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Re: [TCML] RF Ground and Brass
In a message dated 3/4/08 10:04:13 P.M. Eastern Standard Time,
>I haven't noticed the 18 awg getting warm, so I'm sure the small length
>from base to terminal is fine. Like everything else, if after running, a
>finds the base current wire warm, then it's time to go bigger (thermal
>are never good). But if it's at ambient temp then "all is good".
But on the other hand, if the grounding wire has too high an RF
impedance, it won't be carrying much current in the first place and therefore won't
even have a chance to get warm. By the same thinking, a piece of nylon fishing
line makes a fine ground wire.
The easy test is probably just empirical. Just keep increasing the
expense of the ground connection until you get a diminishing return on
performance. In my experience, 10 feet of 10ga stranded copper works fine.
Center for the Advanced Study of Ballistic Improbabilities
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