I had a CommRadio CR1A and sold it a year ago. (Dumb thing to do!) Now I decided I wanted to get back in SW and I bought a Tecsum 880. I know it is cheaper but there is no comparison to the CR1A. CR1A was quite, but the 880 picks up noise and hum from the antenna even when I use an external antenna. I guess I need to remove the antenna when I'm going to use the external. Any one else with the same stuff? Any suggestions?