ARLA/CLUSTER: Desenhe a sua antena Yagi On-line.

[João Gonçalves Costa]

[http://www.g0ksc.co.uk/images/stories/duo9-46.jpg]
G0KSC OWA Yagi antenna design site

At the end of December, Justin Johnson G0KSC launched an OWA Yagi design site providing free effective designs for Ham Radio operators for bands from 21Mhz to 430Mhz.

The OWA (Optimised Wideband Array) Yagi is a very effecient Yagi. Whilst on paper gain figures may appear less them lower impedance designs, no matching device is required resulting in zero matching loss. Add this to design time ensuring high efficiency antennas and the result can be an antenna that radiates 100 Watts of every 100 Watts inserted.

Most designs available (all free) have been built and tested. These include dual band, single feed yagi's too.

If you want to give building your own antenna a go, visit the site and take a look, you may find a design you could use.

www.g0ksc.co.uk<http://www.g0ksc.co.uk/>

Fonte: Southgate Amateur Radio Club<http://www.southgatearc.org/>
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