I would love to talk about "south", but I'll keep our conversation on a more realistic and practical basis, for now.
I don't see how our scenario gets cut "short" when you have WFAS doing the opposite.
As a Class A in White Plains, is not only able to move in, but change a City of License to inside the 5 Boroughs - and it is not one of the "Sacred 20+5" frequencies as is 94.7.
Jeff in Sa-ra-so-ta!
You're totally missing that both 96.7 and 103.9 are pre-1964 grandfathered stations, like Scott 'splained above. They can move. All 103.9 has to do is stay 16km away from Empire because of 10.7MHz IF issues. The site in the Bronx satisfies that need.
Those issues don't come into play with 94.7. And 94.7 is grandfathered as a full "B". Admit it or not, it is a New York City "B". It just has a Newark, New Jersey City of License, just as WHTZ.
A directional antenna on Empire, while being mucho-expsensivo also has the problem of where the heck do you put the thing?? There's no room at the inn! Look at all the creative antenna hanging that had to be done to put all of the TV stations back there after 9/11.
A lot of that room has been cleared out due to the removal of the equipment following the analogue shut down. (God Bless, Alex Smirnoff)
However, there is some room on 4TS. But again, 4TS brings up all of those allocation table issues mentioned above. Since the commercial band works on allocation tables and not contour protection like non-comm, it can't move to Empire even with a DA. If it were in the reserved band, we wouldn't be having this conversation. WBGO made the move with a DA easily to 4TS.
4TS might be an option. And a change of heart with regard to having a "real" antenna on 1WTC. This discussion has been primarily focusing on an Empire installation.
If 94.7 could have easily been moved to NYC, don't you think that would have been done long ago?
No, as far as Family was concerned, Oakland was where the studios were and 94.7 was a translator for it. They had no debt with 94.7 and the signal was acceptable for what they wanted to accomplish with it. No desire to move it.
The other option could be a taller tower at the site in NJ if it could get by all the NIMBYs. A 400' tower would put the COR at 1,050'. A 600' tower would place it at 1,250'. Of course, the chance of a 600' tower being built there is probably slim to none.
Yeah, you're right about that.
That ain't going to happen, either. As they would have to lower power as they raised the antenna, effects from multipath, and front end overload would be worse (in the City) than what they have, now. There is a Manhattan "D" application for 105.5 that may come into play with intermod. And then there's the NIMBY factor, you mention where they are, (you can see the current antenna from the South Orange train station)...
As all these factors come into play, the move to Empire becomes a necessity.
Jeff in Sa-ra-so-ta!