I'm new into digital modes and just succeeded in setting up WSJT-X and my FTDX3000 for FT-8. Sound devices is USB Audio CODEC and receiving / decoding FT8 is working fine. The problem is: when I push the Test CAT button in the Settings / Radio, it turns green. After this pushing the Test PTT button keys the radio. So far, so good. But, when going into QSO the transmitting audio is going via the MAC Speaker, instead via the radio, altough the radio is keyed.... Is there someone who can explain me how to transmit the FT8 audio signals via the FTDX3000 instead via the computer speakers ??