Monday, September 19, 2016

Simple Ham Radio Antennas--Construction of a 9-1 unun. Post #901.


If you're having trouble viewing this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=L4jGNFGN-RQ.  Here's a handy 9:1 unun from m1tina that will make your use of a longwire antenna much more efficient and pleasurable.  The 9:1 unun is an impedance transformer to feed high impedance, end-fed (unbalanced) random wire antennas, which may exhibit an impedance of a few hundred ohms.  The unun transforms the impedance of the wire into something closer to 50 ohms--something your transceiver will appreciate.  The 9:1 unun is wound on a T200-2 core and has 9 trifilar turns of enamel wire.  This is a great weekend project!

For the latest Amateur Radio news and information, please visit my news site at http://www.kh6jrm.info.

If you're a radio amateur living on the Big Island of Hawaii, be sure to check my ARRL PIO (public information officer) blog at http://bigislandarrlnews.wordpress.com.

Be sure to check out the blog sidebars for more antenna information.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today!

Aloha es 73 de Russ (KH6JRM).

No comments:

Post a Comment

Thank you for visiting my Amateur Radio Blog. I value your comments and suggestions. For Amateur Radio Antenna Topics and Discussions, stay here. For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.
Aloha es 73 de Russ (KH6JRM).