Build a random wire end fed antenna and make amazing contacts

 Random end-fed wire HF antennas are excellent choices for your next antenna project, provided you understand the need to match the high impedance of the wire to the low impedance of your transceiver.

The key to the success of this antenna is the use of a 9:1 balun to match radio to antenna.

In this video from Michael Martens (KB9VBR), we learn how to make this simple balun and use a few simple tuning aids.

If you can't see the video, please insert this title URL into your browsers search box:

Here are a few comments from Michael (KB9VBR):

Can a non resonant antenna be efficient? It sure can. I show you how to build a non resonant random wire antenna with a 9:1 transformer. FT-140 43 mix Ferrite Toroid: Toroid Core FT140-43 Ferrite: 18ga Enameled Magnet Wire: 4 in. x 4 in. x 2 in. PVC Junction Box - Gray: Homebrew Antenna Challenge:    • Amazing! We built antennas out of ran...   Random Wire end fed antenna resources: Like what you see? You can leave me a tip: KB9VBR VHF/UHF Antennas: Become a patron! Unlock exclusive content at:   / kb9vbrantennas   Support Ham Radio Q&A by shopping at Amazon: Timestamp 00:00 Introduction 00:33 End Fed Antennas 01:22 Random wire antennas: long wire or end fed Zepp 03:11 Wire Lengths are important 04:09 Ferrite cores and wire 06:55 Building the 9:1 transformer 09:28 Installing the antenna 11:05 Testing and making contacts 15:12 Advantages and Disadvantages of non resonant antennas My Parks on the Air setup: Transceiver: Battery: Tuner: Folding Table: Throw Weight: Video Production Equipment: Camera Lens Wireless Microphone: Microphone: GoPro: Music by license: As an Amazon Associate, I earn from qualifying purchases Contact Information: Questions, comments, or business inquiries may be directed to If you wish for your product to be featured on my channel, please contact me. #hamradio #amateurradio #hamradiohowto #antenna #antennaproject #nonresonantantenna #randomwireantenna #endfedantenna #efhw #endfedhalfwave #balun #unun #9to1transformer


End Fed Antennas

Random wire antennas: long wire or end fed Zepp

Wire Lengths are important

Ferrite cores and wire

Building the 9:1 transformer

Installing the antenna

Testing and making contacts


KB9VBR Antennas

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


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