What's this hole in the conning tower for?

[Sirrvs]

Originally Posted by Aktungbby

ALL this has triggered my interest especially since Bubblehead cannot do a Real life periscope depth radio transmission in SH IV. https://www.subsim.com/radioroom/sho...04&postcount=1 and is looking for a file to extend the radio antenna length.... But what a really cool mod would be for later in the German career modes is this imho: The schnorkel with the radar detector attached!

That would be a cool upgrade. Aha, there we go! The antenna circled in green is what seems to pop out of the hole when submerged, although it's in a different location on the conning tower:



I think you're right. Probably an improved radio antenna for communicating when submerged.