Simple Ham Radio Antennas--Improving the Super-J. Post #967.

Improving The Super J
(http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=32360)
Author:  John Higgins.
Please click the title link or insert the title URL into your browser search box to read the full article.
Comment:

Fascinating article from antenna engineer John Higgins.  In this richly documented article, Higgins show us how to improve the already excellent performance of a VHF/UHF J-Pole antenna.

According to Higgins, the collinear J-Pole antenna, commonly referred to as the "Super-J", improves the efficiency and performance of a regular J-Pole.  Higgins says the key to successful "Super-J" design is "the phasing stub with a simple coil."  This stub allows for only a small separation between the two half-wave radiators in this antenna.

Mr. Higgins backs up his design with photos, SWR curves, impedance charts, radiation patterns, and actual on-air experience.  The "Super-J" antenna is easily made from locally available materials.  Why not make a "Super-J" for your VHF/UHF operations?  You may never go back to an ordinary J-Pole antenna again.

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

http://www.kh6jrm.info
http://www.HawaiiARRL.info
https://oahuarrlnews.wordpress.com
https://bigislandarrlnews.wordpress.com

For the latest science and technology news, please visit this web site:

http://hawaiisciencedigest.com

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today!

Aloha es 73 de Russ (KH6JRM).

Comments

Popular posts from this blog

Antenna for Condo Backyard-Stealth. Post #1542.

G5RV Multi Band HF Dipole Antenna. Post #1555.

Amateur Radio Bicycle Mobile Setup. Post #1554.