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Mounting OTA Antenna to existing DirecTV J-mount?

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Old 05-16-2011, 08:08 PM   #1
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Default Mounting OTA Antenna to existing DirecTV J-mount?

Because of the economy, I can no longer afford DirecTV's service, which currently costs me $107/mo. for 4 TVs, 3 DTV boxes, and 1 DVR. I've decided to use a combination of an HD OTA Antenna and Netflix to provide a low-cost entertainment solution.

Today, I assembled my new Clearstream4 antenna and proceeded to mount it on the existing DirecTV j-mount. Unfortunately, the 2" DTV j-mount only has about 4 inches of available pole space and my antenna requires at least 12 inches. Quite frankly, 24 inches would be better, just in case I decide to add a VHF antenna later.

How can I extend the DirecTV mount to accommodate the new antenna?
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Old 05-16-2011, 08:30 PM   #2
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Originally Posted by kcrossley View Post
Because of the economy, I can no longer afford DirecTV's service, which currently costs me $107/mo. for 4 TVs, 3 DTV boxes, and 1 DVR. I've decided to use a combination of an HD OTA Antenna and Netflix to provide a low-cost entertainment solution.

Today, I assembled my new Clearstream4 antenna and proceeded to mount it on the existing DirecTV j-mount. Unfortunately, the 2" DTV j-mount only has about 4 inches of available pole space and my antenna requires at least 12 inches. Quite frankly, 24 inches would be better, just in case I decide to add a VHF antenna later.

How can I extend the DirecTV mount to accommodate the new antenna?
Connect a short 24" mast to it. A standard 1 1/4 or 1 1/2 mast should fit inside the current mount, drill a hole through both and put a bolt through them...
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Old 05-16-2011, 10:34 PM   #3
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Connect a short 24" mast to it. A standard 1 1/4 or 1 1/2 mast should fit inside the current mount, drill a hole through both and put a bolt through them...
The mount is on a 15-20' roof. Do you think 24" is enough or should I raise that baby up even further?
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Old 05-17-2011, 12:55 AM   #4
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The mount is on a 15-20' roof. Do you think 24" is enough or should I raise that baby up even further?
Higher is usually better...
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Old 05-17-2011, 10:39 AM   #5
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Just remember that the J mount was designed to hold about 4 pounds of LNB and dish at 24" from the mounting bolts. Adding 24" or even more distance and additional weight (and wind loading) changes the load on the bolts and mounting hardware.

Would not be a bad idea to beef all of that up if you extend the length...
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Old 05-17-2011, 02:49 PM   #6
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Do you have other points on the roof that might accomodate a chimney mount, eave mount, tripod? I used an existing J-pole from a satellite I discarded to put an ominidirectional FM antenna on - very light and no bigger strain than the old dish. Those satellite dishes are all positioned to face SW and often as low on a roof as possible. Your OTA signals might come from different directions and be blocked by the roof peak. Just my two cents' worth...
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