First picture shows the finished ground station antenna. You see right, the frame is made from a large carbon fiber umbrella. The white material is actually just some thin paper used for easier handling of the wire mesh the reflector is made of. It will be removed later, but can be kept as a protection during transport. After removing the paper, wind can go right through the reflector so the wind load should be quite low. The diameter of the reflector is somewhere slightly above 150 cm. The man behind the ground antenna is in the true sense of the word Dr. Lampe from Siemens.
Second picture shows the sensor board. The little radio module is mainly used as a microcontroller but can also transmit a beacon for several days to help us find the payload. The little round white thing in the middle is the pressure sensor. One temperature sensor is hidden below the radio module, a second one can be attached with a wire. One of the left I/O pins will be used for the Geiger counter. The board will also supervise the voltage of the main battery so it won't deep-discharge.