I have a problem when using my FT-450 (non "D") on VARAC , on the 1st CQ call I can here audio feedback in the rig speaker, however this does not happen on the second CQ call, and then when I start another CQ the feedback is there on the 1st CQ not the second ? anybody with this rig have similar problems ?

Hi I am just getting started with VARAC I have set the Cat interface (using a Yaesu FT-450) I can get the rid to TX and call CQ, but I can't turn down the ALC level on the radio, I am using a usb audio interface, I can see on the Modem screen that I am receiving audio, but on the main program window I cannot see any activity (cannot receive and stations) any idea's would be much appreciated, I am using FT8 successfully with WSJT-X and Gridtracker so I think the radio is set up correctly ? regards Alan