I have noticed lately that operating psk has picked up in recent weeks as well as olivia,thor and contestia. A few years ago before ft8 was ever thought of, seemed that psk 31 was the king of digital and at times psk 31 sub bands were so crowded, that you had to go to olivia,etc. I live and work in a Vermont hotel and retired now,but we had a bad interference problem here that I to go to my mobile station to operate every day. I had many psk,olivia and cw contacts over past few years. So then late spring of 2016, I started hearing these tones and found out about ft8. Then went back to psk after about year and half and the psk,olivia sub bands were dead! Now that the sunspots are appearing more and more every day,week, the band conditions are getting better and better. I did get rid of the interference problem at the hotel and installed a new antenna,rf chokes,better grounding,changing of fire detection systems,telephone,data networks here has helped. There still always be some kinds of interference, but 75 meters is no longer useless and I can get my radio without fear of setting off alarms or blocking guests tv's. It is a joy to see the bands and modes coming alive again after a period so long of hearing receiver hiss and interference.