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. 👍 Support BudgetHamRadio channel - https://buymeacoffee.com/budgethamradio 👍 Remember to Like, Share, Comment, and Subscribe. 👉 Like this video? For more videos similar to this, click here - https://youtube.com/@BudgetHamRadio?sub_confirmation=1 👉 For my other videos featuring baluns, ununs, chokes, or filters - https://www.youtube.com/playlist?list=PLVGuFAwp8kOWsi1w5k5xniGaTXuA_fl6N 👉 For my other videos featuring DIY homemade antennas - https://www.youtube.com/playlist?list=PLVGuFAwp8kOWRIgOz_qUMrdTA1wsWmja0 👉 For my other videos using the NanoVNA - https://www.youtube.com/playlist?list=PLVGuFAwp8kOWsi1w5k5xniGaTXuA_fl6N Thanks for watching and 73's. Jerry KM4ZKB A list of links is provided below if you would like to purchase anything seen or mentioned in this video. If you buy through these links I will earn a small commission on each sale which will help to support the channel to provide more videos. It will not affect the price you pay. *Amazon Affiliate Links* 16 AWG Magnet Wire, 4 oz - https://amzn.to/3ZSafdQ 4x4x2 PVC Junction Box - https://amzn.to/3DzPCLQ FT240-43 Amidon Toroid Core (need 2) - https://amzn.to/3PeOaRz SO-239 Bulkhead Connectors - https://amzn.to/3DCdwqg 100 pf Capacitor- https://amzn.to/3VV37fi NanoVNA-H4 - https://amzn.to/492qZTG SMA Male to SO239 UHF Female - https://amzn.to/3Z7d8a9 SMA Female to Female Barrel Connector - https://amzn.to/3ZmllIK Eco-worthy 20ah LiFePO4 - https://amzn.to/4egqRRH Eco-worthy 30ah LiFePO4 - https://amzn.to/4fEVscr Eco-worthy 50ah LiFePO4 - https://amzn.to/3YBOJcB Battery Charger 20ah - https://amzn.to/3AFj3Li (works with multiple battery types and sizes) Battery Power Meter Analyzer - https://amzn.to/4fWHT8C Antuner - Antenna Tuner Power SWR Meter - https://amzn.to/3NXq2Cn Goture 21 ft Carbon Fiber Pole - https://amzn.to/4hGZiDO BNTECHGO Silicone Wire - https://amzn.to/3CCqrYK Carabiner S-biner Clips - https://amzn.to/3O5rbI1 BNC Female to Dual Banana Female - https://amzn.to/3NZmT52 SO-239 PL-259 to BNC Male Adapter - https://amzn.to/3YU4BIG Mueller Clips, 10a - https://amzn.to/4elgThJ Male/Female Bullet Connectors - https://amzn.to/4hGW9DU Crimping Tool - https://amzn.to/3Z8L2eT Wire Stripper with crimper - https://amzn.to/4ep91vO Mirror Mount Jaw Clamp - https://amzn.to/3YVMlP6 SO-239 STUD MOUNT for Jaw Clamp - https://amzn.to/3Ci4ldH Rope Pulley - https://amzn.to/3O1b4eP Paracord - https://amzn.to/3O3vNP3 Wireless Microphone - https://amzn.to/3CJBcZd 👍 Support BudgetHamRadio channel - https://buymeacoffee.com/budgethamradio 👍 Be sure to Like, Share, Comment, and Subscribe. 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