Could this be local, coming from Ottawa Airport (that's the only listed case that makes sense), otherwise DX from the U.S. side? Is it a continuous CC? Will listen later today, although the sheer number of continuous signals on UHF is an increasing problem these days.
My 996P2 shows Signal Hill on the display when a search lands on that frequency. Not sure if that's something in the data stream or something preprogrammed into my scanner that it thinks is part of the site.