I bought a radioshark about a month ago in hopes of recording some AM radio programs while I was at work. The FM reception was a little bit better than "okay" but the AM reception was far worse. There was large amounts of static on most stations and I couldn't even catch some stations. So I decided to open it up, unsolder the internal antenna, and solder on a loop antenna I had made. Now the AM reception is clear, but I can hear another station faintly in the background of the station I am recording. Any ideas how to solve this problem?