DMRAmComm DMR Last Heard

Ten dashboards, six sources. AmComm publishes ten Last Heard dashboards. Four of them are not separate servers: 3102, 31051, 3106 and 3109 return byte identical rows, and 3103 and 3108 do the same. Polling all ten would add nothing but load, so this page reads the six distinct ones and says so rather than padding the count.

Two clocks. Some of these servers stamp their rows in UTC and some run five hours behind on local time. That offset is measured continuously rather than written into the code, because a hardcoded figure would go wrong at the next daylight saving change. The measured value for each server is in the Clock column above.

One transmission, one line. The same over is reported by every server that carried it, so the rows are merged on radio ID and talkgroup within a four second window, and the peers are collected onto a single line. Four seconds is measured, not chosen: the servers agree with each other to the second, while a station taking normal short turns can key again three seconds later, and those are real separate transmissions that must not be merged away.