I'm putting out 60 1/4 wave radials for my 160m Inverted L on the ground. 4-5 of those radials will end up in my pond with anywhere from 5-10 feet to 25 feet in the pond for those 4-5 radials. The po
Guy Olinger posted: ...The very same NEC 4.2 with raised quarter wave radials over routine real life ground made of dirt will show field intensities in the ground. (etc etc) _______________ Sorry, bu
(C) How many elevated radials are "just enough"...? Depends on how many dB you want to throw away. If you can, do 12 to 16. 32 is the kill-the-loss, never-look-back number. ____________ The link belo
Elevated radials avoid a collection of lossy mistakes that one finds in less than optimal buried/on groundradials. If a full size radial system is done properly, dense, uniform all around, you will
Grant, you should consider putting in an additional 23 radials and put the radial system on or in the ground. This will eliminate any possible detuning by the big metal building and interaction with
Real data: I am presently using a 30' base loaded vertical. The ground system consists of 90 radials from 12 to 25 feet. The base referred ground loss is 10 ohms. ____________________________________
Thanks for the link! Key phrase for me, which does agree with the table in the ARRL books: "Obviously you're much better off to using thirty two 1/8-wave radials as apposed to a smaller number of lon
In fact I had my ARRL Antenna book (a mid-90's edition) in front of me at the dinner table last night and I think I saw the exact same table. My feeling based on some less than quantitative tests is
While Im not in a high lightning area we do get some beauties plus Im on top of an exposed hill. The #18 insulated and stranded used on the old Beverages was fine when removed after 20 years and reus
Tnx again Tom. K7HP modeled this too and is saying exactly what you are saying. As soon as the leaves fall off the trees (which will be soon here in upstate NY)I will clean out the area beyond the st
Tom, Thanks for the info. This is what I was looking for - info from someone who has modeled the radials and/or actual experience with measurements. Going over the wall simplifies things for me both
I can run a NEC simulation tomorrow to see how much radials up and over affect things. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
Not enough room for towers and radials? Antennas aren't big enough? Here's an employment opportunity to work on ELF antennas at the 2 megawatt U.S. Navy NAA transmitter in sunny, warm Cutler, Maine.
HMMMMM!!!!!!!! If that is the case, WHY do the pro broadcasters install all 120 radials at full length; even bare wire buried a couple of inches underground? Inquiring minds want to know where this c
When I sent out a recent email about the 160m inverted-L I was finishing with four ¼ wavelength (130?) radials, I got a few responses back indicating that I should cut them in half and double them. S
Everything I read says that it doesn't make any difference whether it is insulated or not. One good idea I saw for getting the radials hidden is to use a lawn edger to make a narrow slot. For your dr
I live in southern Wisconsin, clay soil, and have been using the modern Oatey brand "No Lead" plumbing solder for all outdoor soldering. I've been using the Oatey plumbing solder ( sold by Home Depot
Thanks all for the answers... I am working on collection the materials for the project, so all feedback is very important for me, thanks. Just was thinking, is the same or better to have 120 radials
YES. My 160M Tee vertical is about 20 ft from the building that houses my shack, so there are only very short radials in that direction, which happens to be toward JA and VK. I have about 60 much lon
A careful reading of Rudy's piece does show that in a situation where you are, and must remain, totally compromised throughout a 180-degree sector, i.e., with zero radials, you can at least pick up f