I have had my BCD436HP for a couple of weeks now and am having a hard time receiving DMR communications. I am trying to hear the Gratiot County Road commission 156.105 in Michigan. I have the frequency programmed in, and the scanner will stop on the frequency and display DMR, Color Code 4, and slot 1 but I hear no audio. The same thing happens for some other DMR frequencies I have tried. Since I am still learning the radio I am wondering if I am doing something wrong.