KF7K
| Joined: | Mon, Apr 7th 2003, 14:05 | Roles: | N/A | Moderates: | N/A |
Latest Topics
| Topic | Created | Posts | Views | Last Activity |
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| Vertical Antenna on Metal Roof: DC Ground to the Electrical Service Mast? | May 27th 2012, 03:59 | 3 | 9,147 | on 11/6/12 |
Latest Posts
| Topic | Author | Posted On |
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| Vertical Antenna on Metal Roof: DC Ground to the Electrical Service Mast? | KF7K | on 27/5/12 |
| I'm thinking of putting a multi-band trap vertical antenna in the middle of my metal-shingled house. I'll use radials laid over the roof as the RF ground system, but I am considering using the electrical service mast, only 8-10 feet away from the vertical, as a DC ground for the feedline lightning arrestor (there is a second ground point at the bottom of the feedline, just before it enters the house-grounded into a ground rod). Will my plan make the power company mad? Is my plan just asking to pull household EMI into the antenna? Will a ground at the antenna make my house-wide electrical ground act like one huge radial? I guess my question, deep down, is the role of the coax shield--how do I tell if it has lots of RF voltage on it relative to the house ground? Both are grounded to a rod, just at different places, but I know RF doesn't act much like like DC, and sadly I think in terms of DC. |
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