Couldn't sleep, went for a drive. The STR is definitely at the Bell Labs tower site in Murray Hill, it's
only peer is the Union County Simulcast (Site 7), it's identifying the license as WPTZ794, and it is
only carrying State Park Police for traffic. No Union County traffic was seen on it during the 20mins I monitored it, but there was a denied UC affliation, and a strange Check/Ack affiliation I'm sure GTR can explain. As to signal...
In the outer parking lot of the facility, I had RSSI readings between -39 and -46, with S1-S2 on the meter with no antenna on the radio. Half a mile in either direction between WSW to N to NE it dropped to -65 to -69. The other way around it's like it's not even there. Directly under it on I-78, and I mean literally looking straight up at it, I had nothing without an antenna and broken signal with the mobile antenna. Same for the approach from Union on I-78 and it being in my wake towards Watchung. Over near Short Hills Mall the RSSI was -77 with a not entirely reliable decode, and by the Florham Park line on NJ-24 it was all static even with the antenna. So it appears to be set-up directionally to cover/test northeastern Berkeley Heights, southwestern Summit, and most if not all of New Providence. I didn't check to see how strong it was into Chatham.
The hard data for
@GTR8000's OCD that I seriously respect and appreciate so much: