Once you are at the AM FM screen there should be another field, which when selected gives you the information you are after. If not your firmware does not allow you to see this information. I had the same problem, but after updating my RNS510 to the latest firmware I found the selector for the system information was available. So I think you need to upgrade your firmware, since newer versions give you this function. Upgrading is easy. The trick is to get the DVD with the new firmware working in the first place.