The very best RBN comparisons are for an entire contest, between two stations in the same metro area, or same part of a state, in the same general geographic category. There is an RBN beta graph func
I'll have to counter that the two radial figures in your quoted RCA study are not about defining what goes wrong with minimalist and miscellaneous downward extrapolation of dense and uniform radial s
This is only true to any degree if you are talking about buried, BARE radials. If also uniformly spaced, elevated or insulated radials make use of uniformity to achieve a degree of loss-avoiding fiel
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
Much closer to the heart of it now... Interspersed. That's my question, and my answer that it does NOT. But many hams by references to these studies are incorrectly assured that a few on ground or bu
To see the RBN, go to http://reversebeacon.net/srch.php Type in N3ND, hit enter. Look for the 160m spots around 03z 15 Nov. The 03z spots are at 400 watts. The 00z spots were at 100 watts, before t
This antenna started out as a "U", but in trimming it back to resonance (folded counterpoise plus isolation transformer plus antenna length), the down part of the "U"s up, over and down got nearly el
Hi Rick, We need to look at the current distribution and amplitudes on a 5/16 wave single wire folded counterpoise (FCP) quite carefully. It really is NOT the same as two loaded 1/16 wave radials. Th
Hi, Richard, A bit of errata to correct my previous post: The difference in current will not be as large as I stated in my last post, because for the pair of 1/16 radials I did not divide the source
Hi, Carl, I repeat, a folded counterpoise is NO substitute for a dense and uniform system, which is what you had in the end. My question for you is if you had a 70 x 10 foot strip of that rocky stuff
In places where you can't get an eight foot rod to go down, there are alternatives. A four foot rod, or driving the rod down at an oblique angle will add some resistance, but not enough to change muc
I'd ask the question differently. If you have "before" data, and can remeasure after you hook them together to get some "after" data, and you are trying to advance science, go for it. But otherwise b
Yeah, from the incoming signals. But common mode is an unwanted violation of the desired pattern. Anything not admitted by the shape of the beverage wire is an unwanted violation of the desired patte
I found LB to be a little enigmatic. But so what? His forte' was modelling. He had all the professional licenses and did commercial modeling for some number of customers, including a lot of unheralde
There is no single spacing for phased elements. There is a continuous variation of both spacing and phasing which has a gazillion outcomes. Two antennas spaced a halfwave apart and fed 180 degrees ou
Models are very good in relative comparisons, with some very important caveats. 1) Hold everything possible constant between the two models, EXCEPT the singular issue(s) you are trying to trend. Don'
Carrying this line of thought to the business end of things, 12 ohms / 75 ohms = 16% of the voltage from your transmitted signal will be across the antenna and 84% of the voltage being dissipated in
It's pretty much demonstrated that there are a lot of people who are "tone deaf", that is, they simply cannot tell apart two tones of different frequencies if they are "somewhat" near to one another.
A reversible BOG does not work well because of the very lossy conductors laying on the ground. It can be done but you need to run a separate feedline to the opposite end and switch the feed circuitry
Note: the following is not a theoretical or untested antenna. There are working antennas in the field using the folded counterpoise described below, scoring well in contests**, in use up to a year an