Search results

It is finicky enough to set up two identical antennas that have virtually identical characteristics (aka twin). The bigger the difference in the antennas (or perhaps the less twin like is a better way of saying it?) the more difficult it will be, and the more skewed the output will end up being...

As stated above, many on the CB side swear by the 1/2 wavelength, although based on your posts on this and other forums in the past I am sure you are aware of that and simply mistyped. What happens to the tune if you use a barrel connector and add a two or three foot jumper? Optionally you can...

Yep, thats the world we live in, unfortunately. You could also say that a lie spreads half way around the world before the truth straps on its boots. The problem with this is, people also tend to believe whatever they hear first and disregard the rest. I don't think its necessarily an...

Thank you. Yes, he is trying to help others, or at least that is how it appears to me, which is mostly why I am spending so much time trying to explain things to him. I don't think he understands how wrong some of the things he is putting out actually are, and I don't blame him. As sad as it...

I wonder what would happen if I modeled this, it looks similar to a 4nec2 model with information added... Well, it appeared to have been a 4nec2 model but its not. Under closer inspection it appears to have been drawn in some photo editing program. Anyway, I matched the colors up for ease of...

Fair enough, at least for the ground rod discussion I will agree with this, with the caveat that if there are codes in your area and you are subject to inspection, follow the codes so you don't get dinged, which was the only real point I was trying to make in the first place. Aside from that...

Grounding option 2, for use when bedrock won't let you put the ground rod in straight down. In such a case, you want to put the 8 foot ground rod in as straight as possible, and still approaches bedrock. If bedrock is at least 8 feet below where the ground rod is placed there is no need to...

You did say you are "blathering" here so... I would like to know where you got this idea, I've not heard anyone say this before. Also, for anyone subject to inspections, I highly recommend checking the National Electric Code 250.53(G) (in the states, or whatever is used where you live) and go...

Does an N connector have less loss than a PL-259? Yes. Is there enough of a difference that you will ever notice it at CB band? No. In the video six-Shooter linked above, and in other tests I've seen, even after stringing several PL-259/SO-239's together, and in the case of the video above...

That radiation pattern reminds me of some of the vector models from back in the day. Its not exact, but I recall some of my models having little to no high angle radiation, and most of said radiation was in a low angle lobe. And it wasn't every model, just some of them. The shown...

That is something that most people never notice, but yes, your power meter will read higher power levels in that situation. That is actually normal. On the CB side, many golden screwdrivers noticed that if they have a high SWR, that the power meter reads higher. This has been used by many to...

Here is a link to one of ghz24's posts with a modifiable model for the astroplane. As I recall it wasn't the correct dimensions, but most of the dimensions were changeable, so it should be a good starting point. It works with the 4nec2 software...

There was a thread created by ghz24 I think that had several models that were adjustable, the ap was one of them. I have made some for myself in the past as well, I'll look to see if I still have any of them backed up if you need one. Ghz and my models are for the 4nec2 software. The DB

Yes and no. Lets start with the no. It is common knowledge that if the load does not match the impedance of the feed line, then as you travel up said feed line X and R will change. Where a lot of people go wrong is they assume that just because X and R are changing along the length of the...

Loading coils are one way of matching said antenna, but not the only way. Any form of impedance matching that can convert the feed point impedance of said antenna to a 50 ohm resonant load will work to match said antenna. In the case of this antenna, a loading coil is just one way to...

The logic I've never seen anyone use is the logic based on DC resistance. You seemed to think that all of my argument was based on materials, yet you actually missed the important part. Strangely my statements on materials was more of a side story yet you seem to think it is the end all and...

I see your logic now. Its a different way of looking at it than I have ever seen anyone use before... When working with DC, what you are saying makes perfect sense. Further, to some degree, some of that actually translates to what is happening on the antenna itself, even though the signal...

The context of my post was clear, I was referring to 1/4 wavelength antennas, not shortened antennas. When you take a full length 1/4 wavelength antenna of a given diameter, and compare it with a full length 1/4 wavelength of another diameter, the wider diameter full length 1/4 wavelength...

The problem with both claiming it is "more efficient" while at the same time having a "broader bandwidth" is larger diameter antennas gain their additional bandwidth by sacrificing efficiency. In this case you simply can't have both at once. Its simply the nature of how said antennas work...

As this is a direct feed design that does not require a special matching circuit, this antenna should be able to handle whatever the components of the antenna system itself can handle. The biggest weakness when it comes to power handling is likely either the coax feeding it or the connector...