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Sanjaya wrote:
"RHF" wrote snip Installing Ground Rods the Easy Way http://www.cosjwt.com/index.php?a=16 The link above contains this quote: "At RF frequencies it is almost pointless to expect a ground rod like this to do much good; Only a system of radial wires will help (This will be proven in a later article on this site). For the sake of argument, however, let's assume the ground rod will help. Unlike lightning which can and will arc between two conductors, we need a low ohmic connection for RF antenna currents. Thus only a wire soldered or brazed to the ground rod makes sense." Is he saying a ground rod won't improver reception? Ideally you want the most conductive surface area you can get in the ground. That's why more ground rods are better than one, particularly for transmitting purposes. But one rod is usually enough for receiving if the ground has average conductivity. In a dry area like the desert, it may well require many horizontal radial rods or even copper sheet metal buried in the ground to get a decent RF ground. |
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