I was scanning my FL’s, monitoring a statewide system in Ct. (Ct. Land Mobile Radio Network, or CLMRN) when something interesting pops up and I pressed “Channel” on the lower three buttons at the base of the display. This stoped the scanning action and “held” on that particular TG for me, in order to catch any replies on that TG. But I was caught by surprise when the SDS200 left the TG to catch some traffic I had on a few conventional frequencies I had programmed as Priority DND. When the trunked TG became silent, still holding on that TG, the SDS200 jumped to the conventional frequencies when they became active. I have been under the impression the conventional analogue priority features only worked when the scanner was scanning those conventional frequencies, not when the scanner was scanning trunked systems. And since I had the scanner held on a trunked TG I was pleasantly surprised to see this happening. I haven’t as yet reviewed how the priority features work, and what to expect, my first thought was to ask here about it. Was I working under the false impression what I experienced was not possible? Did I get it wrong? Comments?