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ANTENTOP- 01- 2005, # 007  

Building Antennas

 

 

Figure 3 Direct feed WHAS

 

Usually the antenna can be matched at most of amateur HF bands. For better work the WHAS install ferrite rings (5- 20 ring with any permeability) at two ends of the coaxial cable going from TX to ATU.

 

 

 

At my experimenters with WHAS I have used ATUs and ‘Artificial Ground’ described in reference [1].

 

References

 

1. Igor Grigorov. Antennas. Matching and Adjustment. – Moscow. RadioSoft, 2002. ISBN 5-93037- 087-7

 

 

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August 3, 2016 16:43

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