[OZAPRS] Stupid question - keeping foldable antenna base clean?
dave at horsfall.org
Mon Aug 6 13:08:48 EST 2007
On Mon, 6 Aug 2007, Ray Wells wrote:
> There used to be a "knock-down" adaptor available for commercial mobile
> whips (70-85 and 148-174MHz). One made by AWA (yes, I am going back a
> looong time) comes to mind. The arrangement had a spring loaded ball
> that rested in a vee when the antenna was upright.
I think DSE still has them for CBers.
> Those adaptors were notorious for going open circuit on receive, from an
> oxide film that coated the metal parts. A quick burst of PTT was enough
> to break down the oxide ......... for a while.
There was also a spring-loaded base version as well, with what looked like
an internal braid. I'd hate to think what the constantly-changing
inductance and capacitance did...
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