draw_gee

Hi there, i'm new to this forum and i have this AVIC F900BT player recently installed on my car. I wanted to know, how can i listen/memorize an even radio frequency? I mean, in my city i have a radio station emitting on 94.8 FM, but i can only listen to 94.7 or 94.9 FM. I tried all the possible settings, but it doesn't want to give me these even frequencies. Please tell me, does anybody know what is the trick about this issue?