DIYagi - Alpha Release - Yagi Antenna Helper

This is a piece of a much larger project, which will be released in several versions to help HAM/SDR folks build their own antenna. The beta will produce the mast as well, and that's on the printer right now (if you're reading this in the future). Full release will automate the mathematics of antenna placement based on desired frequency.  Follow me for that science~

This simple design lets you mount 6 gauge copper wire on…well, anything!

Making a yagi isn't super complicated, and there's tools available to help with the math (link below). A yagi antenna consists of the follow elements: director, dipole, and reflector.  The directors collect signal directionally, with the reflector bouncing back harmonics.  The dipole receives the signal. There's often many directors, with each one increasing gain. My build uses three.

Spacing & length of wire is determined based on the desired frequency (see: https://www.qsl.net/4nec2/).  The folks at https://www.eeweb.com/lets-build-the-yagi-antenna/ have a pretty nifty walkthrough of this process, so I won't go too in-depth with this build.

Get yourself some scrap 2x2 about a meter long.  The lighter weight, the better. Wires are cut, and placed in the wire mount at the proper distances.  The dipole is halved with a gap between the two, allowing you to connect your coax.  The coaxial wire is terminated. We used SMA for the simplicity of connecting to an HT.

./HappyHacking

Links: 

https://www.eeweb.com/lets-build-the-yagi-antenna/

https://www.qsl.net/4nec2/