A model of the candidate antenna for SRS  – Subsurface Radar Sounder (Principal Investigator: Prof. Lorenzo Bruzzone) has been recently tested by SENER in Spain. The test consisted in suspending the SRS antenna and a full-sized mockup of the EnVision spacecraft from a balloon, lifting it more than 200 m above the ground. This testing will help guide the final selection of the SRS antenna. SRS main objective is to probe the Venus subsurface up to about 1 km depth. Envision is targeting launch in the early 2030s.

More details: https://www.esa.int/ESA_Multimedia/Images/2022/03/Aerial_antenna_for_Venus_mission_test