Thank You Wise.
A little bit of news. For all submarines (IX too) made new models of DF antennas. From the left side, upgraded antenna with optional antenna for transmitting radio signals, which became operational at the final stage of the war. It will be available in ~1944. On the right side, the pre-war antenna design. All models now getting texture.
Follow the news.
PS. Screens antennas made in Inventor, in the game they will have a different color.