The chimney is a Ok place to install a antenna , here are some chimney antenna mounts.
Measure the chimney and install a , ronard(2212) , ronard(2218) , ronard(2224).
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Looks like the land rises higher past the palm trees.
Recommend install a antenna above Peak Of Roof to get a little more antenna height.
Here is a above the roof antenna mount.
http://www.ronard.com/909911.html.
Use the ronard. ronard(911). 5 foot antenna mount.
Buy the ronard antenna mounts at solidsignal by typing , ronard(x) , in the solidsignal search box or buy from ronard.
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Here are some places to buy antennas and etc. .
http://www.solidsignal.com.
http://www.amazon.com.
http://www.winegarddirect.com.
http://www.ronard.com.
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The Digital Broadcast Tv stations/channels are Weak Signal Strength at your location.
Recommend install a Big All Channel Antenna.
Install a Winegard HD7084P All Channel Antenna aimed at about 321 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
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Install a Winegard AP8700 preamp.
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For 1 Tv connected use no splitter.
For 2 Tv's connected use a , HFS-2D , 2 way splitter.
For 3 Tv's connected use a , HFS-3D , 3 way splitter.
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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 'Air Channels' or 'Antenna Channels.
Scan for channels.
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Some satellite systems will accept and distribute Broadcast Tv stations/channels via the satellite system hardware passive and active componets.
And some satellite systems Will Not.
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To avoid situations/problems with connecting the antenna system up.
I recommend discontinue satellite service.
And Disconnect and Remove remove All passive and active satellite system componets such as and not limited to , multi-plexers , multi-switches , splitter , combiners , amplifiers , power injectors , powers supplies , and etc. .
-->YES the satellite system coaxes and other coaxes that are in/on the house can be used for the Broadcast Tv antenna system.