Re: Can twisted wire replace shielded wire?

On Tue, 29 Nov 2005 10:49:38 +0000, Jasen Betts wrote:

>
>>>What matters is the speed of light in the dielectric *between* the
>>>conductors. That's where the traveling electromagnetic wave is.
>>
>> So if all we have is a bare wire no current can flow?
>
> noot sure what you mean:
>
> 1 > air is a dielectric (ie generally non-conductive)
>
> 2 > a solitary bare wire is an antenna, not a transmission line :)
>

If you have a feedhorn that has an impedance of 377 ohms at the open
end, it's called the "launcher", and your wire is a "G-line". :-)

Cheers!
Rich


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