I had a qso yesterday with ON5RZ/P, not really portable but bicycle mobile. He mentioned the contest. After downloading SD and a crash course later I was ready. I participated just over an hour on 80M.
I don’t have a very suitable antenna for this band, a home built ZS6BKW, “sloping” from 8 to 5 meters above my garden. In a small town. But I managed to make 11 qso’s. With S9 qrm I had to search the strongest stations on the band.