Trunktracker,

If your trunk.tsv has multiple system define as in the example trunk.tsv that get installed with op25 then the software will scan or sample all of the systems defined approximately every five seconds as long that the control channel that it is currently tuned to is idle.   Voice traffic halts the scan or other systems and resets the timer.    This feature is not real useful if your system are fairly busy as you’ll end up missing a lot of traffic with the round robin taking place.   Probably best to only have one system in your trunk.tsv file, but that is your choice to determine what works best for you.

Bill