Build an Endfed Halfwave Antenna with trap for 80m - Part I

In this video we build a slightly shorter 80/40/20/10 end-fed half wave antenna by using a "trap" or coil to add the 80m band. In the first part of the video series we shall see the 49:1 transformer construction and show the 110uH coil construction as well as discuss the overall antenna design. *I do not take any credit for this design. It has been published numerous times in hundreds of HAM forums. Part II of the series where we install and tune this antenna with a NanoVNA and make some design changes:    • Build an Endfed Halfwave Antenna with trap...   73 "Dan" W6DKW Schematic for 49:1 Transformer https://f5npv.wordpress.com/wp-conten... Note: The drawing gives credit to K1TA. And the source is from F5NPV.wordpress.com PARTS LIST FOR TRANSFORMER FT240-43 Toroid Ferrite Cores, QTY=2, https://www.amazon.com/dp/B07Y6NQRGF 16AWG Magnet Wire, https://www.amazon.com/dp/B07GBM6Y4Z SO-239 Bulkhead RF Connector, https://www.amazon.com/dp/B089ZZZZDS 100pF 3KV Capacitor, https://www.amazon.com/dp/B08HZ21X8L Various 1/4-20 hardware, two 1" bolts, ton of washers, some nuts. 4x4" Outdoor Plastic Box, https://www.amazon.com/dp/B01HCJDHUQ PARTS LIST FOR 110uH COIL 3/4" or 19mm Lawn Sprinkler Riser (Home Depot), 6 Inch long https://www.homedepot.com/p/Orbit-1-2... 20AWG Magnet Wire, https://www.amazon.com/dp/B07P2JFF5R Kapton Tape - 1/2" wide. https://www.uline.com/Product/Detail/... Heat shrink Tubing - 1" , https://www.amazon.com/dp/B07FPKVMTW 👉 Support the channel: https://buymeacoffee.com/dan_in_sd #hamradio #rf #electronics