Because you need at least 2 channels for it to work.

Thumb DV works great, Northwest Digital, but you need at least a pair. 73, Curtis - N9INK

Mike, I can easily help you, but this isn't really the proper place for this post. Contact me off list or give me a call.. 73, Curtis - N9INK

John, it's starting at boot because the service is enabled. if you don't want it to start at boot systemctl disable mmdvm_bridge or after you've made changes systemctl restart mmdvm_bridge. See system

If you have established an open bridge with BM the correct port id 62035 and should be the password they assigned you, not passw0rd. The ID with 50 at the end is correct. Hope this helps, Curtis

Sorry guys maybe I missed something in the past, but WHY is there such an unwillingness to help others with HBMonitor. I understand it is "Unsupported work" but wtf?? Might be a better idea to remove