Roofing materials like shingles concrete and especially metal roofing can significantly weaken or sometimes completely block the signal from passing through.
How much signal block from anenna in the attic.
The kb9vbr 2 meter j pole antenna is 69 inches tall overall.
It s best to try to place the antenna in a position so the line of sight from the tv transmitters to the antenna is not block by any of the above mentioned materials.
Tv antenna elevation will also play a role in signal strength.
I m running the amplified signal from the attic to the basement and then distributing to 3 tvs.
By now you know that the building materials are a big factor.
The material can be metal or pvc.
Disadvantages of mounting antenna in attic.
In general you can lose up to 40 50 of your signal s strength from an attic installation due to the loss from roofing materials but with proper installation and the right antenna you can overcome some of this loss and be successful.
What is the typical signal propagation loss to be expected from a 2 meter 70cm j pole antenna mounted in an attic where the roofing material is the common 5 8 plywood and asphalt shingles compared to the same antenna mounted outside at the same height.
Signal loss attic installation vs.
My samsung tvs show signal strength for each channel and they all show 30 80.
The ge 20431 futura outdoor indoor attic tv antenna is one of the best looking options on the market.
Also i don t know if bad weather will affect the signal.
An example is the use of radiant barrier in your attic or roof which reflects heat by means of a layer of shiny aluminium foil.
To put it differently the only major problem with 1byone ous00 0551 is its size.
If your house has a tin or steel roof then the attic wouldn t be much of an option.
The very material that shields you from outside temperatures can hinder signal reception.
Provided you have a large attic or don t mind putting it on the roof we don t see any reason not to give this model a shot.
Blocked signal to some extent.
We had the spray on kind in the attic.
1 conduit makes a great antenna mast.
The only concern with attic mounted antennas is the space available to you for mounting.
You will need a peak in your attic that is tall enough for the antenna to fit.
Here is our tvfool to give you a comparison.
However there are a few drawbacks to mounting antenna in this way.
It s 60 80 feet of coax from the antenna to the tvs.
Is it of the magnitude of reaching only half the distance or is the loss less significant.
There was an amplifier which i put between the antenna and the splitter which split the signal to all the coax outlets in our house.
I believe we had it set up with a 4 way splitter.
How much loss can be expected.
Unfortunately this can also block your tv reception forcing your hand in setting up the antenna on the roof.
I have not tried the antenna without an amp.
