It sounds like you have already locked on the F1, in that case you can activate your box, and tune into ch. 712 to lock on F2 at 111.1
In my case with a 505 receiver, only once activated I had that channel displayed.
Actually before activating and other than channel 299, I think I had the classic listing which would show the Canadian channels in the 300s but once activated it showed the advanced line up numbering, with HDs in the 300s and the Canadian channels below the 100.
I think that once activated ch. 70 APTN is also on F2.
In my case with a 505 receiver, only once activated I had that channel displayed.
Actually before activating and other than channel 299, I think I had the classic listing which would show the Canadian channels in the 300s but once activated it showed the advanced line up numbering, with HDs in the 300s and the Canadian channels below the 100.
I think that once activated ch. 70 APTN is also on F2.