I am pretty sure what i am hearing is interfernce from somewhere, but figured i would ask the experts. What I have is a Icom R75A with a longwire outside. Here just recently (past couple of days) I have been getting some type of noise on the 2899 , then on 5689, and some of the 6000 USB band. What it sounds like is windblowing with some type of data communication, that sort of sounds like a laser gun or a computer generating data. It seems to cover most of 2000, some of 5600 USB. I would upload the noise here to the site, but i have nothing to run my Icom to the computer with. Just maybe some ideas, on where i could possibly locate this irritating noise, and it also blocks out transmissions as well., nothing has changed ont he inside of the house since setup, tried re-locating the unit, but no change, not sure if this will help but i unplugged the antenna, and of course noise goes away, if i put my finger on the back end of the antenna plug in, then the noise somewhat comes back but of course very faint. Any ideas?