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7.3M EARTH STATION ANTENNA

Performance Strength

*C,Ku, multi band Available , meeting FCC and ITU-RS-580 requirements

*High quality aluminum reflector panels and galvanized steel backup structure

*Self-aligning aluminum antenna reflector-no field alignment

*Galvanized steel elevation over azimuth pedestal

*Fixed foundation and Non penetrating foundation optional for wider choice

*Survives 125 mph winds in any position and High wind configuration optional


Description


Starwin 7.3m antenna delivers exceptional high performance for transmit/receive application in C ,Ku, ka, X band in Tx/Rx 2 ports, 4 ports or Rx 1 port with high gain ,low noise and low microwave interference.


Starwin 7.3m antenna offers a fine reflector design with a stretch formed double contoured panels, strong back struts and hub fore ease of field alignment. The standard designed azimuth over elevation pedestal provides a cost-effective solution for ground or roof installation with high stiffness and stability , full orbital arc coverage and fine drive performance, and ensures the pointing and tracking accuracy .


The electrical performance is compliant with FCC and ITU-RS-580 sidelobe specifications and Intelsat ,Eutelsat, INMARSAT, ASIASAT,APT and CHINASAT, etc requirement.


Electrical, Mechanical, Environmental Specification

Type

SW73C

SW73K

Operating Frequency, GHz

C band

Ku band

Receive

Transmit

Receive

Transmit

3.4~4.2

5.85~6.725

10.95~12.75

13.75~14.5

Gain, Mid-band, dBi

48

51.6

57.5

58.9

Polarization

Linear /circular

Linear

XPD(on Axis), dB

35

35

35

35

XPD across 1dB Beam Width, dB

33

33

33

33

Axial Ratio

(Circular-Polarized)

2-Port Feed

4-Port Feed

1.30/1.06

1.09/1.06



VSWR

1.25

1.25

1.25

1.25

Antenna Noise Temperature 2-port feed

10° Elevation

30° Elevation

50° Elevation


43°K

32°K

29°K



66°K

52°K

47°K


Typical G/T(EL>10°,2-port)

29.3 dB/K

(30ºLNA)


36.1 dB/K

(70ºLNA)


-3 dB Beam Width, Mid-band

0.72º

0.47º

0.23º

0.20º

Tx. Power Capability, KW


5


2

Feed Interface

CPR—229G

CPR—137G

WR-75

WR-75

Feed Insertion Loss, dB

0.2

0.2

0.25

0.2

Isolation, Tx to Rx, dB

90

85

Side lobe

CCIR580-4


Key features

*Meets or exceeds CCIR 580 and INTELSAT Requirements

*High G/T, excellent pattern characteristic

* Precision compression molded offset antenna

*CP/LP switchable feed

* Hot dip zinc steel pedestal, hub & back struts

*Galvanized stainless steel fasteners

* Foundation hardware kit provided

* Package suitable for air, ocean land transportation

Mechanical Specification

Antenna Diameter

7.3m

Antenna Type

Cass grain

Surface Accuracy(RMS)

≤0.5mm

Antenna Pointing Range

Azimuth

Elevation

Polarization

±85°, 0°-360° continuous optional

0°~90°(Continuous)

±90°(Continuous)

Drive Mode

Manual or Motorized

Motor Drive System

Azimuth Travel Rate

Elevation Travel Rate

Polarization Travel Rate

0.11°/S(0.03°/S)

0.17°/S(0.04°/S) 1 ° / s

Antenna reflector Material

Aluminum Alloy

Finish of steel parts

Hot dipped Zinc

Environmental Specification

Operational Wind

72km/h gusting to 97km/h

Survival Wind

216km/h

Temperature

-40°~+60°

Relative Humidity

100%

Solar Radiation

1135Kcal/h/m²

Seismic(Survival)

0.3g(H), 0.15g(V)

Ice Loading

13mm Operational; 25mm Survival



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Antenna Accessory

*Limit Switches

*Foundation hardware Kit

*Grounding Kits Cable –Mounting kits

*Cable mounting kits

*ODU Support Kits

*Factory Feed System Testing and Documentation

*Ocean /Air/land Transport Packing


Options

* L, S, C, X, Ku and DBS-band feed configurations

*800MHz bandwidth is available

*Two or Four ports -Tx/Rx port in linear or circular polarized feeds

*motorization kits

*Feed blower or deicing with automatic controls

*Lightning Rod Kits

*Non-penetrating mount

* Antenna control & tracking system for step track, program track, inclined orbit track

* Integrated LNB or LNA systems

*HPAs, converters and M&C systems

* Integrated LNB or LNA systems

*HPAs, converters and M&C systems

* Turnkey installation & testing


Technical specifications of DBS band antenna (7,3m)


PARAMETER

Specification data

Notes

ELECTRICAL



Tx frequency band (GHz)

17,300- 18,400


Rx frequency band (GHz)

10,700- 12,750


Tx gain (dBi)

>59,5

At mid-band

Rx gain (dBi)

>56,5

At mid-band

Feed assembly

Linear4 portfeed


Off axis emissions

ITU RS.524-5


G/T(dB/K)

>36

At 20° elevation with 65K LNB / 11,725GHz

Crosspol isolation

> 35 dB Tx & Rx


Sidelobes

Meets Intelsat, FCC 25.209, ITU RS.580-5


Port to port isolation (min)

Tx to Rx 85dB RxtoTx70dB


Antenna noise temp

10° elevation 60K 20° elevation 50K 40° elevation 45K


Pattern beamwidth (deg)

Tx0,18 Rx 0,23

-3dB at mid-band

VSWR

Better than 1.3:1


Power handling per Tx port

IKWattsmin


Feed interface

Tx WR-62



Rx WR-75





MECHANICAL



Antenna type

Cassegrain with corrugated horn


Antenna travel

Elevation 0° - 90°

Continuous


Azimuth 180°

Max 2 segments


Polarization ±90°


Mount type

Elevation over azimuth


Antenna travel rate (min

Az 0,06° /sec


values)

El 0,03° /sec Pol 1,5°/sec



• Feed rainblower

• Aircraft warning lights

• Lighting kit

• Hub closeout kit

• Ladder & platform

• Dehydrator

• Tx couplers

Automatic

ENVIRONMENTAL



Operational temperature

-15° to +50° C


Survival temperature

-30° to +60° C


Relative humidity

0 to 100%


Rain

10cm/h


Snow

5mm/h


 

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