Hank et all ,
The verticals base impedance is between 45 - 50 ohms.
My issue is that I'm hoping to fit 1ea inductor into the 4"X 4" box at the
base of each vertical.
I have not checked Google yet, but did check the ARRL Antenna Handbook and
my latest ON4UN Topband Book but very little was mentioned.
I guess I could try to use smaller wire on a slightly larger diameter form
to increase the resistance and impedance...
Any suggestions?
Ray,
N6VR/W7YA
On Thu, Jul 15, 2021, 5:40 PM John Jolly <wa7nwl@gmail.com> wrote:
> HI, Ray -
>
> If you do a Google search on 'static discharge bleeders' or something like
> that, there should be a ton of information show-up. Years ago I saw
> inductors, resistors , diodes and combinations of those used on mobile and
> fixed antennas. Gas-discharge devices are a newer option and available
> from various vendors. With inductors, apparently they need to present a
> high resistance at rf frequency but a dc-short at dc - examples and
> discussions are online. Phil Salax has at least one article about how he
> made his. 100uH seems to be a frequently listed value.
>
> 73,
>
> John, N7NWL
>
> On Thu, Jul 15, 2021 at 4:22 PM Raymond Benny <rayn6vr@gmail.com> wrote:
>
>> Here in Arizona, we are in our monsoon season, lots of thunder, lightning
>> and rain. I have built two inductors to put across the base of my homebrew
>> phased 80m verticals feed point. I have a small 4" X 4" weatherproof box
>> at the base with a K9YC CMC enclosed and wondering if the inductors are
>> adequate. They are 3 1/2" long, 3/4" diameter, 20ga enamel copper wire,
>> with an estimated 93 turns. I have used several inductor calculators, they
>> say between 32 and 34 uH.
>>
>> Is these adequate for use as a static discharge coil that will not affect
>> the vertical antenna loading or performance?
>>
>> Thanks for your input.
>>
>> Ray,
>> N6VR/W7YA
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