That's the way I do it, but use radials 180 degrees apart. (I only use two
elevated radials and gamma feed the grounded tower.
Chuck W5PR
On Saturday, February 27, 2016, Robert Harmon <k6uj@pacbell.net> wrote:
> I use four elevated radials for 80m. What I did was hook up my analyzer
> to each pair, 90 degrees from one another, without connecting anything
> else tune for resonance (just like a dipole, which it essentially is) Then
> connect them all together to the vertical antenna feedpoint coax
> connection. This worked very well, do I have equal currents in each radial
> with this approach ?
>
> Bob
> K6UJ
>
> On 2/27/16 9:32 AM, Dennis W0JX via TowerTalk wrote:
>
>> The effect of the earth on the radial generally is to detune it and make
>> it longer electrically than it is. Perhaps Frank W3LPL can add something
>> here as to why he recommends 70 feet.
>> As for elevated radials. many studies have concluded, going back as far
>> as Les Moxon, that quarter-wave elevated radials are about the worst
>> possible length you can make them. This particular length makes it very
>> difficult to obtain equal currents in each radial. Dick Weber, K5IU, wrote
>> an excellent article on this topic, stating that ideal lengths are 60
>> degrees (or about 2/3rds of a quarter wavelength) loaded by a single small
>> coil, or 120 degrees (about 4/3rds of a quarter wavelength) tuned by a
>> variable capacitor, are ideal lengths. Of course, a multi-band vertical
>> complicates matters and would require a loading coil for each band.
>> 73, Dennis W0JX
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