Hi Hisami,
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The PA0RDT ?
PA3FWM
PA0NHC dual fet
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Are probably the best simple designs around at the moment.
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My favourite remains the Chris Trask (fig.5) which I believe offers the bast trade between performance, cost and ease of construction.
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My previous active antenna experiments can be found at
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Regards,
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Martin
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On Wed, Mar 12, 2025 at 11:34 PM, hisami dejima wrote:
