Along a similar line...
I fought poor performing Beverage antennas for abt 2 years, before I found the
problem. The black plastic boxes I used to house the transformers at the
antenna feed were conductive. I put the stainless hardware directly thru the
plastic, after all it WAS plastic!
Found out that these boxes were Delux Lista brand parts bins for their Line of
cabinets. They had carbon in the mix because they were intended for storing
static sensitive components.
Check EVERYTHING!
73 de Steve, NR4M
On Oct 7, 2013, at 12:00, Ron Youvan <ka4inm@gmail.com> wrote:
> On 10/07/2013 11:06 AM, donroden@hiwaay.net wrote:
>
> /*snip*/
>> I insulted it off the concrete floor with 1 foot wide rubber mats.
>
>> It neasured 30 ohms to AC power common.
>
>
> > Turns out that there was enough carbon black in the rubber for it to be
> > conductive.
> /*snip*/
>
> A friend asked me to test the vinyl jacket on common RG-8/U to see how good
> an insulator it is, because I have a Hi-Potter (to 45 kV) at work. I
> couldn't test it, it is way too leaky to test, obviously for the same reason.
> --
> Ron KA4INM - Youvan's corollary:
> Every action results in unwanted side effects.
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