[aprssig] Scaling APRS antenna

[chuck gelm]

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 
>
>_______________________________________________
>aprssig mailing list
>aprssig at lists.tapr.org
>https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
>
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