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What is the make and model number of the antenna that is in the attic??
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With the Tv antenna in the attic the most likely cause of declining reception is/are , weather related , snow and ice , atmospheric conditions , the antenna is in the attic , Tv signals about 60 miles distant , Tv signals are very weak signal strength , edge path obstructions .
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The Current Tv channels that are being Transmitted and Received in the , USA , Canada , Mexico , are
VHF low band channels , 2 thru 6 .
VHF high band channels , 7 thru 13 .
UHF band channels , 14 thru 51 .
Looking at the tvfool radar report and channel list for the Digital Current Plus Pending Applications Included , the Real Channels list column , shows receivable Digital Broadcast Tv stations/channels in all 3 channel bands.
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For improved and reliable reception install above the Peak of the Roof in such a manner that the reception is not , obstructed , impeded , blocked , by the roof and building in the directions of , South West , West , North West , North East , South East .
Install a ,
http://www.channelmasterstore.com , CM5016 All channel antenna aimed at about 234 degree magnetic compass direction.
Here is how to aim antenna ,
http://www.kyes.com/antenna/pointing/pointing.html.
Use a Real and Actual magnetic compass to aim antenna.
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Test reception without the antenna system amplifier.
Disconnect and Remove all parts , amplifier , power injector , power supply .
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Here are some above the roof antenna mounts.
http://www.ronard.com/909911.html.
Use the , ronard(911) , 5 foot tripod antenna mount.
http://www.ronard.com/34424560.html.
Use the , ronard(4560) , eave antenna mount.
http://www.ronard.com/ychim.html.
Measure around the chimney and use a , ronard(2212) , ronard(2218) , ronard(2224) .
By the ronard antenna mounts at ,
http://www.solidsignal.com , by typing , ronard(x) , in the solidsignal search box or buy from ,
http://www.ronard.com.
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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 splitters at ,
http://www.solidsignal.com.
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Here are some places the buy antennas and etc. .
http://www.solidsignal.com.
http://www.amazon.com.
http://www.channelmasterstore.com.
http://www.ronard.com.
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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 in the directions of reception including your own roof and building.
Some and not all Negative Effects are
Absorbing , Blocking , Reception
Multi-Path Reflecting Tv signals bouncing all around.
The Best Practice 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 roof and house.
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The Tv/s Must Channel Scan for the , OTA=Over The Air , Digital Broadcast Tv stations/channels often named the ~ DTV Channels ~ Antenna Channels ~ Air Channels ~ in the Tv Setup Menu because the Tv transmissiuons travel through the Air from the transmitting antenna to the receiving antenna.
Some digital tv's will Automatic channel scan for cable tv channels.
DO NOT channel scan for cable tv channels.
Go into the Tv Setup Menu and select ~ DTV Channels ~ Antenna Channels ~ Air Channels ~.
Scan for channels.
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Digital Tv tuners can develop - Digital Glitches - that are not cleared out with simple channel scans.
Clear Tuner with Double Rescan.
http://www.wchstv.com/DoubleReScanAlert.pdf.