First Use: Antenna Setup - Primaluce SPIDER230 Installation And User Manual

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First use: antenna setup

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All the elements that make up the Spider230 radio telescope are pre-assembled and then ready for use after in-
stallation. However, to ensure you get the receiving system maximum performance, you need to check some de-
tails of the antenna. This procedure is performed with the radio telescope and the receiver turned off. First of all,
you need to verify that the distance between the feed horn disk and the center of the parabolic antenna is between
80 and 81cm. 80.5 cm is in fact the focal length of the parabola (230cm diameter multiplied by 0.35 focal ratio).
Then take the "Collimation rod" (16) and screw it on the feedhorn front thread.
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