Hello, I have a new Yaesu FTDX-3000. I've just started digging into the waterfall / scope features and noticed that I have a signal showing that follows the dial on all bands. I have already sent in a support request to Yaesu but was wondering if anyone else has experienced this. I checked all sources of RFI here and unplugged everything and the signal persists. It is there even if I go to ANT2 or ANT3 which have not antenna's on them.