End fed portable all band dipole setup and 150W matchbox 9:1 unun


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IQVTnKQuKaM. This is post #1066 in a continuing series of "Simple Ham Radio Antennas."

The heart of this all band HF end fed halfwave antenna (160 meters to 6 meters) is the 9:1 unun transformer used to match the high impedance of the wire antenna to the low impedance of the HF transceiver.  The 9:1 unun is made from 20 gauge wire wound on a torroidal coil. You can order the full unun through eBay under "nelson_antennas."  The antenna can be configured as a vertical, sloper, or inverted vee. Adding a counterpoise system will improve efficiency and reduce ground losses.

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

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.wordpress.com.
http://www.kh6jrm.info (breaking news for radio amateurs).

Other sites of interest:

http://hawaiisciencedigest.com (science and technology news for radio amateurs).
https://hawaiiintelligencedigest.com (trends in geopolitical intelligence, strategic forecasting, terrorism, and cybersecurity).

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

Opinions expressed in this blog are mine unless otherwise stated.

Aloha es 73 de Russ (KH6JRM)

Comments

Popular posts from this blog

"Big Hat" Vertical Antenna. Post #1422.

Antenna for Condo Backyard-Stealth. Post #1542.

G5RV Multi Band HF Dipole Antenna. Post #1555.