Hey there,
My situation is similar to:
http://forum.tvfool.com/showthread.php?t=8916
I'm in NYC (Brooklyn) too and am about to mount a Antennacraft HBU22 on the roof of our building. It's a 4 story brownstone with nearly direct sight of the Empire State from the roof.
My question is - what's the best way to ground the antenna and/or mast? I'm I don't have any actual dirt anywhere around the building - we live in a concrete jungle! I don't see any of the antennas or dishes on our roof currently grounded. Is it neccessary? I was going to buy a grounding block and send a ground right before it enters my window on the second floor. But it's in an interior shaft and doesn't face the street. I might be able to send it back over the roof and towards the street.
Other options are a fire escape that doesn't touch the ground or potentially sending it down into the basement of the building where the pipes are.
Any suggestions?
Thanks!