I am in Warren and the above frequencies are what I imported.
I have not been up that way since just prior to the changes NHSP made. hope - now that the thread is under New Hampshire, some LOCALS can assist.
I would assume you should be fine hearing the South site, but...just in-case something changed, why not ensure you also have the older frequencies for now as well
You do say you hear Lebanon etc, so your Antenna, Coax and radio appear to be fine
I could just be your in a BAD Spot in Warren for F-South, have you also tried the other two??
When I had a place in Bristol, it was easier for me to listen to the Lakes Region UHF Link
and even with NHSP being lowband way back, I got better reception on their UHF Links
Keep experimenting and share what you find.
maybe even take the radio on the road over toward Rumney/Plymouth and see if it hears F-South while mobile