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re: HD Antenna

Posted on 1/29/19 at 11:32 am to
Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
57426 posts
Posted on 1/29/19 at 11:32 am to
quote:

I had trouble tryin to run multiple TVs off one HD antenna so I just got one for each TV. I believe the signal gets diluted with 2+ TVs.

? - Was I just imaging it?


i have my antenna, non amplified, running to every outlet in my house just fine.
Posted by notsince98
KC, MO
Member since Oct 2012
17954 posts
Posted on 1/29/19 at 1:58 pm to
quote:

I’ve pretty much looked into the longest range antennas I could find through google/Amazon though that one claims 150 miles which is the furthest I’ve seen thus far. If that claim is true then that’s exactly what I’ll get but idk how to attempt to verifiy without just buying the thing

I have a number to call with some people and was gonna talk to them about it as soon as work slacks off a bit


The hardest thing is this is all pretty much line-of-sight. So you have to get the antenna mounted high enough that it can see over the curvature of the earth to see the top of the broadcast tower over 90 miles away.

I'm not sure if there are online tools to help you figure out how high this needs to be and it highly depends on topography between you and the broadcast tower. I have done 100 miles with a yagi-uda antenna but the antenna had to be mounted about 25' above the ground and this was already on a smallish hill.

back in those days many antenna installers had the tools they could connect to an antenna such that they could point it toward the station tower, and just keep raising the antenna until they got a signal and that told them how how to make the mast.

You might call around and see if anyone in your area has experience with this.
Posted by Wishnitwas1998
where TN, MS, and AL meet
Member since Oct 2010
58108 posts
Posted on 1/29/19 at 3:59 pm to
Thanks for the tip, i actually got a local guy’s number earlier today
Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 1/29/19 at 11:52 pm to
quote:

I'm not sure if there are online tools to help you figure out how high this needs to be and it highly depends on topography between you and the broadcast tower. I have done 100 miles with a yagi-uda antenna but the antenna had to be mounted about 25' above the ground and this was already on a smallish hill.


This is a line of sight calculator for antennas, it only allows you to enter the height of one antenna which for the purpose of this thread will be the TV transmitting tower usually 1800-2000ft. The height of your receiving antenna usually only comes into play when there are local obstructions blocking the signal path. Mathematically increasing the height of your receiving antenna is the same as increasing the height of the transmitting antenna the same amount, you can just add the height of your receiving antenna to that of the transmitting antenna and use that in the calculator as the height.

LINK

Posted by HubbaBubba
F_uck Joe Biden, TX
Member since Oct 2010
45710 posts
Posted on 1/30/19 at 4:28 am to
It amazes me the number of people that think you have to put your antenna inside the attic. It's perfectly acceptable and legal put the antenna on top of the roof where God intended it to be. If you're worried about your HOA any rules that they have written into their covenants and restrictions is voided by federal law. If you have any questions about that you can just Google the following: Federal Telecommunications Act of 1997.
Posted by CAD703X
Liberty Island
Member since Jul 2008
77947 posts
Posted on 1/30/19 at 7:51 am to
quote:

It amazes me the number of people that think you have to put your antenna inside the attic. It's perfectly acceptable and legal put the antenna on top of the roof where God intended it to be.
Posted by notsince98
KC, MO
Member since Oct 2012
17954 posts
Posted on 1/30/19 at 8:59 am to
quote:

t amazes me the number of people that think you have to put your antenna inside the attic. It's perfectly acceptable and legal put the antenna on top of the roof where God intended it to be. If you're worried about your HOA any rules that they have written into their covenants and restrictions is voided by federal law. If you have any questions about that you can just Google the following: Federal Telecommunications Act of 1997.


I agree that on the roof is a great place. My parents have had one that way for over 20 years, but....

Having said that, the trees around the house did grow into it and destroyed it about 1 year ago.

It has also been struck by lightning a couple times and did some damage to electronics.

If you can put one in your attic and get good signal quality, that is a great solution. You don't need telescoping masts, guy wires, holes in your roof, etc.
Posted by notsince98
KC, MO
Member since Oct 2012
17954 posts
Posted on 1/30/19 at 9:01 am to
quote:

This is a line of sight calculator for antennas, it only allows you to enter the height of one antenna which for the purpose of this thread will be the TV transmitting tower usually 1800-2000ft. The height of your receiving antenna usually only comes into play when there are local obstructions blocking the signal path. Mathematically increasing the height of your receiving antenna is the same as increasing the height of the transmitting antenna the same amount, you can just add the height of your receiving antenna to that of the transmitting antenna and use that in the calculator as the height.

LINK


While useful, this tool does not take into account any topology issues based on regional areas. If you have some large hills or something in the wrong place, this calculator won't account for that.
Posted by Miketheseventh
Member since Dec 2017
5709 posts
Posted on 1/30/19 at 9:16 pm to
That is my setup exactly. This antenna with a signal booster. In Hammond i get all the BR stations along with a couple out of Nola
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