My "new" FT-1000D has noticeable display and button noise in the main RX when in SSB and BW at 2.0 or 2.4 KHz when no antenna is attached. I do not notice it at narrower bandwidths on CW. It is unaffected by front end setting but is affected by RF gain. Not a critical problem, but annoying. Anyone else have experience with this? Dave AA9D