FPV 5.8G 7TURN helical antenna

Antenna dimensions:
Reflector 5.2CM
Design frequency 5800MHz

Gain ~ 4.5 + number of turns (3 turn minimum, 12 turn max)
3 turns = 7 dbi
4 turns = 8.5dbi
5 turns = 9.5 dbi
6 turns = 10.5 dbi
7 turns = 11.25 dbi
12 turns = 12.5 dbi