In this video we discuss the background and illustrate how you can convert your stock Helium Antenna to an awesome 9dBi Helium Yagi Antenna for testing and experiments for free and earn more crypto in doing so. All you need is craft material for this free antenna upgrade. The aim it to find ways to see how you can earn more HNT, while also eliminate Helium US915 interference. The proposed antenna is an indoor solution, and will teach you a few things about antenna design as you go, by going through the steps on this free yagi antenna upgrade. Don’t spend money on new or alternative antennas until you have tested your setup and see if you can benefit from the free helium antenna upgrade. This example we use is an extract from a University tutorial we designed, and can be downloaded from here