Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 06-30-2014, 10:46 AM   #1
Newbie
 
Join Date: Jun 2014
Posts: 2
Rewards Points: 10
Default

CATV Home wiring; OTA Antenna and Comcast Internet


With last week's Supreme Court decision killing Aereo, we now wish to try an attic antenna for our OTA TV. We're in southern New Hampshire 38 miles in the same direction to all the Boston TV towers so I think an attic antenna will work. My questions concern house CATV wiring.

Our 20-year-old home (we've been there a year) is wired for CATV into most rooms. With a half-dozen CATV wires all terminating on the inside garage wall opposite the outside Comcast terminal, it appears all wired rooms run individually from this central spot.

We wish to keep Comcast for internet. The wireless router is in a room where we do not have TV so that room's internet run can be a dedicated line, isolated from the rest of the house's CATV wiring (which I believe is essential... correct?).

Now my core questions. Can I run the attic antenna output cable to the nearest upstairs bedroom CATV plate, and use a splitter there to get that signal into the whole-house TV "network" (except for the isolated internet room)? Or must I run that antenna feed all the way down to the service entry point in the garage and then feed back to the two rooms needing TV? The former would involve way less wiring if it is an acceptable approach. I view the CATV network as a big spider web, and all I need to do is get the signal into the closest point on the web to the signal source in the attic... right?

Thanks for any advice.

hriehl1 is offline   Reply With Quote
Old 06-30-2014, 02:43 PM   #2
Newbie
 
Join Date: Apr 2013
Location: Whittier, California.
Posts: 16
Rewards Points: 10
Default

CATV Home wiring; OTA Antenna and Comcast Internet


Hello. You can do what you want to do. If you are not going to have a tv in the room where the attic antenna is coming in, just use an F81 barrel connector. Find the two lines to the two rooms at the demarc, hook them all up with a splitter. You might need to ground that antenna btw, as well as maybe needing an amp, depending on your signal from the air, and the loss to your tv. Good luck.

darkomega69 is offline   Reply With Quote
Old 06-30-2014, 03:09 PM   #3
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 14,271
Rewards Points: 2,204
Default

CATV Home wiring; OTA Antenna and Comcast Internet


Basically you need to make the incoming Coax from Comcast with no splitters to the modem. All of the other wiring can stay connected to the splitter that Comcast installed. The Coax from the antenna will go into the "In" side of the splitter.

Just keep in mind that depending on how far you are from the towers. Your mileage will vary on having the attic install.

I can get good signal up to 60 mile away with my setup. I had to use a VHF Hi antenna for one of the locals in my area. A UHF for the others.

Check at tvfool.com for what your local area is like for signals, before deciding to go this route. Initial costs alone to go with a OTA antenna can run anywhere from $200-400, depending on the antenna(s) and pre-amp. Then add in a OTA DVR. Which can cost you upwards of $500 just for the DVR.
__________________
Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?
gregzoll is offline   Reply With Quote
Old 06-30-2014, 03:57 PM   #4
Newbie
 
Join Date: Jun 2014
Posts: 2
Rewards Points: 10
Default

CATV Home wiring; OTA Antenna and Comcast Internet


Gregzoll... my core question is must I run from the attic antenna 50 +/- feet down to the garage service feed and then back up to den and bedroom... or can I just tap into the TV circuit at the closest point to the antenna, in a second-story bedroom?

The latter seems to get the signal into the TV circuit with the shortest overall wire run... but I'm asking in case there's some other property about CATV wiring that requires I start feeding the input signal at the home's service feed.
hriehl1 is offline   Reply With Quote
Old 06-30-2014, 04:24 PM   #5
Member
 
dmclean701's Avatar
 
Join Date: May 2013
Posts: 185
Rewards Points: 150
Default

CATV Home wiring; OTA Antenna and Comcast Internet


just use an F81 barrel connector.
See darkomega69 response. The coax is just like a pipe, you can run the signal in either end and get it out from the other. Just remember that the passive splitters cause a loss of signal each time they are inserted. If the OTA signal is weak even one splitter may make the output un-usable.
dmclean701 is offline   Reply With Quote
Old 06-30-2014, 04:50 PM   #6
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 14,271
Rewards Points: 2,204
Default

CATV Home wiring; OTA Antenna and Comcast Internet


Quote:
Originally Posted by hriehl1 View Post
Gregzoll... my core question is must I run from the attic antenna 50 +/- feet down to the garage service feed and then back up to den and bedroom... or can I just tap into the TV circuit at the closest point to the antenna, in a second-story bedroom?

The latter seems to get the signal into the TV circuit with the shortest overall wire run... but I'm asking in case there's some other property about CATV wiring that requires I start feeding the input signal at the home's service feed.
Did I not state that in my reply. The problem is that you will most likely need an amplifier. That you can get from Solidsignal.com, along with everything else you need (antenna, pre-amp, mount, pole).

__________________
Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?
gregzoll is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cable wiring for antenna + internet hyunelan2 Home Theater 20 10-17-2010 11:28 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.