Originally Posted by vulpina
What are the benefit of this antenna , what flying style is it for ?
Do you have any beamwidth data on it; angle ?
The helical is for all styles of flying, especially stunt flying as there is no signal loss in a bank or loop.
Beam witdth is inversely proportional to the gain and number of turns:
3 turns - 75 degrees
6 turns - 55 degrees
12 turns - 40 degrees