"FWIW, I believe Bob's signal will be 99 watts from Pinnacle Hill...considering 92.1 is a relatively "clear" frequency that ought to cover Rochester pretty nicely, especially for in-car listening. In-home clock radios? Not so much...but I'd assume Bob's more interested in the in-car and at-work audiences anyways?"
I doubt he's going to expect much listening beyond the Monroe County line in either direction anyway, since on 92.1 to the east there's already a 25 kW class-B1 co-channel classic hits station from the Syracuse metro (WSEN-FM) that's audible in Perinton, Penfield, Victor, Canandaigua and points east. To the west on 92.1 there'll be a 6 kW co-channel class-A noncomm in Amherst/ Buffalo in the next couple of years, with construction to start as soon as the Feds get around to sifting through the pile of applicants and issuing somebody a CP. (That one could be either a null-filler for WNED-AM, a second service for SUNY Buffalo to expand the programming menu that's now on WBFO, or whatever one of the other colleges cares to offer as either a student-run signal or alternative to the main pubcasters...stay tuned...) Depending on where they put the tower for that one, it could wind up knocking on the door in the western burbs.
Given that the Pinnacle Hill 92.1 signal will be so hemmed in by signals to both the east and the west, I wonder if it'll be on that channel for long, or eventually move someplace else...I guess the old 95.5 repeater the Fox used to have up there is no longer usable since the main transmitter for WFXF moved to Baker Hill, but could there be some channel further up the FM commercial band that might be kicked around less?