That's a prototype of the antenna. The ones we have in stock are slightly higher performance.
Thanks for this Syed. Much appreciated.
This appeas to me to be "Boresight Gain" which I assume is looking straight at Antenna.
Do you have the Gain measured against angle of Signal?
This is a possible Helix / Helical antenna I am thinking about.
This .csv contains a bunch of the raw data associated with the chamber test. I haven't reviewed it in a long time; no telling what kind of secrets are inside!