[Lowfer] Short Radial Observation
jrusgrove at comcast.net
jrusgrove at comcast.net
Wed Aug 29 06:31:06 EDT 2018
Andy
Assuming the mobile home is part of the ground system, and the vertical is as close to the mobile home as you had originally planned, it would be reasonable to expect the majority of return current to flow through that path. That said, one would expect some change when adding 115' radials out in different directions. To really evaluate the worthiness of the added radials it would be better to look at antenna R ... while making sure the antenna remains in resonance.
Jay W1VD WD2XNS WE2XGR/2
----- Original Message -----
From: Andy - KU4XR via Lowfer <lowfer at mailman.qth.net>
Reply-To: Andy - KU4XR <ku4xr at yahoo.com>, Discussion of the Lowfer (US, European, & UK) and MedFer bands <lowfer at mailman.qth.net>
To: 1750 Meter lowfer list <lowfer at mailman.qth.net>, 600 meter group <600mrg at mailman.qth.net>
Sent: 8/28/2018 10:09:57 PM
Subject: [Lowfer] Short Radial Observation
________________________________________________________________________________
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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