G23 was a rare numbers station known for being broadcasted on Hitler’s birthday (April 20th) on 4773 kHz, but not much else is known about it. No recordings exist and the station structure is unknown as well. G23 is briefly mentioned in the ENIGMA 2000 control list v1.3 and the Conet Project CD booklet. However no supplemental information is provided.
Nickname: Hitler’s Birthday / 2M8
Frequency: 4773 kHz