BUILD and TEST a 49:1 UNUN for EFHW HF Antenna

Step by step build instructions for a 49:1 UnUn / balun for your End Fed Half Wave EFHW HF antenna.
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Thanks for watching and 73's.
Jerry
KM4ZKB

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Thanks for watching!

Chapters

00:00 Intro
00:13 Materials needed
00:46 Begin winding UnUn
13:57 Solder and tin connections
19:00 Drill Holes and Mount SO-239 and other connections
25:13 Mount Core in Box
28:07 Ohming it out (shows difference between DC and AC)
29:53 Test 49:1 UnUn with NanoVNA
33:18 Test 49:1 UnUn with 40m EFHW
34:52 Radio and tuner verification 40-10m bands
37:47 Summary
38:15 Outro

#hamradio #antenna #hf #nanovna