Tuesday, October 24, 2017

Extended Double Zepp Antenna. Post #1290.

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If you want to squeeze a bit more gain out of your HF horizontal dipole antenna, you may find the Extended Double Zepp Antenna a useful alternative to the traditional 1/2 wavelength dipole.  Stan Gibilisco (W1GV) does an excellent job of explaining the theory, construction, and operation of this antenna.

The Extended Double Zepp Antenna is basically a collinear array of "two 5/8 waves in phase", giving a theoretical gain of 3 dB. Be sure to use balanced feed line such as 450 ohm ladder line, 300 ohm television twin lead, or homemade 600 feed line with a balanced "tuner" or a 4:1 current balun/"tuner" combination connected to your rig.

For the latest Amateur Radio news and information, please visit these websites:

http://www.Hawaii ARRL.info.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353  (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars and links for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

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Aloha es 73 de Russ (KH6JRM).