I generally agree with you, Bob - especially with regard to not grounding the far ends of 1/4 wave radials!! After all what we are trying to establish is a low-impedance "image plane" for the vertica
HI, RANDY... TOM, W8JI, HAS GIVEN YOU SOME GOOD INPUTS. WHAT YOU DO WITH HALF A DOZEN OR SO OF THE RADIAL ENDS PROBABLY WON'T RESULT IN ANYTHING MEASURABLE. I THINK IT IS GREAT THAT YOU HAVE THE REAL
Author: "Charles W. Shaw" <charleswshaw@gmail.com>
Date: Fri, 01 Mar 2013 19:46:00 +0000
Eddy, I've been using a 85-foot high T-Top vertical with four elevated radials (about 19 feet high) sloped up from the ground level feed point, since the fall of 1994. This antenna is supported by a
Charlie, I will post my results. I had a vertical dipole up before and now am using the 40M GP. The vertical dipole "seems" to be the best performer for DX but what does that mean, hihi. I thought I
It is precisely the high measured levels with merely 2 radials that gives me pause. After publishing the FCP I get new stories almost on a daily basis. It's very common for two elevated radials to pe
Hi Brendan, You'll have an arcing problem if you lay chicken wire directly on radials with no insulation. You could avoid this if you bond the radials to the outer edge of the chicken wire, but this
Tom, I think I see your point. From the limited experimentation I have done so far, I can assert that the ground topology at the site is very obviously varied. For example, one radial (the one that s
Re the discussion about elevated radials: I've always considered "elevated radials" to be radials which are completely above ground and horizontal, and that the antenna feedpoint is also elevated to
To: <topband@contesting.com> I have this data also Carl. Boy do I have stacks and stacks of this stuff I've spent hundreds of hours going over! That's a pretty poor test. I would never use data like
I would expect that after X number of elevated radials it becomes moot. Height and ground conductivity determine the actual number. For my poor ground and 20' elevation it was somewhere around 24 bas
The recent "trimming elevated radials" thread prompted me to re-read the N6LF QEX two-part article "A Closer Look at Vertical Antennas With Elevated Ground Systems", available here: http://rudys.type
ON4UN's series of books have always had way too many individual assumptions and we all know what happens then. Those books offer a place to start and then apply your own unique soil and local conditi
Forgive me, please, if I'm re-hashing a bit of the "...same-old, same-old" here, but I am really curious as to any "real world" experiences that might be out there in the matter of elevated radials,
Hi Guys, Forgive me, please, if I'm re-hashing a bit of the "...same-old, same-old" here, but I am really curious as to any "real world" experiences that might be out there in the matter of elevated
Hi Guys, Forgive me, please, if I'm re-hashing a bit of the "...same-old, same-old" here, but I am really curious as to any "real world" experiences that might be out there in the matter of elevated
Jim, I will post the results here on the reflector. Note the changed subject for this thread to cover this activity. We have drifted away from the original thread. Yes, please share your results on t
Just an out of the box thought... Anyone guess what would happen if the radials going over the wall were coax shielded ? Signed, Anonymous :-)) ... Tony, no need to fret about drilling.
Tony, If snaking one or more wires under the fence isn't feasible, I would simply run a buss wire around the base of the stone wall to the nearest opening and then back down the other side. Attach yo
Richard, With great respect and a smile and as much friendly courtesy as I can possibly muster via this infernally clueless medium of email. :>) I am quite jealous of the fingertip access you seem to
'allo, Dear Rob and Fellow Topbanders, As I understand the theory of radials, there is a need for lots of wire close in to the feed point under a vertical or inverted-L antenna to handle the return c