040513 2051 - Dan posted:

Hi,

I live in a 44 year old apartment building in Manhattan. I'm currently
doing renovations and I've removed an old, dented, paint-encrusted TV
antenna wall jack from the living room. I'd like to replace it with
its modern equivalent so I can use the building's roof antenna for
HDTV and FM radio reception.

I don't know exactly what this thing is or how to replace it properly.
Ideally I'd like to have a standard 75 ohm coax output. Any help would
be appreciated. Here's a description of the old jack:

The jack accepts 2 coax cable inputs at the back. and provides 2 screw
terminal outputs on the front. The screw terminals on the front are
presumably for the old standard 300 ohm TV wiring. Here's a
schematic:

COAX 1 COAX 2
| |
| |
resistor 1 no connection
|
|
resistor 2 no connection
| |
| |
screw terminal screw terminal
300 ohm 300 ohm

Please reply to dschwarz but do not spam me - my email domain is
verizon dot net.

Thanks,

Dan

Here is the Winegard WebSite, with a selection of splitters and wall
outlets. If the system you described is part of a complete distribution
system for the apartment building, removing the wall outlet will eliminate
the signal to the outlets after it. It sounds like the outlet that you have
is a feed thru outlet that comes from an outlet either above or below --
probably above -- and then continues the signal on to the next outlet. You
could send an Email to the Winegard company and let them know what you want
to replace and then go from there. Instead of the screw terminals for the
300 ohm cable outlet, you could go with the 75 ohm coax output. Be sure you
ask for the feed thru type outlets.

http://www.winegard.com/offair/splittersoutlets.htm