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The tvfool radar map shows the 2 Main directions of reception at your reception location are , South West and South East.
Above the chimney install a.
http://www.antennacraft.net.
HBU33 antenna.
Aim the HBU33 antenna at about 230 degree magnetic compass direction.
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Here is how to aim antennas.
http://www.kyes.com/antenna/pointing/pointing.html.
Use a Real and Actual magnetic compass to aim antenna , do not trust a , cell phone , tablet and etc. compass.
As always , the antenna aim and location can be adjusted for best reception.
Most Digital Tv's have a Signal Strength Meter and some Digital Tv's also have a Signal Quality Meter.
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Here are above the chimney antenna mounts.
http://www.ronard.com/ychim.html. Measure around the chimney and use a , ronard(2212) , ronard(2218) , ronard(2224) .
http://www.ronard.com.
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Home Depot has , 10 foot 6 inch length , 1 and 3/8 inch diameter , TOP RAIL , chain link fence , PIPE , that makes good antenna mast/pipe , the price is low at about 12 dollars.
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As a Test of reception I recommend test reception , without and with a antenna system amplifier.
When testing with a antenna system amplifier.
Install a.
http://www.antennacraft.net.
10G201 preamplifier.
When testing reception with out the antenna system amplifier , No parts of the antenna amplifier will be connected , the preamp unit will not be connected , the power injector will not be connected , the power supply will not be connected.
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As a Test to Prove Reception , connect a New Continues Length of RG-6 Coax to the antenna above the chimney and Run the New Continues Length of Coax through a open door or window direct to 1 Tv.
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The Tv Must Channel scan for the , OTA=Over The Air , ATSC Digital Broadcast Tv Stations Channels , often named the ~ Antenna Channels ~ ATSC Channels ~ DTV Channels ~ Air Channels ~ in the Tv Setup Menu because the Tv transmissions travel through the Air from the transmitting antenna to the receiving antenna.
Do Not Channel Scan for Cable Tv Channels.
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For all outside coax that is exposed to the weather use , RG-6 coax that has the , Compression Type Connectors on the ends of the coax , the reason is the compression type connectors is to keep water out of the , connectors , connections and coax and the devices that are connected.
Do not use the old type of crimp type connectors on the ends of the coax.
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If reception is Ok.
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Then can connect and use the coax that is in/on the house.
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If reception Degrades to the point that their are reception problems at one or more Tv's when the coax that is in/on the house is connected , then coax and other devices that are in/on the house are most likely the problem.
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For 1 Tv connected use No splitter.
For 2 Tv's connected use a , Holland Electronics , HFS-2D , 2 way splitter.
For 3 Tv's connected use a , Holland Electronics , HFS-3D , 3 way splitter.
Buy the , HFS-2D , HFS-3D , splitters at ,
http://www.hollandelectronics.com , or ,
http://www.amazon.com.
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Also know this.
As always , trees and tree leaves , plants and plant leaves , have a Negative Effect on Broadcast Tv Reception and so do buildings and other obstructions including your own , attic , roof , building , in the directions of reception.
Some and not all Negative Effects are.
Absorbing and Blocking Reception.
Multi-Path Reflecting Tv Signals Bouncing All Around.
The Best Practice for Reliable is to install the antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including your own , attic , roof , building , in the directions of reception.
Also if avoiding obstructions in the directions of reception means installing the antenna some where other then the , attic , roof , building , then install the antenna at the better location.
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Yes the first reception Test location is above the chimney of the house.