Micro EFHW antenna
thingiverse
Micro End Fed Half Wave antenna for QRP The toroid housing can be removed from the spool and directly connected to the radio with BNC-BNC male adaptor, cables, etc. Bill of materials: - FT-82-43 toroid (with 49:1 winding ratio) - BNC female connector (Amazon, example: https://www.amazon.it/dp/B07DDDQP5M?) - 100pF 3kV ceramic capacitor - Mammut screw connector Art.80596 (cross dimensions 5.85x3.7 mm) (Amazon, example: https://www.amazon.it/dp/B00EAQPWVW?) - BNC-BNC male adaptor, optional, only if you need to attach directly the antenna to the radio (Amazon, example: https://www.amazon.it/dp/B06XX8JBTW?) - 23AWG or 26AWG wire (from online suppliers like Farnell, Mouser, DigiKey, RScomponents, etc) Toroid housing and cap to be glued, fitting can be adjusted by scaling with some percentage one of the two components. For examples and tutorials about EFHW winding and details visit my website, section "Articles, videos and links (international)". Follow me and share your prints on Instagram and Facebook @IU1OPK Visit my website https://www.iu1opk.com
With this file you will be able to print Micro EFHW antenna with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Micro EFHW antenna.