Monday, February 4, 2019

RANDOM WIRE ANTENNA with 9:1 UnUn home made (part 1). Post 1764.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2M9Aep6DHz8.

Random Length Wire Antennas can be a lot of fun to use if you have a sturdy balun and decent ground radial or counterpoise system to control SWR and stray RF in your shack.  In this video, Paul (OM0ET) shows us how to design and build a 9:1 UnUn for this versatile antenna.  The balun uses a T 130-26 toroid from an old PC Power Supply.  The original design comes from VK6YSF (https://vk6ysf.com/unun_9-1_v2.htm).

In part 2, Paul will test the final antenna design and balun on his Xiegu X5105 transceiver running only 5 watts output.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast with is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

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Aloha es 73 de Russ (KH6JRM).