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1. www.youtube.com › watchTEST: Mini 49:1 UNUN (EFHW antenna) - YouTube

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   Link where to buy this Mini 49:1 UNUN: https://om0et.com/mini-49-1-unun.htmlTable with lenghts for all SW bands here: https://om0et.com/files/OM0ET-Mini_EFH...

2. www.youtube.com › watchTesting a 49:1 UnUn / Balun - Ham Radio Antennas - YouTube

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   Just a quick video showing how you can test your EFHW 49:1 UnUn for Impedance Matching / Transformation. In this video, we use a RigExpert AA-30.ZERO Antenn...

3. www.youtube.com › watchAmateur (ham) radio antenna: LDG 49:1 Unun and 1/2 wave 40 ... -...

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   21 lip 2023 · Recommended 9:1 Unun by LDG for your random wire antenna builds.

4. www.hfunderground.com › board › index9:1 or 49:1 unun for end-fed long/random wire? - HFUnderground

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   The "9:1 UNUN" are for random length wire antennas fed at the end. 49:1 or other high ratio transformers are for resonant "cut to frequency" antennas like the traditional zepp/fuchs antenna.

5. om0et.com › efhw-49-1-ununEFHW 49:1 UNUN - OM0ET | HamRadio Antennas

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   EFHW | Experimental Multiband Antenna with 49:1 UnUn. I made my first multiband experimental version of the Multiband EFHW antenna with 49:1 UnUn transformer. In this first part I want to show you complete process of made this antenna.

6. g7lrr.com › build-un-unHow to Build a UN-UN – Amateur Radio Website - G7LRR

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   How to Build a UN-UN. Direction: Fold the 3 metres of copper insulated wire in two. Mark the wires’ end so to recognize them when the windings is done. Wind 13 to 19 turns of the bifilar wire ( more turns better response to lower band ).

7. km1ndy.com › how-to-analyze-49-to-1-impedance-transformer-unun-using-a-nanovnaHow To Analyze A 49:1 Impedance Transformer (Unun) Using A ... -...

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   7 lut 2024 · Along my journey on understanding radio, electronics, and in particular, the magic of baluns, ununs, and other transformers, I came across this helpful video on how to analyze a 49:1 unun with a NanoVNA. I replicated it with the the “Alleyway Antenna” transformer.