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[aprssig] Scaling APRS antenna

chuck gelm nc8q-1 at gelm.net
Sat Sep 18 03:59:19 UTC 2004


Andrew Rich wrote:

>Hi,
>
>I picked up a beam stainless steel 400-420 MHz
>
>How can I work out how much to cut off to bring it up to 438 MHz ?
>
>Cheers 
>
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>
Work out by dividing 410 by 438.
Desired length should be 0.9361 of present length.
Remove 3.2% from each end of each element.

HTH, Chuck






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