USB Radio - LRT-FMAM100U

I bought a USB radio of Logitech. It's good to record some programs off-air. I buy some CDs of English classes of the NHK radio. I don't pay any more though the AM radio is staticky. This USB radio can receive allmost all channnels in the Kanto area in Kawasaki. I could listen for
AM: NHK 1st & 2nd, AFN, TBS, Nippon Hoso, Bunka Hoso, Radio Nippon
FM: Tokyo FM, Inter FM, J-Wave, bay-fm, FM Yokohama, K-City, FMSetagaya, NACK5(very staticky)