Thanks for the welcome and the advice, greenja. I have read through the User's Guide.
The packet sniffer is not useful for this, I don't think, because the event only happens when the device is paired with the dongle. I only have one dongle so I don't know how I can both sniff and connect. But am I wrong in thinking that if the event were a broadcast, btool would pick it up? Perhaps its just a keep alive packet which btool doesn't show.
My internet searches so far have not answered my question, but maybe I'm just not looking hard enough.
