I understand that 120 radials is the golden standard. At what point is there no significant improvement? How much worse is 60 radials? How much worse is 24 radials (4 of 1/4 lambda and 20 or 1/10 l
w0btu.com/Optimum_number_of_ground_radials_vs_radial_length.html Check the links on that page to N6LF, Rudy Severns' pages. His work has been called the gold standard of radial science. 73, Mike www.
N6LF has done quite a bit of actual testing of various in ground and elevated radial systems. See: http://www.antennasbyn6lf.com/ K3LC has done extensive modeling of both in ground and elevated radia
I understand that 120 radials is the golden standard. At what point is there no significant improvement?>>> 120 radials never was a gold standard. The FCC said if a AM BC station uses something like
Jerry Sevick, W2FMI, has an interesting comment about the "120" number in his book, "The Short Vertical Antenna and Ground Radial." At the end of the first chapter he notes: "...it should be mentione
Jerry Sevick, W2FMI, has an interesting comment about the "120" number in his book, "The Short Vertical Antenna and Ground Radial." At the end of the first chapter he notes: "...it should be mentione
For anyone interested in modeling a vertical with a variable number of radials you might refer back to this post: http://lists.contesting.com/archives//html/Topband/2013-04/msg00017.html Near the bot
The r-f loss at the operating frequency in a set of buried radials varies with the conductivity and permittivity of the earth in which they are buried. The NEC4.2 study below shows that for poor eart
That's a lot of good information, Richard! Thanks for sharing! 73, Charlie, K4OTV The r-f loss at the operating frequency in a set of buried radials varies with the conductivity and permittivity of t
73, Charlie, K4OTV The whole topic of radials as it applies to me on my small lot is "put in as many as you can". The same probably applies to others on small lots. On top band I do not have room in
Besides "optimim number(s)," I wonder if there is supporting analysis for the connection of the radial ends?? I have around 80 elevated radials that range from 50 foot lengths, running east and west,
While Tom touched on the subject yesterday the subject of an individuals ground conductivity has to be stressed, continuously it seems. The FCC maps arent perfect and hams usually dont have the optio
Hi, Bill Well, like you, I also live on a fairly small city lot with way too much bedrock coming up to the surface and a long concrete driveway, so buried radials just aren't feasible for me! So I hu
Yeah, just a few elevated resonant radials can work wonders as you have discovered, Carl! And rock does get in the way of buried radials!! The models teach that elevated resonant radials should work