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HelicalAntenna

helical

Helical Antenna are directional, but not as much as ParabolicAntenna.

They are almost always HomeBrew.

They are usually about 18dbi gain.

When using a Helical antenna make sure that the other end of the link also uses one or you will lose 3dbi of gain. Also make sure it's wound in the same direction as yours, or you will lose all signal.


Version 3 (current) modified Tue, 03 Jul 2007 23:12:02 +1000 by graybeard
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