Jellicoe's ships proceeded to their rendezvous undamaged and undiscovered. However, he was now misled by an Admiralty intelligence report advising that the German main battle fleet was still in port. The Director of Operations Division, Rear Admiral Thomas Jackson, had asked the intelligence division, Room 40, for the current location of German call sign DK, used by Admiral Scheer. They had replied that it was currently transmitting from Wilhelmshaven. It was known to the intelligence staff that Scheer deliberately used a different call sign when at sea, but no one asked for this information or explained the reason behind the query – to locate the German fleet.