[600MRG] Short Radial Observation

[D.J.J. Ring, Jr.]

I had the same agreement, but even though Z of antenna did not change after
the #1 radial, the performance. DID change quite a bit.

73
David N1EA

On Wed, Aug 29, 2018, 11:35 Neil Klagge <w0yse at msn.com> wrote:

> Andy, my experience has been similar to Ben’s.
>
>
> Sent from Neil's iPhone
>
> On Aug 29, 2018, at 08:24, Ben Gelb <ben at gelbnet.com> wrote:
>
> Hi Andy -
>
> I'd take 350 feet. I have maybe 8 radials of 20-30 ft each.
>
> Did you do a measurement w/ no radials at all?
>
> My experience was that the first radial (and/or attachment to house
> ground) makes a significant difference (maybe 20 ohms), and its diminishing
> returns after that (maybe an ohm or two of feedpoint Z change).
>
> On Tue, Aug 28, 2018 at 7:09 PM, Andy - KU4XR via 600MRG <
> 600mrg at mailman.qth.net> wrote:
>
>> Greetings all:
>>
>> To start - 350 feet of radial wire is miniscule on 630 meters .. for a
>> few days since getting my new antenna up,
>> I have been experimenting with some short radials underneath the
>> antenna.. I tried running from the ground rod
>> out 50 feet - across 5 feet - and back to the ground rod - then repeat,
>> until that wire ran out.. I ended up with
>> 10 wires - extending 50 feet - covering 45 feet of earth - directly
>> underneath the top loading.. Noticed NO change
>> in any antenna parameter.. Next I am simply running 3 wires - each about
>> 115 feet long from my ground rod,
>> thru my back yard, the ends are about 20 feet apart - so covering about
>> 40 feet of earth.. Still NO Change ..
>> The wire is small guage Aluminum Electric fence wire ( just to add to the
>> record ) .. I have done this same
>> experiment - placing the wires in various locations, and the same result
>> everytime - NO Change in any
>> antenna parameter... not a milliamp of RF current, or a " point " of VSWR
>> change.. Seeing there is no change
>> appearing in any placement; is it a reasonable assumption that this small
>> amount of " wire on the ground "
>> serves no useful purpose to the antenna system ??
>>
>> Thanks, and 73:
>>
>> Andy - KU4XR
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