RFB radar blind and Sonar deph?
 

So I played my first patrol with RFB its 43 and im using a balao class sub. problem. My sonar is deph and my radar is blind as a bat! Im spotting ships long before my radarman ever sings out a contact. And I can be right next to a ship and the soundman dosent hear a damm thing. Am I the only one here with this issue?