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Re: Aerial element diameters



Hi Phil,

this list (respectively diagram) is part of the NBS-document. I think I have
PDF-copy of it. You will find more informations at:

www.i0jxx.it

www.qsl.net/dk7zb

www.ifwtech.co.uk/g3sek/diy-yagi/index.htm

Hope this will help you and cuagn via AO-40.

vy73

Gerald, DL1RG


At 20:18 03.05.02 +1000, you wrote:
>Hello,
>
>After much trial and error, not to mention frustration, I now have a 435 MHz
>aerial that delivers a listenable signal from the FO satellites. Now I want
>to improve on that with an aerial built from the NBS tables.
>
>My question is: Does a formula exist that will allow me to calculate the
>amount that I have to shorten the elements by where the diameter is larger
>that specified? Here in Australia, the smallest diameter aluminium tubing
>available to the general public is 10 mm (3/8 inch) and the tables specify
>4.8 mm (3/16 inch).
>
>Of course, the alternative is the trial and error method but I want to avoid
>increasing my large stock of short lengths if possible.
>
>--
>Regards,
>Phil
>phil@spiderweb.com.au
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