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3.7m c band dish Description


3.7m earth station antenna uses a shaped parabolic reflector which can provides high gain, exceptional pattern characteristics and low VSWR. It is designed with a dual shaped shifted focal axis reflector so that the system can get higher gain and lower sidelobe, which is according to the standard of of INTELSAT IESS and CCIR Rec.580-4, INMARSAT, ASIASAT, APT and CHINASAT, etc. Its main reflector is stretch-formed aluminum panels with high accuracy, which is riveted with rings and ribs on the precise mould so that the antenna has simple,reliable structure and convenient assembly way.

3.7m c band dish Features


Optional feed system, linear or circular polarization

Good corrosion resistance and structural stability 

Superior electrical performance

We have C-band and Ku-band frequency as option

Customer service support is responsive

Alternative pedestals, fixed or motorized

Aluminum reflector formed with stretch way, using self-aligning

Structural steel with hot-dip galvanized craft

3.7m c band dish Technical specifications


3.7m c band 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

Feed Insertion Loss, dB

0.2

0.2

0.25

0.25

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 Interface

CPR-229G

CPR-137G

WR-75

WR-75

Polarization

Linear/ Circular

Linear

Radiation Pattern:First Sidelobe

CCIR.580-4

Tx. Power Capability, KW


5


2

-3dB Beam Width

1.31°

0.87°

0.42°

0.38°

Isolation, Tx to Rx, dB

85

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


3.7m c band dish ENVIRONMENTAL SPECIFICATION

Operational Wind

72km/h Gusting to97km/h

Survival Wind

200km/h

Relative Humidity

100%

Solar Radiation

1135Kcal/ h/ m2

Temperature

-40°C +60°C

Seismic (Survival)

0.3g (H),0.15g(V)


3.7m c band dish MECHANICAL SPECIFICATION

Azimuth

±85° (2 segments)

Elevation

90°(Continuous)

Surface Accuracy (RMS)

≤ 0.35mm

Finishes

 Reflector Surface

 Pedestal & Back Structure


Aluminum panels with high-diffusing white paint

Hot dip Galvanized Zinc


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