Just got v6 Pro/4 installed, which has NEC 4.2 invoked with an extended accuracy ground (GN3). Had some problems which W7EL fixed in 6.03, rather quickly actually. I've run some above ground models a
Just got v6 Pro/4 installed, which has NEC 4.2 invoked with an extended accuracy ground (GN3). Had some problems which W7EL fixed rather quickly in 6.03. I've run some above ground models, 160m L ove
Hardly so. Your question is ultimately very general, philosophical, and at the heart of modeling before constructing. Modeling as the ultimate answer is not a common opinion. Modeling just allows you
With the sloper you mention, what you are describing is the tower and the rest of the conducting environment controlling the resonance of the antenna system. Simply told the particulars of all the co
Hi Karin, The lurking-in-the-shadows, most often ignored 1000 pound gorilla in the room, is that the driving impedances and performance of four squares depend hugely on the type, quality and specific
Hello all, A year and a half after my dear friend W0UCE suddenly became a silent key, k2av.com is up with the FCP information that Jack kept on his web site, updated and expanded. A lot of informatio
Hi, Terry, Short answer: Mostly people never try double FCP's because they don't have the room. In addition, something we can't model, there are technical suspicions why double wire may not give you
Hi Everett, Have you read k2av.com [Placing an FCP] ? And had a look at k2av.com [Loss List] ? An FCPs most important aspect is avoiding loss factors. Going through bushes or through tree branches pu
Hi, Brent, Mark Brent, I received your earlier direct email, but much has been going on, and then there was Florence to harass us here in NC. Locally, Florence washed out my next door neighbor's driv
The moderator (me) has no problems with this subject. I have no deputy moderators, but will and have intervened if something gets out of hand. This is a good discussion that I find interesting. It ap
Hi Gedas, If I have read you correctly...... First, set your ground descriptions to "very poor" or "extremely poor". In reality, ground losses on 630m will be huge and unavoidable, so one might as we
Hi Gedas, If you pick any of the fixed width fonts, that diagram should display correctly. If you are committing to a k9yc block, then just read his graph and put that in the load at the top of wire
Very interesting. You should note from the resonance Z of 42 ohms and the combined R in the big coils of 40 ohms that just about all the power is dissipated in the coils. This is why people have gone
At this point in the experiment, you wind it, put it on the analyzer, read it, use it. It will show the separate R and X. Measure, measure, measure and type the facts into the EZNEC loads. The more s
Hi Dave, What are you using for the vertical's counterpoise? What are you using for the the ground type? Where is your source placed? These are essential to answer your question. 73, Guy ____________
Hi Dave, Question A) From your description, I need to know the height above ground. Question B) Exactly what did you mean by tuned radials? Do you mean radials carefully adjusted to 1/4 wave, or smal
This thread is for Dave. So I'd rather not hijack this thread for a separate and likely lengthy topic. So I will not comment here. Please start a separate thread with a separate subject that includes
Hi Dave, Just to make sure I didn't totally wander off the reservation in replying to your original question, you asked about the ratio of segment length to conductor diameter. I HAVE heard segment f
Hi Kevin. There are a lot of "gotcha" situations in antenna modeling where the math and the method do not deliver correct results (or worse) if those gotcha's are not avoided. The reasons are in the
Hi, Kevin, When the wires converge to a close point, like a feed point, the segments close to the convergence should be equal and small. LIterally modeling two inches of connection wire at a feedpoin