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Antennas and open-frame structures

   Radio telescope

   Paraboloid dish

Total moment

Azimuth angle, 135o

Altitude moment

Azimuth moment

Effect of boundary

layer profile

              0               20             40                60              80     90

Zenith angle, degrees

0.10

0.08

0.06

0.04

0.02

0

CM

Zenith angle

Focus

Azimuth angle

Wind

PLAN VIEW

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