring the antenna structure to be simple, reliable and convenient for installation.

3.7m VSAT dish Features


Linear or Circular Polarized feed system as option

Stretch-formed and self-aligning aluminum reflector

Excellent electrical performance

Antenna structure is reliable and surface is well in anti-rust

Offer optional frequency, C-band and ku-band

Responsive customer service support

Fixed or motorizable pedestals

3.7m VSAT dish Technical specifications


3.7m VSAT dish ELECTRICAL SPECIFICATION

Diameter

3.7M

Operating Frequency, GHz

C-Band

Ku-Band

Receive

Transmit

Receive

Transmit

3.6254.2

5.856.425

10.9512.75

14.014.5

Gain, Mid-band, dBi

41.94

45.52

51.7

52.63

Antenna Noise Temperature, 2-port feed

10° Elevation

20° Elevation

40° Elevation


36°K

30°K

25°K



50°K

44°K

38°K


Feed Insertion Loss, dB

0.2

0.2

0.25

0.25

Isolation, Tx to Rx, dB

85

Polarization

Linear/ Circular

Linear

Radiation Pattern:First Sidelobe

CCIR.580-4

Feed Interface

CPR-229G

CPR-137G

WR-75

WR-75

Tx. Power Capability, KW


5


2

XPD (on Axis), dB

35

33

1.25

35

33

1.25

35

33

1.25

35

33

1.25

XPD across 1Db Beam Width, dB

VSWR

-3dB Beam Width

1.31°

0.87°

0.42°

0.38°


3.7m VSAT dish MECHANICAL SPECIFICATION

Azimuth

±85° (2 segments)

Elevation

90°(Continuous)

Finishes

 Reflector Surface

 Pedestal & Back Structure


Aluminum panels with high-diffusing white paint

Hot dip Galvanized Zinc

Surface Accuracy (RMS)

≤ 0.35mm


3.7m VSAT dish ENVIRONMENTAL SPECIFICATION

Operational Wind

72km/h Gusting to97km/h

Survival Wind

200km/h

Relative Humidity

100%

Seismic (Survival)

0.3g (H),0.15g(V)

Solar Radiation

1135Kcal/ h/ m2

Temperature

-40°C +60°C


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