The immersion options menu has an "Antenna" item.  I figured out it only stays activated (showing a blue dot) when you are airborne.  However, it doesn't appear to make any external change to aircraft.  What I believe is the Antenna mast is always "down" even whether the option is selected or not ~ even when you're on the ground.  Should the Antenna disappear / retract?

Hi rcafgunner,
The Antenna is only operational when the aircraft is airborne. It is an additional communications antenna that's on the right side of the under belly.

We have already noted that there is a bug which doesnt allow the user to extend or retract the antenna through the immersion menu.

It is noted for the next update  :)

CJ wrote on Apr 4^th, 2025 at 8:17am:

Hi rcafgunner, The Antenna is only operational when the aircraft is airborne. It is an additional communications antenna that's on the right side of the under belly. We have already noted that there is a bug which doesnt allow the user to extend or retract the antenna through the immersion menu. It is noted for the next update  :)

Thanks for the quick reply and info about the bug.