I can no longer say I've never decoded a negative db signal anymore. I am now catching KLEW RF 32 @ 75 miles and -23.1 db! This has been it's second appearance in a week. I figure a bit of skip is in.
What surprises me is that I am 18 miles from KYDS-LD on RF 32 @ 9.3 db. I have a bit of terrain shielding though from KYDS.
Pretty cool though.