Riley Hollingsworth is the ARRL guy managing the Volunteer Monitor program and he has cleared up a few things about when you must self ID. This applies to operating on amateur radio frequencies ONLY. If you are operating on a frequency outside of the amateur radio bands you will follow the direction given by the local leadership.
You must self ID once every 10 minutes if:
- You are using your own callsign
- You are using a club callsign, like W4CAE or K4EMD
- You are using a special event tactical callsign, like the ones used for Harbison 50K or Tour De Cure
- You are using an ARES/Auxcomm tactical callsign, Like LEX EOC or State EOC
Of course you will self ID sooner if the event coordinator directs you to. In some events you might be asked to self ID on every transmission you make. An example would be “Net Control LEX EOC message body goes here K4LLE“
You must self ID every 60 minutes if:
You are using an FCC issued 1×1 special event callsign. An Example is K2L. It is also suggested that instead of every 60 minutes you self ID every 30 minutes just to be on the safe side. You should always follow the direction of the event coordinator.