3.5 Meter VSAT Antenna
• Each integral spun-aluminum reflector is constructed for optimum reliability and measured for RMS surface accuracy
• 3.5m one-piece precision automated spinning
• Bonded and riveted torsion box for rigidity
• Heavy mounting ring for strength
• Advanced dual-reflector Gregorian optics
• Subreflector closed loop positioning or precise pointing accuracy
• High velocity feed window blower
Operating frequency band* Ka-Band receive, GHz Ka-Band transmit, GHz |
19.7–20.2. 29.5–30.0 |
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Gain, with CP4 combiner (dBi, ±0.2 dB) Rx Freq.GHz Rx Gain Tx Freq., GHz Tx Gain 19.70 . 55.0 29.50 . 58.3 19.95 55.1 29.75 58.3 20.20 55.2 30.00 58.4 21.20 56.0 43.5 62.0 45.5 63.0
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Polarization |
Circular. |
.VAR 1.09. |
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Polarization discrimination, dB . |
Linear . |
35 |
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Feed system, 2, 3 or 4 port circular or linear Corrugated high efficiency horn 400 Watts CW transmit power @ WC interface 85 dB TX/RX isolation VSWR ≤1.30:1 at TX/RX combiner ports feed only 1.22 |
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Antenna noise temperature, under clear sky conditions, at 20°C, at RX 4 port combiner flange. Elevation Band, K 10° 106 30° 74 50° 69 |
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Pattern envelope Compliant to ITU-R S.580, U.S. FCC 47 CFR 25.209 |
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Mechanical Specifications |
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Optical design |
Dual-reflector, symmetrical axis |
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Reflector material |
Precision spinning, aluminum |
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Reflector segments |
One piece |
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Mount |
Hot dip galvanized pedestal |
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Subreflector actuators |
Small AC servo drives |
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Environmental Specifications |
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Operating Temperature, F (C) |
-40° to 125° (-40° to 52°) |
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Seismic, 1 G vertical and horizontal acceleration. Richter 8.3 or Grade 11 on the modified Mercalli Scale |
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Wind loading Survival, mph (km/h) |
125 (200) in any position of operation |
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Operational, mph |
50 with TX loss of <0.5 dB |