After doing some scanning of the 6-7 MHz region, I decided to go down to 3-6 MHz and see what I could find. The 6 MHz aeronautical band and the 6 MHz marine frequencies were relatively active but only with legit traffic.
I've noted Italian traffic on 4630 kHz USB in the past, but I don't think I've logged 4620 before. These guys sound like the group previously heard on 4630 kHz USB...lots and lots of radar SWOOP SWOOP SWOOP SWOOP (I think its radar) QRM making copy really painful at points. OTH radar (or whatever this QRM is) is all over the 4-5 MHz region.
SIO 211 considering the heavy QRM