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As someone who uses the modeling software of the model posted above, I had concerns on the accuracy of how it was being presented and what was being said about it. I noticed right off the bat that its not the full image of the models output, but cut off. Then statements were made since that I...

He clearly hasn't read the studies on this forum mostly by @bob85 and @Marconi with additional contributions from a few others on this forum, or it is possible that he read raid studies and didn't understand them, certain aspects of how this antenna actually functions take a certain...

Wow, just wow. Did you actually look at the models in that linked album? I have a few suggestions for you. Look at what is being shown in the album, specifically the two models at 36 feet above ground. I will post them here side by side to show you... 65086510 Does doubling the number of...

No, you won't notice a difference between any of these points. That is why in the past I have stated that I don't have a problem with people tuning to any of these points. There are people that tune to the lowest SWR because they think it will make a difference, but there are those that know...

Damn, lots been said while I was at work today... Most has been addressed so I will talk about the more relevant parts to me. I've been talking about this on the forum for years now, this thread is the first time I recall anyone else mentioning it... I should also add nomadradio's post from...

Thank you. I have a stage system of my own, I use it to categorize what someone is likely to understand or not. Each stage is based on a conceptual leap from the stage before, and the further you get the harder it is to jump from one stage to the next. Your stages one and two are essentially...

Not bad homer, that is something I have said multiple times in the past and it definitely applies here. However, the first thing that came to mind when I read his post was the antenna you could get up to a higher tip height. The reason is as you posted... I agree, desert ground is poor as...

My stage 3 was different, namely, realize that neither VSWR or resonance necessarily gets you to peak output power, experiment with field strength meters, then spectrum analyzers, and now a two port VNA with a second antenna hooked up to receive remote signals. I would love to have something...

I would expect that someone of your experience could McGyver something, especially on the 11 meters band... Wait, those words together sound familiar for some reason... :LOL: For those that can't do such things, luckily their isn't to much of a cost in being "close enough", (yep, that is...

The answer is "yes but". If an antenna is to long electrically, you will see SWR go back up. However, most 102" whip installs are so wide banded that it takes quite a bit of length to get SWR to go up to the point of being dangerous. This is half true. If you just looking at the whip length...

Looks like a Stargun antenna. Most of us laugh at them but there are still a few that actually swear by them... The DB

He modeled that antenna. The modeling software takes into account radiation efficiency. While EZnec doesn't show the efficiency data directly (at least I don't think it does, @Marconi can you confirm this for me), the 4nec2 software, which uses essentially the same engine, does. Any model...

The short version of all this is ground mounted antenna systems that have all those radials and elevated antenna systems have very different needs. The not so short answer... When it comes to the number of radials of a ground mounted antenna vs elevated antenna for hams, that is something that...

Just for completeness on Marconi's image of W8JI's site. If you change the height of that dipole, the gain will change. Changing the ground quality can have the same effect. Finally, it is referring to a horizontal dipole, a vertical dipole will have both a different amount of gain and...

Thank you for your reply. The DB

Now I've not owned breedlove products, but I am aware of their products, and at least looking at them online they look like they are very well made. You are the first person I have ever seen say they are low quality. Everyone else I have ever seen talk about these across multiple forms...

A t2lt is a near center fed dipole, and should have essentially the same pattern as a center fed dipole. However, as a vertical dipole, both sides won't be perfectly in balance like a horizontal dipole as the earth below will always have more of an effect on the lower leg of said dipole than...

If your looking for a quick deploy antenna, go elevated. I would use a 5/8 design that doesn't require radials, and choke the coax both at about a foot below the feed point and about 9 feet below the feed line. Yep, I said it, two chokes. Also, if you have a mast, make the part the antenna it...

I agree with this. When I first saw the "blue wire" on AP models, at first I thought that there was no current flow on said wire, but it turns out that their was in fact current flow, just the same amount in both directions. The DB

The Vector models didn't have this effect. I am not sure why the Vectors don't have this effect, at least to the extent of the AP. The baskets both should add capacitance to whatever is inside them, yet when I model the Vectors the voltage node is a few feet past the basket, not about 9 feet...