The 3-turn helical antenna that I build in this video has a 9.55 dBi gain and works great as a directional antenna on a diversity receiver setup. The best part of this is that you can make this for almost no money. If you have access to a 3D printer and some scraps lying around, it is virtually free.
I lied. The best part is that this DIY antenna is probably better than any patch that you are probably using right now.
See the link below for open source files. You can also get 5 or 7 turn files to build an even longer range antenna. See my antenna tracker video here to see a pair of 5 turn helicals: [ Ссылка ]
Farvew Open Source Antenna Files:
[ Ссылка ]
Detailed Build Video: [ Ссылка ]
