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Detail of the feed system
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Sideview - adapting and connector. |
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View from above. Observe the 1/4 wave section (below) which is the impedance adapter.
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Another side view. Check the connector, mounted on a brass block as supplement; this way, the connector just makes contact with the adapter at the other side. |
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View of the complete helicoidal antenna.
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Orthographic view (no perspective) of the helix. |
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| (c) John Coppens ON6JC/LW3HAZ |