They could very well mean APCO 16, which is technically correct BUT I think it's just a typo just like it also says "Trunktracker IV" when it isn't and it also says it has a "backlit keypad" when it doesn't. (The BC246T is a Trunktracker III, they discussed this a little bit in the link I provided above)
This page went live before review instead of after.
It is being corrected, now. Look for accurate information later this morning, and sorry for the confusion.
Except for the description of the channels. Best bet, if you want the full impact of what this scanner will do, is download the O/M from here. Or read the "Official BC246T Thread" here.