I was having a look at the current band plan for 3Y0J (Bouvet Island dxpedition) and, unless I am reading it wrong, it appears that they are going to use 14.105 MHz for 20m FT8
This means the standard freq for calling CQ on 20m with VarAC is going to get quite crowded if all goes fine and they manage to set up camp on the island.
Thank you. I sent them a note about this. Donno if they will pay attention.
But At least they should be aware that they might get some interference as it is VarAC CF used by many at any given moment.
They also picked the 15 and 17M freqs we use for VarAC for FT8