I am trying to monitor a local school that uses DMR repeaters. I found the frequencies using the FCC license search and need help to get further. The school uses tier 2 because the radios don’t support it (Hytera HP650). I can listen to the frequencies and hear the repeater make a small digital burst every 2 seconds and long digital bursts when someone is obviously transmitting. How can I find out repeater input and output frequency and also color code and talkgroup? I know I need talkgroup info to transmit but do I need it to listen to all activity? I’m very new to DMR.