It's a basic antenna mount for TBS Style SMA antennas.
Some people feel that these types of Antenna mounts may contribute to frame vibrations, I had to weigh vibration against clarity of video.
I could not detect any unusual behaviour in either my AOS 5.5 V2 or my Cine35. Both fly great and I am able to use my HD Zero 1W transmitters in those frames with nice clear picture on my receiver.
Printed in TPU
The author marked this model as their own original creation.