How to design and build a 70cm DIY loop antenna
Thanks to "electronics unmessed" for this exceptionally well done tutorial on the theory, design, construction, testing, and use of a 70cm band loop antenna. The finished product is lightweight, portable, and easily concealed for radio amateurs living in deed-restricted housing. If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Findn5bihWE. Here are some comments from "electronics unmessed": This video is about building a loop antenna for the 70 centimeters amateur radio band. What I particularly like about this antenna is that it implements a bandpass and a powerful antenna at the same time. The principle of this antenna is actually very simple: A ring with the circumference of one wavelength is excited with its resonant frequency and thus acts as a filter and antenna at the same time. Since this type of loop antenna has a fairly high radiation impedance, a suitable matching network is needed