You may want to search through previous posts to see what others have tried in the past. Do you have the most current firmware? You might want to consider a different antenna. Ironically, sometimes less is more when listening to ARMER. By that I mean try any other antennas that you may have lying around, even if it is for other bands The way the system is designed you are likely getting signals from more than one site, thus the receiver has difficulty decoding it. Also, since you have a portable, try moving the scanner a few inches one way or the other to see if the reception changes. Some people have even had good luck listening on other sub-systems. For example, try monitoring DK L MAIN 3 from the Ramsey County site.