Saturday, January 28, 2017

Online Dipole Antenna Calculator. Post #1026.

Online Dipole Antenna Calculator
(http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=22713).
Accessed on 28 January 2017, 23:50 hrs, UTC.
Author:  Kitchener Waterloo Amateur Radio Club.
Please click link or enter title URL into your browser search box to read the full article.

Comment:

Here's a handy and easy-to-use dipole antenna calculator from the Kitchener Waterloo Amateur Radio Club.  Just plug your desired center frequency into the blank provided, and you'll get the total length of your dipole, as well as the length of each dipole element.  The measurements are presented as feet.

The computer generated length will give you a good starting point for making your simple dipole antenna.  You may have to trim wire to keep SWR low or to accommodate the antenna to the layout of your property.

The choice of feed line is up to you.  According to this post from the Kitchener Waterloo Amateur Radio Club, a variety of feed lines is available:

"The half-wave dipole is very simple to construct. Use 75 or 50 ohm cable to feed the centre of the dipole. This could be 50 ohm types such as RG58, RG8X, RG8, RG213, or 75 ohm type such as RG11, RG59, RG6 or even 75 ohm twin lead. Even zip cord such as what is used for lamp cords will perform quite well."

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