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Antenna Discharge Unit ?

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Old 04-11-2008, 09:24 PM   #1
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Default Antenna Discharge Unit ?

Im getting ready for my first-time-ever antenna installation. I'm in the 77566 zip code.

Winegard HD8800 (8-bay bow-tie)(I'll be adding a hi-band VHF later), Winegard AP8700 VHF/UHF pre-amp. 5 ft piece of Radio-Shack antenna mast (good stuff, thanks for the tip, Rick), and a Channel Master 3ft tripod. All thats going on the peak of my 2-story house, much I'm sure to the chagrin of my neighbors.

While struggling to align my ducks in the grounding department, I've stumbled accross something I found so interesting that I thought I'd share...

If you get into "the code" (810.20), you'll find out that you need something called an antenna discharge unit.

If you google "antenna discharge unit", you'll come accross a link to "Video FAQ - Antennas, TV's and Accessories" (support.radioshack.com).

The following is taken from that link:

ANTENNAS
General Questions
Product: Antenna Discharge Unit
Question: Do you have an Antenna Discharge Unit available?
Answer: We regret RadioShack does not carry an antenna discharge unit at this time, nor are we aware of a source for this item. We can only suggest that you contact a specialized satellite dealer.

Radio Shack does however sell something called a 2.4GHz Single Grounding Block (Catalog # 15-9123).

Interesting.
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Old 04-14-2008, 08:38 AM   #2
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Default

This had confused me for a while, and I had a hard time finding *anyone* who could give me specific details on grounding. I finally settled on grounding my mast to the grounding rod by my electric meter, and using a grounding block (tied into the same rod) for the coax coming down.

If you find hard evidence that the ADU is required in addition to what I mentioned above, please let us know. I don't think anyone intentionally disregards grounding, but until there is a precise guide, we'll have to use our best judgment.
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Old 04-14-2008, 08:47 AM   #3
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Default Also called a antenna grounding block

http://www.nojolt.com/lightning_prot...antennas.shtml
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