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December 27th 10, 11:27 PM
posted to rec.radio.amateur.antenna
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Using RG58 for antenna element
On 12/27/2010 12:32 PM, K7ITM wrote:
On Dec 27, 8:46 am, John - wrote: What is the effect of the inner conductor if I am using the shield only for one of the elements of an antenna? That is, the inner conductor is connected to nothing but the shield is driven. Thanks, John Antenna current is on the outside of the outer conductor. The effect of the inner conductor is to add a bit of mechanical strength to the element. In fact, if you use RG-6 with a copper-clad steel inner conductor, that inner conductor will add considerably to the tensile strength of the element, and keep it from stretching so much if it's under tension. You can connect the inner conductor electrically to the outer at one or both ends and it won't have any effect (unless it extends significantly beyond the length of the outer conductor). Cheers, Tom Thanks for the info, Tom. Cheers, John |
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